Type: Remote

Let's talk about You:

• 10+ years of proven experience in multi-team project management, demonstrating the ability to oversee complex projects with multiple stakeholders and deadlines
• 3+ years of direct experience in people and resource management; adept at leading teams to success while optimizing resource allocation and productivity
• Project Management: Proficiency in applying both PMI and Agile principles, with a track record of implementing these methodologies based on the need of project environments
• Cross-functional Collaboration: Demonstrated expertise in partnering with cross-functional teams, and coordinating individuals from diverse disciplines to foster collaboration and ensure project success.
• Technical Acumen: Understanding of technical design and web application concepts, enabling active participation in discussions and providing valuable insights, though not necessarily driving technical decisions
• Leadership Abilities: Proven leadership skills, capable of directing project operations and motivating teams to achieve set goals efficiently and effectively
• Problem Solving: Expertise in problem-solving and solution proposal, with a proactive approach to addressing challenges and offering innovative solutions rather than merely identifying problems
• Business Acumen: Demonstrated knowledge of business processes and systems, enabling informed decision-making and alignment of project objectives with organizational goals
• Expertise in Reporting: Proficiency in reporting project progress, risks, and path to recovery to the leadership team, utilizing clear and concise communication to provide timely updates and insights.

Will be a plus:

• Certifications: Preference may be given to candidates holding relevant certifications such as PMP (Project Management Professional) or Agile certifications
• Industry Experience: Previous experience in a growth startup may be advantageous
• Team Leadership Experience: Experience leading and developing project teams, fostering a collaborative and supportive work environment conducive to achieving project objectives.

Responsibilities:

• Creating long- and short-term plans, including setting targets for milestones and adhering to deadlines that identify resource and budgetary needs
• Ensure project costs are under budget, recognizing and communicating risks that a project could experience delays or go over budget
• Coordinate and manage communication between the PO, Dev team and other client teams to define requirements, project goals, status, and define delivery timeframes
• Proficient in coordinating, organizing and formalizing discussions with internal and external clients
• Detail-oriented and well organized. Able to track tasks and statuses at a granular level with developers and testers, able to facilitate and summarize technical discussions
• Prepare portfolio status reports for leadership
• Identify and document risks; communicate and escalate project issues as required
• Coordinate with other PMs to accomplish organizational goals effectively
• Provide feedback, advice, project updates and encouragement to the team members
• Manage deadlines and push the team to ensure timeliness
• Develop internal communication strategies useful in ensuring communication between various departments and organization
• Host project meetings at least once a week with team and managers
• Facilitate the documentation of customer requirements and business process using document analysis, requirements workshops, business process description, and use case scenarios

Why join us:

• Work Anywhere: Embrace the freedom to work from anywhere in the world. Your office could be a beach, a cozy café, or wherever you feel most inspired
• Flexibility: Wave goodbye to the 9-to-5 grind. We believe in a flexible working schedule that fits your life.
• Sponsored Education: We're invested in your growth. Enjoy sponsored education and training, ranging up to 50%.
• Personal Development: We're not just about work; we're about your growth. Craft your personal development plan and watch your career soar.
• Regular Salary Reviews: Your hard work won't go unnoticed. We conduct regular salary reviews to ensure you're fairly rewarded
• Career Advancement: The sky's the limit! Move up the ladder based on your performance, and your career trajectory could surprise you
• Tako Food: We believe in feeding your creativity and productivity. Enjoy a tasty treat on us with our special Tako Food offering
• Corporate Events: From team outings to memorable celebrations, we know how to have a good time together
• English Classes: Enhance your language skills and open doors to global opportunities with our sponsored English classes
• Health Matters: Your health is our priority. Get your annual flu shot on us
• Work Equipment: We provide top-notch tools. Receive a compensation of $600 for your work equipment
• Core Value Awards: Being true to our core values pays off! Nominate peers for the Core Value Awards and enjoy a potential bonus
• Paid vacation, sick leaves, national holidays, and bonus rewards for birthdays, weddings, and newborns.

Let's talk about You:

• 5+ years of professional experience in QA, testing complex web-based applications, preferably in B2B SaaS domains
• Strong knowledge of API testing tools such as Postman or Swagger, with experience testing RESTful APIs
• Deep understanding of software QA methodologies including shift left, regression, UAT, performance, load and stress testing
• Hands-on experience with CI/CD tools such as Jenkins or GitLab CI/CD
• Proficiency in SQL for database testing and manipulation
• Excellent attention to detail and accuracy, with a proactive approach to problem-solving
• Upper-Intermediate English proficiency, with excellent interpersonal skills and a collaborative mindset
• Proactive approach to investigating and resolving issues, demonstrating self-starter discipline
• Demonstrated commitment to continuous learning and adaptation in the QA field
• Familiarity with automation testing frameworks like Selenium, Cucumber or Cypress is a plus
• Experience with telemetry tools like Datadog is a plus

Will be a plus:

• Practical experience with Google Cloud or Amazon AWS
• Experience in writing JavaScript applications
• Google DFP, Operative.ONE, Rubycon, ADX

Responsibilities:

• Execute manual testing procedures meticulously to ensure the delivery of high-quality products that meet customer expectations
• Conduct thorough testing of software features to identify defects and ensure they are resolved before release
• Perform manual testing according to product requirements
• Create, update, and maintain various types of test documentation including test plans, test cases, test scripts, and test reports
• Ensure documentation is organized, up-to-date, and easily accessible for the team
• Collaborate closely with development and product teams to identify and define test cases based on requirements
• Advocate for the implementation of proper testing pyramid strategies to optimize testing efforts and coverage
• Engage in daily communication with team members to provide updates on testing progress, issues encountered, and potential risks
• Attend and actively contribute to various meetings such as daily stand-ups, demos, and knowledge-sharing sessions
• Contribute to continuous improvement of product, quality and processes

Why join us:

• Work Anywhere: Embrace the freedom to work from anywhere in the world. Your office could be a beach, a cozy café, or wherever you feel most inspired
• Flexibility: Wave goodbye to the 9-to-5 grind. We believe in a flexible working schedule that fits your life.
• Sponsored Education: We're invested in your growth. Enjoy sponsored education and training, ranging up to 50%.
• Personal Development: We're not just about work; we're about your growth. Craft your personal development plan and watch your career soar.
• Regular Salary Reviews: Your hard work won't go unnoticed. We conduct regular salary reviews to ensure you're fairly rewarded
• Career Advancement: The sky's the limit! Move up the ladder based on your performance, and your career trajectory could surprise you
• Tako Food: We believe in feeding your creativity and productivity. Enjoy a tasty treat on us with our special Tako Food offering
• Corporate Events: From team outings to memorable celebrations, we know how to have a good time together
• English Classes: Enhance your language skills and open doors to global opportunities with our sponsored English classes
• Health Matters: Your health is our priority. Get your annual flu shot on us
• Work Equipment: We provide top-notch tools. Receive a compensation of $600 for your work equipment
• Core Value Awards: Being true to our core values pays off! Nominate peers for the Core Value Awards and enjoy a potential bonus
• Paid vacation, sick leaves, national holidays, and bonus rewards for birthdays, weddings, and newborns.

Let's talk about You:

• 10+ years of professional experience in developing RoR based web applications, with a proven track record of successful project delivery
• Proven track record of leading backend development projects from concept to production
• Excellent knowledge of Ruby, Rails, Postgres, Redis, and Sidekiq
• Strong software engineering fundamentals, including a deep understanding of algorithms and data structuresv
• Proficient in creating technical design documents for implementing features
• Hands-on on experience with using telemetry tools like Datadog and Rollbar for reliability and performance improvement
• Strong software engineering fundamentals, including a deep understanding of algorithms and data structures
• Expert at delivering high quality code using unit and integrated tests
• Advanced knowledge of scaling cloud based application; familiarity with Angular is a strong plus
• Upper-Intermediate English proficiency, with excellent interpersonal skills and a collaborative mindset
• Proactive approach to investigating and resolving issues, demonstrating self-starter discipline

Will be a plus:

• Practical experience with Google Cloud or Amazon AWS
• Experience in writing JavaScript applications
• Google DFP, Operative.ONE, Rubycon, ADX

Responsibilities:

• Lead the design, development, and maintenance of our Ruby on Rails backend systems
• Collaborate with product managers, designers, and other stakeholders to understand requirements and translate them into technical solutions
• Architect high quality, scalable and maintainable backend solutions that align with business objectives
• Provide technical leadership and mentorship to junior developers, fostering a culture of continuous learning and improvement
• Ensure code quality, performance, and security through code reviews, testing, and best practices
• Stay updated on emerging technologies and trends in Ruby on Rails development
• Tuning the application to make it more performant and scalable
• Brainstorm solutions for challenging tasks, contributing innovative ideas to enhance product development

Why join us:

• Work Anywhere: Embrace the freedom to work from anywhere in the world. Your office could be a beach, a cozy café, or wherever you feel most inspired
• Flexibility: Wave goodbye to the 9-to-5 grind. We believe in a flexible working schedule that fits your life.
• Sponsored Education: We're invested in your growth. Enjoy sponsored education and training, ranging up to 50%.
• Personal Development: We're not just about work; we're about your growth. Craft your personal development plan and watch your career soar.
• Regular Salary Reviews: Your hard work won't go unnoticed. We conduct regular salary reviews to ensure you're fairly rewarded
• Career Advancement: The sky's the limit! Move up the ladder based on your performance, and your career trajectory could surprise you
• Tako Food: We believe in feeding your creativity and productivity. Enjoy a tasty treat on us with our special Tako Food offering
• Corporate Events: From team outings to memorable celebrations, we know how to have a good time together
• English Classes: Enhance your language skills and open doors to global opportunities with our sponsored English classes
• Health Matters: Your health is our priority. Get your annual flu shot on us
• Work Equipment: We provide top-notch tools. Receive a compensation of $600 for your work equipment
• Core Value Awards: Being true to our core values pays off! Nominate peers for the Core Value Awards and enjoy a potential bonus
• Paid vacation, sick leaves, national holidays, and bonus rewards for birthdays, weddings, and newborns.

Let's talk about You:

• 5+ years of professional experience in developing RoR based web applications, with a proven track record of successful project delivery
• Excellent knowledge of Ruby, Rails, Postgres, Redis, and Sidekiq
• Hands-on on experience with using telemetry tools like Datadog and Rollbar for reliability and performance improvement
• Strong software engineering fundamentals, including a deep understanding of algorithms and data structuresv
• Expert at delivering high quality code using unit and integrated tests
• Advanced knowledge of scaling cloud based application; familiarity with Angular is a strong plus
• Upper-Intermediate English proficiency, with excellent interpersonal skills and a collaborative mindset
• Proactive approach to investigating and resolving issues, demonstrating self-starter discipline

Will be a plus:

• Practical experience with Google Cloud or Amazon AWS
• Experience in writing JavaScript applications
• Google DFP, Operative.ONE, Rubycon, ADX

Responsibilities:

• Develop new functionality and maintain existing applications, including refactoring, bug fixing, and migrating from old frameworks
• Tuning the application to make it more performant and scalable
• Participate in daily planning and demo sessions with the team
• Brainstorm solutions for challenging tasks, contributing innovative ideas to enhance product development
• Contribute to continuous improvement of product, quality and processes with a strong focus on root cause analysis

Why join us:

• Work Anywhere: Embrace the freedom to work from anywhere in the world. Your office could be a beach, a cozy café, or wherever you feel most inspired
• Flexibility: Wave goodbye to the 9-to-5 grind. We believe in a flexible working schedule that fits your life.
• Sponsored Education: We're invested in your growth. Enjoy sponsored education and training, ranging up to 50%.
• Personal Development: We're not just about work; we're about your growth. Craft your personal development plan and watch your career soar.
• Regular Salary Reviews: Your hard work won't go unnoticed. We conduct regular salary reviews to ensure you're fairly rewarded
• Career Advancement: The sky's the limit! Move up the ladder based on your performance, and your career trajectory could surprise you
• Tako Food: We believe in feeding your creativity and productivity. Enjoy a tasty treat on us with our special Tako Food offering
• Corporate Events: From team outings to memorable celebrations, we know how to have a good time together
• English Classes: Enhance your language skills and open doors to global opportunities with our sponsored English classes
• Health Matters: Your health is our priority. Get your annual flu shot on us
• Work Equipment: We provide top-notch tools. Receive a compensation of $600 for your work equipment
• Core Value Awards: Being true to our core values pays off! Nominate peers for the Core Value Awards and enjoy a potential bonus
• Paid vacation, sick leaves, national holidays, and bonus rewards for birthdays, weddings, and newborns.

What You Will Do:

• Collaborate with senior members of the team to design, implement, and deploy machine learning models and systems
• Participate in all stages of the machine learning development lifecycle, from data collection and preprocessing to model evaluation and deployment.
• Work closely with cross-functional teams to understand business requirements and translate them into machine learning solutions.
• Contribute to the improvement of existing machine learning pipelines and infrastructure.
• Stay up-to-date with the latest trends and technologies in machine learning and share knowledge with the team.

Who You Are:

• You are an experienced machine learning engineer with experience in developing and deploying machine learning models. 
• You have a solid understanding of machine learning concepts and algorithms, with hands-on experience in at least one framework such as TensorFlow or PyTorch. 
• You have strong problem-solving skills and attention to detail. 
• You are eager to learn and grow in a collaborative team environment. 
• You have good communication skills and can effectively communicate technical concepts to both technical and non-technical stakeholders

Requirements:

• Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field.
• 3+ years of experience in machine learning engineering or a related field.
• Proficiency in Python and experience with machine learning libraries such as PyTorch/TensorFlow/Jax, spaCy, NLTK, Hugging Face Transformers, etc.
• Familiarity with machine learning algorithms and techniques, including deep learning, reinforcement learning, and natural language processing.
• Experience with data preprocessing, feature engineering, and model evaluation.
• Knowledge of software development best practices, version control systems, and collaborative coding workflows, CI/CD, and automated testing.
• Excellent communication and teamwork skills, with the ability to work effectively in a collaborative environment.

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other

What You Will Do:

• Collaborate with senior members of the team to design, implement, and deploy machine learning models and systems
• Participate in all stages of the machine learning development lifecycle, from data collection and preprocessing to model evaluation and deployment.
• Work closely with cross-functional teams to understand business requirements and translate them into machine learning solutions.
• Contribute to the improvement of existing machine learning pipelines and infrastructure.
• Stay up-to-date with the latest trends and technologies in machine learning and share knowledge with the team.

Who You Are:

• You are an experienced machine learning engineer with experience in developing and deploying machine learning models. 
• You have a solid understanding of machine learning concepts and algorithms, with hands-on experience in at least one framework such as TensorFlow or PyTorch. 
• You have strong problem-solving skills and attention to detail. 
• You are eager to learn and grow in a collaborative team environment. 
• You have good communication skills and can effectively communicate technical concepts to both technical and non-technical stakeholders

Requirements:

• Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field.
• 3+ years of experience in machine learning engineering or a related field.
• Proficiency in Python and experience with machine learning libraries such as PyTorch/TensorFlow/Jax, spaCy, NLTK, Hugging Face Transformers, etc.
• Familiarity with machine learning algorithms and techniques, including deep learning, reinforcement learning, and natural language processing.
• Experience with data preprocessing, feature engineering, and model evaluation.
• Knowledge of software development best practices, version control systems, and collaborative coding workflows, CI/CD, and automated testing.
• Excellent communication and teamwork skills, with the ability to work effectively in a collaborative environment.

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other

What you will do:

• Work closely with product management and engineering teams to integrate security measures into the development life cycle of websites, mobile applications, and B2B interfaces.
• Perform security assessments and code reviews to identify vulnerabilities and recommend mitigation strategies.
• Develop and implement security guidelines, best practices, and standards for product development.
• Collaborate with cross-functional teams to ensure secure software development practices and security awareness.
• Investigate and respond to security incidents and breaches, implementing necessary corrective actions.
• Monitor security trends, emerging threats, and industry best practices to keep our systems resilient and up-to-date.
• Assist in creating and maintaining a culture of security within the organization.
• Conduct security training and awareness programs for development and product teams.

Who You Are:

• Bachelor's degree in Computer Science, Information Security, or a related field.
• A minimum of 3 years of experience in a security engineering role, particularly in web and mobile application security.
• Strong understanding of application security concepts, best practices, and common vulnerabilities.
• Familiarity with security standards, including OWASP, CWE, and secure coding practices.
• Experience with security assessment tools and methodologies.
• Strong problem-solving and communication skills to collaborate with cross-functional teams effectively.
• Security certifications such as CISSP, CSSLP, CEH, or relevant credentials are a plus.
• Familiarity with mobile application security (iOS and Android) and B2B security considerations is advantageous.
• PLUS, if you have some development experience and/or working knowledge of code.

Nice to have:

• Exposure to machine learning platforms and practices
• Experience with Spring Boot or FastAPI
• Experience with cloud platforms (e.g. AWS, Azure, GCP)
• Experience with infrastructure as code tools like CDK or Terraform
• Experience with containerization technologies (e.g. Docker)
• Experience with container services like Kubernetes or ECS
• Experience with distributed computing such as Snowflake or Apache Spark

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other

What you will do:

• Collaborate with data scientists and machine learning engineers to build backend systems and integrate models into them.
• Collaborate with cross functional teams of data scientists, frontend engineers, and product managers to deliver end-to-end solutions.
• Design, implement, and maintain backend services required for hosting, serving, or connecting to machine learning models or AI-powered applications.
• Design and implement APIs to facilitate communication between client systems and machine learning components, and to expose machine learning functionalities to other areas of the site.
• Ensure APIs are well-documented and provide a clear interface for interacting with components of the machine learning platform.
• Optimize backend infrastructure to handle varying machine learning workloads efficiently at scale.
• Develop and maintain CI/CD pipelines for automated testing, deployment, and monitoring of systems and infrastructure.

Who You Are:

• Computer Science degree or equivalent experience
• At least 5 years’ experience of commercial software development.
• Willingness and ability to take on new projects and technologies.
• Ability to break down complex problems into simple solutions.
• Strong analytical skills and desire to write clean, correct and efficient code.
• Sense of ownership, urgency and pride in your work.
• Familiarity with microservice architecture and principles
• Experience building microservices with Java or Python
• Hands-on experience building RESTful APIs
• Strong understanding of database systems and proficiency in SQL

Nice to have:

• Exposure to machine learning platforms and practices
• Experience with Spring Boot or FastAPI
• Experience with cloud platforms (e.g. AWS, Azure, GCP)
• Experience with infrastructure as code tools like CDK or Terraform
• Experience with containerization technologies (e.g. Docker)
• Experience with container services like Kubernetes or ECS
• Experience with distributed computing such as Snowflake or Apache Spark

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other

What you will do:

• Provide the organization’s data consumers high quality data sets by data curation, consolidation, and manipulation from a wide variety of large scale (terabyte and growing) sources
• Build first-class data products and ETL processes that interact with terabytes of data on leading platforms such as Snowflake and BigQuery
• Partner with our Analytics, Product, CRM, and Marketing teams
• Be responsible for the data pipelines’ SLA and dependency management
• Write technical documentation for data solutions, and present at design reviews
• Solve data pipeline failure events and implement anomaly detection
• Work with various teams from Data Science, Product owners, to Marketing and software engineers on data solutions and solving technical challenges
• Mentor junior members of the team

Who You Are:

• Bachelor’s degree in Computer Science or related field
• 6+ years experience in commercial data engineering or software development
• Experience with Big Data technologies such as Snowflake, Databricks, PySpark
• Expert level skills in writing and optimizing complex SQL; advanced data exploration skills with proven record of querying and analyzing large datasets
• Solid experience developing complex ETL processes from concept to implementation to deployment and operations, including SLA definition, performance measurements and monitoring
• Hands-on knowledge of the modern AWS Data Ecosystem, including AWS S3
• Experience with relational databases such as Postgres, and with programming languages such as Python and/or Java
• Knowledge of cloud data warehouse concepts
• Experience in building and operating data pipelines and products in compliance with the data mesh philosophy would be beneficial. Demonstrated efficiency in treating data, including data lineage, data quality, data observability and data discoverability
• Excellent verbal and written communication skills. Ability to convey key insights from complex analyses in summarized business terms to non technical stakeholders and also ability to effectively communicate with other technical teams
• Strong interpersonal skills and the ability to work in a fast-paced and dynamic environment
• Ability to make progress on projects independently and enthusiasm for solving difficult problems

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other

What you will do:

• Seek out new opportunities to apply data science and machine learning to the business (e.g., personalized recommendations, NLP, customer modeling) across all channels (e.g., Web, email, paid marketing)
• Work with other teams in solving problems and identifying opportunities
• Lead the design of machine learning models to solve a variety of core business problems in customer acquisition, retention, and reactivation
• Automate ETL pipelines
• Prototype, evaluate, deploy and maintain new models in production
• Design AB tests and analyze their results
• Discover new ways to analyze and interpret the data
• Communicate progress and interpretation of experimental results to technical and business stakeholders
• Lead the determination of next steps for each project

Who You Are:

• PhD or Masters in Computer Science, Engineering, Statistics, or related field preferred
• At least 3 years of relevant, practical experience
• Strong software engineering skills
• Experience with Natural Language Processing
• Experience with LLM prompt engineering
• Strong background in machine learning and statistics
• Strong background in machine learning and statistics
• Solid foundation on data structures and algorithms
• Proficiency in Python for numerical/statistical programming (our group relies heavily on Pandas/Numpy/Scikit-learn/PyTorch)
• Ability to write complex SQL queries
• Experience with big data technologies, such as Snowflake and Spark
• Knowledge of AB test design and analysis
• Track record of leading the deployment and maintenance of models

Nice to Haves:

• Exposure to LLM offerings from various vendors (ChatGPT, LLama, PaLM…)
• Experience with online businesses
• Experience with Recommender Systems

Why join us:

• Ability to work remotely from anywhere in the world
• Close cooperation with the development team and client
• Opportunity to influence product development
• Professional growth: the certification preparation course is free for our specialists. The company pays for two attempts to pass the exam, regardless of the exam result
• We cover English classes (with a native speaker)
• Boost professional brand: you can participate in local conferences as a listener or as a speaker
• Regular team buildings: have fun with teammates
• Gifts for significant life events (marriage, childbirth)
• Tech and non-tech Zazmic Communities: support and share experience with each other