# Senior Data Scientist (f/m/d) at Pair

> Hybrid · Germany · Senior · Analytics / Data science · open. Source: https://alderhq.app/jobs/personio%3Apair%3A2045833 (read 2026-11-08).

## Facts (observed)

- Company: [Pair](https://alderhq.app/companies/pair)
- Location text: Berlin (Hybrid)
- Where it can be done from (inferred): Hybrid · Germany (evidence: "Location: Berlin (Hybrid)")
- Posted: 2025-04-04 (583 days ago)
- First seen by alder: 2026-11-04 · last verified: 2026-11-04
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://pair.jobs.personio.de/job/2045833
- Skills listed (inferred): Python, FastAPI, PostgreSQL, MySQL, AWS, PyTorch, LLMs

## Pay and sponsorship

- Posted pay: €76k–€104k per year (from the description)
- Market band for similar posted roles (Berlin, n 3): p25 €90k, median €90k, p75 €108k

## Description (the employer's text)

### Are you ready to change the market?

Are you a passionate and experienced Data Scientist, excited to work on improving and maintaining our data architecture? Join us to become a part of our strong international team that is transforming the traditional debt collection industry with innovation and a drive for excellence.

### Your Responsibilities:

- be part of our Data Science team to further optimize our innovative product based on machine learning and artificial intelligence
- work on advanced and demanding AI fields such as large language models
- identify, understand, structure and solve complex problems in a driven and pragmatic manner
- work on projects that deliver measurable value to our business
- experiment with new technologies and acquire new skills to find clever solutions to the unique challenges we will encounter along the way
- communicate between all stakeholders (data scientists, lead developers, product management, business owners) and present technical product concepts
### What we're looking for:

- degree in Data Science, Computer Science, Mathematics or similar
- 6+ years experience as Data Scientist, ideally in a startup or fintech company
- extensive and hands-on experience with deployment of (ideally open source) LLMs (hosting, fine-tuning, prompt engineering, evaluation)
- experience automating complex processes using LLMs, reducing system latency, increasing efficiency, etc.
- deep knowledge of server management, GPU orchestration, and computational optimization techniques
- extensive experience with Python and with data processing packages (e.g. Pandas, Numpy) and machine
- learning frameworks (e.g. pytorch, scikit-learn, transformers)
- familiarity with web frameworks like Flask or FastAPI
- deep knowledge of relational databases such as MySQL or PostgreSQL
- experience with agile development practices such as TDD/BDD, continuous integration, refactoring, code reviews, etc.
- experience with cloud-based infrastructure solutions, such as AWS
- experience with reinforcement learning is a strong plus
- excellent English speaking and writing skills
### Our offer for you:

- For this senior role, our salary band is €76,000 - €103,500 gross per year (based on a 40-hour work week). The exact offer will reflect your experience and qualifications
- We offer visa sponsorship
- Thriving, financially stable company
- Strong experienced international team to support and mentor you along the way, smooth onboarding process
- International team of 30+ nationalities with professionals and experts
- Flat hierarchy, transparent and appreciative feedback culture, monthly all hands meetings, annual feedback and evaluation cycle, regular 1-on-1s with your lead
- Well-structured onboarding process as well as supportive and welcoming colleagues
- Personal learning & development budget as well as German and English language courses
- Unlimited employment contract, flexible working hours and 28 vacation days for your work-life balance
- Company pension plan, partly covered Deutschlandticket (public transport) and access to “Corporate Benefits” voucher platform to ensure your full well-being
- Fun company summer and Christmas parties as well as regular team events
- This role is based in Berlin, and we have a hybrid working policy. Modern office near Uhlandstraße is complete with fresh fruit, muesli and drinks for a comfortable and enjoyable workplace
### Who is your contact person?

Your contact person for this position is Geneva Brooks. If you have any questions, please contact us directly by email (jobs@pairfinance.com). For more information about PAIR Finance, please take a look at our website and our careers page. We look forward to hearing from you!

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/personio%3Apair%3A2045833 and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.