Jobs Ukraine, Ruby

We are looking for an expert in Ruby and Python development—the One with a desire to grow, who can’t live without constant improvements and learning. We need an Engineer with excellent communication skills and a strong organizational mindset.

About you in a couple of rows:

• Strong software design mentality — you care about the "why" as much as the "how."
• Expert in Ruby and Python — you are comfortable switching between stacks.
• API Expert — you have extensive experience creating, consuming, and refactoring web services and APIs.
• Great Communicator — you have a good level of English and are comfortable with frequent communication with third-party services and partners.
• Database Proficient — expert in relational databases, particularly PostgreSQL.

• Clean Code Advocate — you understand the necessity of creating maintainable code and are comfortable with self-code-reviewing and refactoring.

   

Would be a plus if:

• Proactive approach — we love working with people who come forward and propose their own ideas.

• Infrastructure curious — you are not afraid of new technologies or diving into complex service integrations.
  
  Innocode AS is a Scandinavian and Ukrainian-owned software development company, with a total of 60 people.

  We have several teams working on delivering solutions for Scandinavian companies, using Ruby, JavaScript, Python, iOS, Android, and Elixir.
  
   

  What’s our company and working culture?
  It’s simple — common sense is our religion.
  If you want to create value — you start with “Why”, right? And are not afraid to initiate improvements. You take responsibility to make the change happen. That’s what we try to do every day. “Always improve yourself” is our mantra and we hope you share the same approach.

Backend Developer (Ruby on Rails, APIs) - Mid-Level

We’re hiring a mid-level Backend Developer (Ruby on Rails) to join our on-site (preferred) team in Kyiv. You’ll work on U.S.based products, building and scaling API-driven backend services, and collaborating closely with experienced engineers and product teams.

⚠️ Important

• Full-time On-site / Hybrid remote. 

What You’ll Do

• Build and maintain RESTful APIs using Ruby on Rails
• Implement business logic, authentication, and third-party integrations
• Design and optimize relational database schemas and queries (PostgreSQL / MySQL)
• Collaborate with frontend, mobile, and product teams
• Write clean, maintainable, well-tested code following Rails best practices
• Create and maintain unit and integration tests
• Work with CI/CD pipelines and automated testing
• Participate in code reviews and iterative delivery

What We’re Looking For

• Agentic Development Understanding.
• 3+ years of commercial experience with Ruby on Rails
• Hands-on experience building API-first applications
• Solid understanding of REST, JSON, JWT authentication
• Strong knowledge of ActiveRecord and relational databases (Postgres or MySQL)
• Experience with RSpec (unit, request, integration tests)
• Comfortable with Git workflows and Agile teams
• Practical experience using Postman, Swagger, or similar API tools
• Familiarity with background jobs (Sidekiq / ActiveJob)
• Pragmatic mindset — focus on shipping value, not over-engineering
• Willingness to learn and improve with team support

Nice to Have

• Experience with service-oriented architectures or microservices
• Exposure to API performance optimization and caching
• Familiarity with Docker (Kubernetes is a plus)
• Interest in or basic exposure to Go / Golang

What You’ll Get

• On-site  team with strong engineering culture
• Free on-site parking
• Daily  lunches, snacks, drinks
• Performance-based bonuses
• Work on real, high-impact U.S. products
• Clear growth path as the product and team scale

Cropwise Operations is a global leader in digital agritech solutions, operating in over 50 countries and helping optimize business processes and improve the efficiency of agronomic decision-making.  

We are looking for a skilled Ruby on Rails Developer to join our team.

What we expect from a candidate:

- Preferably 3+ years of Ruby on Rails development experience.

- Strong knowledge of Rails.

- Experience with testing frameworks like RSpec and Capybara.

- Testing with RSpec/Capybara.

- Basic knowledge of ES6 + React.js.

- Experience with JavaScript.

- Standard Rails application deployment stack (Git, CI, Capistrano, *nix).

- Knowledge of HTML/CSS.

What exactly will you need to work with:

- Backend on Ruby on Rails 7.0 (Ruby 3.2).

- PostgreSQL + PostGIS database (handling large geospatial datasets).

- Job processing with Resque + Redis.

- Testing on RSpec + Capybara + CI.

- Partially frontend on React.js (ES6, JSX).

What else can you work with?

- Algorithms for processing large amounts of geodata.

- Reception and processing of binary data (Ruby eventmachine).

- Working with RabbitMQ.

- AWS, Google Cloud, Kubernetes.

- Visualization and work with geodata on the frontend (Mapbox GL JS).

Hiring process:

- Intro call;

- Test Task;

- Final Interview;

- Offer.

The company offers:

- Opportunity to be a part of a best-in-class product that is used by thousands of companies around the world.

- Participation in complex technical tasks and challenges.

- Environment where you need to seek and implement unique engineering and technical solutions.

- Trainings and development programs.

- Flexible work formats: remote, office or hybrid.

- Health and life insurance for employees and your family members.

- 32 working days of paid annual leave and sick leave.

About Cropwise Operations

Cropwise Operations is a SaaS platform for farmers, leveraging cutting-edge technologies such as computer vision, big data, and AI to deliver actionable insights and improve agricultural outcomes.

For seekers, cooperation with Cropwise Operations is an opportunity to be part of a best-in-class product used by hundreds of companies around the world, and to deal with complex technical tasks in the field of neural networks and machine learning with the need to constantly improve their knowledge and skills, to find and implement unique engineering and technical solutions.

How you’ll be impactful:
As a Back End Engineer, you will improve our codebase, and write new features. Become a part of a successful team and bring your own perspective, experience, and knowledge to the table.
 

What You’ll Be Doing:

Develop new features and automatic tests, make sure everything is optimized correctly from code and database view.
 

What You'll Need To Be Successful in:

• +3 Years Proven work experience as a Ruby on Rails developer
• Proven work experience in software development
• Experience in Integration with popular 3rd party APIs and services
• A firm grasp of object oriented analysis and design
• Passion for writing great, simple, clean, efficient code
• Good knowledge of relational databases and SQL
• Experience with AWS or Heroku.
• Git
• Good sense of humor!
   

Perks & Benefits:

• Friendly, talented, collaborative, and entrepreneurial team
• Work in the international company
• Generous holiday and PTO policies (17 days PTO, 5 sick days, 1 day for Birthday)
• Competitive compensation in USD
• Summer Fridays 
• Training and development opportunities and allowance
• Fun and inclusive digital, and in-person events
• Hybrid working model 2 days from the office in Uzhhorod, 3 days working from home

Requirements:

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

Modern Ruby (3+), modern rails (7+)

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

We are a team of Lean Startup professionals for whom entrepreneurship and startup culture are not just a job, but a way of life.We are not just “to beat around the bush” ones who aim to fulfil all of the customer’s requests by adding more features to the project while “wasting the client’s budget”. We prefer to leave that to the classic outsourcing companies!
Our rich experience, enriched by hands-on work with startups and the application of the Lean Startup approach, is the key to our outstanding efficiency. Being on the market for 3 years, we have launched over 70 successful startups from scratch, working with clients around the world.

💡 We Create Startups for Clients from Different Countries
We specialise in helping entrepreneurs and startups from America/Europe launch successful digital startup at early stages. Our goal is not just to launch, but also to assist with the full understanding of the real market demand for the product, thereby saving years of work and significant budgets of our clients.

👥 A Team of Over 40 Experts
Our team consists of more than 40 specialists, each fully immersed in projects and ready to offer the best solutions at every stage of product development.

🚀 Our Advantages:

• Technological and Process Innovation. We actively integrate the latest technologies into our work and constantly update and automate our processes to avoid bureaucracy and accelerate results.
• Individual Approach to Projects. We are not just task executors; we strive to understand the unique needs of each project and realise them based on our expertise and innovative approaches.
• Strong Team Culture. Our team is distinguished by a high level of mutual assistance and support, openness to feedback, and an absence of toxicity, which contributes to a favourable environment for the growth and development of both projects and the personal development of each employee.

• 1+ years of experience developing using Ruby and RubyOnRails;
• Writing RSpec unit tests;
• Hands-on experience with Service Objects;
• Integrated 5+ external APIs;
• Experience with payment integration (preferably Stripe);
• Strong SQL skills: joins, indexes, raw SQL (not only ActiveRecord);
• Used monitoring/logging tools: Datadog, New Relic, etc;
• An advantage would be: experience working with AWS services (Elastic Beanstalk, ECS, EC2, LoadBalancer);
• Upper-intermediate level of English.

• Experience with any of the major cloud providers (AWS, Google Cloud, Digital Ocean etc), using their services and setting up the app deployment processes there;
• Have used Sidekiq/Resque/SuckerPunch and Redis before, have practical skills of setting them up and using them;
• Experience using Docker, Docker Compose, and working in a containerized environment.

• Design, develop, and maintain reliable systems in Ruby and Ruby on Rails;
• Identify bottlenecks and bugs, find solutions to these problems;
• Maintain code quality, organization, and automation;
• Develop new system features, optimize existing ones, and maintain our existing applications;
• Collaborate with product, design, and other developers on discussing and developing new features;
• Perform code reviews and provide constructive feedback.

• Fully Remote Work with a Flexible Schedule: Enjoy the freedom to work from anywhere in the world with a schedule that suits you.
• 4-Day Work Week (Mon-Thu): Enjoy a flexible schedule with a four-day workweek, giving you more time for learning, rest, and personal growth.
• Public Holidays Off: Enjoy all national holidays as designated days off for rest and rejuvenation.
• 16 Days of Vacation: Take advantage of 16 days of annual leave to relax and recharge.
• Additional Personal Event Days Off: Enjoy extra days off for personal events to celebrate and take care of what matters most.
• Unlimited Sick Leave: Health comes first. Benefit from unlimited sick leave to ensure you have the time to recover without worry.
• Personal Technology Purchase Program: Get support in purchasing tech gadgets for personal use, keeping you up-to-date with the latest technology.
• Internal Currency for Additional Perks: Earn our internal currency and exchange it for delightful perks like company merchandise, sweets, and certificates for various activities.
• Online Team Building Activities: Engage in fun and interactive online team-building activities, fostering collaboration and strengthening our remote work community.
• Sabbatical Leave: Take a break to recharge or pursue personal projects with our sabbatical leave option.
• Full Entrepreneurial Support: Receive complete support for your entrepreneurial status, including accounting assistance.