Praca senior python engineer with react – Warszawa

Trinetix is hiring a Senior AI Engineer to design and build production-grade AI applications using Python. You will turn business use cases into scalable technical solutions, building backends, APIs, and workflows that incorporate LLMs and enterprise systems.You will implement evaluation frameworks, improve reliability of AI outputs, and collaborate with...

HelloFresh in Warsaw, Poland, is seeking a Senior Mobile Engineer for its HelloTech unit. You’ll help migrate a white-labeled multi-brand app from native React Native toward a scalable greenfield architecture, building robust mobile software with a strong focus on performance, tooling, and reliability.Join a team delivering core mobile platforms across iOS...

Fresha in Warsaw is seeking an AI-augmented Frontend Engineer to own and evolve the core booking and scheduling engine, delivering scalable, consumer-facing features in React + TypeScript.You will collaborate across Product, Design, Backend, and Infra, build with the Fresha Design System, write tests with Cypress/Jest, and explore AI tools to accelerate...

HelloFresh in Warsaw invites a senior React Native engineer to join HelloTech, building mobile experiences that power our global brands. You will own mobile architecture, ship features across iOS and Android, and mentor mid-level engineers in a fast-paced, AI-driven environment.This role emphasizes end-to-end ownership, high-quality testing, observability,...

Inetum Polska is hiring a Senior Fullstack Software Engineer (Java & React) to join a team building a large-scale digital commerce platform based on microservices and micro-frontends. You will work end-to-end with Java 25, Spring Boot 4, Spring WebFlux, React, TypeScript and Kubernetes, delivering new features, integrating backend services and modernizing...

Role OverviewAs a Senior Software Engineer you will be responsible for building and supporting high-performance microservices and APIs that provide secure access to enterprise operational data. Working within a cloud-native architecture, you will develop containerised services using Spring Boot and Python, enabling real-time integration between business...

We are looking for a Senior Security Software Engineer to implement the baseline Cedar policy library and policy authoring standard for our Enterprise Agent Development Platform. This production-grade cloud-native ecosystem enables engineering teams to define orchestrate deploy and observe AI agents at scale using LangGraph and Strands Agents on AWS...

Fliff is the arena for high-upside play. We are dismantling the paywalls of legacy sportsbooks and reimagining the economics of social games to pioneer the next generation of rewards-driven entertainment spanning sports, casino, predictions, collectibles, and beyond. Powered by a frictionless freemium architecture, Fliff democratizes access and gives...

EPAM Systems is seeking a Senior Python Engineer to build scalable cloud-native solutions. You will create, enhance, and implement Python-based software for web apps, APIs, and data pipelines, leveraging AWS/Azure/GCP.You will design cloud architectures, develop microservices, and ensure robust CI/CD and testing practices. The role requires 5+ years of...

PwC Poland ищет специалиста по разработке AI‑решений с опытом в Python и GenAI для проектирования и реализации приложений, архитектурных компонентов и интеграции данных. Вы будете работать в гибридном...

Box Poland is seeking a skilled Software Engineer to contribute to the Content Creation team, building frontend in React.js with Node.js/TypeScript backend services and real-time APIs. You will work on scalable, secure software, tackle complex problems, and collaborate with cross-functional teams in a fast-moving AI-driven environment.You will participate in...

A luxury watch company is seeking a Senior Front End Engineer in Warsaw to develop user-facing applications for a modern eCommerce platform. The ideal candidate excels in React and Next.js, works collaboratively with teams, and follows industry best practices in coding standards. This role is positioned in a vibrant team environment and offers competitive...

Scalo w Warszawie poszukuje specjalisty Python do pracy przy projektach bankowych. Zakres obejmuje projektowanie, rozwój, testowanie i utrzymanie backendów oraz narzędzi analitycznych i rozwiązań data-processing w Pythonie.Wymagane minimum 6 lat doświadczenia, doświadczenie z FastAPI, chmurą, mikro-usługami, DDD, Linux, Git, Gerrit, Jenkins, Jira i...

O nasDigital Forms pomaga firmom rosnąć poprzez transformację cyfrową — od optymalizacji procesów i automatyzacji po AI i rozwój oprogramowania na zamówienie.RolaJako Senior Back-End Engineer będziesz projektować i budować systemy wspierające transformacje klientów. Praca nad dużymi projektami SaaS i integracjami z nowoczesnymi technologiami...

Work mode - fully remote. Assignment type: B2B Start - 01.09.2026. Contract length > 10-12 months + extensions. Language - English. Industry - pharmaceutical. Recruitment process - 2 interviews with the client. Workload: Full time.This role is for a Senior Software Engineer – Knowledge Graph, responsible for maintaining data quality, integration, and...

NVIDIA Corporation in Warsaw is seeking a Senior QA SW Engineer with Networking experience to join the System Ethernet QA Team. You will test and qualify NVIDIA Ethernet Switches, design and execute tests, and contribute to automating tests with Python.The role requires a BA in CS or Electrical Engineering, 5+ years of QA/Networking, hands-on routing...

EPAM Systems, Inc. is seeking an experienced Senior React Native Developer to join our team in Poland. You will build high-quality cross-platform mobile apps, leveraging Expo/EAS for builds and submissions and implementing robust state management.You will work in a hybrid setup (3 days in office) across multiple Polish offices, collaborating with designers,...

Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored...

Tech-Projekt Sp. z o.o. poszukuje doświadczonego backend developera Python, specjalizującego się w projektowaniu obiektowym, testowaniu (pytest/unittest) i konteneryzacji w środowisku Unix/Windows. Wymagana znajomość narzędzi takich jak Docker, Git, RabbitMQ, MongoDB i frameworków ML/NLP.Preferowane doświadczenie w tworzeniu i utrzymaniu usług...

ITSG poszukuje doświadczonego specjalisty Pythona do pracy nad dużymi systemami w Warszawie. Praca może być zdalna, hybrydowa lub w biurze, z naciskiem na wysoką jakość i utrzymywalność kodu.Do zadań należą rozwijanie funkcjonalności w Pythonie, tworzenie rozproszonych systemów i zapewnienie skalowalności. Wymagane jest 7+ lat doświadczenia,...