BNY★3.5 (5.5k)· London

You'll use Java 17/21 with Spring, Maven, Groovy, JavaScript/TypeScript (Angular), Docker, GitLab CI/CD, IntelliJ, Windsurf, Splunk, and AppDynamics to build secure backend services, batches, and APIs for a global financial services company.

Hays★3.5 (1.4k)· London

You will work with Snowflake, AWS, Python, SQL, dbt, Airflow and GitLab CI/CD. The role is part of a major cloud transformation programme building a next-generation, cloud-native data platform, including ETL/ELT pipelines and migrating legacy environments.

Java (JVM), Kafka, cloud infrastructure, containers and Kubernetes, Git, and DevOps tooling. You will build resilient integrations and automated test frameworks for LMEsmart, the LME’s Inter‑Office Trading platform that handles trade registration, lifecycle management and matching.

Work with Java (JVM), cloud infrastructure, Kafka, Git, React.js (bonus), Python (bonus), Docker, Kubernetes, and Ansible. You will engineer resilient integrations and workflows for LMEsmart, the LME’s Inter-Office Trading platform, and develop automated test tooling and framework development.

Arup★4.0 (352)· London

You will work with Python, Git/GitHub, pytest, CI/CD, AWS/GCP/Azure, Terraform, Docker, MATSim, Java, and PopulationSim. The Transport Modelling team develops data-driven solutions for urban transport challenges using agent-based modelling and software engineering best practices.

Design and build data engineering solutions using Azure Databricks, Azure Data Factory, and Scala, processing and transforming large-scale datasets with multi-million records. You will develop optimized, scalable data pipelines and collaborate with cross-functional teams in an Agile environment.

Senior Software Consultant will work with Java, C#, .NET, Python, JavaScript, TypeScript, RESTful APIs, microservices, Docker, Kubernetes, CI/CD, and cloud platforms (Azure, AWS, GCP). The role leads consulting engagements to help clients modernize applications and achieve digital transformation, providing technical leadership and mentoring engineering teams.

Work with Java 11+ (ideally 17+), Spring Boot, Kafka, JMS, Akka, MongoDB, and TDD/BDD with modern CI/CD. You'll build and enhance low-latency, event-driven payment systems that process millions of transactions daily for Tier 1 banks. The role is a senior individual contributor within a high-skilled engineering team.

Transport for London★4.0 (429)· London

You'll build high-performance systems and APIs using C#/.NET Core, Microsoft Azure, Azure DevOps (CI/CD with YAML), Infrastructure as Code (Bicep/ARM), SQL Server, React, TypeScript, and OAuth. Part of a Scrum team in a scaled Agile environment, you'll deliver scalable, cloud-native solutions relied on by millions daily.

You will use Python, Git/GitHub, automated testing frameworks (pytest, unittest), and CI/CD pipelines, with desirable exposure to AWS, GCP, Azure, Terraform, Docker, Java, and agent-based modelling tools like MATSim. You will join Arup’s Transport Modelling and City Modelling Lab teams, which use data, modelling, and visualisation to help clients plan future transport systems.

Sportradar★3.9 (52)· London

Work with C#, .NET, React, AWS, Serverless, GitLab CI, and AI-assisted tools (GitHub Copilot, Cursor) using Specification-Driven Development, ATDD, and BDD. The Premium Cricket team builds high-performance applications for real-time cricket data collection and distribution.

You will work with Golang, Kafka, Docker, Postgres, gRPC, GraphQL, and CI/CD tools on a global microservice-based Loyalty and Benefits platform for American Express, building features in the Account domain as part of a Scrum team. As Senior Technical Lead, you will guide and mentor the development team.

Citi★3.9 (21k)· London

This role uses Java, Python, or Go to design and build production-grade software and agentic AI workflows with frameworks like LangChain, AutoGen, and LLM APIs. You will integrate large language models into operational tooling, anomaly detection, and developer productivity platforms within Citi's global production environment. This Vice President-level position requires an engineering-first focus on autonomous systems and self-healing infrastructure at scale.

Universal Music Group★4.0 (408)· London

You will work with C#, JavaScript, TypeScript, Playwright, Cypress, Selenium, REST APIs, Postman, Swagger, AWS, Azure, Google Cloud, GitHub Actions, Docker, Kubernetes, SQL, Redis, Elasticsearch, and Angular. As a Senior QA Engineer at Universal Music Group, you will act as a quality leader, mentor, and strategic contributor across delivery teams, defining QA strategy, test automation frameworks, and release quality standards to support the world’s leading music company.

Visa★3.9 (1.2k)· London

You will work with Java 11+, Spring Boot, AWS, Kubernetes, Kafka, ElasticSearch, Datadog, Docker, Terraform, OpenAPI, SQL, PACT, and CI/CD pipelines. As part of cross-functional squads, you will build and maintain a high‑availability, cloud‑native payments platform that processes over 50 billion USD in cross‑border transactions. You will lead technical direction, shape architecture, and mentor junior engineers.

You'll work with the latest .NET (C#), Azure, Azure DevOps, and infrastructure-as-code tools. You'll join the Payments platform team designing and developing the systems that handle all of ASOS's payment processing, integrating with a wide variety of payment providers.

Work with cloud platforms (AWS, Azure, GCP), Infrastructure as Code (Terraform, CloudFormation), containerisation (Docker, Kubernetes), and CI/CD pipelines. As a Senior Cloud Engineer in the Cloud & Engineering Practice, you will design and maintain secure, scalable cloud infrastructure for public sector digital services.

MUFG★3.3 (1k)· London

Lead platform engineering using CI/CD,

You will work with C++ and Python, building CI/CD pipelines on Linux and Windows. This role supports defence projects involving real-time data processing, simulation, or sensor integration within Agile teams using Scrum and Kanban.

You will lead a Data Products team, using Python, SQL, NoSQL, Databricks, Git, CI/CD, AWS or Azure, and Data Lakehouse Architectures. The team curates, designs and evolves data products on a new internal Data and Processing Platform that supports Baringa’s energy-market modelling, analytics and client-facing outputs. You will provide technical leadership to the Data Products team.

Develop web applications using HTML5, CSS3/SCSS, JavaScript/TypeScript, React.js or Next.js for the front end, and Node.js with Express.js for the back end, along with Strapi CMS. As part of a multidisciplinary Agile team, you will build and maintain modern digital services and CMS-driven websites aligned with GDS standards.

Manages a globally distributed SRE team supporting Cboe's real-time low-latency trading platforms for US Global Trading Hours and European operations. Works with bare-metal on-premises infrastructure, cloud platforms (AWS, Azure, GCP), containerization (Docker, Kubernetes), SQL, UNIX shell, and agile (Kanban, Scrum). Oversees SRE staff across European and APAC time zones.

Visa★3.9 (1.2k)· London

You'll work with Java 11+, Spring Boot, AWS, Kubernetes, Kafka, Docker, and OpenAPI on distributed microservices powering Currencycloud's payment platform, which has processed over 50 billion USD in cross-border transactions. The role involves building and maintaining high-availability cloud-native applications within squads, with responsibility for technical direction, system design, and mentoring junior engineers.

LSEG★3.7 (402)· London

You'll lead the migration and evolution of SwapClear and Listed Rates' reporting and data analytics platform from legacy Oracle/Informatica to a cloud-native Snowflake-based architecture, working with SQL, Python, dbt, and ELT patterns. The platform underpins regulatory reporting and risk visibility for a systemically significant clearing house processing $3.5 trillion notional daily. You'll manage a team of engineers delivering this multi-year transformation while ensuring high availability, governance, and resilience standards.

You will work as a full stack engineer with primary focus on C#, .NET Core, and AWS cloud-native back-end services, including REST API design, Docker containerization, and infrastructure as code, while also contributing front-end features using React, TypeScript, and Node.js. You'll join an autonomous product team within StepStone Group's Profile domain, owning end-to-end technical design and implementation, with responsibilities spanning microservices architecture, CI/CD tooling like Bamboo and Octopus, automated testing, and mentoring other engineers on modern .NET and cloud practices.