1 to 25 of 116 Senior Developer Jobs in London

Senior Software Developer Join a collaborative technology team where hands-on coding, technical leadership and continuous improvement come together. This opportunity suits someone with strong modern development, API, cloud, database and CI/CD capability who enjoys guiding other developers. If you’ve also worked in the following … roles, we’d also like to hear from you: Senior Software Engineer, Software Developer, Software Engineer, Senior Application Developer, Application Developer, Senior Systems Developer, Systems Developer, API Developer, Integration Developer SALARY: £70,000 - £85,000 per annum + Benefits LOCATION ...

Senior Snowflake Developer Hybrid - 4 days on-site p/w in London Initial Contract to 30th June 2027 Inside IR35 up to £771.94 per day Umbrella Rate Are you a Senior Snowflake Developer who wants to build the data platform behind credit risk reporting … leading financial services organisation? We're recruiting for a contract Senior Snowflake Developer position in a credit risk reporting function that is migrating legacy SQL Server platforms (SSIS, SSRS and SSAS) onto Snowflake, dbt and Python, with Power BI reporting on top. You'll rebuild existing transformation logic ...

Senior Snowflake Developer Hybrid - 4 days on-site p/w in London Initial Contract to 30th June 2027 Inside IR35 up to £771.94 per day Umbrella Rate Are you a Senior Snowflake Developer who wants to build the data platform behind credit risk reporting … leading financial services organisation? We're recruiting for a contract Senior Snowflake Developer position in a credit risk reporting function that is migrating legacy SQL Server platforms (SSIS, SSRS and SSAS) onto Snowflake, dbt and Python, with Power BI reporting on top. You'll rebuild existing transformation logic ...

Senior Developer Consultant (iPaaS & Automation) Rate: Up to £495 per day Duration: 3-6 Months Location: London (Remote with occasional onsite visits) Security Clearance: Active SC Clearance Essential Overview We are seeking a highly skilled Senior Developer Consultant to join a fast-paced transformation programme, delivering … Contribute to technical standards, best practices, and deployment frameworks. Support troubleshooting, optimisation, and continuous improvement of deployed solutions. Essential Experience Proven experience as a Senior Developer, Technical Consultant, or Integration Developer within enterprise environments. Strong experience designing and implementing distributed systems and integration solutions. Experience working with ...

Senior Salesforce Developer 12 Month contract 600 a day Inside IR35 Location - London/Hybrid We are looking for an experienced Senior Salesforce Developer to take a leading hands-on role in the continued development and enhancement of a multi-org Salesforce estate. The organisation currently … have gone beyond theoretical exposure and have personally designed, built and implemented Agentforce agents into a production environment . Key Responsibilities Act as a senior hands-on developer across the Salesforce estate. Design, build, test and deploy scalable Salesforce solutions using Apex, Lightning Web Components (LWC), SOQL ...

Senior Salesforce Developer 12 Month contract 600 a day Inside IR35 Location - London/Hybrid We are looking for an experienced Senior Salesforce Developer to take a leading hands-on role in the continued development and enhancement of a multi-org Salesforce estate. The organisation currently … have gone beyond theoretical exposure and have personally designed, built and implemented Agentforce agents into a production environment . Key Responsibilities Act as a senior hands-on developer across the Salesforce estate. Design, build, test and deploy scalable Salesforce solutions using Apex, Lightning Web Components (LWC), SOQL ...

Senior Python Developer/Backend Software Engineer (Python Data AWS) London/WFH to £90k Are you a Senior Python Developer with data engineering skills? You could be progressing your career in a hands-on Senior Python Developer role at a scaling Fintech … have built a highly complex, real-time energy trading platform to revolutionise energy buying for large industrial and commercial users. As a Senior Python Developer you'll help to build a seamless digital experience that makes complex energy systems simple, powerful and intuitive. You'll be building resilient ...

Senior Python Developer/Backend Software Engineer (Python Data AWS) London/WFH to 90kAre you a Senior Python Developer with data engineering skills You could be progressing your career in a hands-on Senior Python Developer role at a scaling Fintech who have … built a highly complex, real-time energy trading platform to revolutionise energy buying for large industrial and commercial users.As a Senior Python Developer you'll help to build a seamless digital experience that makes complex energy systems simple, powerful and intuitive. You'll be building resilient, modular backend ...

Senior Java Fullstack Developer Salary: £60,000 - £75,000 (depending on experience) Location: Central London Working Arrangement: Hybrid, 2 days per week in the office Employment Type: Permanent Avanti Recruitment is currently recruiting for a Senior Java Fullstack Engineer to join an established, internationally recognised software company … someone who wants to remain technically focused rather than move into people management, whilst working across backend and frontend. The position would suit a Senior Full Stack Developer or a strong mid-level engineer ready to take the next step in their career. The Role ...

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 … part of the 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 ...

Senior Java Fullstack Developer Salary: £60,000 - £75,000 (depending on experience) Location: Central London Working Arrangement: Hybrid, 2 days per week in the office Employment Type: Permanent Unfortunately Sponsorship cannot be provided for this role. Avanti Recruitment is currently recruiting for a Senior Java Fullstack Engineer … someone who wants to remain technically focused rather than move into people management, whilst working across backend and frontend. The position would suit a Senior Full Stack Developer or a strong mid-level engineer ready to take the next step in their career. The Role ...

Title: Senior Developer - AI Enablement (AWS Bedrock, Python/TypeScript, AI Gateway) Location: Remote (UK-based) Rate: Negotiable/Competitive (Inside IR35) Duration: 6 Months Initial Clearance: SC Clearance Required - active clearance used on a government project within the last 12 months. Overview: Contract opportunity for a Senior Developer (AI Enablement) to join a team building a central Enterprise AI Gateway. This hands-on role blends strong production backend and cloud engineering with practical generative AI integration, including LLM APIs, agentic tooling, and enterprise security controls. Key Responsibilities: Design, build, test, and maintain backend microservices ...

Senior ServiceNow Developer Key responsibilities: * Work with the ServiceNow Engagement Lead and business stakeholders to translate agreed requirements into functional and technical solution designs, contributing to and, where appropriate, facilitating solution-design workshops. * Design, configure, develop and implement end-to-end ServiceNow solutions, including Flow Designer workflows, Business … configure and help embed approved ServiceNow AI capabilities, including Now Assist and AI Agents, into new and existing solutions. * Work with the Principal ServiceNow Developer on more advanced agentic use cases and contribute to the platform's AI roadmap. * Design, develop and support integrations between ServiceNow and other enterprise ...

Senior ServiceNow Developer - Permanent - London (hybrid) - £85,000 to 95,000 per annum A fantastic opportunity has arisen for a Senior ServiceNow Developer to join a London-based global law firm. Key Responsibilities Translate business requirements into functional and technical ServiceNow solution designs. Design, configure … independently within Agile/Scrum environments and engaging both technical and business stakeholders. ServiceNow CSA, CAD and/or relevant CIS certification is desirable. Senior ServiceNow Developer - Permanent - London (hybrid) - £85,000 to 95,000 per annum In accordance with the Employment Agencies and Employment Businesses Regulations ...

Senior Snowflake Developer Hybrid - 4 days on-site p/w in London Initial Contract to 30th June 2027 Inside IR35 up to £771.94 per day Umbrella Rate Are you a Senior Snowflake Developer who wants to build the data platform behind credit risk reporting … leading financial services organisation? We're recruiting for a contract Senior Snowflake Developer position in a credit risk reporting fun click apply for full job details ...

Senior Full Stack Developer (React, Python & Azure AI) Location: London/Hybrid Start: ASAP About the Opportunity We are seeking an experienced Senior Full Stack Developer to join a cutting-edge programme focused on delivering AI-powered solutions on Microsoft Azure. This initial workstream is dedicated … work on innovative AI initiatives, cloud-native applications, and large-scale data-driven solutions while helping shape future platform capabilities. The Role As a Senior Full Stack Developer, you will play a key role in designing, developing, and deploying modern web applications that integrate with AI-powered services ...

Senior Snowflake Developer Inside IR35 - 4 days onsite We are currently recruiting for an experienced Snowflake Developer to join our banking client on a major data platform modernisation programme. The successful candidate will play a key role in migrating legacy Microsoft SQL Server workloads to Snowflake, developing … Generative AI and Machine Learning applied to data engineering, analytics or reporting. Modern Data Processing: Real-time or near-real-time data architectures. Senior Snowflake Developer Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants ...

Senior ServiceNow Developer - Permanent - London (hybrid) - £85,000 to 95,000 per annum A fantastic opportunity has arisen for a Senior ServiceNow Developer to join a London-based global law firm. Key Responsibilities Translate business requirements into functional and technical ServiceNow solution designs. Design, configure ...

Senior Python Developer/Backend Software Engineer (Python Data AWS) London/WFH to £90k Are you a Senior Python Developer with data engineering skills? You could be progressing your career in a hands-on Senior Python Developer role at a scaling Fintech ...

Senior .Net Developer, C#/VB.Net, API, SQL, NW London to £85K A Back End Developer is required to join this established financial software house based in North London. They work with some of the leading brands in retail and media, offering financial management systems developed … house by their small dynamic team of tech professionals. Due to growth a Senior .Net Back End Developer is required with expertise in Visual Basic .NET, C#, SQL Server, and SAP Business One integration. The ideal candidate should have strong skills in RESTful API development, database optimization ...

Senior ServiceNow Developer Summer-Browning Associates is currently supporting our central government client, who is seeking a Senior ServiceNow Developer for an initial 9 assignments with the option to extend. Location: Sheffield, Leeds, Newcastle, Manchester, Blackpool - 3 days a week (60%) The ideal candidate will have ...

Senior ServiceNow Developer Maximise your chances of a successful application to this job by ensuring your CV and skills are a good match. Summer-Browning Associates is currently supporting our central government client, who is seeking a Senior ServiceNow Developer for an initial 9 assignments with ...

SENIOR FULL STACK DEVELOPER £70,000 - £85,000 LONDON This is an exciting opportunity for a Senior Full Stack Developer to join a growing technology business that is investing heavily in its platform and engineering capabilities. You'll play a key role in rebuilding and enhancing ...

them, it's deeply embedded within our DNA. Invest in us and we'll invest in you!. Job DescriptionWe are seeking an experienced Senior OutSystems Developer to oversee the design, development, and deployment of enterprise-grade applications using the OutSystems low-code platform. The successful candidate will … have a proven track record of leading technical teams, delivering robust software solutions, and applying industry best practices in Agile environments. As a Senior Developer, you will take responsibility for ensuring quality standards, mentoring team members, and providing technical expertise in software development, systems design, and deployment. ...

display and foster them,itsdeeply embedded within our DNA. Invest in us andwellinvest in you!. Job Description We are seeking an experienced Senior OutSystems Developer to oversee the design, development, and deployment of enterprise-grade applications using the OutSystems low-code platform. The successful candidate will have … proven track record of leading technical teams, delivering robust software solutions, and applying industry best practices in Agile environments. As a Senior Developer, you will take responsibility for ensuring quality standards, mentoring team members, and providing technical expertise in software development, systems design, and deployment. You will ...