April 8, 2026

Full Stack Developer – Java and Python Expertise

Senior • Hybrid

1,200 - 1,400 PLN

Krakow, Poland

Ignite innovation through full-stack development — craft solutions that reshape financial markets with cutting-edge technology.

Kraków-based opportunity with hybrid work model (up to 3 remote days per week).

As a Full Stack Developer, you will be working for our client, a leading player in the financial technology sector, within the AI Markets team. You will contribute to developing and supporting transformative natural language processing tools that revolutionize how institutional investors access real-time global markets data, enabling faster, smarter financial decisions. This role offers a unique chance to be at the forefront of AI-driven innovation in a dynamic, fast-paced environment that values continuous learning and mobility.

Your main responsibilities:

  • Collaborate within a small, agile team of 4-6 members to deliver high-quality features iteratively from requirements to production.

  • Take business requirements, break them into user stories, and implement solutions using Java and Python in an efficient, scalable manner.

  • Participate in all phases of the development lifecycle, including analysis, testing, deployment, and production support, embodying the “build it, support it” philosophy.

  • Identify and address technical debt, ensuring a sustainable balance between new development and system health.

  • Design solutions aligned with technology standards, guidelines, and constraints while focusing on optimal performance and security.

  • Pair with team members to share expertise, review code, and foster continuous improvement.

You're ideal for this role if you have:

  • Minimum 4 years of experience in full stack development, ideally within financial or data-driven environments.

  • Deep understanding of software development principles such as SOLID, Clean Code, DDD, and BDD.

  • Proven experience with Java (especially Spring Framework) and Python.

  • Solid knowledge of SQL/NoSQL databases, including PostgreSQL and MongoDB.

  • Familiarity with microservices architecture and event streaming technologies is a plus.

  • Experience with machine learning, NLP, AI, or Data Science is advantageous.

  • Excellent communication skills in fluent English, both oral and written.

  • Ability to work effectively in a hybrid environment and adapt to cross-geography collaboration.

It is a strong plus if you have:

  • Experience with Prompt Engineering, LangChain, LangGraph, or Clean Architecture.

  • Prior exposure to front-end platforms such as JavaScript, Vue, or React.

Language Required for the role:

  • Fluent English (oral and written)

Eligibility for the role:

  • Only candidates with an existing legal right to work in the European Union will be considered for this role.

We offer you:

ITDS Business Consultants is involved in various, innovative, and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people. The offer includes:

  • Stable and long-term cooperation with very good conditions

  • Enhance your skills and develop your expertise in the financial industry

  • Work on the most strategic projects available in the market

  • Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years

  • Participation in Social Events, training, and work in an international environment

  • Access to an attractive Medical Package

  • Access to Multisport Program

#GETREADY

Internal job ID #8882

You can report violations in accordance with ITDS’s Whistleblower Procedure available here.

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Hybrid

Warsaw, Poland

🏢 Summary: Full-stack Developer role on a large-scale, globally distributed payments platform processing millions of transactions. The position involves building and maintaining enterprise web applications using Java and Angular or React, with strong focus on performance, security, and scalability. Hybrid work model with collaboration across global teams. 🗂️ Requirements: Bachelor’s Degree in Computer Science, Software Engineering or related field, 7+ years of full-stack development experience, Strong experience with Java and Angular or React, Experience designing and building RESTful APIs and web services, Solid understanding of HTTP, HTML, REST, JSON, Experience with full SDLC lifecycle, Ability to troubleshoot and perform root-cause analysis, Experience working with ticketing and log management tools 📃 Skills: Java, Angular, React, REST, HTTP, HTML, JSON, SDLC, Jira, ServiceNow, Splunk 🏢 Description: 📌 We’re looking for an experienced Full-stack Developer to join a fast-paced, high-impact project in the financial / payments domain. You’ll be working on a large-scale, globally distributed platform that processes millions of transactions and powers critical payment flows used worldwide. The project focuses on performance, security, and scalability, with strong engineering standards and modern technologies. 📍 This is a hybrid role with 4 days remote and 1 day in-office (Warsaw or Gdańsk). What you’ll do: Develop and maintain enterprise-scale web applications using modern tech stacks (Java + Angular or React) Design, build, and test RESTful APIs and web services Troubleshoot and perform root-cause analysis on complex issues Collaborate with global teams on concurrent projects in a fast-paced environment Ensure code meets security, performance, and scalability standards Work with ticketing systems (Jira, ServiceNow) and log retrieval tools (Splunk) What we’re looking for: Bachelor’s Degree in Computer Science, Software Engineering, or related field 7+ years of hands-on development experience with full lifecycle SDLC knowledge Solid understanding of web technologies (HTTP, HTML, REST, JSON) Proven ability to handle multitasking, deadlines, and complex projects A proactive mindset: embraces new technology, tight timelines, and parallel projects Strong interpersonal and facilitation skills with clear written & verbal communication Excellent planning, organizational, and problem-solving abilities What we offer: Hybrid work: 4 days remote + 1 day in Warsaw or Gdańsk office Work on large-scale, impactful projects in the finance/ payments industry Collaborate with distributed global teams Opportunity to grow and learn in a fast-paced, technology-driven environment 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk