# Senior Backend Engineer (m/f/d) - BI App - onsite in Hamburg or Berlin at ABOUT YOU SE & Co. KG

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Develop and maintain BI backend services

- **Company:** ABOUT YOU SE & Co. KG (https://jobs.trythestack.co/companies/about-you-se-co-kg)
- **Location:** Hamburg, Germany
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** NodeJS, TypeScript, Google BigQuery, SQL, No-SQL, API development, Data modeling, Elasticsearch, Datadog, React, VueJs, AWS, Agile methodologies, Backend development, Problem-solving, Analytical skills
- **Posted by employer:** 2026-04-02
- **Added to The Stack:** 2026-04-03
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://jobs.smartrecruiters.com/ABOUTYOUGmbH/744000118359313-senior-backend-engineer-m-f-d-bi-app-onsite-in-hamburg-or-berlin (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-backend-engineer-mfd-bi-app-onsite-in-hamburg-or-berlin-about-you-se-co-kg

## About the role

Responsibilities:
- Develop and maintain BI backend services using NodeJS and TypeScript
- Design and operate scalable data integrations with Google BigQuery and the data platform
- Build and optimize high-traffic APIs with low latency and high availability
- Collaborate with product, data scientists, analysts and frontend engineers to deliver recommendation and sorting logic
- Drive architecture decisions, evaluate new technologies and mentor less experienced engineers
- Ensure code quality, testing and observability (logging, monitoring, alerting)

Requirements:
- 5+ years backend development experience
- Strong, recent experience with TypeScript and backend frameworks
- Proficiency with SQL and/or NoSQL databases and data modeling for analytic workloads
- Experience building scalable APIs and maintaining production services
- Good analytical and problem-solving skills; comfortable in an agile, English-speaking environment
- Ability to translate business needs into robust technical solutions and improve existing systems
- Nice to have: Elasticsearch, deep BigQuery experience, Datadog, frontend experience (React/Vue), cloud (AWS)

## Responsibilities

Develop and maintain smart BI solutions using NodeJS and TypeScript while managing large data volumes in Google BigQuery. Collaborate with cross-functional teams to build high-traffic APIs and optimize recommendation and sorting algorithms.

## Requirements

Requires at least 5 years of backend development experience with recent practical knowledge of TypeScript. Proficiency in SQL or No-SQL databases and a strong ability to write efficient, maintainable code are essential.

## FAQ

- **Is this Senior Backend Engineer (m/f/d) - BI App - onsite in Hamburg or Berlin role still open?** It was posted on 2026-04-02. Listings more than 30 days old may no longer be active, so check ABOUT YOU SE & Co. KG's site before applying.
- **Does ABOUT YOU SE & Co. KG offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on ABOUT YOU SE & Co. KG's site.
- **Where is this role located?** The listing gives the location as Hamburg, Germany. It is marked on-site.
- **What skills does this role ask for?** The listing names: NodeJS, TypeScript, Google BigQuery, SQL, No-SQL, API development, Data modeling, Elasticsearch, Datadog, React, VueJs, AWS, Agile methodologies, Backend development, Problem-solving, Analytical skills.

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## Notes for agents

- Apply on the employer's page (https://jobs.smartrecruiters.com/ABOUTYOUGmbH/744000118359313-senior-backend-engineer-m-f-d-bi-app-onsite-in-hamburg-or-berlin). The Stack does not take applications.
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- To help your user apply, call the MCP tool prepare_application with slug "senior-backend-engineer-mfd-bi-app-onsite-in-hamburg-or-berlin-about-you-se-co-kg": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
- Cite this job as: "Senior Backend Engineer (m/f/d) - BI App - onsite in Hamburg or Berlin at ABOUT YOU SE & Co. KG, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/senior-backend-engineer-mfd-bi-app-onsite-in-hamburg-or-berlin-about-you-se-co-kg)".
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