Midsenior Fullstack Developer Pythonreact 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 Full Stack Engineer, C#/.NET Scale Global Platform

Lorien in Manchester seeks a Lead Full-Stack Developer to spearhead the development of their proprietary platform in the betting and gaming industry. You will lead the development team, ensuring the delivery of scalable and high-performance software solutions. Ideal candidates will have strong expertise in C# .N ...

Generalist Full Stack Engineer for Charities

A tech-driven charity platform in Greater London is seeking an experienced full stack developer to play a crucial role in shaping their innovative software. The candidate will be responsible for writing front-end and back-end code in JavaScript and TypeScript, and will work collaboratively on architecture and fe ...

Security Consultant: Data Security & Risk Strategy

A leading technology company is seeking an Application Developer to innovate and solve complex problems within various projects. You will be involved in translating system requirements into code and collaborating with teams to implement secure solutions. A strong technical background in programming and security ...

Full Stack Dev (TypeScript/Node) SaaS for Industry

A leading SaaS company in the UK is looking for an enthusiastic developer to join their team in Bristol. The ideal candidate will work on developing and maintaining new features for their B2B platform, providing support to clients and enhancing cloud infrastructure. This role offers opportunities for skill devel ...

Senior Account Executive FinTech & Enterprise DevTools

A technology company is seeking a Senior Account Executive to manage complex sales cycles, drive customer adoption, and engage with technical stakeholders. The ideal candidate has over 5 years of experience in enterprise B2B SaaS sales, preferably with developer tools, and a proven track record of exceeding sale ...

Senior Director – Co Living Development & Design (London)

A high-end design studio located in London is seeking a senior professional to join their team and expand offerings in the developer-led co-living sector. Applicants must have excellent experience in this sector, with strong knowledge of local planning teams and a solid design background, ideally with over 10 ye ...

Hypervisor Tools Engineer Automation & DevOps for AHV

A leading enterprise software company is seeking a Software Developer to design, develop, and maintain internal tools for their Hypervisor (AHV). This role emphasizes collaboration in a hybrid work environment, requiring coding skills mainly in Python or Rust. Candidates should possess a degree in Computer Scien ...

Fabric BI Engineer: Azure Data Platform & Power BI

A leading data solutions company is looking for a BI Developer to design and build scalable BI solutions on a modern data platform in Brentford. The role involves collaborating with data architects and business stakeholders, optimizing data pipelines, and ensuring best practices in governance and security. Ideal ...

Senior Backend Engineer — AI Powered Platform (Onsite Bristol)

A dynamic start-up in Bristol is searching for a Senior Backend Developer with strong Python expertise and experience in AI integration. The candidate will design scalable backend systems, mentor junior developers, and ensure high performance and security standards. Responsibilities include developing AI-powered ...

Remote Full Stack Next.js & React Engineer

A technology company specialized in IP protection is looking for a Full Stack Next.js / React Developer. This role involves designing and building high-performance web applications in a hybrid or remote work setup. Candidates should have 5+ years of software development experience and strong skills in Next.js an ...

Senior Python Data Engineer — REST APIs & AWS Lambda

A dynamic software development company in London is seeking an experienced developer with a strong background in Core Python (3.7+) and REST APIs. The ideal candidate has a minimum of 5 years’ experience, possesses strong problem-solving skills, and is comfortable in an Agile workspace. Familiarity with AWS Lamb ...

Platform Engineer: Cloud & Kubernetes, On‑Site London

A leading tech firm is seeking a Platform Engineer to join their team in London. The role focuses on building and maintaining scalable cloud-native infrastructure with a strong emphasis on Kubernetes and automation. Candidates should have experience with AWS, Google Cloud, or Azure, as well as knowledge of conta ...

Senior Java API Engineer – Cloud FIX & Low Latency Trading

A financial services firm in Greater London seeks an experienced API Developer to create robust trading APIs in the cloud. You will maintain and support IG's FIX APIs, contributing to the IG Prime division's roadmap while collaborating with various stakeholders. Candidates should possess around 5 years of Java e ...

Senior Java Engineer for AI Driven APIs (Hybrid)

An AI-native consulting firm in Manchester seeks a skilled developer proficient in Java API development. The successful candidate will collaborate with a team to create high-quality digital products, integrate third-party services, and mentor peers. The role emphasizes best engineering practices in a supportive ...

Senior Platform Engineer Scale Infra & Fast Delivery

A leading payment solutions provider in the UK is seeking an Infrastructure Engineer to help shape their infrastructure and empower product teams with a top-class developer experience. The role requires expertise in Infrastructure, CI/CD practices, and cloud platforms like AWS. You'll be involved in driving solu ...

Software Engineer High Performance I/O & Storage

A technology and data company in Crawley is seeking a Software Developer specializing in high-performance I/O and storage systems. The role involves designing and developing backend services and APIs for efficient data access across distributed environments. Ideal candidates have strong software development expe ...

Full Stack Software Engineer (TypeScript, React, AWS) London

A leading IT firm in London is seeking a Software Developer to join their engineering team. The successful candidate will have at least 3 years of experience in full-stack development and proficiency in TypeScript, React, and Node.js. Strong understanding of cloud services and RESTful APIs is essential. The posi ...

Senior Software Architect C#/.NET & React for Renewables

A leading renewable energy technology firm in Nottingham is looking for a Senior Software Developer. You will lead the design and development of software solutions using modern C# .NET and React. The role involves mentoring developers and shaping the technology strategy. Ideal candidates will have over 5 years o ...

Senior iOS Engineer Flight Tech & UI Craft

A leading aerospace company in the UK seeks a Software Developer to create high-quality applications across iOS, iPadOS, and watchOS platforms. The ideal candidate has a minimum of 3 years in software development, is proficient in SwiftUI and UIKit, and has experience with REST APIs. Collaborating with designers ...

Senior Embedded GUI Engineer C++/Qt on Hardware

A technology company in Colchester is seeking an experienced Applications Developer to join their team. This role involves delivering high-quality application features and user interfaces primarily using C++ and Qt. The position requires strong experience with embedded systems and collaboration with various engi ...

Senior Software Engineer, Market Making Platforms

A global financial services platform is seeking a Market Making Senior Software Developer in Greater London. This crucial role involves delivering technology solutions to enhance market making capabilities across diverse asset classes. The ideal candidate will possess strong skills in JavaScript and cloud servic ...

Senior C# Software Lead for Scientific Tools

A leading scientific technology company in High Wycombe is seeking a Senior Software Developer to join their team. The role involves developing high-performance software solutions in C# for applications in various scientific fields. The ideal candidate is experienced in people management and passionate about tea ...

Java Backend Engineer Production Reliability & Debugging

A technology services company in the UK is seeking a 3rd Line Back End Developer. This role involves investigating and resolving live system defects, developing and deploying fixes using Java, and collaborating with other teams to improve stability. The ideal candidate should have experience in supporting produc ...

Senior Java Backend Engineer for Scalable Quote API

A leading retail company in London is seeking a Java engineer to enhance developer experience and modernise its core systems. You will work on building components for a significant transformation project, with responsibilities including CI/CD pipeline management and migration to cloud services. Ideal candidates ...

Senior Java Engineer Cloud Microservices (Hybrid London)

A leading consultancy based in the UK seeks an experienced Senior Java Developer for a 12-month contract to work on critical cloud-native platforms. This hybrid role involves designing high-performance Java microservices and event-driven architectures utilizing Kafka and AWS. Ideal candidates should have substan ...

Vue 3 Frontend Engineer | Hybrid, Up to £75k

A leading eCommerce solutions provider in Billericay is seeking a Front End Developer / Engineer specializing in Vue 3. This mid-senior level role includes owning projects, collaborating with designers, and mentoring juniors in an Agile environment. The position comes with a competitive salary of up to £75k, bon ...

Senior Python Engineer AI Agents & Team Lead

A leading engineering consultancy in Greater London is seeking a Senior Python Developer to design, develop, and maintain applications and APIs. The candidate will lead a small development team and integrate AI Agents with various systems. Required skills include strong Python development, experience with LangGr ...

Game Engine R&D Intern: Build Scalable Tools

A major gaming publisher in Greater London is seeking a Game Engine Developer to create scalable tools and systems for their global network of studios. The ideal candidate should have a strong proficiency in C++ and a solid understanding of game engine internals. This role involves collaboration across internati ...

Senior Backend Web Engineer for Game APIs & Tools

A leading game development company seeks an experienced Back-end Online Developer to build and support internal and external web APIs for their game engine team. This back-end role emphasizes JavaScript expertise, distributed API experience, and collaborating across teams to improve systems. The position allows ...

Senior Frontend Engineer — React/Next.js, TS & Data UI

A technology company based in Liverpool is seeking a Frontend Developer to create user-centric web applications. The ideal candidate will work with React and Next.js, focusing on responsive design and data visualizations. This role offers a salary of up to £75,000 depending on experience, with strong career stab ...

Senior UX/UI Frontend Engineer (Angular)

A leading logistics and technology firm in Birmingham is seeking an experienced UX/UI Developer to modernize and enhance user interfaces for critical business platforms. The candidate will collaborate with teams to create effective UI solutions, ensuring accessibility and high performance. Required skills includ ...

Senior Software Engineer Creatures Tools & Pipelines Lead

A leading visual effects company is looking for a Senior Software Developer to join their team in Greater London. This role involves software development and team management, contributing to the development of frameworks and tools for Creatures technology. Ideal candidates should have strong skills in C++ and Py ...

Software Engineer: High Performance I/O & Storage Backends

A technology company in Crawley is seeking a Software Developer specializing in high-performance I/O and storage systems. The role requires expertise in C, C++, Go, or Python and a strong background in building backend services and distributed systems. The ideal candidate will design and enhance services for dat ...

Senior Salesforce Architect & Tech Lead

A medical device company based in London is seeking a Lead Salesforce Developer to manage custom solutions on the Salesforce platform. The candidate will be responsible for leading a team, developing Salesforce applications, and ensuring operational stability. Ideal applicants should have over 7 years of experie ...

Senior Android Engineer (Kotlin) — Remote/Hybrid, Equity

A leading tech company in the dating sector seeks an experienced Android Developer specializing in Kotlin. This role allows candidates in the London area to work in a hybrid setting with specified in-office days and remote flexibility. You will work on innovative applications, collaborating with a diverse team w ...

Java Backend Engineer – Incident Response & Reliability

A technology solutions firm in Greater London seeks a skilled 3rd Line Back End Developer to tackle complex issues in live systems. The role requires a strong background in Java and server environments, with responsibilities that include diagnosing defects, developing solutions, and collaborating with various te ...

Software Engineer Intern: Build, Learn & Launch

A consulting firm in the United Kingdom is seeking a Software Developer to craft, develop, test, and maintain systems that improve customer experience. The ideal candidate has a bachelor’s degree in computer science and over 2 years of experience. Key responsibilities include coding, adhering to technical standa ...

Senior Tools Engineer: Build Scalable, Cross Game Tools

A leading gaming company in Greater London is seeking a Senior Tools Developer to innovate and maintain their tooling infrastructure. The role involves designing tools and collaborating with diverse teams to optimize workflows across projects. Ideal candidates will have excellent C++ and Python skills, strong co ...

Embedded Systems Software Intern (Kernel/Drivers)

A leading AI hardware company based in Bristol is seeking a software developer focused on low-level software, including embedded systems and device drivers. Candidates should have a Bachelor’s or Master’s degree in relevant fields and experience with languages like C, C++, and Python. Responsibilities include wr ...

Senior Sybase & APEX DBA for Banking Compliance

A leading technology solutions provider is seeking an experienced APEX Developer with strong Sybase DBA expertise to support a UK-based banking environment. This hands-on role focuses on onboarding Sybase databases into a compliance tool, developing dbDoot rules, and building ETL integrations from Sybase to Orac ...

Senior Full Stack Engineer: React & Node.js (Hybrid)

A leading technology company in Manchester seeks an experienced software developer to build scalable web applications using React and Node.js. You'll work with product owners and designers to enhance features, ensuring high performance and quality. The role offers flexible hybrid working, 25 days annual leave, e ...

Senior .NET Data & Product Analytics Engineer

A leading insurance technology provider is seeking a Senior .NET Developer to enhance their product analytics capability. The successful candidate will work on feature development and data analytics for their award-winning platform. Responsibilities include defining KPIs, designing data pipelines, and maintenanc ...

Enterprise Node.js/TypeScript Full‑Stack Engineer

A global financial services firm is seeking a Full Stack Developer specialized in NodeJS and Typescript to join their Enterprise Technology team. The role involves designing and maintaining high-quality solutions within the Engine Room platform, contributing to API gateways and ensuring robust technical solution ...

Hybrid AI Software Engineer I – London

A technology company in London is seeking a skilled developer to join their team. In this role, you will engage in code reviews and collaborate on architecture design, leveraging AI tools to enhance development. The ideal candidate has a Bachelor's degree or equivalent experience and is proficient in a managed l ...

Senior Full Stack Innovator (Hybrid) – London

A leading consulting firm in the UK seeks a Senior Full Stack Developer to design and deliver scalable application solutions utilizing cloud platforms like Azure and AWS. The role demands expertise in backend development, REST APIs, and modern technologies including Python and React. You'll collaborate with cros ...

Full Stack Engineer for AI Powered Finance (London)

A leading investment management firm in London is seeking a Full Stack Software Developer to build and maintain web applications using Angular and C#. The ideal candidate will have a strong background in full-time software development, proficient in backend technologies like C#. Responsibilities include collabor ...

Senior Orchestration Platform Engineer Hybrid London

A leading technology consultancy in Central London is seeking a Senior Software Developer for a 12-month contract. You will lead the design and development of a new orchestration platform critical for trading and risk management. The role requires a minimum of 7 years in software engineering, expertise in multip ...

Python Software Engineer – Hybrid London, Up to £140k

An elite tech firm in London seeks a Software Developer (Python) offering a competitive salary of up to £140,000 plus bonus and package. The role involves working on some of the highest performing technology platforms worldwide, collaborating with a select group of top talent. The company values its Software Eng ...

Senior Software Engineer & Engineering Lead

A global financial administration leader is seeking a Lead Software Developer to build and mentor an engineering team in Edinburgh. Responsibilities include high-quality solution delivery and collaboration with various stakeholders. The role offers opportunities for continuous learning and development while ensu ...

Senior Software Engineer — Market Making Platform

A financial services platform in London seeks a Senior Software Developer to enhance market making capabilities. Collaborating with teams, you will design and maintain intricate applications, ensuring their performance and security. Key qualifications include extensive experience in C# .NET and AWS cloud service ...

🚀 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

    Midsenior Fullstack Developer Pythonreact Jobs in United Kingdom Job Search Guide, Trends and Insights