Software engineer

We are looking for a Software Engineer with a strong innovation mindset to help a Swedish client reshape and modernize their API platform. In this role, you’ll take the lead in revamping, refactoring, and restructuring the application layer, driving meaningful improvements to enhancements and user experience.

A collaborative, cross-functional approach is key to success in this role, as you’ll work closely with teams across the organization to build modern, robust application solutions that elevate the API platform.

Requirements:
Proficient in JavaScript, TypeScript and Node.js for backend development

Microservices Architecture:
Experience in designing, developing, and deploying microservices
Understanding of distributed systems, and inter-service communication patterns

API Design and Development:
Strong experience with RESTful APIs
Familiarity with OpenAPI Specification
Experience with asynchronous APIs and event-driven architectures (e.g., Pub/Sub, Kafka, or similar)
Adherence to API design best practices and API standards

Cloud Platform:
Proficiency with Google Cloud Platform (GCP) services such as:
Cloud Functions / Cloud Run
Pub/Sub
Cloud Storage, Firestore, BigQuery

CI/CD & DevOps:
Experience with GitHub Actions for CI/CD pipelines
Basic understanding of DevOps principles and infrastructure automation
Version control using Git and GitHub (including branching strategies, pull requests, code reviews)
Familiarity with Docker – writing Dockerfiles, building containers, and using container registries
Basic knowledge of Terraform for infrastructure-as-code

Event-Driven & Async Architecture:
Understanding of asynchronous communication patterns
Implementing patterns such as event sourcing

Testing & Quality:
Writing unit, integration, and end-to-end tests
Familiarity with testing frameworks (e.g., Jest, Mocha)

Security & Performance:
Understanding of authentication/authorization mechanisms (OAuth2, JWT)
Familiarity with secure coding practices and API security

Frontend (Bonus):
Basic knowledge of React or other modern frontend frameworks
Ability to collaborate with frontend teams in API contracts and integrations

Tools & Technologies:- Languages: JavaScript, TypeScript, Node.js

APIs: REST, OpenAPI, Async APIs
CI/CD: GitHub Actions
DevOps: Docker, Terraform (basic), Git, GitHub
Cloud: GCP (Cloud Run, Pub/Sub, etc.)
Testing: Jest, Mocha, etc.
Frontend (Bonus): React

Location: Preferred Helsingborg, Sweden.
Duration: 16-Jun-2025 - 31-Aug-2025
Deadline for applications: 13-Jun-2025
More info tiina.hapuoja@witted.com