Know ATS Score
CV/Résumé Score
  • Expertini Resume Scoring: Our Semantic Matching Algorithm evaluates your CV/Résumé before you apply for this job role: Senior Java Backend Developer.
Poland Jobs Expertini

Urgent! Senior Java Backend Developer Job Opening In Warsaw – Now Hiring Experis

Senior Java Backend Developer



Job description

Start Date: ASAP / within 1 month / flexible
Work Model: 100% Remote

Contract Type: B2B (170–190 PLN/h + VAT)

About the Project

Join a dynamic Agile team building underwriting tools for a global community of underwriters.

These tools model the underwriting process and integrate pricing mechanisms, forming the core of our client’s value chain.

We use a modern microservice architecture with technologies such as Java, Kotlin, Spring on the backend, and Angular, NodeJS, Express, Fastify on the frontend.

Tech Stack:

Java Core (11, 17), Spring Boot, Spring Data, JPA, Hibernate, RabbitMQ

Your Responsibilities

  • Design and implement complex software applications using REST microservices with Java, Kotlin, Spring, and JUnit
  • Collaborate in cross-functional Agile teams with BAs, POs, QAs, FEs, and UX Designers
  • Ensure code quality, scalability, and maintainability
  • Monitor product quality and apply design patterns
  • Lead technical discussions for continuous improvement
  • Communicate effectively with stakeholders across various levels and backgrounds
  • Analyze project environments and propose solutions
  • Your Profile

  • Bachelor’s degree in IT or equivalent experience
  • English proficiency (minimum B2 level)
  • 10+ years of experience in backend development
  • Strong skills in Java Core, Spring Boot, Spring Data, JPA, Hibernate, RabbitMQ
  • Solid understanding of data structures, algorithms, and complexity analysis
  • Experience with distributed systems and microservices architecture
  • Skilled in API design and maintenance
  • Proficient in relational databases and query optimization
  • Familiar with testing approaches and code validation
  • Knowledge of browser debugging techniques
  • Experience with CI/CD tools (e.g., Azure DevOps, GitHub Actions)
  • Agile methodology experience (SAFe is a plus)
  • Kafka and architectural design experience are a plus
  • Willingness to learn Kotlin and Quarkus if not already familiar
  • What We Offer

  • Medicover healthcare package
  • Multisport card
  • Access to e-learning platform
  • Group life insurance
  • Experis to światowy lider rekrutacji specjalistów i kadry zarządzającej w kluczowych obszarach IT.

    Z nami znajdziesz konkurencyjne oferty zatrudnienia oraz ciekawe projekty IT skierowane zarówno do ekspertów z wieloletnim doświadczeniem, jak i osób, które dopiero zaczynają swoją przygodę w branży IT.


    Required Skill Profession

    Computer Occupations



    Your Complete Job Search Toolkit

    ✨ Smart • Intelligent • Private • Secure

    Start Using Our Tools

    Join thousands of professionals who've advanced their careers with our platform

    Rate or Report This Job
    If you feel this job is inaccurate or spam kindly report to us using below form.
    Please Note: This is NOT a job application form.


      Unlock Your Senior Java Potential: Insight & Career Growth Guide


    • Real-time Senior Java Jobs Trends in Warsaw, Poland (Graphical Representation)

      Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Senior Java in Warsaw, Poland using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 5717 jobs in Poland and 1976 jobs in Warsaw. This comprehensive analysis highlights market share and opportunities for professionals in Senior Java roles. These dynamic trends provide a better understanding of the job market landscape in these regions.

    • Are You Looking for Senior Java Backend Developer Job?

      Great news! is currently hiring and seeking a Senior Java Backend Developer to join their team. Feel free to download the job details.

      Wait no longer! Are you also interested in exploring similar jobs? Search now: .

    • The Work Culture

      An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Experis adheres to the cultural norms as outlined by Expertini.

      The fundamental ethical values are:
      • 1. Independence
      • 2. Loyalty
      • 3. Impartiality
      • 4. Integrity
      • 5. Accountability
      • 6. Respect for human rights
      • 7. Obeying Poland laws and regulations
    • What Is the Average Salary Range for Senior Java Backend Developer Positions?

      The average salary range for a varies, but the pay scale is rated "Standard" in Warsaw. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

    • What Are the Key Qualifications for Senior Java Backend Developer?

      Key qualifications for Senior Java Backend Developer typically include Computer Occupations and a list of qualifications and expertise as mentioned in the job specification. Be sure to check the specific job listing for detailed requirements and qualifications.

    • How Can I Improve My Chances of Getting Hired for Senior Java Backend Developer?

      To improve your chances of getting hired for Senior Java Backend Developer, consider enhancing your skills. Check your CV/Résumé Score with our free Tool. We have an in-built Resume Scoring tool that gives you the matching score for each job based on your CV/Résumé once it is uploaded. This can help you align your CV/Résumé according to the job requirements and enhance your skills if needed.

    • Interview Tips for Senior Java Backend Developer Job Success
      Experis interview tips for Senior Java Backend Developer

      Here are some tips to help you prepare for and ace your job interview:

      Before the Interview:
      • Research: Learn about the Experis's mission, values, products, and the specific job requirements and get further information about
      • Other Openings
      • Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.
      • Dress Professionally: Choose attire appropriate for the company culture.
      • Prepare Questions: Show your interest by having thoughtful questions for the interviewer.
      • Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.
      During the Interview:
      • Be Punctual: Arrive on time to demonstrate professionalism and respect.
      • Make a Great First Impression: Greet the interviewer with a handshake, smile, and eye contact.
      • Confidence and Enthusiasm: Project a positive attitude and show your genuine interest in the opportunity.
      • Answer Thoughtfully: Listen carefully, take a moment to formulate clear and concise responses. Highlight relevant skills and experiences using the STAR method.
      • Ask Prepared Questions: Demonstrate curiosity and engagement with the role and company.
      • Follow Up: Send a thank-you email to the interviewer within 24 hours.
      Additional Tips:
      • Be Yourself: Let your personality shine through while maintaining professionalism.
      • Be Honest: Don't exaggerate your skills or experience.
      • Be Positive: Focus on your strengths and accomplishments.
      • Body Language: Maintain good posture, avoid fidgeting, and make eye contact.
      • Turn Off Phone: Avoid distractions during the interview.
      Final Thought:

      To prepare for your Senior Java Backend Developer interview at Experis, research the company, understand the job requirements, and practice common interview questions.

      Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Experis's products or services and be prepared to discuss how you can contribute to their success.

      By following these tips, you can increase your chances of making a positive impression and landing the job!

    • How to Set Up Job Alerts for Senior Java Backend Developer Positions

      Setting up job alerts for Senior Java Backend Developer is easy with Poland Jobs Expertini. Simply visit our job alerts page here, enter your preferred job title and location, and choose how often you want to receive notifications. You'll get the latest job openings sent directly to your email for FREE!