50,006+ Software Developer Pythonreact Jobs in London, UK — Local Employers Hiring June 2026

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Senior Enterprise Consultant DealCloud Strategy

INTAPP LIMITED is seeking a Principal Consultant for Intapp DealCloud, focusing on enterprise engagements in London or remotely within the UK. You will lead complex projects, advise senior stakeholders, and contribute to digital transformation at professional firms. The ideal candidate has 5+ years of ...

Firmware Engineer, Embedded Systems for Renewable Energy

A leading renewable energy company in Greater London is seeking an experienced Embedded Systems Engineer to develop low-level firmware for microcontrollers and create real-time software for energy devices. The ideal candidate has a strong background in C programming and embedded systems, with over 2 years of exp ...

Senior Event Technology & Data Manager

A global brand experience agency in Greater London seeks an Event Technology Manager to oversee event registration systems and liaise with the events team. Candidates should have over 5 years of experience in attendee data management and event tech, including proficiency with software like Cvent and Excel. This ...

Fintech AI Driven Python Backend Engineer (Remote)

A fast-growing fintech startup is seeking a Python Software Engineer to build AI-driven financial technology products. This role offers significant technical ownership and remote-first working conditions. The ideal candidate will have strong commercial experience with Python and backend systems, and show a proac ...

Backend Engineer for Secure Government Systems (Node/.NET)

A technology consultancy in the UK seeks a skilled Software Engineer to work on impactful government projects. You will design and develop systems and APIs with Node.js/.Net in an agile environment, collaborating with multidisciplinary teams to ensure secure and user-centred services. Ideal candidates will have ...

Senior Full Stack Engineer (C#/React) — Salesforce DevOps

A leading DevOps platform company is looking for a Senior Software Engineer to enhance their product and collaborate closely with users. The candidate should have solid experience in C#, React, and TypeScript, along with a pragmatic and feedback-driven approach. This role offers a competitive salary between £59k ...

Senior Backend Architect Ultra Scale Data Platform

A leading data and AI firm in Greater London seeks a Senior Staff Software Engineer to design and maintain backend systems that power their platform. Must have over 15 years of experience in distributed systems and a strong foundation in algorithms. The role includes technical leadership, mentorship, and project ...

Lead MLOps Engineer — Scalable AI for Banking

A leading global financial services firm in London is seeking a Lead Software Engineer to design, build, and deploy scalable AI/ML solutions. You will work collaboratively with data scientists and product managers while developing secure, intelligent banking solutions. Candidates should have experience in Java, ...

Senior Test Engineer Java Automation & CI/CD (London)

LinuxRecruit is looking for a Senior Test Engineer to join their team in London. The ideal candidate will have a solid understanding of automation and a strong preference for coding in Java. This full-time position offers a competitive compensation package ranging from £70K to £80K. The role will involve working ...

AWS Connect Architect | Hybrid London | Center Growth

Net2Source (N2S) is looking for an experienced AWS Connect Architect in Greater London. This role involves designing and implementing Amazon Connect-based contact center solutions on AWS, integrating various AWS services, and ensuring best practices in software engineering. Candidates should possess strong hands ...

Senior Rust/C++ Backend Engineer — Trading Platform

Blockchain.com is hiring a Senior Back-End Engineer for its London office to enhance its trading platform. The role focuses on building scalable services in C++ and Rust and requires extensive experience in trading systems architecture. Candidates must have a passion for software quality and be familiar with per ...

Java Backend Engineer — AI FinTech, Equity + 25 Days PTO

A fast-growing startup in the UK is seeking a Software Engineer (Java Backend) to join their talented engineering team. You will design and build high-performance systems that power an innovative wealth management platform. The role requires 6+ years of backend experience, strong Java skills, and familiarity wit ...

Security Architect — CI/CD Security & Cloud Posture

Smart Pension is looking for a Principal Security Engineer to take charge of security practices that seamlessly integrate into our development processes. Your responsibilities will include designing secure software toolchains, overseeing security posture in cloud environments, and mentoring other engineers on se ...

Senior Engineering Manager — Cloud Driven Tech Lead, Hybrid

Capital One is seeking a Senior Software Engineering Manager in London to support and coach multi-disciplined engineering teams. The role involves collaborating with product managers on the product roadmap and contributing to the overall engineering culture. Key qualifications include experience in leading teams ...

Senior AI Engineer Applied AI & Gen AI (AWS)

A leading global financial services firm is seeking a Software Engineer III in Applied AI to innovate banking solutions. In this role, you will develop machine learning models, collaborate with a diverse team, and implement generative AI applications. Ideal candidates have a strong STEM background and experience ...

Lead Full Stack Engineer: Cloud Migration on AWS & Kubernetes

TXP is seeking a Lead Fullstack Software Engineer for a 12-month contract in Westminster, London. The ideal candidate will lead the migration of services off the London Datacentre onto AWS and Kubernetes, primarily working at the application layer. Responsibilities include building shared service templates an ...

Senior Backend Engineer for AI Driven Marketplace (Equity)

Jack & Jill is seeking a Senior Backend Software Engineer in London to build the transaction layer for a digital supply chain. You'll work in a high-velocity environment, helping to scale their innovative AI-native marketplace. The ideal candidate should have 6–10 years of backend experience, focusing ...

Senior Fullstack Engineer Elixir for HealthTech Platform

Doccla, based in Greater London, is looking for a Full-Stack Engineer with strong Elixir and React skills. In this role, you'll deliver high-quality software, lead technical projects, and collaborate closely with cross-functional teams. The ideal candidate should have extensive experience in a regulated environm ...

Full Stack Data Scientist: AI & Knowledge Graphs at Scale

Synergetic is seeking a Full Stack Data Scientist in Greater London to join their innovation team. The role requires candidates to blend data science with software engineering, focusing on machine learning, knowledge graphs, and AI solutions. Responsibilities include designing and implementing advanced AI models ...

Forward Deployed AI Engineer for Production Systems

Immersum is seeking a Forward Deployed AI Engineer in Greater London to design, build, and deliver cutting-edge AI solutions for high-profile clients in capital markets and investment management. The role demands expertise in Python and cloud architecture, with responsibilities including developing AI-driven sys ...

Senior Applied AI Engineer & Enterprise AI Architect

慨正橡扯 is seeking a Senior Applied AI Engineer (Manager) in Greater London to lead technical delivery in AI projects. The role involves mentoring engineers, engaging with stakeholders, and ensuring systems are production-ready. The ideal candidate has deep expertise in software engineering and applied A ...

Senior AI Engineer GenAI & LLMOps Innovator

PA Consulting in London is seeking software engineers with a passion for AI or data scientists who embrace engineering. You'll work within the Digital & Data community to implement innovative solutions across multiple sectors in a hybrid working environment. The ideal candidate will have strong skills ...

Go Backend Engineer — AI‑Powered FinTech

A UK-based FinTech firm is seeking a Software Engineer specializing in Go to join their team. The role involves developing high-performance back-end services and collaborating with cross-functional teams. Ideal candidates should have strong skills in Go, JavaScript, CSS, HTML, and experience with AI tools for im ...

Senior DevSecOps Engineer: Secure Cloud & CI/CD (Hybrid)

A leading fintech company in Greater London is looking for a Senior DevSecOps Engineer to drive security integration into the Software Development Lifecycle (SDLC). This role involves automating compliance checks, managing security tools, and ensuring a secure Google Cloud Platform environment. Candidates should ...

Security Engineer, AI Driven Vulnerability Rules

A leading security company is looking for a Security Engineer specializing in vulnerability modeling. This role involves developing automated detection rules for various codebases and working alongside software engineers to innovate security measures. Candidates should possess a strong foundation in application ...

Senior Java Tech Lead: Cloud Microservices & FinTech

A leading financial institution in London is seeking a Senior Lead Software Engineer to deliver innovative cloud-native solutions. The ideal candidate will have significant experience in Java, be proficient with microservice architecture, and thrive in an agile environment. You'll be contributing to diverse proj ...

IAM Full Stack Engineer: Secure Platform & Access Leader

A leading financial technology firm is seeking a Software Engineer to join their IAM team. In this role, you will design and implement secure, scalable solutions for user access management, employing cutting-edge technology in a supportive environment. Ideal candidates will have experience in full stack engineer ...

Senior Backend Tech Lead Scalable Microservices, Growth

Marshmallow is seeking a Technical Lead – Backend to lead a cross-functional team in building scalable customer flows and improving existing solutions. Candidates should have 8+ years of software engineering experience, including 2+ years in a lead role, strong expertise in microservices, and a commitment to men ...

Staff Platform Engineer — Content & Media APIs

MARKS&SPENCER in Greater London seeks a Staff Software Engineer to enhance the Content Domain platform, ensuring fast, confident experiences for product, engineering, and content teams. The ideal candidate will have a strong background in backend engineering, especially with Java and Azure, and must ex ...

Senior Python Lead Engineer – Microservices for Delta One

A global investment bank is seeking a Lead Software Engineer based in Greater London. In this role, you will engineer scalable RESTful micro-services and APIs while guiding a team of developers. The ideal candidate should have extensive Python experience and a solid understanding of microservices architecture, C ...

Cloud Platform Engineer – IaC, CI/CD & DevOps

A leading tech company in Greater London is seeking a Platform Engineer to design, build, and maintain scalable cloud infrastructure. The role involves driving DevOps practices and collaborating across teams to deliver high-quality software solutions. Candidates should have extensive experience with AWS, Infrast ...

Senior Backend Engineer Scala for Generative AI

WorksHub is looking for a Senior Software Engineer specializing in backend development using Scala to join their London team. In this full-time role, you'll contribute to innovative projects focused on artificial intelligence. Ideal candidates will possess a strong foundation in functional programming and experi ...

Senior Java Engineer: Microservices, Cloud & Kafka

JPMorgan Chase & Co. is looking for a Product Engineer in Greater London. You will collaborate with the Product team to develop and deliver software features using Java/Springboot and other technologies. Responsibilities include taking ownership of tasks, ensuring high-quality code, and participating in code rev ...

Staff Frontend Engineer: Lead High Impact EdTech UI

A high-growth EdTech startup in London seeks a Staff Software Engineer to lead frontend initiatives for their gamified learning platform. In this impactful position, you will build user-facing features while collaborating closely with designers and product managers. Ideal candidates are experts in React, TypeScr ...

Cybersecurity Engineer — Hybrid Role, Work From Anywhere

A leading global intelligence organization is seeking a Cybersecurity Engineer responsible for protecting organizational systems and networks from cyber threats. The role involves conducting security breaches response, penetration testing, and implementing cybersecurity measures. Candidates should have a degree ...

SDE II: Navigation & Traffic Backend

A location technology platform in Greater London is looking for a Mid-Senior Software Development Engineer II in Navigation Traffic. In this role, you will balance rapid development of navigation solutions with system reliability as demand scales. Ideal candidates will have over 5 years of experience in backend ...

Healthcare DevOps Engineer: Secure Hybrid Deployments

A healthcare technology company based in London seeks a DevOps Engineer to design and automate secure deployments of their software platform across varied environments. Responsibilities include building CI/CD pipelines and ensuring compliance with security practices. The ideal candidate has extensive experience ...

Full Stack Engineer for AI Safety Tools

An innovative tech firm in London is seeking Full-stack Software Engineers to develop cutting-edge tools for AI safety research. You will lead projects to analyze model evaluation results and collaborate closely with research teams. Candidates should have solid experience in Python and React, alongside a passion ...

Staff AI Driven Full Stack Engineer

Agoda is seeking a Staff Full Stack Engineer to design and build AI-driven chat experiences from their Bangkok HQ. The role requires 8+ years of software engineering experience, expertise in Java, Kotlin, .NET, and JavaScript/TypeScript. You will lead full-stack architecture for user-centric solutions and mentor ...

Golang Cloud Native Dev: Kubernetes, Microservices & GenAI

Grid Dynamics in Greater London seeks a skilled software engineer with strong Golang and Kubernetes experience to support a global transformation in Investment Banking. You will engage in both greenfield and brownfield projects, focusing on cloud migration and developing tech frameworks for genAI. This role offe ...

Principal Traffic Signals Engineer – Hybrid Urban Leader

A global engineering firm is seeking a Senior or Principal Engineer to join their Traffic Signal Design team. In this role, you will lead the delivery of traffic signalling projects, focusing on client management, technical expertise, and mentorship of junior staff. Ideal candidates will have significant experie ...

Tech Director, FX Execution — AI Driven, Low Latency

BNY is looking for a Director of Technology in London to lead technology initiatives in FX Execution Services. The ideal candidate will have extensive experience in software development, particularly in financial institutions, and a Bachelor's degree in Computer Science or Mathematics. Responsibilities include l ...

Senior Back End Engineer — Scale Cloud Infra for Charity

Beacon, located in London, is seeking an experienced back-end software engineer to develop scalable systems for their nonprofit-focused CRM platform. The role focuses on utilizing TypeScript, Serverless architectures, and cloud infrastructure (AWS and GCP). The ideal candidate has at least 8 years of experience ...

Architectural Designer II Hybrid Education Projects

N Family Club is hiring a Part II Architectural Designer / Technician in Shoreditch, London. This role involves supporting architectural design projects from concept to completion, including site visits and planning submissions. Candidates should have qualifications in Architecture, 2-5 years of UK project exper ...

Senior AWS Cloud & DevOps Engineer – ECS/EKS Expert

OPS Brasil is seeking a highly skilled DevOps Engineer based in Greater London. This role involves designing and maintaining scalable, secure infrastructure using AWS, focusing on container orchestration with Amazon ECS and EKS. The ideal candidate has 5+ years of relevant experience, strong scripting ...

Senior Frontend Engineer Scale Platform (React/TypeScript)

A global financial technology firm seeks a senior software engineer to build scalable and reliable systems. This role involves architecting solutions for major clients, working with multi-tenant infrastructures, and collaborating across various teams. Candidates should have 3+ years in ReactJS and TypeScript, an ...

Senior SRE Data Platforms on AWS & Databricks

J.P. MORGAN is seeking a Site Reliability Engineer within the Chief Data & Analytics Office. The role involves maintaining AWS Databricks, driving improvements in system reliability, and collaborating with cross-functional teams. Candidates should have over 10 years of experience in software engineering and expe ...

macOS Endpoint Engineer: Automation & Security

A leading design technology company is seeking an experienced IT Engineer focused on macOS endpoint management. This role involves automation, reliable software delivery, and securing internal IT services. Candidates should have significant hands-on experience in managing macOS environments and familiarity with ...

Senior JVM Server Side Engineer High Touch Trading

Galaxy is seeking experienced software engineers to join our London front office trading technology team. The role involves building and evolving server-side systems crucial for high-touch trading workflows. Candidates should have 10+ years of Java development experience, exceptional knowledge of concurrency and ...

Senior Staff Engineer: Data Streaming & Event Driven Architecture

A leading sportswear company is looking for a Staff Software Engineer to enhance event-driven architectures and drive the development of data streaming. The role involves mentoring junior engineers and collaborating with global teams. Candidates should have over 5 years of experience in scalable systems and exte ...

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    Software Developer Pythonreact Jobs in London Job Search Guide, Trends and Insights