Jobs

About the Project

A US-based small family business offers catering services to Californian schools. We have been acting as a technology partner for this company for almost 2 decades. The customer utilises a bespoke web-based platform to run their day-to-day operations (including meal ordering, fulfilment and delivery).

Required Skills

• minimum 4 years of experience;
  experience with RoR based web services;
• experience with integration with front-end frameworks (preferably React);
• experience with Java or C#/C++ stack is a huge plus;
• ability to methodically improve legacy systems, bringing them to perfection;
• ability to communicate with the clients directly;
• English level — Intermediate+ for verbal communication and correspondence with our clients.

Responsibilities

This is a perfect opportunity for a confident and independent thinker with strong expertise in the Ruby on Rails stack. Within this role the new member will be responsible for:

• dependencies and improving the overall architecture of the platform;
• analysis and technical decomposition of tasks;
• estimation and planning;
• new features implementation;
• collaboration and knowledge sharing with the team members.

What We Offer

• opportunities to work on diverse tasks, deepening your experience quickly;
• remote work with a high degree of involvement in teamwork;
• a contract-based employment (B2B);
• support from colleagues;
• technical support and assistance provided by our internal IT services department.

Expectations

We are looking for a strong middle or senior specialist to take the lead on this project. This is what is expected from the successful candidate on this position:

• a minimum of 1 year of commitment; 
• full-time work;
• synced schedule with a team;

participation in regular meetings: daily sync-ups, planning sessions, code review.
 

Recruitment Stages:

• Application registration via google form
• Technical quiz
• Technical interview
• Interview with PM of relevant project
• Offer

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

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Full stack Ruby on Rails developer.

Requirements:

• 3+ years of experience with Ruby on Rails;

• Experience with TypeScript for Frontend and Backend;

• Express Next or Angular;

• Knowledge of OOP, AWS, Git, available to use SHH connections, understanding of Docker or Vagrant concept;

• Upper-Intermediate level of English;

• 5-6 hours of overlap with Chicago time zone.

Responsibilities:

• Write and maintain efficient, reusable, clean, and tested code;

What the company offers:

• Constant and interesting work with foreign clients;

• Flexible working hours;

• Annual paid 30 days vacation and 10 paid sick day;

• Medical insurance policy;

• 50% cost compensation of sports and English lessons.

We are looking for a Strong Middle Ruby Developer to join the development of a product that truly helps people and businesses save energy and money. You will work in a startup environment with high autonomy and the opportunity to influence the product.

Requirements

 • Experience with Ruby on Rails - 3-5 years of experience

 • Python skills for data processing and integration

 • Interest in data visualization (Grafana / Kibana / Metabase)

 • Self-motivated, product-oriented

 • Upper intermediate English

Will be a plus
• Experience with Hotwire is a plus

Key Responsibilities

 • Develop web applications on Ruby on Rails - infrastructure development, new features, testing.

 • Process and integrate data using Python / FastAPI - integration, cleaning, automation) Backend interfacing with a versioned Python microservice (FastAPI).

 • Create and configure Grafana dashboards - view creation, alerting, indicators.

 • Document code, implement CI/CD, participate in code reviews and QA 

 • Mobile development using Hotwire for iOS and Android

Project Description

An innovative startup in the field of smart energy management. The platform enables users and businesses to reduce peak electricity consumption and earn financial rewards. Technically, the project includes a web platform on Ruby on Rails, microservices on Python / FastAPI, and mobile applications via Hotwire.

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Full stack Ruby on Rails developer.

Requirements:

• 3+ years of experience with Ruby on Rails;

• Experience with TypeScript for Frontend and Backend;

• Express Next or Angular;

• Knowledge of OOP, AWS, Git, available to use SHH connections, understanding of Docker or Vagrant concept;

• Upper-Intermediate level of English;

• 5-6 hours of overlap with Chicago time zone.

Responsibilities:

• Write and maintain efficient, reusable, clean, and tested code;

What the company offers:

• Constant and interesting work with foreign clients;

• Flexible working hours;

• Annual paid 30 days vacation and 10 paid sick day;

• Medical insurance policy;

• 50% cost compensation of sports and English lessons.

We’re looking for a Full Stack Developer who is excited about working at the intersection of software engineering and AI-assisted coding.
You’ll collaborate with AI tools like Claude Code, Cursor, and GitHub Copilot to accelerate development while ensuring the codebase meets top standards of quality, scalability, and performance.

This is an opportunity to work on an AI-native platform, where human expertise and machine intelligence come together to build the next generation of engineering workflows.

Responsibilities

• Review, improve, and implement AI-generated code for production readiness
• Develop and maintain full-stack features using Ruby on Rails and Vue.js / React
• Ensure high-performance, maintainable, and scalable architecture
• Collaborate closely with AI systems to validate and refine code suggestions
• Optimize data models and queries (PostgreSQL)

• Contribute to continuous integration, testing, and deployment pipelinesʼ

   

Requirements

• 4+ years of professional software engineering experience
• 3+ years of hands-on experience with Ruby on Rails (backend)
• 2+ years with Vue.js and/or React (frontend)
• Strong knowledge of TypeScript, JavaScript, and modern development tooling
• Solid understanding of database design and performance tuning (PostgreSQL)
• Proven experience using AI coding tools (Cursor, Claude Code, Copilot, etc.) in daily work
• Proactive, self-driven, and adaptable to fast-evolving AI workflows

Nice to Have

• Experience with AWS services (Elastic Beanstalk, S3, CloudFront, Docker)
• Familiarity with frontend test automation (Cypress, Selenium)
• Understanding of MySQL / relational databases
• Degree in Computer Science or related field

Working Setup

• Fully remote within European time zones
• Long-term contract
• Collaborative, innovation-driven team environment

We’re looking for a Senior Back-end Developer to design and implement reliable, scalable, high-performance systems and collaborate closely with our engineering teams to deliver robust solutions that drive real impact.

At the heart of what we do is a simple mission: to deliver an asymmetric advantage to our AdTech Сustomers through deep expertise, simplicity, and exceptional service. We challenge ourselves to grow – as technologists, professionals, and teammates who support one another every step of the way.

Our culture is built on dedication, trust, and continuous improvement. We celebrate success together, learn from our failures, and take pride in delivering outstanding results for our clients.

If this sounds like the kind of environment where you’d thrive – join us and help build what’s next.

    Customer

Our Customer provides a novel approach to office meals. Through their platform, customers get automated and organized lunches, serving individual and customizable meals to offices from restaurants. They offer their customers a competitive advantage through their extensive industry knowledge, straightforward process, and a high level of service.

The Customer is extremely open to the team’s professional opinion, so you will have a chance to initiate changes and improve the existing solution.

     Requirements

• Experience with Ruby on Rails (Back-end)
• 5+ years of solid software engineering experience
• Experience designing and implementing scalable, cloud-based architectures for production-grade Back-end (preferably, have experience with AWS, EC2 load balancing, auto-scaling, CloudWatch, and Aurora)
• Experience with database engineering, including SQL/GraphQL with million-size relational records (preferably, the ability to write and optimize PostgreSQL and GraphQL)
• Ability to design relational schemas appropriate for given use cases
• In-depth understanding of the fundamentals of web technologies, data structures, and algorithms

• Upper-Intermediate level of English

   

     Will be a plus:

• Strong development skills in languages such as JavaScript, Ruby, and Python, preferably with a solid background in modern web stacks)

• Experience operating relational databases at scale

  
  Personal Profile

• Great communication skills, including written and verbal communication
• Strong time management and prioritization skills, with the ability to work independently
• Demonstrated sense of ownership and accountability in delivering high-quality results

     Responsibilities

• Design and implement solid, scalable, and flexible Back-end systems
• Collaborate with Front-end engineers and QAs to deliver new features together with team members on the client side
• Maintain a healthy Back-end services and a high level of quality
• Design and implement unit tests and highly maintainable code
• Generate great new ideas for features and better ways to implement existing ones
• Take an active part in team meetings and ceremonies

About the Role

We’re looking for an experienced Senior Back-End Engineer (Ruby on Rails) who combines deep technical skill with strong product awareness and collaboration. You’ll work on complex, business-critical applications in healthcare, fintech, logistics, and intelligent infrastructure domains — architecting APIs, shaping data models, and helping teams deliver robust, high-performance systems.

You’ll be joining small, empowered, cross-functional teams that include Product Managers, Designers, QA, Front-End, and DevOps engineers. This isn’t a staff-augmentation role — our engineers are trusted collaborators who co-own architecture, technical quality, and delivery outcomes.
 

Why Altus Nova is Different

At Altus Nova, engineers aren’t just implementers. They are product-minded problem solvers who ask great questions, care about maintainability, and value iteration over perfection.
Our work is guided by a few simple principles:

• Product-Minded Engineering — Understanding business goals makes better code.
• Iterative Delivery — We deliver in meaningful increments, not monoliths.
• Research Spikes — When something is unclear, we experiment before committing.
• Every Voice Counts — We debate vigorously, then execute together.
• Shared Responsibility for Production — Reliability and supportability are everyone’s concern.
   

What You’ll Do

• Design, build, and maintain scalable back-end systems using Ruby on Rails (with potential services in Node, Go, or Python where relevant).
• Build and document APIs consumed by internal and external applications.
• Improve performance, scalability, and reliability of core services.
• Collaborate with product managers and front-end engineers to translate requirements into deliverable technical designs.
• Review pull requests, mentor teammates, and help shape coding standards.
• Contribute to CI/CD pipelines, monitoring, and alerting (in collaboration with DevOps).
• Participate in design discussions, retrospectives, and release planning.
• Continuously improve our architecture — from database design to caching and background jobs.
   

What We’re Looking For

• 5+ years of professional development experience (at least 3 with Ruby on Rails).
• Strong grasp of Object-Oriented Design, SOLID principles, and service-oriented architecture.
• Experience designing and optimizing RESTful or GraphQL APIs.
• Deep understanding of SQL (PostgreSQL preferred), indexing, and query optimization.
• Familiarity with Sidekiq/Resque, Redis, background jobs, and message queues.
• Experience with cloud-native environments (AWS or GCP) and CI/CD pipelines.
• Experience with RSpec, Minitest, or similar frameworks.
• Familiarity with Docker, Kubernetes, or container-based environments.
• Strong communication skills — able to explain trade-offs and simplify complexity.

A mindset of continuous learning and collaborative problem solving.
 

Why You’ll Love Working Here

• Work with top-tier product teams that expect your input, not just your output.
• Build modern, high-scale systems with a strong emphasis on maintainability and observability.
• Collaborate with highly skilled peers across multiple disciplines.
• 100% remote — flexible hours and a culture of accountability, not micromanagement.
   

Opportunity to move into Tech Lead or Solution Architect roles as you grow.

We are seeking an experienced Ruby on Rails Developer to join our engineering team on a part-time basis. You’ll work on innovative digital products and solutions, contributing to scalable backend systems and collaborating with our team to deliver high-quality software that drives business results.

Details

• Location: Remote from Georgia, Armenia, Azerbaijan 
• Employment Type: Part-Time (Approx. 20 hours/week)
• Project Duration: 6 months
• Start Date: ASAP
• Language Requirements: English — Upper-Intermediate or higher

Key Responsibilities

• Develop and maintain backend systems and APIs using Ruby on Rails.
• Collaborate with frontend developers, designers, and product managers to define and implement new features.
• Ensure high performance, scalability, and reliability of applications.
• Participate in code reviews and continuous improvement of development practices.
• Troubleshoot and resolve issues across the stack.

Requirements

• 3+ years of experience with Ruby on Rails development.
• Strong understanding of MVC architecture and RESTful API design.
• Experience with relational databases (e.g., PostgreSQL, MySQL).
• Familiarity with Git and modern development workflows.
• Good communication skills and ability to work independently in a remote team environment.

Nice to Have

• Experience with JavaScript frameworks such as React or Vue.js.
• Familiarity with Docker or CI/CD pipelines.
• Experience in working within Agile/Scrum teams.

N-iX is looking for a Front-End or Full-Stack Ruby on Rails Engineer to join the team.

Our client is a leading global provider of 3D models designed for films, games, commercials, architecture, and more. You will be working on exciting and complex problems for the industry-leading 3D content website with millions of customers. Your work will be immediately impactful to our large professional and enterprise customer base. The team’s approach is to provide mentorship and peer reviews while bringing you up to speed on our codebase and business.

Key responsibilities:
- Incrementally improve the product experience using a data-driven approach
- Provide direct input to drive the architectural and product direction of 3D projects

Desired Qualifications:
- Strong experience with Ruby on Rails
- Experience with javascript/typescript
- Experience with relational databases like PostgreSQL or MySQL
- Source Control: Git (Github)
- Self-motivated and proactive; able to work independently and collaboratively as part of a team, and take creative feedback constructively
- Automated testing and unit testing
- Upper-intermediate English level

Would be a plus:
- Experience with OpenSearch/ElasticSearch
- Stimulus and Turbo
- JSON:API and GraphQL
- Tailwind
- Experience with AWS
- Previous exposure to Docker, Kubernetes
- Experience building event-driven or message-driven architecture using tools like RabbitMQ and Kafka

You will be responsible for designing, developing, and maintaining internal tools and platforms that power our operations, analytics, and AI-assisted workflows. This is a hands-on engineering role with significant autonomy, direct impact, and the ability to work in dynamic product-led environment.

The ideal candidate is product-oriented, pragmatic, deeply experienced with Rails, and comfortable moving fast while maintaining engineering discipline.

 

Key Responsibilities

• Build, maintain, and enhance internal Rails-based applications and microservices.
• Design clean, scalable, and secure backend architecture for new internal products.
• Develop REST/GraphQL APIs for front-end and platform integrations.
• Collaborate with product leadership to refine requirements, scope features, and deliver iterative improvements.
• Implement background jobs, automation pipelines, data processing components, and integrations with third-party APIs.
• Ensure system reliability, performance, observability, and maintainability across environments.
• Contribute to DevOps, CI/CD, and deployment improvements where relevant.
• Uphold code quality through testing, reviews, and best practices.

Required Skills & Experience

• 4+ years of professional experience with Ruby on Rails.
• Strong proficiency in PostgreSQL, ActiveRecord, and relational schema design.
• Experience building and consuming APIs (REST, GraphQL is a plus).
• Solid understanding of background processing (Sidekiq or equivalent).
• Experience with authentication, authorization, and security best practices.
• Familiarity with modern frontend stacks (React, Vue, or similar) is an advantage.
• Comfortable working in environments with evolving requirements and rapid iterations.
• Ability to take ownership of features and drive them across the entire lifecycle.

Nice-to-Have

• Knowledge of microservice architectures and event-driven patterns.
• Exposure to AI systems, LLM integrations, or automation pipelines.
• Experience with Docker, Kubernetes, AWS, or GCP.
• Understanding of product development principles and internal tooling needs.

N-iX is looking for a Full-Stack Ruby on Rails Engineer to join the team.

Our client is a leading global provider of 3D models designed for films, games, commercials, architecture, and more. You will be working on exciting and complex problems for the industry-leading 3D content website with millions of customers. Your work will be immediately impactful to our large professional and enterprise customer base.

Responsibilities:

• Incrementally improve the product experience using a data-driven approach
• Provide direct input to drive the architectural and product direction of 3D projects

Requirements:

• Advanced knowledge and experience in Ruby on Rails of at least 3 years
• Experience with Javascript/Typescript
• Experience with relational databases like PostgreSQL or MySQL
• Source Control: Git (Github)
• Automated testing and unit testing
• Upper-intermediate English level 

Nice to have:

• Experience with OpenSearch/ElasticSearch
• Experience with Stimulus and Turbo
• Experience with JSON:API and GraphQL
• Experience with Tailwind
• Experience with AWS
• Previous exposure to Docker, Kubernetes
• Experience building event-driven or message-driven architecture using tools like RabbitMQ and Kafka

Ruby Developer (Data Engineering) - ClubReady

As a Ruby Developer on our Data Engineering team at ClubReady, you'll be responsible for supporting, maintaining, and enhancing the Ruby-based ETL processes and data pipelines that power our customers' access to their ClubReady data. You'll leverage your deep SQL expertise and Ruby programming skills to ensure data replication processes are reliable, performant, and scalable. You'll collaborate closely with BI developers, DevOps, and Product teams to troubleshoot data syncs, optimize database operations, and implement enhancements to our existing data infrastructure.

Key Responsibilities

• Maintain and enhance existing Ruby-based ETL processes that replicate and transform ClubReady data into customer-facing databases.
• Write and optimize complex SQL queries across SQL Server and PostgreSQL environments for data extraction, transformation, and loading.
• Monitor and troubleshoot daily data loads, ensuring reliability and data consistency.
• Perform database performance optimization including query tuning, indexing strategies, and schema improvements.
• Collaborate with BI and Product teams to implement data set enhancements and support analytics use cases.
• Automate operational processes such as monitoring, alerting, and health checks for data syncs using Ruby scripts.
• Ensure data security and compliance in all data handling and transfer processes.
• Contribute to code documentation, pipeline design standards, and best practices.

Required Qualifications:

• 5+ years of professional Ruby development experience.
• Expert-level SQL knowledge with proven experience in SQL Server and PostgreSQL.
• Strong experience with data pipelines, ETL processes, and data transformation workflows.
• Deep understanding of database performance tuning, indexing, query optimization, and execution plans.
• Experience with data modeling, change data capture (CDC), and incremental load strategies.
• Familiarity with cloud environments (AWS or Azure).
• Strong debugging and troubleshooting skills for production data systems.

Preferred:

• Experience with data replication systems or synchronization frameworks between operational and analytics databases.
• Experience with additional languages such as Go or Python.
• Familiarity with workflow orchestration tools like Airflow or similar.
• Experience with Snowflake or other cloud data warehouses.
• Experience supporting multi-tenant or customer-facing data platforms.
• Exposure to BI tools such as Looker, Power BI, or Tableau.

🔥 Знаходимось у пошуках Ruby on Rails Developer у продуктову eCommerce-компанію з історією понад 19 років на ринку, яка входить до великого технологічного холдингу з офісами в Казахстані та Азербайджані.

🔎🏢 Основна спеціалізація - великі онлайн-маркетплейси в категоріях Real Estate, Automotive, Job Portals та General Classifieds (універсальні платформи для приватних оголошень). За концепцією продукти нагадують OLX, Auto.ria та Work.ua. Загальна аудиторія - мільйони користувачів щодня. Команда інженерів - 30+ осіб. Технічна культура - інженерна, із високими вимогами до якості коду та глибини розуміння стеку.

⚙️ Технологічний стек проєктів:
• Backend: Ruby, RoR (завжди остання версія), Redis, Elasticsearch, PostgreSQL, GraphQL;
• Frontend: React, React Native, Next.js;
• Хмарні платформи: AWS, GCP.

📜 Основні завдання:
• Розробка та підтримка платіжних інтеграцій з локальними та міжнародними провайдерами;
• Оптимізація продуктивності та масштабування існуючих рішень;
• Розв’язання нетривіальних задач на стику бізнес-логіки й технологій;
• Робота в тісній зв’язці з архітекторами, продуктовими командами та фронтендом;
• Дотримання принципів інженерного мислення: відповідальність за результат, а не лише за реалізацію.

✅ Очікування від кандидата:
• Досвід розробки на Ruby on Rails - від 7 років;
• Розуміння принципів побудови високонавантажених систем;
• Участь у розробці складних проєктів, бажано - у проектуванні архітектурних рішень;
• Досвід роботи з GraphQL - буде перевагою;
• Англійська на рівні читання технічної документації.

🧪 Процес відбору:
• Технічне інтерв’ю з архітектором компанії (формат live-coding, до 2 годин);
• Зустріч з Engineering Director;
• Офер.

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