1 to 25 of 32 Permanent Applications Developer Jobs in London

Applications Developer

Hiring Organisation
Marsh & McLennan Companies
Location
London, UK
Employment Type
Full-time
United KingdomEmployment type: RegularCategory: TechnologyIndustry: Real EstateSalary: 80000Posted: 2026-10-02 Mercer is seeking candidates for the following position based in the London office: Applications Developer What can you expect? This is a hands-on technical role focused on improving the robustness, stability, and performance ...

Python Developer (Data Applications and AI Engineering)

Location
Greater London, England, United Kingdom
Python Developer (Data Applications and AI Engineering) Contract: 6 to 12 months (longer term available at a lower day rate)| UK based, fully remote | Outside IR35 | Start ASAP My client, a specialist consultancy within Data and AI is looking for a hands on Python developer to join its data science team, working with a client to build data applications and automated pipelines that replace manual processes. You will use AI coding tools every day to speed up how you build, test and deliver. This is a delivery role. You will be embedded ...

React Developer – Frontend Engineer (Trading applications)

Location
Greater London, England, United Kingdom
React Developer - Frontend Engineer (Trading applications) You are here: Home/Job Search/React Developer - Frontend Engineer (Trading applications) Job Title: React Developer - Frontend Engineer (Trading applications) Location: London AMS is the world's leading provider of Talent Acquisition … people to develop to their full potential. The Bank promotes good working relationships and encourage high standards of conduct and work performance. They welcome applications from talented people from all cultures, countries, races, genders, sexual orientations, disabilities, beliefs, and generations and are committed to providing a working environment free ...

Mobile App Developer

Location
Greater London, England, United Kingdom
About the role Ship smooth iOS and Android apps for startups and growing businesses. Responsibilities Build cross-platform mobile apps Integrate APIs, auth and push notifications Publish to App Store and Google Play Maintain and ...

Mobile App Developer (iOS & Android) Mobile Apps View role →

Location
Greater London, England, United Kingdom
Build Megaroam and Megaconnect, the eSIM apps travellers use in 200+ countries. Job overview Team Product · Mobile Apps Location Remote Employment type Full-time Experience 3+ years building and shipping mobile apps Megarefill is a ...

Senior Rapid Application Developer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent
Senior Rapid Application Developer ***Hybrid, 3 days a week in the office 2 days remote*** About the Company Senior Rapid Application Developer (Financial Services, FinTech, Trading, Low Latency, C++, Linux) My client is a leading, fast-growing exchange based in the City of London, operating … DNA. They welcome talented people from all backgrounds and give engineers the opportunity to make a genuine impact. Job Overview Senior Rapid Application Developer (Financial Services, FinTech, Trading, Low Latency, C++, Linux) In this role you will be working with the Product, Infrastructure, QA, and Operations teams ...

Application Developer - Power BI | React

Hiring Organisation
VIQU IT
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £85000/annum
MORELA Application Developer AI Applications & Power BI | Holborn, London Morela is proud to be supporting a London-based AI analytics business in the search for an Application Developer. This is a permanent role based at the client’s office in Holborn, Central London, four days a week … business grows. The Role This is a priority hire. The client is moving its product from Power BI dashboards to AI-enabled web applications, and this role sits right at the centre of that shift. You will keep existing Power BI deployments running smoothly for current clients while building ...

AI Application Developer

Location
Greater London, England, United Kingdom
driven cybersecurity and digital threat analytics centre to enhance the security of industry and government organisations. We are looking for an AI Application Developer to join our innovative team. Application Process Interested candidates are invited to submit their resume, cover letter, and portfolio of relevant projects to info ...

Senior Lead Software Engineer - FICC Electronic Trading Application Developer

Location
Greater London, England, United Kingdom
systems, and building reliable software at scale, you will find strong opportunities to grow here. As a Sr Lead Software Engineer, Electronic Trading Application Developer at JPMorgan Chase in the Fixed Income, Currencies and Commodities Electronic Trading technology team, you will design and build software that supports electronic … Strong analytical and problem-solving skills Ability to work effectively with globally distributed teams and stakeholders Preferred Qualifications, Capabilities, and Skills Experience building trading applications in fixed income, macro, equities, or credit domains Familiarity with front-end technologies such as C#, JavaScript, HTML5, or Angular Knowledge of modern software ...

Senior .NET Umbraco Developer for Enterprise Web Apps

Location
Greater London, England, United Kingdom
Limited in London is seeking a .NET Developer (Umbraco) to join our client in London. The role focuses on delivering enterprise-grade applications using C#, .NET, Razor and MVC within an Agile environment. You will design and build distributed web applications, align with CI/ ...

Application Developer / Software Engineer (AVP)

Hiring Organisation
Citigroup
Location
London, England, United Kingdom
spread your passion and experience to raise the bar for everyone? Do you enjoy working in a collaborative Agile environment and seeing the applications that you build making users happy? If you are excited about technical leadership, then this is the ideal role for you.Prime Brokerage Technology provides solutions … resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standardsApply fundamental knowledge of applications programming and ensure application design adheres to the overall architecture blueprintUtilize knowledge of system flow and develop standards for coding, testing, debugging, and implementationDevelop ...

Senior Rapid Application Developer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 115,000 Annual
Senior Rapid Application Developer Hybrid, 3 days a week in the office 2 days remote About the Company - Senior Rapid Application Developer (Financial Services, FinTech, Trading, Low Latency, C++, Linux) My client is a leading, fast-growing exchange based in the City of London, operating ...

Senior Mobile App Developer (Kotlin)

Location
Greater London, England, United Kingdom
solutions become increasingly critical to our client delivery, we need a skilled developer who can design, build, and maintain high-quality Android applications and contribute to cross-platform development initiatives. This is an excellent opportunity to work on diverse projects across consulting environments, leveraging Kotlin Multiplatform … expand reach and efficiency. Key Responsibilities Design and develop robust Android applications using Kotlin, following best practices and architectural patterns Implement and maintain Firebase services Develop and maintain cross-platform solutions using Kotlin Multiplatform, maximizing code reusability across platforms Enhance and optimize existing mobile solutions, identifying improvement opportunities ...

Senior Mobile App Developer (Swift)

Location
Greater London, England, United Kingdom
diverse projects across consulting environments, with the potential to expand your skillset into cross-platform development using Kotlin Multiplatform. Design and develop robust iOS applications using Swift, following best practices and architectural patterns Implement and maintain Firebase services for real-time push notifications Enhance and optimize existing mobile solutions … user experience Contribute to architectural decisions and evaluate emerging technologies, including Kotlin Multiplatform opportunities for cross-platform development Qualifications Proven experience developing production iOS applications with Swift Hands-on experience with Google Firebase Experience enhancing and optimizing existing mobile solutions Strong understanding of mobile development principles and UI/ ...

Senior Mobile App Developer (Swift)

Hiring Organisation
Netcompany
Location
London, UK
Employment Type
Full-time
diverse projects across consulting environments, with the potential to expand your skillset into cross-platform development using Kotlin Multiplatform. Design and develop robust iOS applications using Swift, following best practices and architectural patterns Implement and maintain Firebase services for real-time push notifications Enhance and optimize existing mobile solutions … user experience Contribute to architectural decisions and evaluate emerging technologies, including Kotlin Multiplatform opportunities for cross-platform development QualificationsEssential: Proven experience developing production iOS applications with Swift Hands-on experience with Google Firebase Experience enhancing and optimizing existing mobile solutions Strong understanding of mobile development principles and UI/ ...

Remote Cordova App Developer - Mobile Apps Engineer

Location
Greater London, England, United Kingdom
Cordova App Developer £450/Outside IR35/Working from Home Cordova App Developer £450 per day (12 Months+/Option of working from Remote/Outside IR35) Length of contract: 12 months+ An experienced Cordova developer to join a team in a long … transport app. You must have proven experience as a mobile developer, with recent experience in designing, developing and deploying mobile applications with Apache Cordova. Location · London, Bristol or Cornwall. · Full option of working from remote. Essential requirements and skills · In-depth knowledge of Apache Cordova · Experience ...

Power Platform Developer: Apps, Dataverse & BI Expert

Location
Greater London, England, United Kingdom
Morgan Hunt is seeking a Power Platform Developer to join a UK public sector programme. You will work across Power Apps, Power Pages, Dataverse, Power Automate, Power BI, and Copilot Studio to improve and support a secure digital platform used across key operations. You will own enhancements, incident ...

Remote Integration Developer: SSIS, ADF, Logic Apps (SC)

Location
Greater London, England, United Kingdom
looking for an experienced Integration Developer with strong SSIS, SQL Server, Azure Data Factory, and Logic Apps expertise to support enterprise-wide integration projects. Key Skills: SSIS & SQL Server Azure Data Factory Logic Apps C# (SSIS Script Tasks) REST/SOAP APIs XML & JSON System-to-system integrations ...

Web Application Developer

Location
Greater London, England, United Kingdom
secure, scalable web platforms and client portals with strong engineering standards and maintainable architecture. You will contribute to full-stack delivery for enterprise web applications, from architecture and implementation to performance optimization and production support. Core Responsibilities. Develop and maintain modern web applications and authenticated portals. Translate project ...

Cordova App Developer £450/ Outside IR35 / Working from Home

Location
Greater London, England, United Kingdom
Cordova App Developer £450/Outside IR35/Working from Home Cordova App Developer £450 per day (12 Months+/Option of working from Remote/Outside IR35) Length of contract: 12 months+ An experienced Cordova developer to join a team in a long … transport app. You must have proven experience as a mobile developer, with recent experience in designing, developing and deploying mobile applications with Apache Cordova. Location London, Bristol or Cornwall. Full option of working from remote. Essential Requirements and Skills In-depth knowledge of Apache Cordova Experience ...

Web App Developer - React/Python, Azure Cloud, Hybrid

Location
Greater London, England, United Kingdom
Talan UK is seeking a Web Application Developer to join a cross-functional team building modern Python-based web applications. You will work across Python services and React/Vite frontends, contributing to reliability, performance, and developer experience. In this hybrid London role, you’ll collaborate ...

Hybrid Power Platform Developer: Apps, Automate & SharePoint

Location
Greater London, England, United Kingdom
Healthcare UK is seeking a Power Platform Developer to balance hands-on development with application support, platform governance and stakeholder engagement. You’ll enhance Power Apps, Power Automate and SharePoint Online solutions while contributing to digital transformation across the organization. The role is based near London Bridge with ...

Remote Python Developer: Data Apps & AI Engineering

Location
Greater London, England, United Kingdom
Xcede is seeking a hands-on Python Developer to join its Data Applications and AI Engineering team. The role is UK-based with fully remote work, outside IR35, for 6 to 12 months. You’ll build data applications and automated pipelines, leveraging AI coding tools ...

Laravel 10 Full-Stack Developer: REST APIs & Desktop/Mobile Apps

Location
Greater London, England, United Kingdom
Neguinho Motors Ltd is seeking a skilled Full-Stack Developer to join our London team. You will build and maintain modern stateless applications with RESTful APIs, leveraging Laravel 10, PHP 8.2, Backpack Admin, Electron.js, React Native, and MySQL. This role covers web and desktop applications, ensuring ...

App Developer - Stride

Location
Greater London, England, United Kingdom
Developer - Stride Manchester (Hybrid) | Reporting to CTO Free StrideOne membership plus family and friends discount About Stride ‘Normal’ health is no longer good enough. Normal is code for tired, stressed, barely functioning and slowly declining, and calling that a life. We think everyone has a right to better ...