Senior Software Developer – Kotlin, React, Microservice Architecture, DevOps

Project overview

Westhouse is one of the leading recruitment companies for the placement of highly qualified specialists from the entire IT lifecycle and engineering sector.

We are currently looking for a

Senior Software Developer – Kotlin, React, Microservice Architecture, DevOps - Remote/Frankfurt am Main

Framework Information

Your Qualifications

• Reference: 180612
• Start: 2026-11-03
• Duration: 2029-12-31
• Location: Remote/Frankfurt am Main
• Scope of Work: full-time691 days (of which 0 onsite)
• Languages: German (C2)
• Please ONLY apply if ALL criteria are met:

Responsibilities

Interested?

Interested? We look forward to receiving your comprehensive CV in electronic form.

Your Contacts

Elvin Cagi

P: [contact removed]

E: [contact removed]

• Building and evolutionary further development of the microservice architecture suitable for the business domain using Domain-Driven Design methods
• Promoting and driving the implementation of the technological strategy, architectural-technical knowledge exchange, and innovation and standardization within the project
• Consulting on the implementation of the technical architecture in software development
• Implementation of technical components in applications based on the technologies used (microservice architectures, Spring, AWS, Messaging, Kotlin) including associated interfaces, modules, and corresponding databases
• Implementation and optimization of CI/CD pipelines based on Gitlab CI, Jenkins, Docker, and OpenShift (Kubernetes)
• Ensuring stable application operation as automated as possible with continuous improvement of architecture, processes, and tools.
• Programming / Implementation / Customizing technical components in applications based on the technologies used, including associated interfaces, modules, and corresponding databases, while adhering to the client's standards (e.g., use of standardized development environments and programming guidelines)

Requirements

• Software Development & Application Architecture in the Backend: Min. 5 years of experience in Kotlin development within an Application Design context (e.g., Ports & Adapter, IODA, etc.).
• Software Development & Application Architecture: Min. 5 years of experience and frontend programming & architecture knowledge, at least with React.
• At least 5 years of experience with agile engineering practices
• At least 5 years of experience with cloud-based and containerized infrastructure in microservice architectures
• At least 5 years of experience and methodology & technology knowledge with DevOps
• SHOULD-HAVE criteria:
• Proven practical experience from at least 2 projects with methods and tools of strategic and tactical Domain Driven Design
• Proven practical experience from at least 2 projects with the Docs-First approach (e.g., Docs-as-Code, Spec Driven Development, etc.)
• At least 5 years of practical experience with monitoring using Prometheus
• At least 5 years of practical experience with Spring Boot

Project details

• Start: 2026-11-03
• Duration: 31.12.2029
• Remote: remote
• Location: Remote/Frankfurt am Main, DE
• Languages: German