ruby

Sigma Software in Warszawa seeks a Principal Software Engineer with deep Ruby expertise to lead the technical direction of our platform and drive scalable systems. You will architect high-performance solutions, mentor engineers, and collaborate across teams to deliver robust features while maintaining code quality and engineering excellence.The role demands...

GitLab is seeking a Senior Backend Engineer for the Plan: Spec-Driven Development team. You will own backend work across flows, APIs, and evaluation systems, leveraging Ruby on Rails, Python, PostgreSQL, GraphQL, and the Duo Agent Platform to deliver agent-driven workflows.You’ll join a small, distributed, all-remote team driving high-visibility product...

GitLab is seeking a Senior Backend Engineer for the Plan: Spec-Driven Development team, shaping agent-driven workflows and backend systems with Rails/Python. You will own early-stage backend work across flows, APIs, and data models, collaborating with design partners to deliver high-visibility features in a remote, async-first setting.In your first year, you...

EPAM Systems is seeking a Senior Ruby Developer to join our dynamic team in a hybrid role with visits to offices across major Polish cities. You will develop and maintain scalable Ruby on Rails applications, optimize PostgreSQL queries, and drive quality through RSpec-based testing.Collaboration with product owners and mentoring juniors are key parts of the...

A leading beauty and wellness platform is looking for a Backend Engineer in Warsaw. The ideal candidate will collaborate within a cross-functional team to develop features using Ruby, Elixir, and Kafka in a hybrid environment. Candidates with 2+ years in product engineering who thrive in dynamic settings are encouraged to apply. This role offers significant...

EPAM Systems in Poland seeks a Lead Ruby Developer to join a collaborative team and drive web app design and delivery. You will mentor peers, design scalable solutions with Rails, PostgreSQL, and modern data strategies, and ensure quality through testing and CI/CD.The role balances hands-on coding with leadership, enabling career growth within a hybrid setup...

About the product AndonCloud is a SaaS system for factories that combines Andon, MES, CMMS, HMI, and BI functionality. It enables real-time production monitoring, as well as management of orders, workstations, machine statuses, KPIs, and reports. About us We are building our own product — we are not a software house. We are a small team with a short path...

stermedia, located in Wrocław, Poland, is seeking a backend developer proficient in Ruby on Rails to join their product team. The role involves developing the business logic, GraphQL API, and maintaining product stability while working remotely with flexible hours. Candidates should be proactive, eager to learn, and curious about system interactions. A good...

MWDN is seeking an experienced DevOps/SRE engineer to join our global outstaffing team. You will design, build, and maintain scalable cloud infrastructure on AWS and GCP, collaborate with a small R&D group, and improve CI/CD pipelines for faster, safer deployments.You should have 4+ years in DevOps or SRE, hands-on with Terraform or CloudFormation, Docker,...

GitLab Inc. is seeking a Senior Backend Engineer in Poland to join the Plan: Spec-Driven Development team and help build the intent-to-code loop—from stated intent to refined work item, plan, and mergeable code.You will own early-stage backend work across flows, APIs, data models, and evaluation systems using Ruby on Rails, Python, PostgreSQL, GraphQL, and...

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure...

About the product AndonCloud is a SaaS system for factories that combines Andon, MES, CMMS, HMI, and BI functionality. It enables real-time production monitoring, as well as management of orders, workstations, machine statuses, KPIs, and reports. About us We are building our own product — we are not a software house. We are a small team with a short path...

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure...

Coupa is seeking a talented Software Engineer to join our Platform Team in Kraków. This role involves designing and developing cutting-edge software solutions that help enhance our industry-leading SaaS platform. Candidates should have 4-5 years of experience with Ruby or Go and demonstrate expertise in building scalable services.You will also work...

Senior Full Stack Engineer - Ruby on RailsWe are recruiting an experienced full stack engineer to help drive our impact across our growing customer base in Physitrack and Champion Health.• Job Type: Fully remote. Occasional travel to build relationships with the team.• Hours: Full-Time.• Base Salary: €5-7k per month, B2B contract• Location:...

🔥 We are looking for a Mid Backend Developer (Python/RoR) — B2B Cooperation 🔥 Project focus: computational models for solar panel performance & energy optimization At MindPal, we build intelligent, production-ready systems used across the energy, education, and HR-tech sectors. Our team in Gliwice works on products that directly influence business...

We're building a network of LLM Engineers who can design, build, and integrate practical AI features into existing products. We're looking for people to collaborate with on a freelance basis - part-time or full-time, depending on project needs. This role is focused on delivery, not ML research. What matters most is your engineering foundation and your...

DescriptionWe're building a network of LLM Engineers who can design, build, and integrate practical AI features into existing products. We're looking for people to collaborate with on a freelance basis - part-time or full-time, depending on project needs.This role is focused on delivery, not ML research. What matters most is your engineering foundation and...

A leading solar technology company in Warsaw is seeking a Senior Software Engineer to enhance their solar design and sales platform. The ideal candidate will have over 5 years of software engineering experience, preferably with Ruby on Rails, and possess strong communication and collaboration skills. This hybrid role requires engagement in building scalable...

Sensor Tower is seeking a DevOps engineer in Kraków to own and optimize the CI/CD stack, collaborate with engineers, and ensure reliable, observable build pipelines. The role emphasizes performance, tooling, and close alignment with product development.You will work with Linux, Ruby, Python or Javascript, and AWS services, plus containerization with...