186 jobs
eFinancialCareers London
Joining a three-person storage team, you will design, deliver and support all storage and backup systems, ensuring 24x365 availability and capacity. The role uses DevOps and infrastructure-as-code practices with Python, PowerShell, Terraform or Ansible, plus enterprise products such as Pure Storage, Rubrik, VAST and Azure, working closely with server, database and research teams.
eFinancialCareers London £1,100 – £1,200 pd
Hands-on KDB+/q engineering role in a front-office technology team supporting electronic trading across Fixed Income markets. You will build real-time pricing, trading and risk applications, maintain data pipelines and APIs, and work directly with traders and quants on high-performance time-series platforms, including production support and releases.
eFinancialCareers London
Partners with portfolio managers, IT and data engineering to assess data needs across equities, FX, rates, fixed income and credit, then sources and evaluates market, reference, pricing and alternative datasets for systematic strategies. Leads complex data projects, compares vendors and negotiates agreements, and advises on data operations such as cost allocation, cataloguing and delivery infrastructure.
eFinancialCareers London
Owns a greenfield Snowflake-based enterprise data platform for a private markets investment firm, covering architecture, ingestion pipelines and governance. Integrates portfolio, fund administration and market data into governed datasets, with hands-on Python, SQL and Azure work alongside senior stakeholders.
eFinancialCareers London £70,000 – £106,000 pa
Designs and builds a greenfield data platform in a hybrid Azure and on-prem environment, creating pipelines, ETL processes and data models while migrating legacy capability. Works within a circa 100-person EMEA Data & Analytics Technology team, mentoring peers and aligning delivery to platform strategy. Requires at least two days a week in the London office.
eFinancialCareers London £700 pd
Hands-on role building AI-powered applications, intelligent workflows and machine learning solutions in Python, taking them from concept through to enterprise production deployment. Involves LLMs, agentic frameworks, AI orchestration, model evaluation, testing and monitoring, working with technical teams and business stakeholders to drive AI adoption.
eFinancialCareers Belfast
Builds and maintains Java/J2EE microservices and RESTful web services for Citi's Risk Data Team within the Institutional Data Platform, working on high-performance data pipelines and aggregation engines. The role involves Core Java multi-threading, Spring Boot, SQL optimisation, CI/CD and code quality tooling, plus leading and mentoring a team of developers. Hybrid working in Belfast with up to two days per week from home.
eFinancialCareers London £600 – £700 pd
Shapes future-state architecture across a data platform landscape, leading build vs. buy assessments and providing strategic direction to delivery and technology teams. Supports the transition from current to target-state architecture, resolving conflicts and dependencies while weighing low-code/no-code and AI trends. Requires banking and enterprise data platform expertise.
eFinancialCareers Belfast £45,000 – £60,000 pa
Hands-on role building and maintaining ETL/ELT pipelines, data warehouses and data lakes, with a focus on Microsoft Fabric, SQL Server, SSIS and SSRS, plus tools like Fivetran and Alteryx. You'll take ownership of the data engineering function, support data migration from legacy systems and work closely with analysts, scientists and business stakeholders.
eFinancialCareers London £92,000 – £138,000 pa
Hands-on AI Solutions Architect role taking end-to-end ownership of AI solution design, from use case intake through architecture, governance approval and production delivery. Works across Microsoft 365 Copilot, Copilot Studio, Power Platform, Azure AI and GCP, driving designs through Solution Design Authority and AI governance in a regulated banking environment.
eFinancialCareers London
Designs, builds and optimises scalable Snowflake data solutions for Risk, Finance, Treasury and Regulatory reporting in a financial services environment. Hands-on delivery covers ELT/ETL pipelines, dbt transformation frameworks, Python automation, data modelling and performance tuning, alongside solution architecture and stakeholder workshops.
eFinancialCareers London
Joining the Vendor Data Group, you will collaborate with a trading team to build and maintain mission-critical ETL/ELT data integration pipelines and tools for alternative commodity and macro data. The role involves developing scalable data architectures, enhancing data processing and optimising workflows in a real-time environment, with a strong emphasis on data accuracy and solving difficult technical problems.
eFinancialCareers London
Engineer the availability, quality and performance of real-time data feeds powering intraday short-term power trading, integrating market, grid, weather and internal trading system sources. Build ETL/ELT pipelines handling millions to billions of records using optimised SQL, Python, Pandas and Numpy, supporting systematic trading, back-testing and risk management in a high-frequency environment.
eFinancialCareers London
Builds real-time trading applications, analytics platforms and data pipelines for a European Intraday Power desk, sitting between technology and trading. The role focuses on short-term power initiatives, enabling the front office to test and execute systematic strategies and manage risk in fast-moving markets.
