Barings★3.8 (43)· London

This Senior Associate role on the Quantitative & Risk Analytics team uses Python, SQL, Excel, and PowerBI to build and maintain quantitative ESG overlays for Barings’ public and private portfolios. You will produce ESG analytics and reporting, develop portfolio overlay strategies for decarbonization mandates, and partner with data vendors and internal teams to improve data quality.

NatWest Group★3.7 (1.2k)· London

Leading a team building cloud-hosted, event-driven microservices at NatWest Boxed, you will manage software and quality engineers across empowered squads while working with AWS, Google Cloud Platform, Java, Python, JavaScript, ReactJS, AngularJS, Kafka, Hadoop, PostgreSQL, Snowflake, and GitLab.

Ipsos★3.6 (1.8k)· London

You'll support employee experience projects using platforms like Qualtrics, Viva Glint, Perceptyx and Medallia, while leveraging AI tools. Ipsos Karian & Box's consulting team helps organisations measure and improve engagement, culture and leadership through employee research and listening technology.

The Football Association★4.3 (42)· London

Lead a team of Grassroots Data Analysts using Power BI, Excel, SQL, and DAX to build Place Profiles and integrate external datasets (ONS, health, demographic, local authority) for the FA's Grassroots Division. You will own the data & intelligence roadmap, drive adoption of analytics tools, and investigate AI to enhance insight delivery across the grassroots network.

Allianz★3.8 (3.4k)· London

Use Docker, Kubernetes, Terraform, Azure, Azure DevOps, and Python to build and maintain production-ready data and ML systems, including real‑time API endpoints serving 10M+ daily requests. You will join a small stream‑aligned agile team that develops cloud‑based infrastructure and automated deployment pipelines.

EXL Service★3.7 (2k)· London

You will work with Generative AI tools (OpenAI, LangChain, Hugging Face, Vertex AI, Bedrock), LLMs, vector databases (FAISS, Pinecone, ChromaDB), and Python frameworks (Transformers, PyTorch, scikit-learn). As part of EXL’s Data Science Team, you’ll build and deploy GenAI solutions for enterprise use cases such as customer service, document automation, summarization, and knowledge retrieval.

Work with Python, large language models, AWS services, Claude, Docker, and Linux to build AI agents and cloud solutions. You'll join Cloudscaler, a consultancy delivering AWS transformations for government, defence, and enterprise clients. This graduate entry role starts in a cohort with structured mentoring and certification support.

HCLTech★3.7 (11k)· London

You will work with Python, Go or Java, TypeScript, REST/gRPC, Gemini 3.0, Vertex AI, BigQuery, Vector Search, AlloyDB, Apache Beam/Dataflow, Agent Development Kit, LangGraph, and GKE. The role deploys Gemini Enterprise Agent Platform, designs multi-agent systems, and builds RAG pipelines to integrate with legacy APIs and ERP systems. Clients are in FS, RCPG, LSH, and manufacturing domains.

Stanley David and Associates★2.3 (3)· London

Work with Snowflake, GitHub, Octopus Deploy, SQL, Python, PowerShell, Shell scripting, and cloud platforms (Azure, AWS, or GCP). Lead design, implementation, and deployment of cloud-based data platforms, including CI/CD pipelines and ELT/ETL processes. Mentor developers and provide technical leadership across project teams.

Sonar★5.0 (2)· London

You will work with Python, core ML frameworks, and post-training techniques including GRPO, PPO, RLVR, SFT, PEFT, and preference/safety alignment (Rust or SonarQube flagship languages are a plus). You will join a cross-disciplinary team developing advanced products that post-train models to power enterprise agentic coding practices, ensuring code meets enterprise standards.

Marqeta★3.6 (8)· London

Use REST APIs, SFTP, SQL, and Datadog to lead technical onboarding and configuration of Marqeta’s card issuing and payments platform for new customers. Guide customers through API integration and collaborate cross-functionally with product and engineering teams.

Croud★4.4 (14)· London

Leads technical SEO and Web Experience, optimising client websites for search and AI chat engines using HTML, CSS, JavaScript, Chrome DevTools, Lighthouse, PageSpeed Insights, WebPageTest, Apache configs, CLI tools, Jira/Azure DevOps, and structured data. Oversees site migrations, platform rebuilds, and technical roadmaps as Croud’s senior technical authority.

You’ll work with JavaScript, TypeScript, React, Next.js, Node.js, Python, WebGL, Three.js, Unity, Unreal Engine, TouchDesigner, LLMs, AI agents, ComfyUI, vector databases, AWS/GCP/Azure, and Figma. At WPP Production, a global content production company, you’ll rapidly prototype and scale interactive digital experiences, bridging software engineering and creative design. You will line-manage and mentor mid-level and junior developers.

Verisk★3.5 (361)· London

Use TypeScript, JavaScript, Angular, Node.js, Azure or AWS, and microservices to design and build large-scale, cloud-native software solutions for Verisk’s insurance analytics platforms. You will shape technical architecture across multiple products and teams.

You'll work with Python, Go, React, TypeScript, Docker, Kubernetes, APIs, model-serving systems and distributed-inference workloads. Partnering directly with customers, you'll architect, build and deploy production AI/ML systems on Lightning's end-to-end platform, covering inference infrastructure, distributed systems and AI workflows.

Bloomberg★3.8 (1.1k)· London

You will work with Go, C++, Python, Vitess, MySQL, MyRocks, RocksDB, and InnoDB. The team builds Bloomberg’s distributed OLTP storage platform, operating over 10,000 MySQL shards to serve critical financial data and building custom read/write APIs. The role covers the entire storage fleet at thousands-of-shards scale.

Work with RPA platforms (UiPath, Automation Anywhere, NICE), machine learning, chatbots, content intelligence tools (ABBYY), and languages such as C#, .NET, Java, Python, SQL, HTML, or JavaScript. The company focuses on robotic process automation, delivering solutions for clients primarily in the UK, US, and Europe.

Design, develop and maintain software solutions using C#, Java, C++ or Python with Agile methodologies. No specific product or project is described; the company builds high-quality software applications.

You will work with AWS, Python, Kafka, Kubernetes, gRPC, Terraform, CloudFormation, Docker, and CI/CD tools like Jenkins or GitHub Actions. AeroVect builds autonomous ground-handling systems for airlines, and you will own the cloud infrastructure and data pipelines that power their real-world deployments.

Millennium Management★3.8 (21)· London

You will work with Python, Linux, SLURM, Kafka, Solace, Pulsar, Memcache, Redis, Datadog, ELK stack, SQL, NoSQL, Kdb, Docker, and Kubernetes. The EQRT Services team develops high-performance real-time analytics and portfolio management platforms for intraday trading, risk assessment, and backtesting.