The intern will use Python (Pandas, NumPy), AWS (Kubernetes, Kafka), APIs, Snowflake, Streamlit, Git, Docker, Helm, and CI/CD. They contribute to front office software tools for real-time trading, market data analytics, and visualization, and work with the commercial trading team to optimize pricing models and trading workflows. The role is with Castleton Commodities International, a global energy commodities merchant and infrastructure investor.

Lead the design and evolution of an enterprise data platform using Azure and Snowflake, with a focus on DataOps, CI/CD, and DevOps practices. This senior leadership role oversees teams across platform engineering, quality, and governance for a financial services organisation.

Work with Svelte/TypeScript, Python (FastAPI, Django), PostgreSQL, and AWS. Tab is a YC-backed London travel fintech building a payments platform for 100,000+ global tourism businesses, processing thousands of real-time transactions per hour. You will develop features across the stack and collaborate in a tight-knit engineering team.

You will own back-end infrastructure and data strategy at a seed-stage startup building gas sensors and AI that predict food freshness. You will build scalable GCP pipelines, design APIs with Python and FastAPI, and develop full-stack solutions for a mission-driven team of under 20.

You will work with Python, FastAPI, LLMs, RAG architectures, chain-of-thought prompting, and multi-agent tool use. The Science team builds cognitive architectures to create synthetic populations for behavioral prediction, using LLMs to simulate human responses with 95% accuracy.

You'll work with Java, Spring Boot/Micronaut, Kubernetes/Docker, AWS, and Kafka/message-driven architectures, building clean, tested code for NatWest Boxed's technology product. As part of a cross-functional mission team, you'll collaborate with stakeholders, support junior engineers, and act as a subject matter expert.

Work with Svelte, TypeScript, Python (FastAPI/Django), PostgreSQL, and AWS. You'll build and scale a payments platform processing 100 currencies and a discovery engine listing 100,000+ tourism businesses. Join a profitable, lean team of nine as one of the first developers.

You'll work with HTML, CSS, JavaScript/TypeScript, React or Vue, Git, Jira, Figma, automated testing, and AI tools like Claude Enterprise, in an agile model. As an AI-forward web developer embedded in SharkNinja's D2C business, you'll fix bugs from the ticket backlog and bridge Design and Engineering to buildable requirements. No team size is stated.

Senior Data Engineer role using SQL, Python, Java, Airflow, dbt, Spark, BigQuery, Snowflake, GCP, AWS, and DOMO. You will design and maintain scalable data pipelines for web analytics, CMS, ad tech, and social media, supporting analytics and reporting across Independent Media’s portfolio of digital news brands.

FDM Group★2.9 (270)· London

Snowflake, Azure Data Factory, SQL, Power BI, Git, CI/CD, and DevOps practices. This role designs, develops and optimises a Snowflake-based enterprise data platform for a London Market insurance client, supporting underwriting, claims, finance and portfolio management.

You will work with SQL, Python, AWS or Azure, Snowflake, Databricks, infrastructure as code, and CI/CD, plus AI tools like RAG, feature stores, and MCP. As a Data Architect on the AI Advisory team, you own data design across client engagements for a CFO advisory firm, defining architecture to support reliable AI, analytics, and reporting.

You will work with Python/R, SQL, pandas, numpy, Robyn, Meridian, PyMC, Bayesian and regression models, and MMM pipelines. You will join the Marketing Analytics team to measure and optimize marketing investments by owning the Marketing Mix Modelling pipeline and translating statistical insights into growth strategies.

You will administer support tools like Intercom or Zendesk, configure AI-driven support experiences (chatbots, agent assist, workflow automation), and build dashboards using SQL/BI tools. Xapien provides AI-driven due diligence and risk intelligence, and you will optimize Support workflows and automation to enable the customer support team at scale.

The role builds and maintains the automation layer for ElevenLabs' influencer/creator marketing program, covering discovery, onboarding, contracts, content tracking, reporting, invoices, and payment alerts. Tech stack includes Zapier, Make, n8n, Python or JavaScript, APIs, webhooks, SQL, plus integrations with social platforms, CRM, finance, Slack, and e-signature tools.

Design, build, and deploy ML models using Python, TensorFlow, PyTorch, Scikit-learn, and LLMs with LangChain, RAG, and vector databases (Pinecone, FAISS). Deploy on AWS, Azure, or GCP, developing REST APIs with FastAPI/Flask. This role is with Aivra Health, a health technology company solving real-world business problems.

You'll work with Python, SQL, and production ML systems—feature pipelines, model registries, batch/real-time inference, and A/B tests—building recommendation, uplift, and churn models. The CRM tribe at Wise, a global money-movement company, uses these to recommend the right products to customers at the right moment across the customer lifecycle.

Quantiphi★3.3 (60)· London

Architect MLOps strategy and implement enterprise-grade ML/LLM pipelines using AWS SageMaker, EKS, Lambda, API Gateway, and CI/CD tools. Design hybrid MLOps/LLMOps workflows with governance, monitoring, and container-orchestrated platforms. Lead cross-functional delivery for an AI-first digital engineering company serving Fortune 1000 clients.

Work with Cisco and Arista platforms, including VxLAN, EVPN, Meraki, and traditional enterprise networking, plus automation and infrastructure as code. You'll engineer enterprise network solutions for NatWest Digital X, ensuring security, resilience, and operational requirements.

The role involves iOS development using Swift, Java, mobile architecture patterns, Test-Driven Development, and automated mobile testing for financial applications. The work is within Persistent Systems, an AI-led digital engineering and enterprise modernization partner. This position includes leading a team and coaching employees, though team size is not specified.

You will work with Java, Apache Kafka, Agile methodology, and full-stack development to build, test, and debug Java-based applications. You will join Genpact, an advanced technology solutions company that uses process intelligence and AI to help global enterprises transform at scale.

Luxoft★4.5 (669)· London

Work with Python, FastAPI, AWS (eventing, queues, serverless), Git, CI/CD, vector databases, RAG, and LLMs (OpenAI, Azure OpenAI, Anthropic). Build an Agentic AI solution to generate investment insights from sales and research materials, reducing client meeting prep time. Also use React (TypeScript) for UI and possibly AgentCore, AWS Neptune, API Gateway.

Use React Native (iOS/Android) with Ruby on Rails, Postgres, and JSON APIs; work with TypeScript, Expo, Jest, and Git. You will build the platform managing end-to-end installation of home energy solutions for BOXT and E.ON Next. As technical anchor, you mentor junior engineers and lead mobile architecture.

You will work with Node.js/TypeScript, Ruby/Rails, Nuxt, AWS CDK, serverless event-driven architecture, and the Salesforce platform. As part of the “In Life” squad, you will maintain back-end services, iterate on Digital Renewals customer journeys, develop quoting tools, and build batch jobs.

Work with C++, Python, kdb, SQL, C# and .NET to develop analytics libraries and pricing models using Monte Carlo Methods and PDE solvers. This Vice President role on Citi’s Cross Asset XVA and Capital Analytics team builds and supports quantitative models for trading and risk-management.

You’ll use JavaScript, React, Python, Go, Grafana, GCP, Docker, and Kubernetes, alongside APIs and LLM integrations. The role provides technical support for Xapien’s AI-driven due diligence platform, troubleshooting issues and collaborating with Engineering, Solutions, and Product teams to improve developer experience.