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

Senior Software Engineer

**London, United Kingdom****Senior Software Engineer**LocationLondon, United KingdomDepartmentEngineeringRequisition IDJOBREQ-2615690**Role description** **The opportunity**Senior Software Engineer to lead design and implementation of our business-critical data platfo ...

Senior Software Engineer

**Brighton, United Kingdom****Senior Software Engineer**LocationBrighton, United KingdomDepartmentEngineeringRequisition IDJOBREQ-2615690**Role description** **The opportunity**Senior Software Engineer to lead design and implementation of our business-critical data pl ...

Senior Software Engineer

**Company Description****Work with Us. Change the World.**At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure co ...

Senior Software Engineer

**Company Description****Work with Us. Change the World.**At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure co ...

Senior Software Engineer

Senior Software Engineer Tech: TypeScript / Kotlin. Back End Agnostics welcome. Office : Remote, but meet up once a month or so in London. Level : Upper Senior or Staff / Principal Level. S ...

Senior Software Engineer

Senior Software Engineer (.NET / C#) | Greenfield Systems Rebuild | Remote | £80,000–£100,000 This is a hands-on senior engineering role with real technical authority. You will be the lead engineer and technical decision-maker on a greenfield rebuild of a mission-critical s ...

Senior Software Engineer

Senior Software Engineer | Media/Subscription | Headless CMS/Paywall Role: Senior Software Engineer Salary: £80,000 plus £10,000 bonus Remote working: 2 days in London office I am working with a B2B Start Up who are looking to hire a Senior S ...

Senior Software Engineer

Role: Lead Python Engineer (Hands-on Team Lead) Location: London – Hybrid (3 days office / 2 days WFH) Salary: Up to 130k base Industry: Fintech Platform We’re working with a profitable, <str ...

Senior Software Engineer

Software Engineer (Go) Location: London - 4 days per week onsite UK Visa Sponsorship: Not possible About the Company: Our client is a thriving B2B FinTech with a market leading ...

Senior Software Engineer

Senior Software Engineer | London | Hybrid | Tech for Good Location: London (hybrid) Salary: £80,000 to £95,000 + equity + benefits Tech stack: • Python (Django, Flask or FastAPI preferred) • ...

Senior Software Engineer

Senior Systems Engineer | Rust London / Hybrid £140k – £200k + Performance Bonus + Equity This client is building high-performance infrastructure powering decentralised markets. The engineering environment is extremely lean, operating in domains where execution s ...

Senior Software Engineer

Senior Software Engineer (Python) | Hybrid/London | £85,000 + Equity High-growth InsurTech modernising how underwriting and risk decisions are made. This is a key hire as the business scales its core platform, with backend engineering and AI-enabled workfl ...

Senior Software Engineer

Position: Senior Software Engineer Location: London – 2 days onsite Salary: Open to discuss Fintop Consulting has partnered with an AI Health-tech partner based in Central London who is looking to hire a Senior Backend Engin ...

Senior Software Engineer

Senior Platform Engineer (Azure / Kubernetes) UAE | On-site | $140,000–170,000 base + Discretionary Bonus We’re hiring a Senior Platform Engineer to own production systems end-to-end, operating distributed and model-driven workloads at scale ...

Senior Software Engineer

Senior Backend Engineer Location: London, Hybrid (2 Days Onsite) Salary: £90,000 - £105,000 + Competitive bonus We're working with a rapidly growing tech for good company that is transforming how data, automatio ...

Senior Software Engineer

We’re working with a technology‑driven organisation reinventing how operations are conducted, building systems that are safer, smarter, and dramatically more environmentally responsible. Location: London or Porto The Role We’re seeking a Se ...

Senior Software Engineer

Senior Software Engineer (TypeScript / Python, FinTech, AI) London (Hybrid) £95,000 The Opportunity Join a high-growth, regulated fintech building next-generation infrastructure at the intersection of traditional finance and di ...

Senior Software Engineer

Senior Software Engineer Are you a developer who loves building products, not just features? Do you thrive at the intersection of robust backend logic, intuitive frontend interfaces, and conversational AI? Are you excited to join a fast-growing, seed-funded st ...

Senior Software Engineer

Senior Full Stack Engineer London, Hybrid, Permanent We are representing a London-based technology venture building AI platforms to transform how enterprise leaders navigate uncertainty. This is a core engineering role w ...

Senior Software Engineer

Senior Software Engineer (Systems & Automation) London, Hybrid, Permanent We are partnering with a high-growth technology firm in London to find a Senior Software Engineer who excels at the intersection of product engineering and operational efficiency. Th ...

Senior Software Engineer

Full Stack Product Engineer (London) We’re looking for a Full Stack Product Engineer to help build and scale a high-growth product in a fast-paced environment. This role is ideal for someone who enjoys working across the stack, shipping features quickly, and solving real us ...

Senior Software Engineer

Senior Java Engineer / SRE London (Hybrid) The company A well-established global fintech business operating large-scale trading platforms across multiple asset classes including equities, leveraged products, futures, options, and digital assets. Th ...

Senior Software Engineer

Senior Software Engineer / Lead Developer This is a hands-on Lead Developer role where you’d be responsible for leading a small team of developers, providing clear direction, and ensuring delivery of scalable, high-quality software across a range of enterprise applications. It’s a mix of te ...

Senior Software Engineer

Senior Software Engineer (C# / .NET) Bristol (Hybrid – 2–4 days in office) £65,000 – £75,000 ISL Talent have been retained by Insphere to help deliver this key software engineering hire. The opportunity <br ...

Senior Software Engineer

About Plessey We’re building the hardware foundation for next-era computing. Plessey is a world-leading technology company driving the next generation of photonic devices and systems. With over 70 years of innovation, we combine research, materials science, process engineering, ...

Senior Software Engineer

Staff Product Engineer - £150,000 + Equity Location: Shoreditch, London About the Opportunity A high-growth AI-first law firm is looking to transform the UK conveyancing market, starting with the legal process behind every property transacti ...

Senior Software Engineer

Senior Software Engineer Location: London (Hybrid / On-site) Salary: £100,000 – £150,000 + equity About the Company We’re working with an early-stage, venture-backed legal technology startup on a mission to transform one of the UK’s mo ...

Senior Software Engineer

Backend Engineer London, England (Hybrid) Permanent My client is looking for a Backend Engineer to join a growing engineering team building modern, cloud-native products that directly impact customer experience and business growth. This is a hands-on role ...

Senior Software Engineer

We're partnering with a fast-scaling fintech that's building the intelligence layer for debt markets. Think financial analysis, credit data, legal and ESG insights, all delivered at speed to some of the biggest names in banking, asset management and law. They need a Senior Software Engineer ...

Senior Software Engineer

Senior Software Engineer Salary: Negotiable (Depending on Experience) Location: North London Area Schedule: 3-days on site and 2-days WFH per week The Opportunity We ...

Senior Software Engineer

Senior Backend Engineer (Python / Go), London (Hybrid), £100,000 - £120,000 + Bonus • Job Title: Senior Backend Engineer • Salary Range: £100,000–£120,000 + Bonus & Benefits • Location: London | Hybrid Work ...

Senior Software Engineer

ABOUT IDBS IDBS helps BioPharma organizations unlock the potential of AI/ML to improve the lives of patients. As a trusted long-term partner to 80% of the top 20 global BioPharma companies 1 , IDBS delivers powerful cloud software and services specifically designed to meet the evolving needs o ...

Senior Software Engineer

ABOUT IDBS IDBS helps BioPharma organizations unlock the potential of AI/ML to improve the lives of patients. As a trusted long-term partner to 80% of the top 20 global BioPharma companies 1 , IDBS delivers powerful cloud software and services specifically designed to meet the evolving needs o ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available TRAVEL: Yes, 10% of the Time **Salary: £44,100 - £66,100** **What’s your possible?** At **Northrop Grumman UK** , you are part of a team driving innovation ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available TRAVEL: Yes, 10% of the Time **Salary: £44,100 - £66,100** **What’s your possible?** At **Northrop Grumman UK** , you are part of a team driving innovation ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time **Salary: £50,700 - £76,100** **Your Opportunity to Define Possible.* ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time **Salary: £50,700 - £76,100** **Your Opportunity to Define Possible.* ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time **Salary: £44,100 - £66,100** **What’s your possible?** At ...

Senior Software Engineer

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time **Salary: £44,100 - £66,100** **What’s your possible?** At ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-18**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-18**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-17**Country:** United Kingdom**Location:** Gloucester, South Gloucestershire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gl ...

Senior Software Engineer

**Date Posted:** 2026-03-18**Country:** United Kingdom**Location:** Manchester, Lancashire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gloucester or ...

Senior Software Engineer

**Date Posted:** 2026-03-18**Country:** United Kingdom**Location:** Manchester, Lancashire**Position Role Type:** Onsite Raytheon UK have a full time, perm opportunity for a Senior Software Engineer to join our specialist teams in Manchester, Gloucester or ...

Senior Software Engineer

Senior Software Engineer (C++ / Embedded) Working with a specialist defence technology business delivering mission-critical systems, we are looking for a Senior Software Engineer to join a high-performing team. You will work across the full lifecycle from architecture and design through t ...

🚀 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