Senior Python Backend Engineer - ML Infrastructure
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Direct message the job poster from Heart Mind Talent
Senior Talent Partner/Sourcer | Ex- Meta | Ex- Spotify
We’re building the future of AI-powered legal tech — including one of the world’s first AI lawyers, built on a fine-tuned LLM's and novel AI research
We’re looking for a Senior Software Engineer to help us bring cutting-edge machine learning into the hands of real users at scale. You’ll be part of a mission-driven team using AI to make legal help radically more accessible.
Backed by top-tier VCs and a substantial Series A funding round, we’re growing fast — and we want brilliant engineers to grow with us.
What you’ll be working on
- Build & Improve Backend Systems: Work with Python (FastAPI, Pydantic) to develop robust APIs and services that interface with LLMs.
- Develop & Maintain Scalable Infrastructure
- Long-Running Workflows & Orchestration
- Real-Time Communication Infrastructure
- Document Storage & Retrieval
- Build Data Pipelines
- Infrastructure Decision-Making
You should have
- Strong Backend Development Skills: Proficiency in Python, FastAPI, Pydantic.
- Infrastructure Expertise: Experience with AWS services (Lambda, S3, ECS, EventBridge, RDS, OpenSearch) and Terraform.
- Event-Driven Systems Knowledge: Experience designing and implementing event-driven architectures (SNS/SQS, Kafka, Redis Streams, etc.).
- Orchestration & Workflows: Experience with long-running workflow solutions like Ingest, Step Functions, Temporal, or Airflow.
- Data Engineering Mindset: Experience designing scalable ETL pipelines and working with structured/unstructured data.
- Knowledge of Vector Databases
- Ship daily – we release fast and iterate even faster
- Empathise with users – we build for lawyers and clients with deeply human problems
- Strive for excellence – we want to build a generational company, and that means high standards
- Experiment and learn – we’re on the frontier of applied AI, and we’re always testing new ideas
- Remote-friendly
Seniority level
- Mid-Senior level
Employment type
- Full-time
Job function
- Engineering and Research
Industries
- Information Services and Technology
- Information and Media
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- Location:
- London, England, United Kingdom
- Salary:
- £125,000 - £150,000
- Job Type:
- FullTime
- Category:
- IT & Technology