Senior Software Engineer Fullstack Python React Jobs in UK

Professional job seekers finding United Kingdom jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Lead JavaScript/TypeScript Software Engineer Hardware Integrated Software

Lead JavaScript/TypeScript Software Engineer Hardware Integrated Software A fantastic opportunity for a Lead JavaScript/TypeScript Software Engineer to join an innovative technology company developing advanced hardware-integrated software systems. This is a hi ...

Software Engineer I (Kyriba Specialist) Software engineering London

Essential Duties and Responsibilities: Lead Kyriba Treasury Management System (TMS) related solution design sessions with stakeholders and facilitate requirements gathering Configure & test solutions/workflow in the TMS UAT environments for various TMS modules (Cash Manage ...

AR/VR Software Development Engineer, Vision Products Software

Summary Posted: 17 Dec 2025 Weekly Hours: 40 Role Number: Apple is where individual imaginations gather together, committing to the values that lead to great work. Every new product we build, service we create, or Apple Store experience we deliver is the result of us mak ...

Lead JavaScript/TypeScript Software Engineer – Hardware Integrated Software

Lead JavaScript/TypeScript Software Engineer – Hardware Integrated SoftwareA fantastic opportunity for a Lead JavaScript/TypeScript Software Engineer to join an innovative technology company developing advanced hardware-integrated software systems.< ...

Lead JavaScript/TypeScript Software Engineer – Hardware Integrated Software

Lead JavaScript/TypeScript Software Engineer – Hardware Integrated SoftwareA fantastic opportunity for a Lead JavaScript/TypeScript Software Engineer to join an innovative technology company developing advanced hardware-integrated software systems.< ...

Lead JavaScript/TypeScript Software Engineer – Hardware Integrated Software

This is a highly hands‑on software engineering role focused on building scalable, production‑ready software that directly supports and interacts with sophisticated physical systems and devices. Unlike traditional web development positions, this role sits within a real‑world engineering environment where so ...

Lead JavaScript/TypeScript Software Engineer Hardware Integrated Software

Lead JavaScript/TypeScript Software Engineer Hardware Integrated Software A fantastic opportunity for a Lead JavaScript/TypeScript Software Engineer to join an innovative technology company developing advanced hardware-integrated software systems. This is a hi ...

.NET Developer Ulverston

Overview .NET Developer - World Class Entertainment Company - Ulverston, Cumbria (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Dev ...

Software Engineer in London Oriole Networks

Software Engineer London, United Kingdom Posted 10 months ago Tech stack Python C Software Engineer hardware Linux Experience Experience with soft processors, such as Nios, Microblaze, Risc-V Linux kernel and us ...

Remote Software Test Engineer AI Driven Automation

A tech-driven firm is seeking a remote Software Engineer in Test to lead automation testing in collaboration with the engineering team. Responsibilities include building and maintaining automated tests, translating manual test cases into automated formats, and contributing to backend Python development. Ideal ca ...

Backend Developer

Job Description We are seeking a skilled Backend Developer with strong hands‑on experience in Python and/or Java to design, develop, and maintain scalable backend services and APIs. The ideal candidate will have experience building robust backend systems, integrating with databases and ex ...

Platform Engineer

Most “platform” roles are either infra-heavy or backend-heavy. This one sits in the middle. This company is hiring a Senior Platform Engineer to work across the systems that keep their platform fast, reliable, and scalable at global scale It’s broad, technical, and not confi ...

Platform Engineer

Platform Engineer - Contract – Consulting - GCP, Kubernetes, Terraform, Python / Go Oliver Bernard are currently working with a Consultancy client of ours who are looking for strong Platform / DevOps Contractors, from a Development background, for a large Cloud, Container a ...

Software Engineer Realtime Quant Frameworks

We tackle the most complex problems in quantitative finance, by bringing scientific clarity to financial complexity. From our London HQ, we unite world‑class researchers and engineers in an environment that values deep exploration and methodical execution — because the best ideas take time to evolv ...

Senior Back End Software Developer

Job Description My client, a global leader in financial market infrastructure and trading technology, is hiring a Senior Software Engineer (Back End) to join an existing engineering team based in Belfast. This is an exciting opportunity to work on business-critical software solutions supporting g ...

Front End Developer TypeScript React FinTech

Front End Developer / Engineer (TypeScript React) Newcastle onsite to £120k Do you have a first class education combined with commercial TypeScript and React skills? You could be progressing your career at a start‑up Investment Management firm that has secure backing and an establis ...

Senior DevOps Engineer

Job DescriptionRole Purpose:Crown Agents Bank (CAB) is hiring developers that are looking to engineer state-of-the-art financial systems. CAB is currently investing in technology growth and change driven by business growth. This is leading to new revenue streams and product capabilities inclu ...

Senior DevOps Engineer

Job DescriptionRole Purpose:Crown Agents Bank (CAB) is hiring developers that are looking to engineer state-of-the-art financial systems. CAB is currently investing in technology growth and change driven by business growth. This is leading to new revenue streams and product capabilities inclu ...

Lead Backend Developer Python Java AWS

21 hours ago Be among the first 25 applicants This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software ...

Lead Cloud Network Engineer

Overview Lead Cloud Network Engineer - up to 95k+ Benefits London offices with Hybrid working options. A Lead Cloud Network Engineer opportunity for a business whose software products include AI and Automation software used by globally recognised companies. The Lead Cloud Net ...

Senior Engineer (Vice President)

Role As a Senior Engineer you will be responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Abou ...

Senior Node.js Engineer AI SaaS, Product Driven Ownership

A Northern Ireland-based SaaS company is seeking a Software Engineer (Node.js) to join their team in Belfast. The position involves developing an AI-powered platform, where you will take ownership of features from idea to delivery across both backend and frontend systems. The ideal candidate will have experience ...

Full Stack Engineer: AI Driven C2 & Simulation

A cutting-edge deep-tech company in the UK seeks a Full Stack Software Engineer to lead the development of their command and control platform. In this role, you will shape the system architecture and collaborate across a cross-functional team, employing your expertise in React and Node.js. The company offers hyb ...

Principal Frontend Architect DeFi & Web3 UX Lead

A pioneering technology company is seeking a Principal Frontend Engineer to lead the architectural design for their DeFi ecosystem. In this role, you'll shape product vision, define the UI framework, and drive innovation within a collaborative, cross-functional team. Ideal candidates will have extensive software ...

Lead Software Engineer AI Driven FinTech (Hybrid London)

RVU Co UK is looking for a Lead Software Engineer to join their Engineering department in London. This hybrid role combines a focus on technical expertise with leadership responsibilities. You will contribute across the full stack and work closely with cross-functional teams, leveraging your experience in Typesc ...

Product Engineer Full Stack AI Driven Fintech (Equity)

Jack & Jill, a VC-backed fintech SaaS startup in London, seeks a Product Engineer to architect full-stack software for automated decision-making. The ideal candidate will have professional experience with React and Node.js, a product-focused mindset, and excel in a fast-paced startup environment. This role offer ...

Senior Frontend Design Engineer: Craft, Systems & UI

A leading software development company in London is hiring a Design Engineer to enhance their design team. The role involves implementing quality UI from design files, evolving the frontend architecture, and maintaining a design system. Successful candidates will have solid expertise in HTML, CSS, and React, wit ...

Full‑Stack Cloud Engineer – Azure/.NET SaaS

NUS Consulting Group in Redhill is seeking a Full Time Software Engineer to join their technical team. This role involves building and maintaining SaaS products using Azure, .NET, React, and SQL. The successful candidate will work on creating infrastructure as code, enhancing server performance, and managing leg ...

Full Stack Engineer (Django/React) – Remote & 4 Day Week

Alma Economics is seeking a Full-Stack Engineer to join our tech team in Greater London. The role focuses on designing and maintaining applications using Django and React, with an emphasis on building responsive frontends and collaborating with a dynamic team. Candidates should possess hands-on experience in dev ...

Associate Full Stack Engineer: AI Powered Travel UX

A leading travel technology company in Manchester is seeking an Associate Software Engineer to contribute across the full stack. This role involves building high-performance web and mobile applications using React and Kotlin, while also implementing AI-driven features. The ideal candidate has a passion for learn ...

C# Developer: .NET, AWS & AI for Finance | Remote

Client Server is seeking a C# Developer / Software Engineer in London offering a salary of up to £80k. This role involves building and maintaining backend services and working across the full stack using C#, SQL, ASP.Net, and React. Applicants should have a good understanding of financial markets, experience wit ...

Frontend Engineer — Real Time GIS Dashboards & Field UX

Arctic Research and Development in Cirencester is seeking a Frontend Software Engineer to architect user interfaces for their Arctic OS. The role involves collaborating with backend and hardware engineers to create intuitive experiences that seamlessly interact with data-rich environments. Candidates s ...

Staff Web Platform Engineer — Lead Tooling & DX

Marks & Spencer Plc in City of Westminster is looking for a Staff Software Engineer to lead the Web Platform team. You will design tooling and pipelines for their web engineers, ensuring high-quality production code and strong technical standards. The right candidate will have deep experience in React, ...

Lead Software Engineer — AI for FinTech (Hybrid, London)

money.co.uk is hiring a Lead or Staff Software Engineer to join the Engineering department. This hybrid role requires developing scalable applications and working across the full stack, utilizing technologies such as TypeScript, React, and Node. Responsibilities include building accessible components, working wi ...

Remote UI Engineer: Mockups & Data Driven Interfaces

Centric Software is looking for a highly skilled UI Engineer specializing in mockups and wireframes to join their remote team. The successful candidate will convert design concepts into visually appealing and functional user interfaces, utilizing expertise in TypeScript, React, and TailwindCSS. The rol ...

Data Engineer Investment Platform

Data Engineer - Investment Platform £90k–£140k + bonus + benefits Hybrid | Central London There's a quiet data problem at the heart of private markets and a London fintech is building the infrastructure to solve it. Every PE fund, credit strategy and infrastru ...

Senior Frontend Engineer PE Backed Software Engineer Up to £100k First Frontend Hire Re[...]

Senior Frontend Engineer - PE backed Software Company - £100k We’re backing a small, elite engineering team inside a fast‑growing, well‑funded tech business that’s quietly building something very powerful! This is a rare first‑frontend‑hire opportunity. They have a team of 7 but this will ...

Mid Senior Front End Engineer — Real Time Finance UIs

A prestigious trading firm in London is seeking a Front-End Software Engineer to join their high-performance team. In this role, you will build visually intuitive web interfaces using React and TypeScript, collaborate closely with traders, and refine complex front-end architectures. The ideal candidate will have ...

Senior C/C++ & Java Engineer — Windows Enterprise

Java Script Works is seeking a Senior C/C++ Developer with Java experience in Birmingham, United Kingdom. The role requires development work in a Windows environment, with previous software development experience in Java being essential. Beneficial skills include frontend experience with JavaScript, TypeScript, ...

Staff Software Engineer Java JVM Tech for Good

Staff Software Engineer / Developer (Java JVM Kotlin AWS React) Hybrid WFH to £120k Would you like to progress your career in an impactful hands‑on Software Engineer role working on Tech for Good? You could be joining a HealthTech Start‑up, founded by two highly successful Cambridge University ed ...

Senior Network Security Engineer

Job Title: Senior Network Security Engineer Location:Remote working, but with occasional meetups in London/Surrey Apply fast, check the full description by scrolling below to find out the full requirements for this role.This is a hands‑on role at an early-stage tech company that’s ...

Full Stack Engineer

We’re partnering with an exceptionally exciting early-stage AI startup building workflow automation software for a highly regulated US industry. The business is already generating strong recurring revenue, growing rapidly month-on-month, and is now hiring one of its first UK-based engineers as it sc ...

Principal Software Engineer Engineering Applications London

Principal Software Engineer - Engineering Applications London About us PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of software. We are building an AI-driven simulation software st ...

Software Engineer AI in Stafford Agena Group

Overview Software Engineer - DAML Application Runtime (UK). Staff-Level Full-Stack Software Engineer. 108 E 16th Street, New York, NY 10003. Duties Design, develop, and maintain robust software solutions using object-oriented programming languages such as Java, C#, Python, or ...

Staff Full Stack Developer – Product Portfolio Management

The Role This role presents a fantastic opportunity for an experienced full stack developer & data engineer to define and co-develop Arm product and solution portfolio infrastructure. You will work with the portfolio team, enterprise data, IT and key users to specify, prototype and ...

Staff Full Stack Developer – Product Portfolio Management

The Role This role presents a fantastic opportunity for an experienced full stack developer & data engineer to define and co-develop Arm product and solution portfolio infrastructure. You will work with the portfolio team, enterprise data, IT and key users to specify, prototype and ...

AWS Software Engineer (Ref: 194893)

AWS Software Engineer (Contract) – Python / FastAPI 6 Month Contract – Fully Remote – Daily Rate: £500 Outside IR35 We’re looking for experienced AWS Software Engineers (contractors) to join an established platform engineering team and help take a proof‑of‑concept Identity & Ac ...

Snr. Software Developer (C# / React / Typescript/ FX Options) £700 £900pd Inside IR35

Hawksworth UK are representing a respected European Investment Bank to recruit a ‘ Senior Developer – FX Options Risk & Valuation Systems' for an initial 6 month assignment. Hybrid working - x3 days in the office per week (London) and x2 days remote per week. ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Senior Software Engineer Fullstack Python React Jobs in United Kingdom Job Search Guide, Trends and Insights