Jobs

Outstaff Hiring: Remote – Contract

About the Role:
Start Date: Ideally in May

Join a small, agile remote engineering team where you’ll work across the entire tech stack – from building new features and refining existing systems, to DevOps and architecture. You’ll collaborate directly with the CTO and Head of Engineering, contributing to a fast-moving product in a tech-driven company.

Key Responsibilities:

• Write well-tested production code in Ruby and JavaScript
• Refactor legacy code for better maintainability
• Participate in code reviews and embrace feedback
• Collaborate with business and technical stakeholders
• Monitor production systems and provide tech support
• Maintain and improve the CI/CD pipeline

• Embrace innovation and continuous learning

   

Skills & Qualifications:

Required:

• Proficient in at least one OOP language (Ruby not mandatory)
• Experience building production web apps with MVC frameworks
• Understanding of OOP, SOLID principles, and TDD
• Strong Git skills (e.g., command-line rebasing)
• Comfortable with DevOps tasks
• Passionate about programming and continuous improvement

• Open to working with legacy systems

   

Nice-to-Have Skills:

• Pair programming experience
• Interest in automotive, logistics, or marketplace products

• Front-end or back-end leaning full-stack developers welcome

   

Technologies in Use:

• Ruby on Rails
• JavaScript (React, Redux, JQuery Mobile)
• PostgreSQL, SQL Server, Elasticsearch
• Heroku, AWS
• Docker, Webpack, Grunt, CircleCI
• Meltano, Snowflake, Looker

Requirements:

• 5+ years of experience in backend development.
• Strong expertise in Ruby and Ruby on Rails.
• Solid experience with relational and NoSQL databases (PostgreSQL, Redis, MongoDB).
• Understanding of Docker and Kubernetes orchestration principles.
• Experience with cloud platforms (AWS, GCP, Azure).
• Familiarity with CI/CD pipelines (GitHub Actions, Jenkins, ArgoCD).
• Good spoken and written English (Upper-Intermediate or higher).
• Ownership mindset, proactive attitude, and strong problem-solving skills.

Nice to have:

• Knowledge of Python (used for ML integration and microservices).
• Experience with Elasticsearch.
• Previous experience with MLOps/AI platforms or large-scale distributed systems.

Responsibilities:

• Design and implement robust backend components for a large-scale AI platform.
• Develop APIs and services to support ML workloads and complex data pipelines.
• Integrate cloud-native solutions (AWS, GCP, Azure) into the platform.
• Collaborate closely with DevOps, ML engineers, and frontend teams.
• Focus on high availability, performance optimization, scalability, and security.
• Continuously improve system architecture and development processes.

We offer:

• Competitive salary depending on your experience
• Professional development opportunities
• Study and practice of English: courses and communication with colleagues and clients from different countries
• Yoga classes
• Compensation package (paid vacation, sick leaves)
• Flexible working hours (from 9-11 to 18-20)

• Comfortable office or the possibility to work remotely

   

  Project:

   

  Our Israeli client is redefining the world of AI and MLOps by offering a code-first platform that empowers the largest companies globally to scale their machine learning with an unparalleled end-to-end solution. From innovative startups to Fortune 500 giants, teams use the platform to develop cutting-edge ML models across industries like finance, gaming, automotive, manufacturing, and e-commerce.

  We are looking for a highly motivated and detail-oriented Backend Developer with strong expertise in Ruby and scalable systems development. You will join a highly skilled engineering team building a world-class AI infrastructure.

   

If your qualifications and experience match the position's requirements, our recruitment team will contact you within a week at the earliest. Please rest assured that we carefully consider each candidate, but due to the large number of applications, the review and further processing of your candidacy may take some time.

Hello everyone 👋

At Intobi, we're a software and product development company passionate about driving innovation and progress.

We help our clients succeed by delivering custom-built tech solutions designed to meet their unique needs.

Our expertise lies in developing cutting-edge Web and Mobile applications.

We’re seeking a success-driven Ruby on Rails Developer for one of our clients.

Full-Time, Long-Term position, work from the office or remote.

Requirements:

— At least 4 years of professional experience developing software;

— Proficiency with Ruby / Ruby on Rails;

— Experience with test-driven/behavior-driven development, particularly RSpec;

— Proficiency with both document and relational database systems (particularly MySQL, PostgreSQL);

— Proven ability to write readable code and efficient, scalable software;

— English — upper Intermediate.

What we offer:

— Competitive salary;

— Paid vacation and sick leaves;

— Paid day off (Ukrainian holidays);

— Ability to work from our cozy office;

— 8 hours a working day, 5 days a week;

— Career growth potential;

— Friendly team and corporate events.

Please send your CV here or via email.

Should the first stage be successfully completed, you’ll be invited to a personal interview.

Hello everyone 👋

At Intobi, we're a software and product development company passionate about driving innovation and progress.

We help our clients succeed by delivering custom-built tech solutions designed to meet their unique needs.

Our expertise lies in developing cutting-edge Web and Mobile applications.

We’re seeking a success-driven Ruby on Rails Developer for one of our clients.

Full-Time, Long-Term position, work from the office or remote.

Requirements:

— At least 4 years of professional experience developing software;

— Proficiency with Ruby / Ruby on Rails;

— Experience with test-driven/behavior-driven development, particularly RSpec;

— Proficiency with both document and relational database systems (particularly MySQL, PostgreSQL);

— Proven ability to write readable code and efficient, scalable software;

— English — upper Intermediate.

What we offer:

— Competitive salary;

— Paid vacation and sick leaves;

— Paid day off (Ukrainian holidays);

— Ability to work from our cozy office;

— 8 hours a working day, 5 days a week;

— Career growth potential;

— Friendly team and corporate events.

Please send your CV here or via email.

Should the first stage be successfully completed, you’ll be invited to a personal interview.

We are looking for candidates with strong backend engineering experience, particularly in Ruby, AWS, and Terraform, to contribute to the ongoing enhancement of a key data reporting and analytics module. The work involves building data visualisation and reporting features that will provide deeper insights into physical performance metrics and
trends. This is a fully remote role, though candidates must be available during UK business hours (GMT/BST). Occasional travel may be required.

About the Project:
The engineers will be working on enhancing a newly released data reporting and
visualisation module. The module has been in development for two years and is now in a
phase where iterative improvements can deliver significant value with relatively low effort.

The engineering team follows SCRUM methodologies and is well-established, consisting of
Backend, Frontend, Product, Design, and QA professionals. Engineers will be paired with a
buddy for onboarding, and development processes are mature and well-documented.

The focus will be on:

• Enhancing and expanding API capabilities
• Optimising data processing and pipelines
• Improving data visualisation and reporting features
• Ensuring robust security and compliance standards

Technical Requirements:

• Ruby (5+ years) — Proficiency in backend development using Ruby
• AWS (5+ years) — Strong cloud infrastructure experience
• MySQL (5+ years) — Database design and optimisation
• Terraform (2+ years) — Infrastructure as Code experience
• API Development — Experience designing and maintaining RESTful APIs
• Security & Compliance Awareness — Experience working in a business following audited security practices (e.g. ISO27001)

Soft Skills:

• Ability to work independently yet collaboratively
• Experience working within a mature engineering culture
• Comfortable working in a matrix management structure
• Strong problem-solving skills and a user-focused mindset

Responsibilities:

• Design, build, and maintain scalable backend services, APIs, and databases
• Collaborate with frontend engineers to deliver end-to-end features
• Support data scientists in implementing data processing models
• Ensure security best practices, including data encryption and authentication/authorisation
• Maintain and enhance AWS infrastructure using Terraform
• Participate in code reviews, ensuring high standards and maintainability
• Debug production issues across multiple layers of the stack
• Improve engineering processes, tooling, and deployment pipelines

Success Criteria:

Efficient Feature Delivery — Enhancing the reporting module with minimal defects
Stable & Scalable Code — Writing tested, maintainable, and efficient backend services
Strong Security Practices — Adhering to security standards and best practices
Smooth CI/CD Process — Contributing to a reliable and automated deployment pipeline

Working Practices:

• Current team of 9 consisting of Product, Design, QA, Front and Back End engineers, including Team Lead
• Buddy to be provided. Onboarding well documented
• Agile development practices, with Scrum methodology
• Daily standups (15 mins)
• Weekly backlog review (1hr)
• Weekly sprint planning (1 hr)
• Biweekly sprint demos (1 hr)
• Biweekly retros (1hr)

Additional Information:

Travel: Potentially travel to the client’s HQ (UK), 1-2 times per year. Travel and accommodation costs will be covered separately.

Laptop & Equipment: Provided post-verification.

Onboarding: Comprehensive onboarding process including security training and development environment setup.Tooling: Jira, Slack, Github, Google Workspace

Assessment Process:

1. CV & Code Review — Evaluating experience and relevant projects
2. Initial Technical Interview (20 mins) — Focused on experience and background
3. Technical Assessment — Format and duration to be agreed with the client
4. Final Interview with Client — Soft skills and cultural fit assessment

What We Offer:

• Full remote with flexible business hours;
• Two weeks of vacation per year (10 working days), next year 15 working days;
• Paid sick leave per year (5 working days);
• Amazing opportunities for professional growth within a top-notch team of professionals;
• Competitive compensation commensurate with your experience and skills;
• English lessons;
• Co-working compensation;
• An excellent team with a friendly atmosphere.

Right now Snotor is looking for a Ruby developer (Middle+/Senior). We offer IT-outsourcing services all over the world and give you an opportunity to work on interesting and powerful projects.

First of all, we need good, independent specialists!

 We expect! 

• 5+ years Ruby professional experience.

• 5+ year: AWS, MySQL, Terraform (2 years), API development.

• Strong focus on user experience and creating value for users.

• You feel passionate about writing clean and user-friendly interfaces and have a keen eye for what looks good.

• We run what we build. You will keep an eye on errors, apply fixes and improve resiliency of the app by writing tests.

• Open-minded and curious to engage with and contribute to our interdisciplinary team.

• You are comfortable writing and speaking English. 

Will be plus,, if you know:

•React.js, Vue.js, Typescript.

Soft skills:

• Behavioral flexibility

• Effective communication

• Initiative

• Customer focus

• Problem solving

We offer:

• Salary according to qualifications and experience;

• Official employment;

• 21 working days of paid vacation;

• 14 days paid sick leaves;

• Work on challenging web application projects which we deliver to our

clients from all over the world (North America, Europe, Australia, Asia).

Level: Middle/Senior

Hard skills requirements (including years):

At least 4-5 years of experience

An experienced developer who knows how to work with complex projects, how to optimize requests, and knows the security aspects.

Soft skills requirements:

Self-organized, capable of making decisions on his own regarding tech and architecture.

Requirements:

At least 2-3 years experience programming in Ruby on Rails

Modern Ruby (2.7+), modern rails (5.2+)

Practical experience with RDBMS (preferably PostgreSQL)

Experience implementing APIs

Loves working in an Agile environment, Jira

Experience with source control tools — Git, Github

Experience with UNIX/Linux command line

Ability to solve problems using best practices and principles

Working closely with front-end developers

Will be a plus:

Third-party APIs integrations

TDD

DDD

Knowledge of server management (deployment, monitoring, optimizing, etc.)

Experience working in micro service architecture projects

Experience with Sidekiq

Experience with Elasticsearch

Knowledge of design patterns, basic algorithms and data structures

We offer:

Interesting project and challenging tasks

Professional & career growth

Vacation and sick leaves

Responsibilities:

Work closely together with business, design and other stakeholders of project

Write robust manageable code

Work in an agile team, participation in planning sprints, daily meetings, retrospectives, code reviews

Write unit and integration tests, bugs fixing and provide continuous integration

Use JIRA bug-tracking system, Time Tracker

Suggest ideas to improve work

Be a self-motivated and result oriented team player

About us:

Health24 is a medical information service for cloud storage, online processing and secure real-time sharing of medical information for healthcare workers and patients.

More details here — health24.ua

Responsibilities:

• Develop new product features
• Fix bugs as they arise
• Ensure Merge Requests improve test coverage by adding new unit tests
• Document explanation of developed features/fixes to Merge Requests and to corresponding tickets
• Documenting completed tickets for internal and external users
• Contribute high-quality code to the backend and frontend projects

Requirements:

• 4+ years developing software in a commercial environment
• 2+ years of Ruby Development
• Experience with Ruby frameworks and libraries
• Experience with frontend frameworks (React)
• Experience in building REST API, ideally using Grape
• Experience in building integrations with third-party APIs via REST, SOAP, XMLRPC, etc.
• Solid experience in building high-performance, reliable, and scalable services

Bonus Points:

• WMS / Logistics domain experience
• Experience with ERP systems (NetSuite, Acumatica, Dynamics F&O/BC/NAV etc.)
• Experience with Elasticsearch
• Experience with Go, AWS, Docker, GitLab CI
• Experience with PHP, Java
• Experience with .Net

Benefits We Offer:

• Stock options
• $100/month for Health & Wellness expenses
• $500/year for medical expenses
• 20 PTO days
• Top-level hardware of your choice, ownership will be passed to you

Ready to join our team? Apply now!

📍 Location: Vinnytsia, Ukraine (Office-based)
💼 Employment Type: Full-time

About Warmy.io

Warmy.io is an AI-powered email warm-up and deliverability platform helping businesses ensure their emails land in inboxes - not spam. Our solution is trusted by startups, agencies, and enterprises worldwide.

We're growing fast and looking for a Junior up to Middle Ruby on Rails Developer to join our tech team in Vinnytsia. If you're just starting your career or have limited experience but are eager to learn and grow - we’d love to hear from you.

What You’ll Do

• Work with our product and engineering team to develop and improve platform features
• Learn and grow under the mentorship of experienced developers
• Help build backend functionality using Ruby on Rails
• Participate in daily standups, planning, and code reviews
• Collaborate with designers and frontend developers
• Write clean, readable code

What We’re Looking For

• Knowledge of Ruby and/or Ruby on Rails
• Understanding of OOP principles and MVC architecture
• Familiarity with relational databases (e.g., PostgreSQL)
• Willingness to learn, grow, and work in a team
• Presence in our Vinnytsia office - this is an in-office role
• Upper-Intermediate level of English or higher (for reading docs, internal communication)

Nice to Have (But Not Required)

• Pet projects or GitHub contributions
• Basic knowledge of HTML, CSS, JavaScript
• Experience with version control (e.g., Git)
• Familiarity withSidekiq, RabbitMQ, Redis, ElasticSearch, DynamoDB and Cloud & Microservices.

What We Offer

• Full-time role in our friendly Vinnytsia office
• Experienced team ready to support and mentor you
• Competitive salary with growth potential
• 12 PTO days, 10 sick days, and recognition of public holidays
• Work on a real product used globally - not just test tasks and theory
• Opportunities to grow into a Middle-level developer and beyond

📩 Just getting started in development? This could be your launchpad.
Apply now and join the Warmy.io engineering team!

We are seeking a skilled and passionate Ruby Developer to join our team. The ideal candidate will have a strong background in Ruby development and a commitment to creating efficient, scalable, and maintainable code.

Responsibilities:

* Develop and maintain web applications using Ruby on Rails.

* Ensure the performance, quality, and responsiveness of applications.

* Identify and fix bottlenecks and bugs.

* Help maintain code quality, organization, and automation.

Qualifications:

* Proficient in Ruby, with a good knowledge of its ecosystems.

* Solid understanding of object-oriented programming.

* A knack for writing clean, readable Ruby code.

* Experience with RSpec.

* Experience with working third-party API through JSON, GraphQL, XML, and SOAP

* Experience with PostgreSQL.

* Knowledge of Docker for development and deployment.

* Familiarity with continuous integration.

* Understanding of front-end technologies, such as JavaScript, HTML5, and CSS3 (Vue.js knowledge is a plus).

Preferred Skills:

* Team-oriented: we value collaborative team players over lone heroes.

* Proactive and self-motivated.

* Curiosity and a keen interest in learning new technologies.

What We Offer:

* Competitive salary that is regularly reviewed based on your performance.

* Flexible working schedule to accommodate your lifestyle.

* 10 working days of paid vacation, with the option to take an additional 5 days at your expense.

* 5 sick days per quarter to ensure your health and wellbeing.

* A collaborative and inclusive working environment.

Шукаємо ruby розробника для роботи над цікавими проектами

- ти добре знаєш що таке Ruby on Rails і вже брав участь у кількох проектах

- пишеш красивий і зрозумілий код (або прагнеш цього)

- знаєш чим відрізняється хороший commit message від поганого

- поважаєш хороші практики і знаєш, що таке code smells

Буде плюсом

- ти вмієш писати на JavaScript

- не тільки читаєш, а й пишеш і навіть трохи говориш in english

Технології

- Rails 6/7/8

- PostgreSQL

- TDD with RSpec / Capybara

- Rest API

Команда та проекти

У нас невелика розподілена команда, яка займається розробкою проектів для малого/середнього бізнесів та стартапів. Серед наших клієнтів компанії з Австралії, Сполучених Штатів, Швеції та Хорватії.

Who we’re looking for

We’re on the lookout for a skilled and experienced Senior/Lead Backend Engineer to become a key player in our growing R&D team (250+ professionals, including developers, QA engineers, designers, DevOps, technical support, and product managers). We highly value proactive individuals who enjoy tackling complex technical challenges. If you're passionate about backend development and eager to grow professionally — we’d love to have you on board.

Tech stack

Our core technologies include Ruby on Rails (7+), PostgreSQL, Docker, AWS, and Kubernetes. We have well-established CI/CD pipelines using Jenkins, GitLab, and Bitbucket. We work in small, cross-functional teams of 7–8 people, following a Kanban process and trunk-based development.

What we expect

• Solid hands-on experience with Ruby and Rails — at least 7 years in a commercial setting.
• Strong understanding of software architecture, design patterns, and modern development methodologies.
• Proven ability to make thoughtful technical decisions and approach problems strategically.
• Experience driving code quality improvements, enforcing coding standards, and promoting best practices across the team.
• Excellent communication skills and the ability to collaborate effectively across various functions.

Examples of challenges our engineers tackle

• Implementing sharding to improve database performance and scalability.
• Building cloud-based file storage with real-time sync and collaboration features (Dropbox-style).
• Integrating with billing platforms and third-party services.
• Optimizing infrastructure to support horizontal scaling.
• Profiling and improving application and database performance.
• Managing and deploying services using Kubernetes (K8s).