Senior Full Stack Developer

Luxoft; Wrocław; Vor Ort; PLN 220.000 - 340.000; Vollzeit

Zusammenfassung

Luxoft is seeking a Senior Full-Stack Developer (Java + React) to join a client team building an AI-enabled platform for collateral and margin management in the investment banking sector. You will develop scalable back-end services with Java/Spring Boot and create high-performance front-end experiences with React/TypeScript, while integrating generative AI features and AI-assisted tooling.

You will mentor teammates, participate in code reviews, and ensure clean, secure coding standards across UI

Qualifikationen

• 8+ years of professional software development experience.
• 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, UI to backend and database.
• Hands-on experience with GitHub Copilot or similar AI coding assistants.
• Knowledge of generative AI and prompt engineering, including integrating LLM APIs (OpenAI, Azure OpenAI).
• Familiarity with CI/CD pipelines and Git-based workflows.
• Clean coding skills and problem-solving abilities.
• Familiarity with agile practices (Scrum, Kanban) and strong communication.

Aufgaben

• 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 to speed up delivery while maintaining quality and security.
• Design and integrate generative AI features, including prompt engineering and LLM API integration.
• Define and consume RESTful APIs and communicate requirements clearly across teams.
• Mentor teammates, lead code reviews and pair programming to raise technical level.
• Apply clean code practices and improve CI/CD tooling and processes.
• Write automated tests (unit/integration/e2e) for front-end and back-end.
• Participate in Scrum/Kanban ceremonies and collaborate with QA, product managers and architects.
• Support and evolve existing applications in a fast-paced investment-banking environment.

Kenntnisse

Java

Spring Boot

React

TypeScript

HTML

CSS

REST APIs

GitHub Copilot

AI/Prompt Engineering

CI/CD

Agile

Communication

Tools

GitHub Copilot

OpenAI API

Azure OpenAI

Jobbeschreibung

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 TypeScriptUse AI-assisted development tools such as GitHub Copilot to speed up delivery while keeping quality and security highDesign and integrate generative AI features into business applications, including prompt engineering, LLM integration and evaluation of model outputsDefine and consume RESTful APIs, and communicate requirements and constraints clearly across teamsAdvise and guide the team on architecture, design decisions and best practices, including the responsible use of AI toolsMentor developers and raise the team's technical level through code reviews and pair programmingTranslate business and product requirements into robust end-to-end technical solutionsApply clean code principles and help improve engineering standards, tooling and CI/CD pipelinesWrite and maintain automated tests (unit, integration, end-to-end) on both front end and back endTake an active part in agile ceremonies (Scrum/Kanban), including refinement, planning, reviews and retrospectivesWork closely with QA, product managers, architects and business stakeholders to deliver high-quality work that fits business needsSupport 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 projectsStrong hands-on experience with Java (Java 11+) and Spring / Spring BootStrong hands-on experience with React, TypeScript/JavaScript, HTML and CSSProven experience delivering full-stack features end to end, from UI to back-end services and the databaseHands-on experience with GitHub Copilot or similar AI coding assistants in daily developmentPractical knowledge of generative AI and prompt engineering, including integrating LLM APIs (e.g. OpenAI, Azure OpenAI)into applicationsFamiliarity with CI/CD pipelines and Git-based workflowsClean coding skillsExcellent problem-solving skillsFamiliarity with agile practices (Scrum, Kanban, etc.)Good communication skills and the ability to state requirements clearly to other teams

Nice to have

Experience in automated testing (JUnit, Jest, React Testing Library or similar)Experience in investment banking or capital marketsExposure to RAG architectures, vector databases or AI agent frameworksWorking knowledge of Unix/Linux and shell scripting