Senior web developer jobs in Poland

 ...that bridges the gap between patients and providers to diagnose arrhythmia and reduce stroke risk. The Role We are looking for a Senior Fullstack Engineer with a heavy backend focus to build our next-generation Software as a Medical Device (SaMD) ECG diagnostics... 

 ...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...  ...test coverage. Achieving performance targets for Core Web Vitals and Shopify storefront speed. Stability and... 

 ...Honest Trailers. Fandom equips high-agency developers with an uncompromised software canvas to engineer highly interactive web elements, scale asynchronous messaging pipelines...  ..., connection-obsessed, and systems-minded Senior Full-Stack Software Engineer to join our... 

 ...and cloud primitives, commands technical mastery across modern web frameworks, and handles multi-tenant data consistency tradeoffs...  ...professional software engineering history operating as a Backend Developer, Systems Engineer, Node.js/Python Specialist, API Integration Architect... 

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...

 ...decisions, tokenization rules, API authentication, and automated fallback logic. This role demands a seasoned distributed systems developer who can deal thoughtfully with inheritance code complexity, defend error paths aggressively, and independently drive hard problems... 

About A1 There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with...

About Nethermind Nethermind is a blockchain research and software engineering company building high-performance infrastructure, security tooling, and cryptographic systems across the Ethereum ecosystem and beyond. We work closely with protocol teams, L2s, and ZK projects...

 ...automated tests, recommending process and product improvements, and developing strong feature and product knowledge. Key Responsibilities...  ...developing as a QA specialist. Practical experience in web application testing. Ability to manage multiple priorities and... 

 ...We are looking for a Senior Developer Advocate (Education focus) to: Teach a community of automation, no-code and open source builders, meeting them where they already are with practical how-tos, helping them get unstuck, and building relationships with our most active... 

 ...deterministic model behavior. Our objective is to help users complete tasks daily enjoyable with over 90%* reduced time. Role As a Senior Member of Technical Staff, Machine Learning, you are an independent owner of critical ML subsystems in production. You take... 

 ...We engineer data to life™. The Role This is a hands-on senior engineering role , not an architecture-only seat and not a support...  ...systems to enable scalable, consumer-oriented data access Develop High-Performance Pipelines Build and optimise batch and... 

 ...stand up fraud protection in a new country quickly and safely. As Affirm expands globally, FIT scales with it. We're looking for a Senior Software Engineer to join our fully remote team based in Europe. You'll collaborate closely with stakeholders across North America... 

 ...partnerships management (influencer and affiliate marketing). Sharp sales, and analytical skills, including proficiency in using sales CRMs, web data and analytic tools. High attentiveness to details combined with proactiveness. Will have to work independently as well as... 

 ...unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Specialist, Promotions Implementation Global Product Enablement is part of the Mastercard Services Operational Excellence team... 

 ...manage and analyze massive real-time datasets across both human and automated agent architectures. Why You'll Love This Role As a Senior Site Reliability Engineer at Cribl, you will join our expanding engineering team in Poland. Our SREs are involved from early... 

 ...Join Checkly as a Senior Customer Solutions Engineer and empower developers and agents to own and ensure application performance and reliability - from pull request to post-mortem! Checkly is the active reliability layer for developers and agents. We unify testing, synthetic... 

 ...governments realize their greatest potential. Title and Summary Senior Technical Product Manager, Open Finance Connectivity (Spanish...  ...Thorough understanding of APIs, Open Banking, Open Finance, developer ecosystems, and financial services is expected. Outstanding... 

 ...digital” solutions, is seeking a highly skilled and experienced Senior QA Engineer (Manual + Automation) to join our dynamic team on a...  ...to validate overall system behavior. Automation & Tools Develop and maintain automation frameworks to enhance efficiency, maintainability... 

 ...directly into client operations — delivering custom software, automation, and AI where they drive the most value. We are seeking for a Senior Data Stewards for our client from the banking sector. Job description Supported data governance, data quality, and regulatory... 

 ...The exchange team develops and maintain a cutting-edge trading platform. With a global presence across APAC, EMEA and North America, the...  ...seamless and secure trading experience for our clients. As a Senior Devops Engineer, you will be involved a number of technically challenging... 

 ...governments realize their greatest potential. Title and Summary Senior Analyst, Settlement Operations For our Treasury Center of...  ...an as needed basis. • Research special topics as assigned • Develop reports as assigned • Challenge the status quo by identifying... 

 ...engineering team is growing rapidly, and we're looking for a Senior Software Engineer specializing in Backend development. We're a...  ...your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and leading... 

 ...governments realize their greatest potential. Title and Summary Senior Research Analyst - Associate Managing Consultant Our Purpose...  ...support, with the important mission of value realization in developing insights and recommendations. This capability augments Advisors... 

 ...Summary The Wikimedia Foundation is seeking a Senior Software Engineer to join the team supporting the Wikidata Platform — the structured data backbone of Wikimedia projects and a key part of the global open knowledge ecosystem. You’ll help scale and sustain the Wikidata... 

 ...your career to new heights. Making animals’ lives better makes life better – join our team today! Job Description Your Role: Senior Accountant – Statutory Accounting COE As a Senior Accountant, you will be responsible for preparing accurate and consistent... 

 ...governments realize their greatest potential. Title and Summary Senior Business Analyst Overview This is a Senior Analyst role...  ...requirements and priorities, estimate necessary resources and develop detailed selection evaluation criteria. • Coordinate impact to... 

 ...clients across 150 countries to launch, manage, and scale their web ideas faster and easier than ever before. Built on 10 strict company...  ...a highly autonomous, analytically sharp, and growth-minded Senior On-site SEO Specialist to take absolute strategic ownership of organic... 

 ...with their assets. Our stack is React on web and React Native on mobile, and we ship fast...  ...it. We're looking for a world-class Senior Frontend Engineer to join our product-minded...  ...next. The opportunity Design, develop, and maintain high-quality consumer-facing... 

 ...Position Overview We are seeking a highly technical, systems-minded Senior QA Engineer with a strong software verification background to...  ...test plans tracking the complete message lifecycle—from admin web actions through gateway APIs down to asynchronous carrier...