Backend Engineer (m/f/d) at JOIN
May no longer be active — verify on the employer site
At a glance
- Company
- JOIN
- Location
- Germany
- Work arrangement
- On-site
- Employment type
- Full-time
- Experience
- 5–10 years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
✨ The Stack take on this JOIN job
- 🏢 This is JOIN's only job here right now
- 🛂 Visa: EU Blue Card. Minimum salary: €50,700 a year guide
- 💡 No salary shown. Ask JOIN if it is above the minimum.
Updated 2026-11-05, from our data and official sources.
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About the role
Responsibilities:
- Collaborate with frontend, product and DevOps/platform teams to design and deliver backend features in an Agile/Kanban workflow.
- Implement scalable, reliable server-side components and APIs used by tens of thousands of users.
- Define technical requirements, choose implementation approaches and trade-offs that meet product goals.
- Write and maintain unit and integration tests; follow TDD and testing best practices.
- Conduct and participate in peer code reviews, retrospectives and continuous improvement activities.
- Improve platform architecture, performance and developer experience (linters, templates, code generation).
- Work with message brokers, RDBMS and async systems to ensure robustness and observability.
Requirements:
- 5+ years backend development experience.
- 2+ years working with a strongly typed language (TypeScript preferred) or equivalent experience.
- Strong experience with RDBMS (raw queries or ORM) and designing reliable data access patterns.
- Practiced in unit and integration testing and test-driven development.
- Experience with message brokers (SNS, RabbitMQ, Kafka, Google Pub/Sub, etc.).
- Familiarity with Node.js, GraphQL, cloud platforms (GCP/AWS), gRPC and protobufs is a plus.
- Good understanding of SOLID principles, clean architecture and pragmatic engineering trade-offs.
- Comfortable working in cross-functional teams and contributing beyond code to product and UX improvements.
Responsibilities
You will collaborate with cross-functional teams to build scalable features and improve platform architecture using Agile methodologies. Your role involves conducting code reviews and defining technical requirements to ensure high-quality, robust software delivery.
Requirements
Candidates should have at least 5 years of backend development experience and proficiency in strongly typed languages or TypeScript. Strong knowledge of RDBMS, testing practices, and message brokers is required for this position.
Key skills
- Backend development — in 171 other listings on The Stack
- TypeScript — in 467 other listings on The Stack
- RDBMS — in 3 other listings on The Stack
- Unit testing — in 53 other listings on The Stack
- Integration testing — in 49 other listings on The Stack
- Message brokers — in 5 other listings on The Stack
- Node.js — in 172 other listings on The Stack
- GraphQL — in 90 other listings on The Stack
- GCP
- AWS
- gRPC
- Protobufs
- SOLID principles
- Agile
- Kanban
- Test-driven development
On The Stack (as of 2026-11-05)
Frequently asked questions about JOIN
Is this Backend Engineer (m/f/d) role still open?
It was posted on 2026-07-31. Listings more than 30 days old may no longer be active, so check JOIN's site before applying.
Does JOIN offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on JOIN's site.
Where is this role located?
The listing gives the location as Germany. It is marked on-site.
What skills does this role ask for?
The listing names: Backend development, TypeScript, RDBMS, Unit testing, Integration testing, Message brokers, Node.js, GraphQL, GCP, AWS, gRPC, Protobufs, SOLID principles, Agile, Kanban, Test-driven development.