Build production-grade agentic AI systems using Python, modern LLM frameworks, orchestration tools, RAG pipelines, and evaluation/observability tools. The team solves critical real-world problems for manufacturing, utilities, aviation, and field operations. A small, high-calibre engineering team with genuine ownership.

Lead a ~132-person engineering org (5 direct reports) building financial services for Africa on Python/GraphQL, Postgres/Redis, Kotlin, Swift, TypeScript/React, GCP, Kubernetes, and Terraform—including AI-powered voice and digital agents handling 10M+ monthly interactions.

Build an MVP for a B2B AI engineering software venture at the intersection of enterprise data infrastructure, applied AI, knowledge systems, and CAE. You will work with LLMs, RAG, agentic workflows, knowledge graphs, backend architecture, ingestion pipelines, and containerized deployment. This is a hands-on CTO role where you personally own architecture, coding, and deployment before growing the engineering team.

You'll work with JavaScript, ElasticSearch, OpenSearch, MongoDB, Apache Kafka, EKS and Kubernetes on Ripjar's Labyrinth Screening SaaS platform, which automates detection of financial crime for banks and governments. This role leads technical decisions and architecture for scaling the platform.

Build features across Svelte/TypeScript front end and Python (FastAPI/Django) back end. Tab is a profitable YC-backed travel fintech processing thousands of hourly payments for 100,000+ global tourism businesses.

Design multi-agent systems and LLM pipelines using LangGraph, Strands, Python, AWS Bedrock, ECS Fargate, Lambda, and Step Functions. Build agent topologies, evaluation frameworks, and MCP integrations for AMPLIFYR.ai’s production brand analytics platform that leverages GPT, Claude, and Perplexity.

You will build multi-agent systems, complex RAG pipelines, and tool-use workflows using frameworks like LangGraph and Pydantic AI, integrating with Git, Jira, and Confluence APIs. The role designs and deploys autonomous "AI Change Agents" that perform automated risk assessments and policy compliance evaluations for operational risk, cyber, and safety stakeholders.

Work with Java, Spring Boot, Hibernate, microservices, REST APIs, PostgreSQL/Oracle, and testing tools (JUnit, Cucumber, Wiremock, Mockito) in an agile, DevOps environment. You will build and improve the prepaid payment platform for Edenred PayTech, delivering features across the full development lifecycle.

Samsara★3.6 (32)· London

Work with Golang, TypeScript, React, GraphQL, and React Native. As a new grad, you’ll build backend infrastructure for an IoT platform, full-stack web features, mobile app infrastructure, or embedded software that runs on Samsara hardware.

Build and ship end-to-end features using TypeScript, Vue.js/Nuxt.js, Node.js, Docker, AWS, MySQL, and AI-assisted tools like Claude. You’ll own infrastructure and deployment for &Dine’s online food marketplace connecting independent makers with customers. Join a lean engineering team of four.

Founding Product Platform Engineer working full-stack with Python, FastAPI, React, TypeScript, and SQL (BigQuery/Snowflake). Build the platform layer for a decision platform that helps high-stakes teams explore outcomes and understand uncertainty, translating complex AI workflows into repeatable B2B products. As the first dedicated product engineering hire, you will architect platform foundations including auth, permissions, and APIs.

You'll work with Python, LLM frameworks (LangChain, LangGraph), MLflow, and cloud ML platforms (GCP Vertex AI, AWS SageMaker) to build models and pipelines for Compare the Market's AI platform, powering insurance pricing, customer predictions, and personalisation.

Deloitte★3.9 (14k)· London

You will work with Azure (ADF, Synapse, Fabric, ADLS Gen2, Cosmos DB, AI Search), Python, SQL, and CI/CD/DevOps. You join Deloitte's Digital Innovation team to build end-to-end data pipelines and enable AI/GenAI use cases for Tax & Legal stakeholders.

You'll work with React, TypeScript, Node.js, Next.js, GraphQL, Postgres, and AWS on an AI-native platform that empowers private investors to manage their portfolios.

Senior Full Stack Engineer working with Python (Django, FastAPI), TypeScript, React, Astro, Svelte, PostgreSQL, AWS, Terraform, and frontier AI models via Amazon Bedrock. Build and scale AI products within small cross-functional teams, owning everything from infrastructure and APIs to user-facing interfaces. Hands-on role with significant ownership, including mentoring and shaping technical direction from discovery to deployment.

You will work with Svelte, TypeScript, Python, FastAPI, Django, PostgreSQL, and AWS. Tab is a YC-backed London startup building a payments and discovery platform for independent tourism businesses. You will join a lean team of nine as one of the first developers.

Lead projects developing scalable web apps for global financial clients using React, TypeScript, modern CSS (Flexbox/Grid, SASS, Material UI), Redux, Webpack, and Jest/Mocha. You will mentor engineers, drive front-end strategy, and work with DevOps/CI/CD and containerisation (Docker/Kubernetes).

You will work with Python, FastAPI, PostgreSQL, ClickHouse, OpenAI, Anthropic, and production APIs. The team builds the Bloomberg of Private Markets, providing AI-powered discovery of investment opportunities for 300+ VC and PE firms. You will build backend infrastructure powering new AI features.

Full stack developers will use Python, Django, HTML5, CSS3, SASS/LESS, JavaScript, React/Angular, AWS, Ansible, and PostgreSQL. The company builds blockchain technology for the financial industry, and the role involves scaling an existing platform within a tight-knit team.

JPMorgan★3.9 (20k)· London

This role involves building the native iOS (Swift) and Android (Kotlin) mobile platform for Chase UK, a digital bank. Responsibilities include owning mobile architecture, CI/CD pipelines, testing, and mentoring iOS and Android teams apeex. The work entails collaborating with backend, product, and design teams using REST and GraphQL APIs.

Snowflake★3.7 (31)· London

You'll work with Python, SQL, LangChain, Hugging Face, PyTorch, RAG, and modern data architectures (warehousing, lakes, lake house). As a Solution Engineer, you'll present Snowflake's AI Data Cloud, deliver demos and proof of concepts, and collaborate with sales and channel partners to drive adoption.

Snowflake★3.7 (31)· London

Work with Python, SQL, and modern AI/LLM ecosystems including RAG, LangChain, Hugging Face, and PyTorch, supporting data warehousing, data lakes, and lake house architectures. As a Solution Engineer at Snowflake, you drive sales cycles, deliver demos, and run enterprise Proofs of Concept for the AI Data Cloud.

Work with Google Cloud, Kubernetes, serverless, Terraform, Node.js (TypeScript), and CI/CD pipelines. You'll join the Platform Engineering team at Freetrade, an investing platform, to treat the platform itself as a product—building the foundational infrastructure, observability, and security that Freetrade's own engineers rely on to ship.

Verisk★3.5 (361)· London

Principal Engineer using TypeScript, JavaScript, Angular, Node.js, Azure or AWS, microservices, and CI/CD with Docker and Kubernetes. Builds cloud-native, large-scale software for Verisk's data, analytics, and technology platform that serves the global insurance industry. Provides technical leadership across multiple teams and products.

You will work with LLMs, Google Cloud, and Python. You will develop and deliver LLM-based regulatory change detection solutions on Google Cloud for banking compliance technology.