Back-end developer jobs in Poland

 ...optimizing distributed or highly available software systems in large-scale production environments. Experience owning complex projects end to end, including technical design, execution, rollout, and operational support. Strong systems design skills and the ability to... 

 ...This means designing and implementing a scalable architecture, developing and optimizing backend services and APIs, improving the performance...  ...in hiring and onboarding new team members; taking on end-to-end project management responsibilities as we grow. What... 

 ...autonomous groups, short release cycles and ownership from problem definition through production. What you’ll do Own backend solutions end to end: understand the business problem, shape the requirements, design the solution, build it, test it, deploy it and run it in... 

 ...scale aggregations; Understanding of Machine Learning concepts and production ML integrations. Responsibilities Design, develop, and maintain high-performance backend services in Go ; Analyze and optimize distributed systems and microservice-based architectures... 

Primer is the unified infrastructure for global payments. We give finance and payments teams the visibility and control to reduce complexity, improve performance, and capture more revenue - all from a single platform. Which team will you be joining? Getting paid is ...

 ...concurrency and high-performance design . A track record of improving reliability , scalability , observability or developer effectiveness through durable mechanisms. The ability to influence technical direction through evidence, clarity and trusted execution... 

 ...Experience leading technical initiatives, mentoring engineers, or working with distributed external teams. Responsibilities Design, develop, and maintain high-performance backend services in Go ; Analyze and optimize distributed systems and microservice-based... 

 ...scale the backend systems powering the Mimica platform ( MERN stack). This means designing and implementing a scalable architecture, developing and optimizing backend services and APIs, improving the performance and reliability of existing components, and taking... 

About Spate At Spate, we use data science to predict the next big consumer trend in beauty, personal care, wellness & functional food. Spate was founded in 2018 by Yarden Horwitz & Olivier Zimmer, two ex-Googlers who led the trendspotting division at Google and uncovered...

Duties: You'll work with our Geopolitics team focused on our internal Firm GenAI initiatives. Our team is distributed across multiple locations, including offices in North America, Europe, and Japan. As a Software Engineer on the team, you will be at the forefront...

 ...grade workflows. This includes designing how agents operate, fail, recover, and deliver consistent value to users. Focus Build end-to-end product features across frontend, backend, and AI integrations Design agent workflows that handle planning, tool use, failure... 

 ...by advancing the development of software-defined vehicles. We develop safety-first, user-centric software-defined vehicle technologies...  ...of production experience with React and TypeScript, including end-to-end type safety. ~ Hands-on experience designing and evolving... 

 ...What you'll do here Design and build new features end to end, from technical design through production rollout. Design and implement...  ...systems at a meaningful scale. Curiosity about the latest developer tooling. Our tech stack Backend: Go , Postgres ,... 

 ...closely with members of the backend team and Integrations team to develop features together. Engineers at ClickUp are also responsible for...  ..., and product Architect efficient and reusable front-end code that drive the ClickUp user experience Manage individual... 

 ...user experience through curated editorial coverage and award-winning video segments like Honest Trailers. Fandom equips high-agency developers with an uncompromised software canvas to engineer highly interactive web elements, scale asynchronous messaging pipelines, and... 

 ...Observability: Prometheus , Grafana CI/CD: GitHub Actions Bonus tacos if you have Experience building coding agents, developer tools, or cloud development environments. Experience with agent tools, or multi-agent systems. Experience building abstractions... 

 ...Key Responsibilities The Front-End Engineer is responsible for building and maintaining...  ...-End Engineer collaborates closely with back-end engineers, designers, and product...  ...accessible, and scalable web experiences. Develop responsive, accessible, and performant user... 

 ...leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery...  ...your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and... 

We are hiring on behalf of our client, a growing, dynamic organization is seeking a skilled and detail-oriented Software Engineer - Backend & Data to join its team. This role will play a critical part in driving operational success, executing key initiatives, and contributing...

 ...architecture. ~ Ability to own a feature or technical project end to end and drive it independently. ~ Strong software design...  ...Kubernetes ) is an advantage. Nice to have: Experience developing high-scale SaaS products with polished, complex UIs. Eye for... 

 ...cloud provider. ~ Ability to own a module or technical project end to end and drive it independently. ~ Strong software design...  ...Kubernetes ) is a strong advantage. Nice to have: Experience developing high-scale SaaS solutions . Deep understanding of CI/CD... 

 ...grow fast with a world-class team, ARQ is the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing backend systems that power our innovative products. You’ll collaborate with a talented... 

 ...a weekly release cycle and ownership from problem definition through production. What you’ll do Own complex frontend features end to end across web and mobile. Design and evolve React and React Native systems, shared libraries and durable abstractions.... 

 ...The Role Lead a team of senior full-stack developers and coordinate technical execution across...  ...complex user interfaces Own projects end-to-end — from requirements and...  ...Health Insurance Reimbursement: We have your back—literally! Receive reimbursements to help... 

About This Role We are looking for a Senior Shopify Full Stack Developer with deep expertise in the Shopify ecosystem, a strong grasp of headless architecture, and experience leading enterprise-scale development initiatives. You'll be responsible for building scalable,... 

 ...app. This isn't a "ticket-to-deploy" role. You'll own problems end-to-end: from identifying customer needs to shipping solutions and...  ...someone told you to) ~ Strong communicator — you can push back on a bad idea and explain a technical decision to a non-technical... 

 ...direction across product teams while remaining close to the code. Your scope will include shared libraries, platform capabilities, developer tooling and difficult product-system problems. This is not a people-management role. Its leverage comes from technical... 

 ...a feature from idea through delivery. Excellent organizational and prioritization skills. Ability to work effectively with developers and other technical stakeholders. Fluent English . Benefits Diverse and technically challenging projects. Flexible working... 

 ...our work is made async, which is the secret sauce of our success. What you need ~3+ years building full-stack web applications end-to-end ~ Strong at React + Node.js. MongoDB experience is a great plus. ~ Experience building complex applications - you understand... 

Responsibilities Design, build, and maintain automated UI tests for web and mobile applications. Execute exploratory and manual testing to validate new features, edge cases, and customer journeys. Collaborate closely with frontend and mobile engineers throughout...