CrawlJobs Logo

Filters

Location
Salary
Clear all filters

Developer United Kingdom Jobs

460 Job Offers

Senior Salesforce Developer
Save Icon
Senior Salesforce Developer needed in London to drive Public Sector Solutions using OmniStudio, Apex, and LWC. You’ll build on the Salesforce Industries Cloud, implementing OmniScripts, Flows, and custom components. Requires 3+ years’ experience, UK Security Clearance (SC) eligibility, and strong...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Java Developer - FIF
Save Icon
Join our FIF team as a Java Developer in London. You will build scalable, high-quality software using Java and the Spring ecosystem. We seek expertise in MS SQL, concurrency, and performance optimization. Enjoy a competitive holiday allowance, private medical care, life assurance, and pension con...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
barclays.co.uk Logo
Barclays
Expiration Date
Until further notice
C# Pricing Developer
Save Icon
Join Barclays as a C# Pricing Developer in London, building and maintaining a cutting-edge options pricing engine for front office traders. You’ll leverage deep C# and .NET expertise, alongside DevOps tools, to deliver high-performance derivatives pricing solutions. Ideal candidates bring experie...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
barclays.co.uk Logo
Barclays
Expiration Date
Until further notice
Senior C++ Developer
Save Icon
Senior C++ Developer sought for a Bristol-based R&D team, building and maintaining core applications. You will leverage advanced C++ expertise to reduce technical debt, mentor developers, and champion best practices. This role offers a chance to shape architectural strategy and deliver high-quali...
Location Icon
Location
United Kingdom , Bristol
Salary Icon
Salary
51000.00 - 63000.00 GBP / Year
planetrecruitment.co.uk Logo
PLANET RECRUITMENT SERVICES LTD
Expiration Date
Until further notice
Senior C++ Developer
Save Icon
Senior C++ Developer sought by a UK leader in document distribution, serving the NHS and government. You will mentor teams, reduce technical debt, and deliver high-quality Windows services in Milton Keynes. Requires deep modern C++ expertise, architectural skills, and cloud experience (AWS/Azure)...
Location Icon
Location
United Kingdom , Milton Keynes
Salary Icon
Salary
51000.00 - 63000.00 GBP / Year
planetrecruitment.co.uk Logo
PLANET RECRUITMENT SERVICES LTD
Expiration Date
Until further notice
Data Visualisation Developer
Save Icon
Data Visualisation Developer role in London with a data-led tech company building insight-driven products. You will transform complex datasets into clear, engaging visual outputs, working closely with product, UX, and engineering teams. Strong experience with visualisation tools and a keen eye fo...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
dataidols.com Logo
Data Idols
Expiration Date
Until further notice
Senior Full Stack Developer
Save Icon
Senior Full Stack Developer role in London with an innovation-led organisation using AI and digital products to solve complex societal challenges. You’ll own a core platform, build new features, integrate AI, and ensure scalability. Requires strong experience in React, TypeScript, C#, and AWS. A ...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
65000.00 - 75000.00 GBP / Year
dataidols.com Logo
Data Idols
Expiration Date
Until further notice
Senior Python Developer
Save Icon
Senior Python Developer needed in Belfast for Citi’s Wholesale Credit Risk Technology team. You will design innovative solutions using Python, FastAPI, and modern AI frameworks like LLMs and RAG. Requires 5+ years of enterprise development experience with CI/CD, Kubernetes, and strong collaborati...
Location Icon
Location
United Kingdom , Belfast
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Productivity And Tooling Java Developer - Assistant Vice President
Save Icon
Join Citi as a Productivity & Tooling Java Developer (AVP) in London. Build microservices with Java, SpringBoot, and Gradle to empower a global developer community. Drive CI/CD pipelines and clean code in a hybrid role. Enjoy 27 days leave, bonus, private medical, and pension.
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Lead Developer – VP – XVA Technology
Save Icon
Lead Developer – VP – XVA Technology at Citi in London. Drive innovation in global finance with hands-on Java expertise and Generative AI. Lead automation, quality assurance, and product ownership in a hybrid role. Enjoy 27 days leave, bonus, private medical care, and continuous learning opportun...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior Java Developer - Fixed Income Algo Technology
Save Icon
Senior Java Developer role in London, focusing on Fixed Income Algo Technology. You will design low-latency, high-throughput trading components using Core Java, Kafka, and Chronicle. Collaborate directly with Traders and Quants to build robust back-testing frameworks and live trading systems. Ben...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Lead Java Developer
Save Icon
Lead Java Developer sought by Citi in London to engineer the future of global finance. You will lead real-time risk enhancements for Credit products, leveraging Core Java, Microservices, and AWS. This senior role demands expertise in JVM tuning, Kafka, and Front Office risk calculations. Enjoy 27...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Senior PHP Laravel Developer
Save Icon
Senior PHP Laravel Developer sought for an AI-forward organization in Greater Manchester, UK. This role goes beyond standard coding, offering influence over architectural decisions and technical strategy. You will build end-to-end features using Laravel and Vue.js, optimize large-scale data proce...
Location Icon
Location
United Kingdom , Greater Manchester
Salary Icon
Salary
50000.00 - 70000.00 GBP / Year
brosterbuchanan.com Logo
Broster Buchanan
Expiration Date
Until further notice
Training Developer
Save Icon
We are seeking a Training Developer to design and implement engaging learning solutions across all business areas in Workington, UK. This role requires expertise in training needs analysis, content development, and digital systems like LMS. You will collaborate with stakeholders, manage proactive...
Location Icon
Location
United Kingdom , Workington
Salary Icon
Salary
Not provided
rullion.co.uk Logo
Rullion
Expiration Date
Until further notice
Java (Kotlin) Developer (Agile, Test-Driven) – Vp
Save Icon
Senior Java/Kotlin Developer needed to engineer the future of global finance at Citi in London. Drive innovation on the Core Prime Brokerage platform using TDD, cloud technologies (Kubernetes), and messaging systems (Kafka). Lead an agile team, champion CI/CD, and enjoy 27 days leave, bonus, and ...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Java Developer
Save Icon
Join Barclays in London as a Java Developer. Design and enhance low-latency, high-throughput connectivity applications for global Futures and Options trading. Utilize Core Java and scripting skills within critical financial systems. Enjoy extensive benefits including private medical care, pension...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
barclays.co.uk Logo
Barclays
Expiration Date
Until further notice
Full Stack Developer
Save Icon
Seeking an SC Cleared Full Stack Developer for a remote, 6-month contract inside IR35. You will build full-stack applications using Python and React.js, with strong SQL and Git skills. This role involves designing PoCs and collaborating with cross-functional teams in a secure, regulated UK enviro...
Location Icon
Location
United Kingdom
Salary Icon
Salary
Not provided
whitehallresources.com Logo
Whitehall Resources Ltd
Expiration Date
Until further notice
Pricing Infrastructure Developer
Save Icon
Join a leading reinsurance firm as a Pricing Infrastructure Developer in London. You will develop and enhance critical pricing tools and systems for the competitive UK life insurance market. This role requires strong programming skills (R, Python, SQL) and experience in actuarial pricing environm...
Location Icon
Location
United Kingdom , London
Salary Icon
Salary
Not provided
eamesconsulting.com Logo
Eames Consulting
Expiration Date
Until further notice
Senior Integrations Developer - Microsoft / .NET
Save Icon
Seeking a Senior Integrations Developer to design and maintain software systems using .NET 8, Azure, and SQL Server. You will develop web integrations and APIs, working with internal teams and third-party solutions. This UK-based role requires strong C# and Azure services expertise, with a focus ...
Location Icon
Location
United Kingdom
Salary Icon
Salary
50000.00 - 55000.00 GBP / Year
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Visualfiles Developer
Save Icon
Join our Liverpool team as a Visualfiles Developer. Design and enhance case management solutions using LexisNexis Visualfiles to streamline business processes. We seek a skilled developer with strong programming and problem-solving abilities for this hybrid role. Enjoy benefits including 25 days'...
Location Icon
Location
United Kingdom , Liverpool
Salary Icon
Salary
Not provided
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice

About the Developer role

Discover the dynamic world of developer jobs, a cornerstone of the modern digital economy. Developers are the creative and technical masterminds behind the software, applications, and systems that power our daily lives. From the websites we browse to the mobile apps we use and the complex enterprise software running global businesses, developers are the architects of our digital future. This profession involves designing, coding, testing, and maintaining the software that drives innovation across every industry.

A developer's primary responsibility is the entire software development lifecycle. This begins with analyzing user needs and then designing robust software solutions to meet those requirements. The core of the role involves writing clean, efficient, and well-documented code in various programming languages. Developers build and maintain the backbone of applications, which includes creating and managing Application Programming Interfaces (APIs), backend services, and database structures. They are responsible for implementing key architectural patterns like microservices to ensure systems are scalable, reliable, and performant. A significant part of their work involves integrating different systems, such as connecting applications to databases, message queues, and third-party services.

Beyond initial creation, developers are tasked with continuous improvement and maintenance. This includes identifying and fixing bugs, optimizing applications for speed and stability, and implementing security best practices to protect against vulnerabilities. They conduct rigorous testing, including unit and integration tests, to ensure software quality. Furthermore, developers collaborate closely with other teams, such as frontend engineers, quality assurance (QA) specialists, and DevOps teams, to enable seamless continuous integration and deployment (CI/CD) pipelines. In many modern environments, developers also work on containerizing applications using tools like Docker and orchestrating them with platforms like Kubernetes. For senior and leadership roles, responsibilities expand to include mentoring junior team members, managing project timelines, making strategic technology decisions, and overseeing a team's output and professional development.

Typical skills and requirements for developer jobs are diverse. A strong foundation in computer science principles is essential. Proficiency in one or more programming languages (such as Go, Java, Python, JavaScript, or C#) is a fundamental requirement. Developers must understand software architecture, including concepts like RESTful APIs, microservices, and event-driven systems. Experience with databases (SQL and NoSQL), version control systems like Git, and operating systems is standard. As the field evolves, knowledge of cloud platforms (AWS, Azure, GCP), containerization, and infrastructure-as-code is increasingly valuable. Crucially, soft skills are just as important; problem-solving abilities, analytical thinking, clear communication, and the capacity to work collaboratively in a team are highly sought after. Most positions require a bachelor's degree in computer science or a related field, or equivalent practical experience. Whether you are an entry-level programmer or an experienced applications development manager, developer jobs offer a challenging and rewarding career path for those passionate about building the technology of tomorrow.