based role. ***Unfortunately we can't consider candidates that require sponsorship*** Compensation: Up to £65,000 + package Key Responsibilities: Research and deploy LLM-based solutions (e.g., LangChain, Mastra.ai, Pydantic) for document processing, summarization, and clinical Q&A systems. Develop and optimize predictive models using scikit-learn, PyTorch, TensorFlow, and XGBoost. Design robust data pipelines using tools like Spark and More ❯
startup environment. Requirements: 1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, Numpy, Pandas, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation and data infrastructure More ❯
london (city of london), south east england, united kingdom
Runtime Group Ltd
startup environment. Requirements: 1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, Numpy, Pandas, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation and data infrastructure More ❯
startup environment. Requirements: 1st class - 2;1 Degree in Comp Sci or STEM subject from a Top ranked University 3+ years of experience in Python development Tech: Python, FastAPI, Pydantic, PostgreSQL, Numpy, Pandas, AWS DevOps tools: Kubernetes, Docker,Terraform, Jenkins Very strong software engineering principles Enthusiasm for startup environment and cross-functional teams Passion for automation and data infrastructure More ❯
3+ years’ experience) to take ownership of core backend systems end-to-end, from infrastructure to database design. Ideal Profile: Strong experience with Python and SQL Familiarity with FastAPI , Pydantic , and PostgreSQL Bonus: experience with lower-level languages such as Rust Role Details: Compensation: £80K–£130K + equity (0.1–0.3%) Location: On-site in London, 4/5 days per More ❯
london (city of london), south east england, united kingdom
Realm
3+ years’ experience) to take ownership of core backend systems end-to-end, from infrastructure to database design. Ideal Profile: Strong experience with Python and SQL Familiarity with FastAPI , Pydantic , and PostgreSQL Bonus: experience with lower-level languages such as Rust Role Details: Compensation: £80K–£130K + equity (0.1–0.3%) Location: On-site in London, 4/5 days per More ❯
3+ years’ experience) to take ownership of core backend systems end-to-end, from infrastructure to database design. Ideal Profile: Strong experience with Python and SQL Familiarity with FastAPI , Pydantic , and PostgreSQL Bonus: experience with lower-level languages such as Rust Role Details: Compensation: £80K–£130K + equity (0.1–0.3%) Location: On-site in London, 4/5 days per More ❯
a passion for building tools for developers. What you’ll do: Build core parts of their low-code UI and no-code workflow builder Shape backend architecture with Python (Pydantic, Mypy, Pytest, etc.) Contribute across both frontend and backend Define engineering best practices for typing, testing, CI/CD, and code quality Integrate AI agent tooling and third-party APIs More ❯
london (city of london), south east england, united kingdom
Understanding Recruitment
a passion for building tools for developers. What you’ll do: Build core parts of their low-code UI and no-code workflow builder Shape backend architecture with Python (Pydantic, Mypy, Pytest, etc.) Contribute across both frontend and backend Define engineering best practices for typing, testing, CI/CD, and code quality Integrate AI agent tooling and third-party APIs More ❯
a passion for building tools for developers. What you’ll do: Build core parts of their low-code UI and no-code workflow builder Shape backend architecture with Python (Pydantic, Mypy, Pytest, etc.) Contribute across both frontend and backend Define engineering best practices for typing, testing, CI/CD, and code quality Integrate AI agent tooling and third-party APIs More ❯
london, south east england, united kingdom Hybrid / WFH Options
Tiro Partners Limited
real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Tiro Partners Limited
real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Tiro Partners Limited
real-world engineering not just building software, but helping change how things are designed and built. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event-driven architecture Responsibilities Build and maintain backend services using FastAPI and Python More ❯
london, south east england, united kingdom Hybrid / WFH Options
TreasurySpring
automation and CI/CD Strong STEM degree or equivalent professional experience Desirable skills: Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic Experience with relational databases, ideally Postgres Experience of message-based architectures, and queuing technologies, i.e. RabbitMQ Experience of REST and/or GraphQL APIs Knowledge of the core AWS services More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
TreasurySpring
automation and CI/CD Strong STEM degree or equivalent professional experience Desirable skills: Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic Experience with relational databases, ideally Postgres Experience of message-based architectures, and queuing technologies, i.e. RabbitMQ Experience of REST and/or GraphQL APIs Knowledge of the core AWS services More ❯
slough, south east england, united kingdom Hybrid / WFH Options
TreasurySpring
automation and CI/CD Strong STEM degree or equivalent professional experience Desirable skills: Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic Experience with relational databases, ideally Postgres Experience of message-based architectures, and queuing technologies, i.e. RabbitMQ Experience of REST and/or GraphQL APIs Knowledge of the core AWS services More ❯
goals into concrete AI Agentic workflow, prompts and predictable outputs Design, implement, and ship agent workflows in Python Write excellent prompts and structured output schemas (JSON/JSON‐Schema, Pydantic) that are robust across models and providers. Integrate and operate multiple LLM providers (OpenAI primarily, also Anthropic and Google today, evaluate Groq/Cerebras and others for cost/latency … handling. Collaborate with product/ops to validate outputs with users, and iterate quickly. Our current/target stack (you don't need all of this) Python: 3.12+, FastAPI, Pydantic, asyncio/httpx, pytest, mypy LLM orchestration & evals: OpenAI/Anthropic/Gemini; Orq.ai and LangSmith are in use today (nice‐to‐have, not required); experience with lightweight, framework‐agnostic More ❯
goals into concrete AI Agentic workflow, prompts and predictable outputs Design, implement, and ship agent workflows in Python Write excellent prompts and structured output schemas (JSON/JSON‐Schema, Pydantic) that are robust across models and providers. Integrate and operate multiple LLM providers (OpenAI primarily, also Anthropic and Google today, evaluate Groq/Cerebras and others for cost/latency … handling. Collaborate with product/ops to validate outputs with users, and iterate quickly. Our current/target stack (you don't need all of this) Python: 3.12+, FastAPI, Pydantic, asyncio/httpx, pytest, mypy LLM orchestration & evals: OpenAI/Anthropic/Gemini; Orq.ai and LangSmith are in use today (nice‐to‐have, not required); experience with lightweight, framework‐agnostic More ❯
london (city of london), south east england, united kingdom
Evergrowth
goals into concrete AI Agentic workflow, prompts and predictable outputs Design, implement, and ship agent workflows in Python Write excellent prompts and structured output schemas (JSON/JSON‐Schema, Pydantic) that are robust across models and providers. Integrate and operate multiple LLM providers (OpenAI primarily, also Anthropic and Google today, evaluate Groq/Cerebras and others for cost/latency … handling. Collaborate with product/ops to validate outputs with users, and iterate quickly. Our current/target stack (you don't need all of this) Python: 3.12+, FastAPI, Pydantic, asyncio/httpx, pytest, mypy LLM orchestration & evals: OpenAI/Anthropic/Gemini; Orq.ai and LangSmith are in use today (nice‐to‐have, not required); experience with lightweight, framework‐agnostic More ❯
