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Senior Fullstack Developer (Java+Angular or React)
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Offer summary

(Summary generated by AI based on the full job description)

The project focuses on modernizing an educational platform specialized in language learning systems. The tech stack includes Java, Spring Framework, CI/CD, trunk-based development, and cloud solutions like AWS/Azure. Key responsibilities involve modernizing backend services, breaking down monoliths, improving stability, and API design. Required are independence, strong focus on quality and automated testing, and experience with AI-assisted development tools.

new

Senior Fullstack Developer (Java+Angular or React)

Company: Transition Technologies MS S.A.

from: 10 June 2026
to: 25 July 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid
Warszawa, Wola
Warszawa, WolaChmielna 69View on map

Requirements

Expected technologies

AWS

Our requirements

  • Proven experience as a Senior Software Engineer on backend or platform systems.
  • Strong expertise in Java and modern backend development practices.
  • Experience with Spring Framework or other similar.
  • Comfortable using AI‑assisted development tools (e.g. Copilot, Cursor or equivalent).
  • Hands‑on experience modernizing legacy systems or monoliths.
    • Practical experience with:
  • Trunk‑based development.
  • CI/CD pipelines.
  • Automated testing strategies.
  • Solid understanding of cloud‑based architectures (AWS and/or Azure).
  • Experience designing APIs and service‑to‑service communication.
  • Ability to operate independently and deliver results in a contractor model.
    • What We Value in This Role:
  • Strong ownership and accountability for engineering outcomes.
  • Pragmatic approach to modernization (incremental, safe, value‑driven).
  • Clear technical reasoning and decision‑making.
  • Quality‑first mindset with a strong bias toward delivery.
    • Optional
  • Experience working on large‑scale, long‑lived enterprise platforms.
  • Exposure to observability or reliability engineering practices.
  • Front‑end experience (React or similar).
  • Experience in education or learning platforms.

    • Your responsibilities

    Platform & Modernization:
  • Drive modernization of existing services (refactoring, decomposition, and technical debt reduction).
  • Support decoupling of monolithic components into well‑defined, scalable services Improve -
    • maintainability, resilience, and observability of core platform components.
  • Contribute to architectural improvements aligned with long‑term platform strategy.
    • Software Engineering:
  • Design, implement, and evolve backend services using modern engineering practices.
  • Write high‑quality, well‑tested, production‑ready code.
  • Actively participate in technical design and decision‑making.
  • Review code and contribute to shared engineering standards.
    • Quality & Reliability:
  • Promote strong automated testing practices (unit, integration).
  • Ensure production readiness, including operability, monitoring, and logging
  • Participate in incident analysis and drive follow‑up technical improvements when required

    • About the project

    We are looking for an experienced Senior Software Engineer to focus on platform modernization, decoupling initiatives, and engineering excellence within core English
    Language Learning systems.
    This role is hands‑on and delivery‑driven. You will work on critical, long‑lived services, supporting modernization efforts while ensuring stability, scalability, and quality of core
    platforms.The expectation is strong technical ownership, independent execution, and the ability to drive complex engineering work within an established product landscape.
    We reserve the right to contact the selected candidates.
    Company

    What we offer

    • Participation in interesting and demanding projects.
    • Flexible working hours.
    • A great, non-corporate atmosphere.
    • Possibility to work remote or hybrid (2 days per week from the office).
    • Opportunities for development and promotion.
    • Attractive package of benefits.

    Benefits

    • sharing the costs of sports activities
    • private medical care
    • sharing the costs of foreign language classes
    • sharing the costs of professional training & courses
    • life insurance
    • flexible working time
    • fruits
    • integration events
    • no dress code
    • extra social benefits

    Transition Technologies MS S.A.

    Transition Technologies MS S.A.("TTMS") to szybko rosnący dostawca nowoczesnego outsourcingu IT w Polsce i zagranicą. TTMS jest częścią Grupy Transition Technologies, jednej z największych firm branży IT w Polsce, dzięki czemu jesteśmy stabilni i elastyczni. Zatrudniamy ponad 600 specjalistów. Realizujemy nietypowe, kompleksowe i nieszablonowe projekty dla wielu branż. Oferujemy elastyczne modele współpracy i całościową obsługę projektów dzięki zespołom specjalistów z wielu dziedzin. Stawiamy na ekologię i nieustannie zmniejszamy ślad węglowy, minimalizując jego negatywny wpływ na środowisko.
    Dołączając do TTMS, trafiasz do organizacji, która stawia na rozwój, nowoczesne technologie i odpowiedzialne podejście do biznesu. Realizujemy złożone projekty dla klientów z różnych branż, a nasze zespoły wspierają ich także w obszarach AI, low-code i analityki danych.

    This is how we work

    Senior Fullstack Developer (Java+Angular or React)
    I apply to:
    Transition Technologies MS S.A.
    Warszawa, Wola
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