Software Engineer

TalentStax LTD; Köln; Vor Ort; EUR 60.000 - 85.000; Vollzeit

Zusammenfassung

A leading company is seeking a Senior Full Stack Developer to shape the next generation of their core products. In this role, you'll take ownership of end-to-end feature development, collaborating with teams to deliver high-performance applications, while mentoring junior developers and driving architectural decisions.

Qualifikationen

• 5+ years of professional experience as a full stack developer.
• Deep knowledge of Java and Spring Boot.
• Proven experience with modern React.

Aufgaben

• Drive architectural decisions across backend and frontend systems.
• Mentor junior developers and improve team-wide best practices.
• Ensure code quality through reviews and automated testing.

Kenntnisse

Java

Spring Boot

React

Docker

Kubernetes

RESTful services

Agile delivery

Tools

Git

Jenkins

JIRA

Confluence

Jobbeschreibung

With a strong reputation for building scalable, user-centric platforms, my client continuing to push boundaries, and we’re looking for a Senior Full Stack Developer to help shape the next generation of their core products.

This is an opportunity to work in a collaborative, engineering-first environment where your code will directly impact thousands of users and where technical excellence is recognised.

Role Overview :

As a Senior Full Stack Developer, you’ll take ownership of end-to-end feature development across our modern technology stack. You'll collaborate closely with Product, DevOps, and fellow engineers to architect, build, and ship high-performance applications. This role demands a hands-on approach to solving complex technical challenges and a passion for delivering clean, scalable solutions.

Key Responsibilities :

• Drive architectural decisions across backend and frontend systems, ensuring performance, security, and scalability.
• Collaborate with product managers, designers, and other developers to define and deliver new features.
• Mentor junior developers and contribute to improving team-wide best practices and development standards.
• Ensure code quality through code reviews, automated testing, and continuous integration.
• Work with containerised applications using Docker and orchestrate deployments via Kubernetes on AWS.
• Troubleshoot, diagnose, and resolve performance and reliability issues across the stack.

Tech Stack You’ll Work With :

• Backend : Java 17+, Spring Boot, REST APIs
• Frontend : React, TypeScript, Webpack, Redux
• CI / CD & Tools : Git, Jenkins / GitHub Actions, JIRA, Confluence
• Databases : PostgreSQL, Redis, and experience with messaging systems is a plus (Kafka, RabbitMQ)

What We’re Looking For :

• 5+ years of professional experience as a full stack developer, with a strong emphasis on both backend and frontend delivery.
• Deep knowledge of Java and Spring Boot for backend services.
• Proven experience with modern React for frontend development.
• Solid understanding of RESTful services, distributed systems, and microservices architecture.
• Hands-on experience with Docker, Kubernetes, and deploying applications on AWS.
• Strong grasp of software engineering principles, testing methodologies, and agile delivery.
• Excellent communication skills and ability to work effectively in a collaborative environment.
• A proactive mindset—comfortable proposing improvements and leading initiatives.