JPMorgan★3.9 (20k)· London

Cisco VPN infrastructure, Cisco ASA, ISE, CSM, Firepower/FDM, FTD/FMC, SASE, ZTNA, routing (BGP/OSPF/EIGRP), security protocols (IPsec/SSL/TLS/RADIUS/TACACS+), and automation tools (Ansible, Python, NSO, DNA Center, Terraform, Prime Infrastructure). You will design, implement, and operate enterprise VPN services enabling secure remote connectivity for the global workforce within the End User Compute organization at JPMorgan Chase.

You'll work with Microsoft Fabric, PySpark, Python, T-SQL, DAX, Infrastructure as Code, Git, and Azure DevOps. You'll design, build, and maintain data pipelines, lakehouses, and data warehouses within Fabric to drive business intelligence and analytics.

You'll build a modern Lakehouse data platform using Microsoft Fabric and Azure Data Services, with Medallion-architecture pipelines, dimensional data modeling, and Power BI semantic layers. The role is at a major UK performing arts organisation undertaking a data transformation, and you'll lead and mentor a small team of data engineers.

You’ll build and ship user-facing apps primarily on Databricks Apps, using React, Vue, or Angular, and integrate with REST/GraphQL APIs served by the Data Science team. You are the technical lead on a team migrating from Power BI to custom applications, owning the full lifecycle while mentoring engineers on DevOps practices like Git and CI/CD.

Version 1★3.9 (39)· London

Technologies include AWS security services, Python, Terraform/CloudFormation, and GitLab CI/CD. You embed within a large-scale cloud migration programme moving workloads to AWS, designing, automating, and enforcing security controls throughout the migration lifecycle.

You will work with REST APIs, FIX protocol, JSON, SQL, command-line tools, and Python scripting to lead technical implementations and connectivity integrations for institutional clients. The role manages end-to-end onboarding of exchanges, liquidity providers, and clients onto Talos’ institutional-grade digital asset trading platform, handling platform configuration and troubleshooting. This is an implementation-focused role, not production support, requiring 3+ years of capital markets or fintech experience.

Wise★3.5 (42)· London

You will build scalable systems for business onboarding and verification using Java or JVM languages, Spring framework, JDBC, and relational/non-relational databases with CI/CD pipelines and distributed systems. This engineering team owns end-to-end projects to automate verification, create flexible onboarding journeys, and manage compliance risks for Wise’s money-moving platform across Europe and the UK.

Proton★5.0 (1)· London

You will work with .NET, Windows desktop application development, multi-threaded programming, file systems, Git, GitLab CI/CD, and monitoring/alerting frameworks. You’ll build and maintain Proton Drive for Windows, a privacy-by-default application that manages local and remote state and performs cryptographic operations.

Lead Azure, AWS, Entra ID, Boomi, and ServiceNow-driven platform engineering across Inizio's corporate IT estate. Oversee architecture, cloud enablement, and a Centre for Enablement model, managing 3–5 senior engineers and architects. Set technical direction, govern standards, and drive reusable patterns, landing zones, and CI/CD automation.

Uses SQL, Python or scripting, BI tools like PowerBI/Looker/Tableau, spreadsheets, and Git to investigate fraud and build dashboards. The role sits in fraud analytics at Moniepoint, an all-in-one financial services platform powering POS transactions and banking across Nigeria and emerging markets.

Intercontinental Exchange★3.2 (156)· London

This is a senior product development role at ICE Data Indices in London, where you will design custom equity and commodity index methodologies using Python, advanced Excel, and the ICE Index Platform. You will engage directly with institutional clients and collaborate with quant and development teams to implement and validate indices. The role requires deep knowledge of equity and commodity index construction, including factor-based, ESG, and thematic approaches.

Expleo Group★2.9 (211)· London

Lead D365 technical design and hands-on development using C#, Vue.js, PowerApps, LogicApps, and Azure Cloud. Deliver and integrate enterprise-level Dynamics 365 solutions, mentor junior developers, and enforce coding standards.

Medicines and Healthcare products Regulatory Agency★3.8 (26)· London

The Infrastructure Operations Engineer will work with Microsoft Azure cloud services, Azure DevOps, PowerShell, Azure CLI, Active Directory, and RBAC. The role supports the Clinical Practice Research Datalink, which provides anonymised NHS data for health research. They will maintain secure, resilient cloud infrastructure and IT systems within the Safety and Surveillance group.

Lead Legl's data function, owning strategy and execution on a stack of Snowflake, dbt Core, Fivetran, GitHub Actions, Metabase, and Snowflake Cortex. You'll build the team from scratch, transitioning data operations from a request queue to self-serve, and partnering with Commercial and Product teams. This is for Legl, which builds software for legal firms.

Design, build, and optimize analytics solutions using SQL, DBT, Power BI (DAX, RLS), GitHub, and cloud platforms (Snowflake, BigQuery, Databricks, Fabric). You will drive data-driven marketing insights for enterprise clients, architecting data models and leading test-and-learn programs. The role also involves mentoring junior team members.

You'll work with JavaScript, Node.js, Express, React, and MongoDB/Mongoose to set technical direction and oversee AI-assisted content-creation features. As Fractional Head of Product at StoryTerrace, you'll own the roadmap for two B2C platforms—an established product and a new self-serve app—directing one Full Stack Developer and advising on hiring. This role reports to the CEO and requires hands-on coding experience to unblock development.

You will work with REST APIs, Webhooks, SSO/SAML, Postman, and iPaaS platforms (Workato, Boomi, Zapier, Make). You will design and implement custom integrations between Rocketlane and systems like NetSuite, Salesforce, and Workday, and assist with data migration strategies. This is a blended customer-facing consulting and engineering role at a SaaS company focused on customer onboarding and professional services automation.

Trayport★4.2 (5)· London

You will work with AWS (VPC, EKS), Azure (AKS, AKV), Terraform, Kubernetes, CI/CD, and AI tools (Copilot, LLMs). You will design, build, and operate the infrastructure for a global trading platform, leading AI adoption to automate operations and reduce toil. This role is 70% hands-on engineering and 30% technical leadership, mentoring the Platform and Operations teams.

JELLYFISH★3.5 (32)· London

The role focuses on building and extending an agentic delivery stack using tool APIs, MCP servers, AI harnesses, agentic operating systems, and Python. You will drive agentic delivery and adoption both inside Jellyfish, a global digital marketing agency, and with its enterprise clients. This is a 4-month fixed-term contract.

Immuta★3.0 (1)· London

Snowflake, Databricks, AWS, Azure, and Google Cloud partner ecosystem. Immuta automates policy-driven data access and governance for enterprises. As a Regional Account Executive, you will own new business development across the EMEA region, managing the full sales cycle in complex enterprise environments.

PlayStation★3.8 (164)· London

This role involves working with TensorFlow or PyTorch, Python, and libraries for computer vision and graphics. As part of the Visual Computing Group (VCG), you will develop generative models to advance game rendering and live video streaming through neural networks and machine learning R&D.

Work with Python, PyTorch, JAX, CUDA, Docker, Kubernetes, Slurm, Ray, and Linux on GPU computing. The Molecular Intelligence team builds ML and physics-based infrastructure for drug discovery, including biophysics, chemistry, cofolding models, simulation workflows, and agent-usable scientific pipelines.

Work with Python, RDKit, Biopython, OpenMM, MDAnalysis, and open-source computational chemistry workflows for docking, virtual screening, SAR, QSAR, ADMET, and cheminformatics. You will guide and evaluate AI-driven drug discovery workflows, ensuring agent-generated optimization plans and modeling are chemically sound, and lead computational chemistry strategy on active drug programs when needed.

Deloitte★3.9 (14k)· London

You will design, build and deploy intelligent agents and low-code applications using Microsoft Copilot Studio, Power Automate, Power Apps, Dataverse, and related Microsoft 365 capabilities. The role sits within Deloitte’s Tax & Legal Digital team, creating production-ready AI and automation solutions to improve service delivery, efficiency and quality for practitioners. You will provide hands-on technical leadership across the design and build lifecycle.

Relay Technologies★2.0 (9)· London

At Relay Technologies you will build and own time-series forecasting models for parcel volume, inbound international volume, and parcel size/weight, using Python and ML frameworks. You will work on the Network squad’s demand-forecasting engine that predicts parcel movement across sortation, middle-mile, and last-mile operations, directly affecting cost per parcel. This is a hands-on individual-contributor role, serving as the technical anchor for Demand Forecasting, collaborating with a Senior Data Scientist, ML Engineer, and Analyst.