Praca dla java backend engineer w Warszawa

Cognism is seeking a Senior Software Engineer to join our Integrations & Enrich team. You will build backend services for CRM integrations and enrichment workflows, enabling secure data exchange with customer platforms like Salesforce and HubSpot.You will own features end-to-end and collaborate with multiple teams to deliver reliable data experiences. Strong...

Link Group is seeking an experienced Test Automation Engineer to improve and modernise an existing test automation landscape. The role focuses on reducing test execution time, increasing release confidence, and supporting migration of test pipelines to GitHub Actions.This hands-on role requires deep knowledge of test automation at scale, collaboration with...

About StackAI StackAI is a no-code platform for designing, testing, and deploying AI workflows powered by large language models. Our visual, drag-and-drop interface lets teams connect their data to AI models and ship production applications — from chatbots to document-processing pipelines to database Q&A tools — without writing code. The role Every...

HeadHR in Warsaw is seeking a skilled Frontend Engineer to design and implement sophisticated user interfaces with React and React Native. You will collaborate with backend teams, UX/UI designers, and product owners to deliver scalable, high-quality web and mobile applications.The role requires strong knowledge of JavaScript, HTML5, CSS3, and modern state...

PwC Polska is seeking a Senior Software Engineer to design and build scalable automation tools and data collection systems, integrating with third‑party APIs and bespoke data sources. You will develop and maintain internal platforms, services, and RESTful APIs supporting intelligence analysis, publication and distribution.Join a globally distributed Threat...

A dynamic software development company in Warsaw is seeking a Senior DevOps Engineer to build and maintain cloud environments for analytics platforms. You will leverage AWS, Terraform, and Kubernetes to enhance performance and scalability while contributing to backend development using Scala and Python. The ideal candidate has over 5 years of experience in...

Our mission as a company providing IT services is to provide our clients all over the world with the best solutions. We manage to do this by analyzing the needs of our clients and matching them to the skills and aspirations of our employees. Therefore, one of our main motivations is to provide each Employee and Consultant with a satisfying experience....

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate...

We are looking for a talented Senior Full-Stack Engineer to join a team building a modern, large-scale platform that powers intelligent agreement management experiences for millions of users worldwide. Our platform is at the heart of a global SaaS product used by more than 1.7 million organizations across 180+ countries. The team develops a unified,...

About StackAI StackAI is a no-code platform for designing, testing, and deploying AI workflows powered by large language models. Our visual, drag-and-drop interface lets teams connect their data to AI models and ship production applications — from chatbots to document-processing pipelines to database Q&A tools — without writing code. The role Enterprises...

Balyasny Asset Management L.P. in Warsaw, Poland, is seeking a QA Engineer to be a part of our QA and development teams. You will develop test plans, conduct various types of testing, and help improve developer testing processes.The ideal candidate will have at least 3 years of experience in software QA, familiarity with programming languages like Python,...

Full-timeCompany DescriptionAre you passionate about building scalable Big Data solutions and optimizing high-load platforms? We are looking for a Senior Big Data Engineer to join a long-term project in the cybersecurity and AdTech domain focused on real-time risk assessment for digital advertising ecosystems.We at Sigma Software offer the opportunity to...

We are looking for an experienced and highly technical Full Stack Lead Engineer to join our team in Warsaw or Cracow. In this role, you will take ownership of the frontend architecture while maintaining a strong grip on backend processes and cloud deployments. If you are passionate about building scalable, high-performance applications, working with...

About the RoleWe are looking for an experienced Lead QA Engineer with strong VoIP and SIP stack expertise to join our Net2Phone UCaaS platform team. This role focuses primarily on manual testing, microservices/API validation, requirements testing alongside Product Owners, and establishing team-wide release guidelines. While the core day-to-day focus is...

TPConnects in Warsaw is seeking a Senior UI Engineer to shape the frontend of our cloud-native travel platform. You’ll design, build and own modern React UIs used by airlines and travel sellers worldwide.Collaborate with Product, Design and Backend teams to deliver high-performance, accessible interfaces, define frontend architecture, and help drive...

MWDN is seeking a hands-on Senior Full-Stack Software Engineer to stabilize, develop, and scale its healthcare platform. You will balance 50% frontend product engineering (patient and care-management apps) with 50% backend, cloud, and integration engineering (AWS, data interoperability, DevOps, security).You will own end-to-end functionality from UI to...

Job Title: AI EngineerJob Type: ContractLocation: RemoteOverviewIn this role, you\'ll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.ResponsibilitiesDesign, build,...

We are seeking an innovative Senior Software Engineer specializing in ML Ops for one of our clients, a globally recognized financial enterprise. This is a highly specialized role embedded within a pioneering cybersecurity initiative. You will bridge the gap between software engineering, data science, and security by developing solutions that evaluate...

Trinetix seeks a Senior AI Engineer to design and build production-grade AI applications and services using Python. You will turn business and AI use cases into reliable, scalable technical solutions, working with LLMs, backend services, APIs, and enterprise systems.You will contribute to architecture decisions, implement observability, and collaborate with...

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. WHY JOIN US If you're looking for a place to grow, make an...