Senior Fullstack Developer (Java+React) w Warszawa, Polska
Integral Solutions
ZdalniePraca z dowolnego miejsca
HybrydowoPołączenie biura i pracy zdalnej
KontraktUmowa czasowa lub freelancing
180,00 – 250,00 zł
Warszawa, Polska
Your responsibilities
Hands on expert level fullstack development of innovative, business critical applications.
Own and lead the full engineering lifecycle: technical discovery, solution design, architecture, implementation, testing strategy, DevOps, production readiness, and continuous improvement.
Act as a technical authority for complex Java/Spring, React, microservices, cloud/hybrid, and container-based solutions.
Drive XP practices with remote pairing, TDD/BDD, continuous integration and high-quality engineering standards.
Use AI-assisted development capabilities responsibly to accelerate delivery, improve design quality, generate tests, review code, support refactoring, and enhance engineering productivity
Our requirements
8+ years of hands-on software engineering experience, including significant experience in enterprise scale systems.
4+ years of front-end development experience, mainly React, with strong knowledge of modern JavaScript / TypeScript frameworks, component design, state management, and reactive UI patterns.
Expert level Java experience, including Spring / Spring Boot / Spring Cloud, microservices, RESTful APIs, and integration-oriented architecture
BSc in Software Engineering or BS degree in Computer Science, or equivalent practical engineering experience.
Strong experience in distributed systems design, API-first architecture, service resilience, service discovery, circuit breaker patterns, scalability, observability, and performance tuning.
Strong experience with TDD/BDD and automated testing using frameworks such as JUnit, Jasmine, Mockito, Protractor/Selenium, or equivalent modern tools.
Solid DevOps mindset and hands-on experience with CI/CD, Jenkins or equivalent pipelines, automated quality gates, deployment automation, and production-readiness practices.
Experience designing, developing, and deploying cloud/hybrid
Experience with Kotlin, functional programming, Java Streams, and modern JVM ecosystem practices - strong advantage.
Ability to evaluate technology options, make architectural trade-offs, and communicate technical recommendations clearly to both engineering and management stakeholders.
Self-starter with strong ownership, ability to prioritize complex work, drive decisions, and operate effectively in a rapidly changing environment.
Excellent problem-solving skills, high engineering judgment, strong critical thinking, and ability to simplify complex technical challenges.
Good English - verbal and written.
Optional
Practical experience using AI assisted development tools such as GitHub Copilot, Microsoft Copilot, ChatGPT/OpenAI based tools, or equivalent AI engineering assistants.
Ability to use AI tools to accelerate coding, unit-test generation, refactoring, documentation, troubleshooting, API exploration, and code-review preparation.
Understanding of responsible AI usage in software engineering, including data sensitivity, security, IP awareness, validation of generated output, and human-in-the-loop review.
Experience integrating AI/LLM capabilities into applications, workflows, developer tooling, or automation processes - strong advantage.
Ability to identify practical AI use cases that improve developer productivity, reduce manual effort, and increase delivery quality without compromising security or maintainability.
What we offer
Work mode: 100% Remote
Cooperation with a unique client who provides opportunities for development in many complex and global supply chain projects.
Join a new IT Hub with new technologies and projects
... Hadoop, Spark, Apache JackRabbit, Vite, Webpack, Terraform, Prometheus, ELK Operating system, Windows This is how we work, in house, agile Your responsibilities, Fullstack development using Java and React,, Contribute to technical decision-making and architecture improvements,, Collaborate with QA, Product, and DevOps teams,, ...
Twój zakres obowiązków - implementacja nowych oraz rozwój istniejących aplikacji i serwisów - rozwój backendu w Java 17+ i Spring - rozwój funkcjonalności frontendowych w React - projektowanie i analiza rozwiązań technicznych - tworzenie testów jednostkowych i integracyjnych - integracje systemowe z wykorzystaniem REST ...
... zespołu, backend developer, frontend developer, devOps Twój zakres obowiązków, implementacja nowych oraz rozwój istniejących aplikacji i serwisów, rozwój backendu w Java 17+ i Spring, rozwój funkcjonalności frontendowych w React, projektowanie i analiza rozwiązań technicznych, tworzenie testów jednostkowych i integracyjnych, integracje ...
Fullstack Developer (Java/React) Miejsce pracy: Białystok Technologies we use Expected - Java - React - CI/CD - RESTful API - cloud-native applications - LLMs Optional - Python - AWS - Databricks Operating system - Windows - macOS About the project Grape Up is a consulting and technology company helping enterprises build ...
... klasy Enterprise oraz jego integracja z innymi systemami. - Analiza wymagań biznesowych i technicznych oraz ich implementacja. - Tworzenie i rozwój backendu w Java / Spring oraz aplikacji frontendowych w React. - Projektowanie i rozwój integracji z wykorzystaniem REST API, zdarzeń i usług integracyjnych. - Praca z Apache ...
Your responsibilities - Developing backend services using Java and Spring Boot. - Building and enhancing frontend applications in React. - Designing and implementing REST APIs. - Integrating applications with external systems. - Writing and maintaining unit and integration tests. - Participating in code reviews. - Ensuring ...
... https://jobeax.com/link/6WcBICn0LM558SP0 Optional, Postman, Playwright About the project, Ignite innovation in software development - shape the future with cutting-edge .NET and React solutions!, , As a Senior Fullstack Developer, you will be working for our client, a leading technology innovator. You’ll contribute to building sophisticated ...
... doświadczenia oraz zakresu świadczonych usług. minimum 8 lat doświadczenia komercyjnego w programowaniu w technologii .NET/C#,, praktyczne doświadczenie w roli Fullstack Developera obejmujące backend, frontend, bazy danych oraz rozwiązania chmurowe,, bardzo dobra znajomość React, TypeScript oraz nowoczesnych technologii frontendowych,, ...
... (PostgreSQL/MySQL), Integracja z systemami zewnętrznymi z użyciem REST, Współpraca z zespołem frontend, DevOps oraz QA, Code review oraz mentoring mniej doświadczonych developerów, Udział w podejmowaniu decyzji architektonicznych Minimum 5 lat doświadczenia komercyjnego w programowaniu w Java, Bardzo dobra znajomość Java Spring Boot, ...
Senior Java Fullstack Developer Miejsce pracy: Warszawa Technologies we use Expected - Java - Spring Boot - Angular - Docker - Kubernetes - Git - Bitbucket - Jenkins Operating system - Windows About the project We are Optiveum, an IT recruitment and contracting agency. Currently, we are looking for a Senior Java Fullstack ...