Senior Full Stack (Java/React) Engineer
- Hiring from
- Poland
- Work type
- Remote
- Posted
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Project description
We're looking for a senior Full-Stack Developer (Java + React) to join our client's team and help build a new AI-enabled application platform. The team works with modern AI-assisted tools such as GitHub Copilot and generative AI, and cares about clean code, agile methods and high-quality delivery. The client is in the investment banking industry, and the platform supports collateral and margin management.
Responsibilities
Design, develop and maintain scalable back-end services and APIs using Java (Spring Boot)
Build responsive, high-performance front-end applications using React and TypeScript
Use AI-assisted development tools such as GitHub Copilot to speed up delivery while keeping quality and security high
Design and integrate generative AI features into business applications, including prompt engineering, LLM integration and evaluation of model outputs
Define and consume RESTful APIs, and communicate requirements and constraints clearly across teams
Advise and guide the team on architecture, design decisions and best practices, including the responsible use of AI tools
Mentor developers and raise the team's technical level through code reviews and pair programming
Translate business and product requirements into robust end-to-end technical solutions
Apply clean code principles and help improve engineering standards, tooling and CI/CD pipelines
Write and maintain automated tests (unit, integration, end-to-end) on both front end and back end
Take an active part in agile ceremonies (Scrum/Kanban), including refinement, planning, reviews and retrospectives
Work closely with QA, product managers, architects and business stakeholders to deliver high-quality work that fits business needs
Support and improve existing applications in a fast-paced, enterprise investment-banking environment
Skills
Must have
At least 8 years of professional software development experience, including long-term projects
Strong hands-on experience with Java (Java 11+) and Spring / Spring Boot
Strong hands-on experience with React, TypeScript/JavaScript, HTML and CSS
Proven experience delivering full-stack features end to end, from UI to back-end services and the database
Hands-on experience with GitHub Copilot or similar AI coding assistants in daily development
Practical knowledge of generative AI and prompt engineering, including integrating LLM APIs (e.g. OpenAI, Azure OpenAI) into applications
Strong SQL skills and experience with relational databases
Experience in automated testing (JUnit, Jest, React Testing Library or similar)
Familiarity with CI/CD pipelines and Git-based workflows
Clean coding skills
Excellent problem-solving skills
Familiarity with agile practices (Scrum, Kanban, etc.)
Good communication skills and the ability to state requirements clearly to other teams
Nice to have
.Hands-on experience with Sybase (ASE and/or IQ), including stored procedures and performance tuning
Knowledge of the collateral management and margin domain (e.g. margin calls, ISDA/CSA, initial and variation margin, SIMM)
Experience in investment banking or capital markets
Exposure to RAG architectures, vector databases or AI agent frameworks
Working knowledge of Unix/Linux and shell scripting
Other
Languages
English: C1 Advanced
Seniority
Senior
Luxoft Benefits*
- ●Relocation options **
- ●Experience in an international environment
- ●Cross-cultural experience
- ●Feedback culture
- ●Regular appraisals
- ●Annual holiday - 20 or 26 days. The duration of the leave depends on the overall seniority
- ●Occasional leave - 1 or 2 days/ depending on the circumstances
- ●Child care leave - 2 days or 16 hours per year
- ●Absence due to force majeure - 2 days or 16 hours per year
- ●Maternity Leave - 20 weeks
- ●Parental Leave - 41 weeks
- ●Paternity Leave - 14 days
- ●Expert-led tech courses covering basic to advanced topics
- ●Internal instructor-led soft skills courses
- ●Comprehensive in-house self-learning resources for both soft and hard skills
- ●Access to external self-learning libraries like ProQuest eBook and Udemy for Business
- ●Cloud Programs: MS Cloud Academy, AWS Partner Academy, Google Cloud Academy
- ●Custom Learning Programs: upskilling, reskilling, technical mentorship
- ●Leadership Programs for Managers
- ●Multisport card
- ●Possibility to order Multisport card at the corporate rate for family members
- ●LuxGood Program: wellbeing seminars, contests, relaxation sessions, yoga sessions, etc.
- ●One Team Program: Buddy for each New Joiner; seminars, meeting and workplace space to support integration with local community and culture; “Hire me” workshops for partners
- ●Preferential banking offer
- ●Preferential car leasing offer
- ●Cafeteria program discounts for shops, cinema tickets, holiday offers
- ●Luxoft Social Benefit Fund: sport and recreation benefits, the possibility to receive financial support
- ●Private Healthcare Insurance with unlimited access to specialists
- ●Full dental support
- ●Travel Insurance
- ●Possibility to add private healthcare coverage for family members at the corporate rate
- ●Life insurance at the corporate rate for employees and family members, including payment of the basic package for the employee by the employer
- ●Reimbursement for corrective glasses
- ●Many fun social activities organized by the Luxoft team offline in your city
- ●Online entertainment events for whole company and local team events
- ●A workplace where you’re treated with respect within a multicultural team
- ●Rotation between projects and accounts
- ●New career opportunities
Self-Learning Library
CSR Projects
*The acquisition of rights to the above benefits depends on the form of cooperation. Benefits apply to those employed under a contract of employment.
**Please note that relocation is not available for all open positions. At Luxoft Poland it is possible to work remotely only from the territory of Poland.
***Options offered by the Polish government.
Krakow, Poland
Req. VR-125423
Java Full Stack
BCM Industry
09/10/2026
Req. VR-125423
Apply for Senior Full Stack (Java/React) Engineer in Krakow
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