3,866 koder html/css frontend developer jobs in Polska.

... tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Role Overview We are seeking an experienced Senior Java Developer to provide specialist software development services focused on designing, developing, and enhancing enterprise-grade applications. The ideal candidate should ...

... marketing automation – flow, segmentacja, A/B testy, scenariusze retencyjne - Analiza danych (GA4, Hotjar, Klaviyo) i raportowanie KPI - Koordynacja zespołu (developer, grafik, agencje) i współpraca z działem sprzedaży i produktu ## Czego oczekujemy - Min. 2 lata doświadczenia w e-commerce – nie w marketingu ogólnym, ale ...

... passion for scaling security across product teams. Responsibilities - Participate in application security program, including tool selection, policy enforcement, developer engagement, and risk reporting. - Own integration of AppSec tooling into CI/CD pipelines to enable scalable, developer-friendly security controls. - Provide ...

... a reusable UI component library - Ability to track user workflows, analyze product analytics, and drive improvements using PostHog - Familiarity with microfrontend architectures and Module Federation - Building and maintaining CI/CD pipelines with GitHub Actions - Containerization and orchestration experience using Docker, ...

A software engineering company in Kraków is seeking an experienced Java Developer to work on challenging projects. The role involves architecture discussions, unit testing, and collaboration with a diverse team. Candidates should have over 5 years of Java experience, and familiarity with Spring, Hibernate, and Docker is ...

... reliability, you'll fit right in. What you’ll do - Collaborate remotely with a globally distributed team. - Write clean web service APIs to support both CLI and web frontend clients, using Python (and optionally Golang). - Design and implement new features and enhancements from spec to production and ongoing operations at scale. ...

... scale. The platform standardizes agent development across the organization using LangGraph and Strands Agents on AWS AgentCore Runtime, providing a single-file developer experience where the platform handles runtime, tooling, observability, and deployment automatically. The initiative spans agent framework design, runtime architecture, ...

We are seeking a talented Senior Copilot Developer. The role focuses on the development of Microsoft Copilot agents and enterprise integrations using Microsoft Power Platform. The position covers Copilot Studio agent development, custom connectors, advanced automation, secure enterprise system integration, governance and ...

Luxoft is building a trading platform from the ground up, delivering a front-office system for traders, pre-trade checks, and analysis. The team will handle intra-day positions, order routing, risk management, and trading activity reports with FIX connectivity and market data integrations.

Svitla Systems Inc. is seeking a Senior Python Developer for a full-time position (40 hours per week) in Europe. Our client is a health insurance company that uses advanced technology to better serve its members. We are seeking a detail-oriented Backend Specialist with strong expertise in Python, SQL, and Windows environment ...

A leading eCommerce technology firm is seeking a C# / .NET Developer in Poland. This role focuses on middleware application development, integrating Shopify with other systems. The ideal candidate has strong backend engineering skills and at least 4–5 years of experience in C# and .NET development, with a proven background ...

... tools daily, you see them as leverage, not a shortcut. Technical Requirements We build on .NET and SQL on the backend, with TypeScript, React and Vue, on the frontend. This role lives on the backend, and C# is a requirement. Frontend is a bonus, not a bar. Cloud & Infrastructure - AWS-native: ECS/Fargate, S3, least-privilege ...

... matter. This is not a role focused on implementing predefined tickets. You’ll move between understanding a product problem, designing the solution, building the frontend and backend, shipping it to production and learning from how users actually interact with it. ,[Build and maintain fullstack features across AI-powered tax ...

Opis stanowiska Poszukujemy doświadczonego Senior Java Developera, który dołączy do zespołu realizującego projekty z obszaru systemów płatniczych i integracji finansowych. Osoba na tym stanowisku będzie odpowiedzialna za projektowanie, rozwój oraz utrzymanie rozwiązań opartych o standard ISO 8583 z wykorzystaniem jPOS. ...

Business Developer wanted! If you are interested in energy market, love opening doors, and thrive on building relationships that turn into real revenue - this job is for you. You will support our business development efforts across Europe, searching for attractive leads, and closing complex B2B deals with large energy consumers. ...

... technicznej oraz projektowej. Przygotowywanie i wykonywanie testów jednostkowych, a także wsparcie procesu zapewnienia jakości oprogramowania. Praca z narzędziami developerskimi i administracyjnymi środowiska Mainframe, takimi jak ISPF, SDSF, JCL oraz z/OS Unix. Współpraca z Analitykami Biznesowymi, Architektami IT, testerami ...

... areas of financial products - Technical planning, defining the roadmap and coordinating execution - Making and reviewing architectural decisions - Mentoring developers and developing engineering standards and best practices - Designing and developing real-time financial systems - Building scalable and fault-tolerant platforms ...

... code-review experience in one or more modern programming languages, with the ability to explain security issues clearly to engineers. - Background as a software developer, or comparable hands-on experience as a builder — for example in DevOps engineering or software architecture — working with code on a daily basis. - Experience ...

... flawless mobile apps and digital solutions – and quality is at the heart of everything we do. That’s why we’re on the lookout for detail-oriented iOS Regular Developer to join our dynamic team on a flexible hourly basis, with the exciting possibility of a long-term collaboration. Your sharp eye and expertise in ensuring seamless ...

Join our team as a LGD Model Developer! Responsibilities - Development and maintenance of AIRB/IFRS9 LGD and CCF models for multiple portfolios - Group-wide methodological responsibility for quantitative credit risk models - Forward‑looking construction of a cross‑functional methodology architecture - Ensuring compliance ...