Design and maintain automated test suites using C

Imperial College London★4.2 (238)· London

You will work with Python, PyTorch, NumPy, SciPy, Pandas, discrete-event simulation, Anaconda and Jupyter to develop performance, cost and reliability models for distributed Foundation Model inference across Cloud, Edge and IoT tiers as part of the f-inference project. This role is in the Department of Computing at Imperial College London.

You will work with Claude, Claude Code, MCP, LangChain, LangGraph, and multi-agent frameworks to build production-grade automations and AI agents. The team designs tools for 2,500+ employees at M-KOPA, a fintech providing affordable financial and digital products across Africa. You'll lead three AI Ops Engineers and own delivery and team growth.

You will work with Generative AI, LLMs, OpenAI, LangChain, Hugging Face, PyTorch, TensorFlow, FastAPI, Streamlit, and cloud platforms (AWS/GCP/Azure). You will design and deploy GenAI solutions—including RAG pipelines, fine-tuning, and prompt engineering—for enterprise use cases such as customer service, document automation, and knowledge retrieval on the Data Science Team at a global data and AI company.

A Core AI Engineer at LSEG designs, develops, and deploys enterprise-grade AI products and services, building agentic workflows, RAG solutions, and scalable integrations with LLMs and vector databases. The role leads technical implementation across AI initiatives, mentoring engineers and defining solution architecture. The team is transforming how LSEG operates by using AI to improve service resilience, automate workflows, and accelerate engineering productivity.

Lead a team building scalable cloud-hosted systems using Java, Python, ReactJS, AWS, and Google Cloud Platform. This engineering manager role owns technical stewardship for product mission teams within NatWest Boxed, a high-performing product engineering organisation. Direct reports include software and quality engineers across empowered squads.

Works with Apache configs, CLI tools, Chrome DevTools, Lighthouse, PageSpeed Insights, WebPageTest, Jira/Azure DevOps, HTML, CSS, JavaScript, and structured data. Leads Croud's Web Experience and Technical SEO capability, auditing and optimizing client sites for traditional search, AI summaries, and LLM interfaces, including migrations and

You’ll work with JavaScript, TypeScript, React, Next.js, Node.js, Python, WebGL/Three.js, Unity/Unreal/TouchDesigner, Generative AI/LLMs, ComfyUI, vector databases, and AWS/GCP/Azure. WPP Production is a global content production company delivering multi-channel content systems at scale. As technical leader, you’ll mentor and line-manage junior developers, though team size isn’t specified.

You will work primarily with JavaScript/TypeScript, React, and AWS, architecting full-stack apps alongside Node, Webpack, MobX, Redux, Spring Boot, and Kafka. As part of the Transaction Banking Digital Engineering team, you will lead the design and implementation of UI components for a scalable, cloud-based platform providing corporate cash management solutions via APIs, portals, and SWIFT. You will manage a group of engineers, contribute to the product roadmap, and drive engineering culture.

You will work with Python (FastAPI), AWS, LLMs (OpenAI, Gemini, Anthropic), RAG, agentic workflows, MCP servers, and CI/CD pipelines. This player-coach role leads a squad building AI-driven solutions for BCG’s internal products and processes, delivering GenAI applications while cultivating engineering talent.

Platform Engineer role at Freetrade, working with Google Cloud infrastructure, Kubernetes, serverless, Terraform, and Node.js (TypeScript). The Platform Engineering Team builds foundational CI/CD pipelines, logging, observability, and security systems to support product, frontend, and data engineering teams.

Build and streamline CI/CD pipelines using GitLab CI/CD, Helm, ArgoCD, and Terraform. Containerise and migrate workloads into Kubernetes and OpenShift, automating with Bash, Python, or Go across hybrid cloud environments (AWS, IBM Cloud, GCP, or Azure). You will complete a free 16-week course to develop mid-level skills before a potential client role.

You'll work with Python, Django/DRF, FastAPI, Postgres, Redis, Celery/RQ, RabbitMQ/SQS, Docker, K8s/ECS, AWS, OpenTelemetry, and SigNoz/Grafana. The company makes software that helps patients and clinics diagnose, plan, and visualize physical improvements. No team size is specified.

Develop NatWest Boxed, a banking technology product, using Java, Spring Boot/Micronaut, Kubernetes/Docker, AWS, and Kafka/event sourcing. As a technical lead, you'll support junior engineers on core cross-functional mission teams. The listing doesn't specify team size.

The role involves Python, pandas, OOP, SQL (PostgreSQL, Snowflake), CI/CD pipelines, git/GitHub, and GitHub Copilot, with JavaScript, Flask, or FastAPI helpful. You'll develop in-house fund management tools for the Index team at L&G Asset Management, analyzing portfolio performance and supporting data pipelines. L&G is a major global asset manager and UK financial services group.

Millennium Management★3.8 (21)· London

Python, Linux, SLURM, Kafka, Solace, Pulsar, Memcache, Redis, AI RAG/MCP agents, Datadog, ELK, SQL, NoSQL, Kdb. You will build real-time portfolio management and intraday analytics platforms for Millennium’s front-office EQRT Services team, supporting strategy research, backtests, and risk/factor analytics.

Work with JavaScript, React or Svelte, D3, QGIS, Mapbox, Leaflet, R or Python, SQL, Git and AI models. Build interactives, calculators and data-led stories for The Times and The Sunday Times’ data journalism team.

Lead engineers on Canada Life’s Digital Product Team build user-facing products with modern front-end frameworks, CI/CD pipelines, and Azure-hosted solutions, specialising in UI/UX, accessibility (WCAG 2.2 AA), and front-end performance. They lead cross-functional squads through the full lifecycle, coaching engineers and setting technical direction for customer-centric digital experiences.

You will work with TypeScript, React, HTML5, CSS, JavaScript (ES6+), FDC3, REST/WebSocket APIs, OpenFin, Chromium, Electron, Kafka, Solace, Tibco, Jenkins, and AI-assisted development tools. The team delivers pricing solutions for the Foreign Exchange (FX) business, building high-quality trading GUIs for internal and external traders. As a Vice President, you provide technical leadership and mentor junior engineers on a globally distributed team.

You'll work with Python, SQL, ETL/ELT, FastAPI, and AI/LLMs to build a mission‑critical Data Migration Platform that connects to legacy CRMs and onboard financial agencies at scale.

Write Python and FastAPI to build a real-time intelligence platform for private markets, used by venture capital and private equity firms to analyze live data and make faster investment decisions.

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.

You'll work with Python or Go, API gateways (Kong preferred), LLM providers (Anthropic, AWS Bedrock, OpenAI), RBAC/OIDC, and MCP. The AI Platform Engineering team builds and runs the infrastructure connecting engineers and client workloads to multiple LLM providers, including the inference control plane, orchestration, lifecycle tooling, capability marketplace, and governance controls.

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.