Senior Backend Engineer — Data Platform & AI Agents at Jus Mundi

✨ The Stack take on this Jus Mundi job

• 🏢 This is Jus Mundi's only job here right now
• 🛂 Visa: Talent passport. EU Blue Card salary: €59,373 a year (1.5 times the average salary) guide
• 💡 No salary shown. Ask Jus Mundi if it is above the minimum.

Updated 2026-11-03, from our data and official sources.

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About the role

Responsibilities:
- Design and implement agentic ingestion pipelines that discover, acquire and normalize documents from many heterogeneous sources.
- Build and own the transactional catalog and its public API, modelling evolving legal documents with provenance and confidence metadata.
- Implement document processing: OCR, extraction, multilingual text processing, metadata enrichment and versioned derived data.
- Ensure quality at scale via test sets, confidence thresholds, regression tracking and measurable production validations (no manual gate).
- Deploy, instrument and operate services: logging, metrics, traces and tooling to reconstruct a document’s history end-to-end.
- Collaborate closely with Legal Content, Search, AI and Product teams to align correctness and consumer needs.

Requirements:
- 5+ years backend engineering experience with strong production Python skills.
- Practical experience with LLMs/agent orchestration and integrating them into backend workflows (not research-only).
- Deep knowledge of Postgres (including JSONB), data modelling for heterogeneous schemas and transactional systems.
- Solid system architecture and DevOps skills: Kubernetes, CI/CD, observability, scalability and failure-mode thinking.
- Familiarity with OCR, multilingual processing and building regenerable derived data pipelines.
- Strong ownership mindset: able to design APIs, operate services in production and work cross-functionally on product-quality requirements.

Responsibilities

You will build and own the agentic data platform responsible for acquiring, processing, and enriching legal documents. This involves designing transactional APIs, managing document ingestion pipelines, and ensuring high-quality data output for downstream AI and search services.

Requirements

The role requires 5+ years of experience in backend engineering with strong Python skills and hands-on experience in agentic or LLM-based systems. Candidates must demonstrate deep knowledge of Postgres, system architecture, and a strong DevOps mindset for operating production services.

Key skills

• Python — in 1173 other listings on The Stack
• Backend engineering — in 125 other listings on The Stack
• LLM orchestration — in 8 other listings on The Stack
• Postgres — in 69 other listings on The Stack
• Data modeling — in 182 other listings on The Stack
• Agentic systems — in 26 other listings on The Stack
• API design — in 191 other listings on The Stack
• Kubernetes — in 569 other listings on The Stack
• CI/CD
• System architecture
• OCR
• Data processing
• Async I/O
• Cloud infrastructure
• DevOps

On The Stack (as of 2026-11-03)

• This is Jus Mundi's only listing on The Stack.
• 25 visa-sponsored jobs in France on The Stack, posted in the last 60 days.
• 68 visa-sponsored backend engineer jobs in Europe on The Stack, posted in the last 60 days.

Frequently asked questions about Jus Mundi

Is this Senior Backend Engineer — Data Platform & AI Agents role still open?

It was posted on 2026-08-06. Listings more than 30 days old may no longer be active, so check Jus Mundi's site before applying.

Does Jus Mundi offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Jus Mundi's site.

Where is this role located?

The listing gives the location as France. It is marked on-site.

What skills does this role ask for?

The listing names: Python, Backend engineering, LLM orchestration, Postgres, Data modeling, Agentic systems, API design, Kubernetes, CI/CD, System architecture, OCR, Data processing, Async I/O, Cloud infrastructure, DevOps.