Aktualne oferty pracy związane z Senior Software Engineer/Tech Lead JAVA - Warszawa, Mazovia - Square One Resources Sp. z o.o.


  • Warszawa, Mazovia, Polska Jit Team Pełny etat

    Salary: PLN/MD on B2BWork model:elastic hybrid (Warsaw / Kraków / Tricity) or remote with occasional office visitsWhy choose this offer?You can expect a flexible work organizationThe international work environment will allow you to interact with the English language dailyScandinavian organizational culture will provide you with a work-life balanceThe Jit...


  • Warszawa, Mazovia, Polska Pretius Software Pełny etat

    W Pretius poszukujemy DevOps Tech Leada do pracy w zespole budującym nowe produkty IT dla dużej instytucji finansowej.Projekt / RolaProjektowanie i budowa architektury infrastrukturalnej pod nową platformę orkiestracji agentowej.Tworzenie fundamentów CI/CD, automatyzacji i standardów operacyjnych dla całego projektu.Wybór technologii, narzędzi i...

  • Lead Java Developer

    3 dni temu


    Warszawa, Mazovia, Polska NWorld Advisory, Tech & Operations Pełny etat

    Lead Java Developer | Calypso | International Project | Banking | WarsawAre you looking for your next challenge as an experienced Java Developer ready to step into a Team Lead role in a consulting team in Warsaw?Who we areWe areNWorld Advisory, Tech & Operations, an independent consulting group with over 15 years of experience. We combinestrategic...


  • Warszawa, Mazovia, Polska GR8 Tech Pełny etat

    GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It's more than just a...

  • NET Tech Lead NEW

    3 dni temu


    Warszawa, Mazovia, Polska Pretius Software Pełny etat

    At Pretius, we are looking for .Net Tech Lead to a project in the financial industry, international team.Project / RoleLead and mentor technical teams (Frontend, Backend, DevOps, QA) in digital transformation and automation projects.Design and oversee scalable, secure solutions based on .NET Core and cloud components (Azure, Kubernetes, Terraform).Implement...

  • Middle Java

    4 dni temu


    Warszawa, Mazovia, Polska GR8 Tech Pełny etat

    GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It's more than just a...

  • Java Tech Lead

    1 tydzień temu


    Warszawa, Mazovia, Polska act digital Pełny etat

    Company DescriptionOur mission as a company providing IT services is to provide our clients all over the world with the best solutions. We manage to do this by analyzing the needs of our clients and matching them to the skills and aspirations of our employees. Therefore, one of our main motivations is to provide each Employee and Consultant with a satisfying...


  • Warszawa, Mazovia, Polska GR8 Tech Pełny etat

    GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It's more than just a...


  • Warszawa, Mazovia, Polska MPower Plus Pełny etat

    Job Role: Senior Developer JavaLocation: Cracow, Poland (Occasional visits to the office in Cracow 1/2 Days in a Month)Job type – ContractJob DescriptionRequired Skills & QualificationsMust Have - Java, Groovy with ECM Knowledge4+ years of experience in software development with strong proficiency in Java and Groovy.Understanding of ECM concepts: document...


  • Warszawa, Mazovia, Polska Sigma Software Pełny etat

    Company Description Are you an experienced engineer passionate about building complex, high-performance systems? We are looking for a Senior/Principal Full Stack Engineer to join an innovative project in the autonomous vehicle domain. This role is fully remote within Europe, giving you the flexibility to work from anywhere while collaborating with a global...

Senior Software Engineer/Tech Lead JAVA

3 tygodni temu


Warszawa, Mazovia, Polska Square One Resources Sp. z o.o. Pełny etat

We are a company operating in the biotechnology and medical field, developing solutions that directly support healthcare and life sciences.

Our software stack has a long history and currently includes Java (1.6/1.8), JSP, Oracle Database, GWT, Swing, Stripes, and Tomcat.

We are now embarking on a strategic transformation to modernize our systems, migrate parts of a large monolithic application, and evolve towards a more scalable, maintainable architecture.

Senior Software Engineer/Tech Lead JAVA

Your responsibilities

  • Lead the design and execution of modernization initiatives, including:
  • Refactoring and extracting functionality from a large Java monolith.
  • Migrating legacy applications (JSP, Swing, GWT, Stripes) to modern frameworks and architectures.
  • Evaluating and introducing new technologies aligned with business needs.
  • Define the long-term technical roadmap for system upgrades, modularization, and scalability.
  • Work closely with stakeholders to understand business and regulatory requirements in the biotech/medical domain.
  • Provide hands-on technical leadership: write high-quality code, review contributions, and ensure best practices.
  • Mentor and support other engineers during the migration and modernization journey.
  • Collaborate with database experts on Oracle optimization and potential migration strategies.

Our requirements

  • 8+ years of professional software engineering experience with Java and enterprise systems.
  • Proven experience leading or significantly contributing to modernization projects (e.g., monolith-to-modular/microservices, migration to cloud, refactoring legacy systems).
  • Strong understanding of software architecture, design patterns, and system scalability.
  • Experience with web technologies, APIs, and modern frameworks (Spring Boot, Angular/React, etc.).
  • Solid knowledge of relational databases (Oracle experience is a strong plus).
  • Familiarity with deployment environments (Tomcat, containers, CI/CD pipelines).
  • Excellent communication skills and ability to collaborate with cross-functional teams.
  • Strong problem-solving mindset and pragmatic approach to balancing technical and business priorities.
  • Experience in biotech/medical/healthcare software.
  • DevOps & Cloud: Experience with containerization (Docker, Kubernetes) is highly desirable.
  • Problem Solving: Exceptional analytical and problem-solving skills, with the ability to tackle complex technical challenges and propose innovative solutions.
  • Communication & Leadership: Excellent communication, presentation, and interpersonal skills. Ability to articulate complex technical concepts to diverse audiences and effectively lead technical discussions.

Aplikuj