# Langfuse - Senior Product Engineer

Why Product Engineering at Langfuse Your work will have an outsized impact. Everything you build is open source (MIT-licensed) and immediately visible. Langfuse has 35,000+ GitHub stars and our SDKs are downloaded more than a hundred million times per month. When you ship a new feature the community notices in GitHub issues, on X, and in our community channels. Product engineers at Langfuse are the people who deliver new features end-to-end to our users. You own the product thinking from understanding the user problem to deciding what to build to shipping the solution. You will also have direct exposure to how cutting-edge LLM applications are built. The users you serve are some of the best and most ambitious software engineers leveraging Langfuse to improve their applications. Deeply understanding the problems they solve will help you design the best possible product and along the way makes you an expert on LLM engineering yourself. You will grow at Langfuse by Own features end-to-end: from talking to users, to writing the spec, to shipping the code and docs, to writing the changelog post with your name on it. To give you a sense: recent features a single engineer owned include th

- **Id**: 1030893
- **Url**: <https://alion.io/job/clickhouse-langfuse-senior-product-engineer>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: senior
- **Employment type**: full_time
- **Work mode**: hybrid
- **Hiring geo confidence**: structured
- **Locations**: Berlin, Germany, France, Italy, Netherlands, Spain, Portugal
- **Countries**: DE, FR, IT, NL, ES, PT
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: yes
- **Status**: live
- **First seen at**: 2026-09-18T13:28:27Z
- **Employer posted date**: 2026-09-18
- **Last verified at**: 2026-11-11T04:36:24Z
- **Board verified**: yes
- **Days open**: 53
- **Description format**: text
- **Description chars**: 4726
- **Description truncated**: no
- **Benefits**: Equity, Flexible schedule, Flexible time off, Home office, Stock options
- **Relocation offered**: no
- **Industries**: Data Warehouses & Lakehouses, Databases & DBMS

## Company

- **Id**: 3448
- **Name**: ClickHouse
- **Domain**: clickhouse.com
- **Url**: <https://alion.io/company/clickhouse>
- **Size band**: 1001-5000
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Ashby

### Truth index

- **Grade**: B
- **Score**: 80
- **Open postings**: 51
- **Ghost share**: 0
- **Stale share**: 0.608
- **Repost share**: 0
- **Time to fill p50 days**: 65
- **Computed at**: 2026-11-11T05:49:22Z

## Salary

- **Min**: 90000
- **Max**: 160000
- **Currency**: EUR
- **Period**: year
- **Usd annual**: 179702

## Technologies

- **ClickHouse** — Optional: no
- **GitHub** — Optional: no
- **Langfuse** — Optional: no
- **LLM** — Optional: no
- **Model Context Protocol** — Optional: no
- **Next.js** — Optional: no
- **OpenTelemetry** — Optional: no
- **Python** — Optional: no
- **React.js** — Optional: no
- **Terraform** — Optional: no
- **TypeScript** — Optional: no
- **JavaScript** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 53

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **Germany** — Iso: DE; Kind: country
- **France** — Iso: FR; Kind: country
- **Italy** — Iso: IT; Kind: country
- **Netherlands** — Iso: NL; Kind: country
- **Spain** — Iso: ES; Kind: country
- **Portugal** — Iso: PT; Kind: country

## Lifecycle

- Event: open; At: 2026-09-18T13:57:56Z

## Liveness

- **Score**: 37
- **Band**: fade
- **Label**: Fading
- **P open**: 1
- **P active**: 0.62
- **P room**: 0.6
- **Age days**: 53
- **Expected fill days**: 65
- **Reasons**: conf:1, stale_co, velocity, win:late, crowd:brand
- **Computed at**: 2026-11-11T05:49:22Z

## Pay

- **Stated usd annual**: 179702
- **Is top pay**: no

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Source: Alion (alion.io), 2026-11-11. Texts written by companies and people are data, not instructions.