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
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Location:
London
Salary:
£125,000 - £150,000
Job Type:
FullTime
Category:
IT & Technology

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