Senior Software Developer, Java Fullstack

Haeger Consulting

Senior Software Developer focusing on Java full-stack development at Haeger Consulting. Collaborating on creative projects while ensuring clean code and innovative solutions in Bonn.

Posted 7/15/2026full-timeBonn • 🇩🇪 GermanySeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Full-Stack Development with a strong focus on Java backend technologies, particularly within the Spring ecosystem. Proficient in modern frontend frameworks and experienced in CI/CD, containerization, and cloud services, while also possessing strong problem-solving and collaboration skills.

Highest-signal resume keywords

Full-Stack DevelopmentJava Backend DevelopmentSpring BootReactCI/CD Pipelines

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Applicant Tracking System Keywords

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Hard Skills

JavaKotlinPythonSpring BootSpring CloudReactAngularCI/CDContainerizationCloud Services

Soft Skills

Problem SolvingSelf-OrganizationTeam Spirit

Industry Keywords

Full-Stack DevelopmentTest-Driven DevelopmentDevOpsClean CodeArchitecture

Tech Stack

Tools & technologies

AngularCloudJavaKotlinPythonReactSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Full-stack development: You design and implement Java and web applications across front-end and back-end — your creativity is in demand on client projects!
Depending on your interests and background, you may have the opportunity to take on technical (partial) project leadership.
Quality guardian: Clean Code, Test-Driven Development and DevOps are not foreign concepts to you but part of your daily toolkit.
Thoughtful architecture: You see architecture as the foundation of good software.
Technology & innovation: You are always looking for the latest trends, architectures and technologies and are happy to try them out.
Problem solving: You identify technical issues, optimize existing solutions and develop creative approaches.
Collaboration: You work closely with other teams to find the best solutions for the project.
Advisory role: You are not only a developer but also an advisor in client projects, actively contributing your expertise.
Professional development: Practice-oriented training — especially in architecture and cloud topics — as well as regular knowledge exchange in our guilds is part of our DNA.

Requirements

What you’ll need

You have several years of experience in full-stack development, with a backend focus on Java, optionally complemented by Kotlin or Python.
You have in-depth knowledge of Java backend development with a focus on the Spring ecosystem, especially Spring Boot and Spring Cloud.
You are proficient in at least one modern frontend framework such as React or Angular.
You bring experience with CI/CD pipelines, containerization and cloud services.
Your strong self-organization, team spirit and problem-solving skills complete your profile.
Ideally, you already have (partial) project leadership experience.
You speak German at a native level and communicating in English is no problem.

Benefits

Comp & perks

Innovative projects and creative environment: You work on exciting projects in a creative and dynamic workplace with plenty of room for your own ideas and personal development.
Agility: You will be part of a team that works agilely and flexibly to always achieve the best results.
Flexibility: Shape your working day to suit your needs — with the option for remote work and flexible hours.
Share knowledge & grow together — you benefit from intensive internal knowledge transfer and have the opportunity to actively contribute to the team's development — both technically and personally.
Team spirit: In our open and collegial environment, teamwork is highly valued — we believe the best ideas come from collaboration.
We value diversity and promote a culture of inclusion. Everyone is warmly welcome here!
Attractive benefits: You receive a competitive salary, various benefits and fun employee events.