You will work with Java, AWS, JavaScript, React, and TypeScript as a hands-on Senior Software Engineer or Technical Lead. You will provide technical direction and lead engineers while designing and building solutions on AWS.

You will work with Python, Django, Flutter or React, PostgreSQL, and AWS on a Greenfield project for a client server that builds digital platforms.

You will own a full production system including a React/TypeScript web app, Postgres database, data pipelines, deployments, integrations, and an LLM serving stack. This role continues development of the company’s engineering platform with genuine full-stack breadth in one codebase.

You will work with React/TypeScript, Postgres, data pipelines, deployments, integrations, and an LLM serving stack. As the first full-stack engineer, you will own and develop the company’s MLOps platform end to end, including the web app, database, and production system.

Develop and own a full AI platform using React/TypeScript, Postgres, data pipelines, and an LLM serving stack. Build and manage the web app, database, deployments, and integrations end-to-end as the first engineering hire.

Use Java and C# to design and develop software solutions that support product and business objectives, working with Principal Engineers and Architects to define engineering best practices at Spyrosoft in a hybrid London role.

Build high-performance, real-time applications using Next.js, React, TypeScript, Web Components, AG Grid, and WebSockets or SignalR. The role involves developing complex, data-driven interfaces with real-time communication.

Work with PHP, JavaScript, HTML, CSS, Git, GitHub, Docker, and Linux to build secure, scalable production systems and integrate APIs. The role is at MedPal AI Plc, but no specific project or team scope is described in the listing.

You will work with Java, Spring Boot, JavaScript, Angular, relational databases and SQL, REST APIs, real-time systems, and CI/CD, alongside legacy Ruby. The role is in a startup or SME where you’ll take on a variety of full-stack development responsibilities.

Work with React, TypeScript, Python/Node.js, Next.js, NoSQL/Relational databases, Docker, and cloud deployments. You will collaborate with public sector clients to build full-stack AI applications and custom LLM training data. Scale’s Global Public Sector team applies AI to critical government challenges.

JPMorgan★3.9 (20k)· London

You will work with Java, Spring Boot, Hibernate, JPA, Spring Kafka, microservices, CI/CD, and AI-assisted coding tools; preferred skills include React, Angular, Kubernetes, and Python. You’ll build production-grade full-stack software that powers JPMorgan’s global banking businesses and supports millions of customers.

Apple★4.1 (14k)· London

You will work with Go, React, PostgreSQL, and Kubernetes to build internal tools for SREs and engineers. The Apple Services Engineering team provides infrastructure and tooling that supports cloud engineering and helps make Apple’s services (iCloud, TV+, App Store) highly reliable.

Lead engineers on Canada Life UK's digital team work with modern component-oriented front-end frameworks, CI/CD pipelines, test automation, and Azure-hosted solutions. You will design and build accessible, responsive user interfaces (WCAG 2.2 AA standards), optimize front-end performance and Core Web Vitals, and contribute hands-on across full-stack development. This role is one of several Lead Engineers in Digital who collaboratively set technical direction and engineering standards.

Node.js, TypeScript, AWS, Kubernetes, REST APIs, Terraform, EventBridge, SQS, and CI/CD. You’ll join a high-growth UK payments fintech building scalable B2B payments infrastructure and event-driven distributed systems. As a Senior Engineer, you’ll shape architecture, own features end-to-end, and mentor engineers.

You will work with Python, Django, FastAPI, PostgreSQL, AWS, and distributed async workers. The team builds an AI platform that processes purchasing records and recipes to measure and reduce carbon emissions for the food industry. You will own the backend for a core product in an eight-person startup.

You will work on mobile or web applications, using JavaScript, React, Node.js, TypeScript, Python, or Java for web, or Swift, Objective-C, Kotlin, or Java for mobile. Konrad is a digital consultancy that builds consumer and enterprise digital products.

You'll work with TypeScript, React, Next.js, Node.js, PostgreSQL, AWS, Docker, and AI-assisted development tools, building scalable web applications for a multi-client technology business serving the creative, media and digital sectors.

You will work with Java, Spring Boot, React, TypeScript, Docker, and AWS or Azure on public sector digital transformation projects. The team builds cutting-edge digital solutions for government clients, using Git, CI/CD pipelines, and NoSQL databases such as MongoDB.

You will work with Python, TypeScript, React, AWS, and Pulumi to build distributed infrastructure and AI systems. This role focuses on automating complex workflows in physical industries like aerospace and healthcare, building scalable backend systems and managing GPU orchestration for a seed-stage industrial AI startup.

Meta★4.0 (1.1k)· London

Work with Objective-C/C++/Swift and the iOS SDK to build and optimize complex iPhone/iPad applications. Meta builds social technologies that connect billions of people and is advancing toward immersive augmented and virtual reality experiences.

You'll work with TypeScript, React, Next.js, Node/N

Architect and build scalable backend systems and APIs using Node.js, TypeScript, PostgreSQL, and event-driven architecture. You will integrate services with LLMs and AI models to automate property management workflows for Felicity, an AI assistant. As the most senior backend engineer, you will mentor the team and establish engineering standards.

Ares Management★3.3 (33)· London

This senior full-stack engineer works with cloud-native architectures, microservices, Kubernetes, messaging/event streaming, APIs, and CI/CD. They build scalable applications, data services, and platform capabilities across Ares' global credit investment lifecycle, including deal origination, underwriting, portfolio monitoring, risk management, and analytics.

You’ll work with JavaScript/TypeScript, Python or Golang, and AWS/GCP, using AI assistants in daily development. You’ll build and own features end-to-end for an AI-driven product at a fast-growing European scale-up, collaborating with engineering and product leads. No team size is stated.