Senior Backend Developer (m/f/d)

Sciencentric; Düsseldorf; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Transparent salaries

Health benefits

Dog-friendly office

50% discount on job ticket

Job summary

Sciencentric AG is seeking a Senior Backend Developer (m/f/d) with a focus on Java for enterprise environments. You will design, implement, and integrate modular microservices, work closely with cross-functional teams, and directly engage with customers to incorporate feedback.

Strong skills in REST APIs, API design, and cloud/integration tech are required. Proficiency with Git, Maven/Gradle, and CI/CD pipelines is expected, along with experience in relational databases and modern DevOps

Qualifications

• Experience with REST APIs and API design.
• Familiarity with relational databases (SQL).
• Git expert with build tools like Maven/Gradle.
• Knowledge of DevOps and CI/CD pipelines.
• Experience with API integration incl. OpenAPI, GraphQL or WebSockets.
• Familiarity with OAuth2/OpenID Connect and Keycloak.
• Experience with TIBCO BusinessWorks.
• Willingness to independently learn new technologies.

Responsibilities

• Drive innovation by developing enterprise-grade applications.
• Design, implement, and integrate modular microservices.
• Collaborate with developers, UX/UI designers, and stakeholders to bridge requirements.
• Work directly with customers and incorporate feedback into development.
• Leverage REST APIs and API design knowledge in daily work.

Skills

REST APIs

Microservices

Unit testing & integration testing

Teamwork & communication

DevOps

CI/CD pipelines

API integration

Tools

Git

Maven

Gradle

OpenAPI

GraphQL

WebSockets

Azure

AWS

GCP

Job description

Senior Backend Developer (m/f/d)Focus on Java in an Enterprise environment

We are not just a software development company - we are innovation partners for both the business and scientific worlds. With us, you'll work on customized solutions that help shape the future. If you are passionate about programming, curious about new technologies, and want to make an impact with your ideas, then you've come to the right place!

• Drive innovation forward: Develop applications that solve complex problems and set new standards in the enterprise sector.
• Microservices-Architektur: Du konzipierst, implementierst and integrierst modulare Services.
• Teamwork & communication: In close collaboration with developers, UX/UI designers, and stakeholders, you create solutions that bridge business and technical requirements.
• Customer-focused work: work directly with our customers and incorporate their feedback into development.
• You are also familiar with REST APIs and API design.
• The use of relational databases (SQL) is very familiar to you.
• You are a Git expert and are familiar with build tools such as Maven and Gradle.
• You are also familiar with DevOps and CI/CD pipelines.
• You know how to work with unit testing & integration testing.
• You are highly motivated and have a strong interest in independently familiarizing yourself with new technological topics.
• In addition, you have knowledge of Azure, AWS, or GCP.
• You have gained experience in API integration and are familiar not only with OpenAPI but also with GraphQL or WebSockets.
• OAuth2 / OpenID Connect and Keycloak are familiar to you.
• You already have experience with TIBCO BusinessWorks.
• Modern technology & real challenges: together with us, you will work on exciting and diverse projects that solve real problems.
• Small teams, big impact: with us, you will join a young, open, and supportive team. Here, you will always find the right people to turn to.
• Personal onboarding & development: we support you from the very beginning and in your continuous professional development.
• Fair compensation & benefits: transparent salaries, health benefits, a dog-friendly office, and a 50% discount on your job ticket.