Build enterprise-grade web applications using Python (Django/FastAPI), React, TypeScript, and PostgreSQL. Develop RESTful APIs, responsive UI components, and contribute to system design, CI/CD pipelines, and performance optimization.

You’ll work with Python (Django/FastAPI), React, TypeScript, PostgreSQL, REST APIs, and CI/CD. You’ll own end-to-end feature delivery on scalable, enterprise-grade web applications.

Builds cloud platforms for a systematic quant hedge fund's trading and research, using AWS (EC2, S3, VPC), Python/Bash, Jenkins/GitLab CI, Terraform/CloudFormation/AWS CDK, Docker, and Kubernetes to support digital asset and crypto systems.

Capgemini★3.7 (11k)· London

Design, build, and manage data pipelines and models using AWS Snowflake, Azure Data Lake, Databricks, Redshift, and BigQuery. Automate CI/CD with Azure DevOps, GitHub Actions, Jenkins, GitLab CI/CD, and provision infrastructure with AWS CloudFormation, Docker, ECS, EKS, and Kubernetes. Capgemini is an AI-powered global business and technology transformation partner.

NiCE★3.4 (30)· London

You'll work with Python, Go, Java, C#, Bash, PowerShell, AWS (EC2, ECS, Lambda, DynamoDB), CloudFormation, Terraform, Jenkins, GitLab CI/CD, CircleCI, Docker, Kubernetes, Prometheus, Grafana, ELK stack, Cloudwatch, and optionally Grafana Observability Suite, Splunk, Datadog, PagerDuty, Rundeck, Ansible, Puppet, Chef. As an individual contributor, you'll run production, improve reliability, and support multiple large distributed software applications for NiCE, a provider of customer experience, financial crime, and public safety software.

Infosys★3.8 (17k)· London

You will work with Java, Spring Boot, Hibernate, JPA, React/Angular/Vue.js, HTML5, CSS3, JavaScript, RESTful APIs, SQL/NoSQL databases, Git, and CI/CD tools on cloud platforms (AWS, Azure, GCP). As a Senior Consultant at Infosys, a global digital services and consulting firm, you'll contribute across the consulting lifecycle—defining problems, proposing solutions, and guiding development, configuration, and deployment while mentoring teams and shaping client-focused solutions. Docker and Kubernetes experience is a plus.

Work with AWS, Kubernetes, Docker, Terraform, CloudFormation, Python, Go, Jenkins, GitLab CI/CD, Prometheus, and Grafana. You will run production environments, build and automate infrastructure, and improve reliability for NICE’s suite of distributed software solutions.

You will work with Python/Java, Docker, ECS/EKS, GitLab, CI/CD, Terraform, AWS, and Kafka to build a cloud-native customer onboarding platform for a banking client. As a Principal Engineer, you provide technical leadership across multiple squads and mentor a team of approximately 10 junior engineers.

This role develops generative AI applications using Java, Python, React or Angular, LangChain, LlamaIndex, Hugging Face, Docker, Kubernetes, and AWS, with tools like GitHub Copilot. You will build scalable, AI-powered solutions for Citi’s global finance operations.

Senior Java developer working with Spring Boot, J2EE, RESTful APIs, Microservices, Kubernetes or OpenShift, Angular, JavaScript, Bootstrap, HTML5, CSS3, SQL, PL/SQL, JBoss or Oracle 10gAS, Git, Maven, Jenkins. You will design, develop and enhance enterprise BSS/OSS solutions, mentoring junior developers within an Agile team.

You will work with C#, ASP.NET Core, React/Angular/Blazor, REST APIs, Git, Azure/AWS, and CI/CD tools. The role is with 83zero, though the listing does not specify a particular team or product project.

You will build RESTful microservices with Java, Spring Boot, React, JavaScript/TypeScript, HTML and CSS, design and integrate REST APIs, and use Git, Docker, and Docker Compose. You will work with AWS or Azure and CI/CD tools like GitLab CI, GitHub Actions, or Jenkins in an Agile environment. This role is for a Full Stack Engineer contributing to product development at 83zero.

You'll work with JavaScript, TypeScript, React, HTML5, CSS, and server-side rendering to build production web applications and responsive interfaces. As a founding engineer at Hyre AI Limited, you'll shape the frontend architecture from an early stage.

You will write performance-critical software in Rust, working across backend services, APIs, and infrastructure—with frontend in React/Next.js/TypeScript when needed—for a global financial services firm. The stack includes Tokio, Azure, Kubernetes, Python, SQL, and CI/CD tooling. This is an early-career engineering role with end-to-end ownership.

Mott MacDonald★3.9 (699)· London

You will work with CI/CD, testing, observability and secure development practices, identifying AI opportunities. You lead the Connect Projects team, building software capabilities for Mott MacDonald’s digital portfolio in the architecture, engineering and construction sector.

Work with TypeScript, Python, Node.js, Playwright, Cypress, WebdriverIO, Docker, GitHub Actions/GitLab CI, bash, and Jira to build and maintain test automation frameworks and CI pipelines for Connected TV devices.

You will work with the Moata platform, CI/CD pipelines, architecture patterns, and AI to improve workflows and user experience. As Technical Lead on the Connect Projects team, you will shape technical direction, mentor developers, and build secure, scalable software for Mott MacDonald, a global engineering consultancy.

Mott MacDonald★3.9 (699)· London

You will work with CI/CD, testing, observability and secure development practices, and identify opportunities to apply AI. The Connect Projects team builds digital capabilities for the architecture, engineering and construction sector within the Moata platform. No team size is stated.

You'll use TypeScript, Python, Node.js, Playwright, Cypress, or WebdriverIO, plus Docker, GitHub Actions/GitLab CI, and bash. The Quality Engineering team builds test-automation frameworks and CI pipelines that run on real Connected TV devices, targeting global TV users.

State Street★3.4 (3k)· London

You will work with ReactJS, NextJS, TypeScript, NodeJS, Java, Spring Boot, Docker, and AWS to build cloud-native microservices. The role involves modernizing legacy platforms and developing enterprise-scale applications for a financial services firm. You will also mentor junior developers.

American Express★4.1 (9.7k)· London

You will work with PowerShell, Python, AWS, Azure, Google Cloud, Java, HTML5, JavaScript, .NET, DevOps, and SRE tools. The Enterprise Technology Services organization powers the company’s growth by delivering technology, digital, and data capabilities globally, and your team provides 24x7 support for technology engineering, architecture, and infrastructure to ensure high product availability.

Wipro★3.8 (17k)· London

Lead design and build-out of a managed container environment, migrating existing VM-based infrastructure (likely Kube, an internal Kubernetes/EKS cluster); work with Docker, Terraform, Ansible, RHEL, Bash, Python, and tooling like Prometheus, Grafana. The team at Wipro manages EMEIA cloud infrastructure and internal system connectivity.

You will work with PowerShell, Python, Java, HTML5, JavaScript, .NET, AWS, Azure, Google Cloud, network protocols, automation tools, and DevOps practices. The Enterprise Technology Services team provides 24x7 global support for American Express’s technology engineering, infrastructure, and cloud services to ensure high product availability.

Lead cloud operations and infrastructure strategy, overseeing enterprise cloud environments across Azure, AWS, and GCP. Drive IaC adoption with Terraform, Bicep, ARM Templates, or CloudFormation; manage Kubernetes, Docker, and CI/CD pipelines via Azure DevOps, GitHub Actions, GitLab CI/CD, or Jenkins. Guide a team of cloud engineers, DevOps, and infrastructure specialists.

You will work with Angular, TypeScript, HTML5, Java, Spring Boot, REST/GraphQL, MongoDB/MSSQL, Kafka, and AI coding agents like Copilot and Devin. This role is on Citi’s Banking Technology team building a microservices-based web platform for senior bankers as part of the Opus Capital Management strategic transformation.