51 to 66 of 66 Senior Developer Jobs in London

Senior Frontend Developer

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Up to £650pd Umbrella
I am currently working with a London-based financial services client who are actively seeking multiple Frontend Developers for a brand-new business-critical project. What you'll need to succeed Extensive React/Typescript ...

Senior Python Quant Developer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£800 - £900 per day
client is a London-based financial-services company who are actively seeking a Senior Python Quant Developer to join on an initial 12-month contract basis. What you'll need to succeed : Extensive hands-on Python Development experience building REST APIs with FastAPI or similar. Strong quantitative background ...

Senior Front End Developer

Hiring Organisation
Global
Location
Greater London, United Kingdom
Employment Type
Full Time
global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Accepting applications until: 31 July 2026 Job Description Your Role: Senior Frontend React Develope The Shared team builds and maintains the platforms that support the sales, trading and fulfilment of Global's commercial inventory - including … AdPower, order management and pricing portals used across the business. As a Senior Frontend React Developer at Global, you'll own the frontend technical direction across this space, working alongside the Tech Lead. You'll drive architecture decisions, lead delivery across multiple products, and set the standard ...

Senior Backend Developer

Hiring Organisation
Rullion Managed Services
Location
City of London, London, United Kingdom
Employment Type
Contract
Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at senior levels who are passionate about crafting exceptional products. Initially it will be a six-month contract but there is potential for it to be extended. The role … systems and extensive datasets. Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: Demonstrated expertise as a Senior Backend Developer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency ...

Senior Java Developer

Hiring Organisation
mthree
Location
Bromley, Greater London, Bromley Town, United Kingdom
Employment Type
Permanent
Java Software Engineer Join a tier-one global financial institution undergoing a major digital transformation across its capital markets technology estate. You'll play a key role in scaling a mission-critical platform, driving architecture ...

Senior Java Developer - Remote Trading

Hiring Organisation
Harvey Nash
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Online Trading Platform FinTech Client are looking for experienced Senior Java Engineers to join a new team to modernise and simplify critical legacy services using the latest AI Tools and Internally Built LLMs. The client can offer up to £120,000 Basic + Bonus (c25-35k) + Pension This ...

Senior Java Developer - Remote Trading

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 per annum
Online Trading Platform FinTech Client are looking for experienced Senior Java Engineers to join a new team to modernise and simplify critical legacy services using the latest AI Tools and Internally Built LLMs.The client can offer up to £120,000 Basic + Bonus (c25-35k) + PensionThis role ...

Senior Java Developer - Remote Trading

Hiring Organisation
Harvey Nash
Location
City of London, London, United Kingdom
Employment Type
Permanent
Online Trading Platform FinTech Client are looking for experienced Senior Java Engineers to join a new team to modernise and simplify critical legacy services using the latest AI Tools and Internally Built LLMs. The client can offer up to £120,000 Basic + Bonus (c25-35k) + Pension This ...

Senior Engineering Manager, Developer Experience

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
About the team The Developer Experience team owns the internal platform that every the company engineer touches daily: CI/CD pipelines, observability tooling, our developer portal, and an emerging AI platform. It's a high-visibility role: the work you lead directly shapes the productivity of hundreds … looking for an experienced Engineering Manager to take full ownership of this domain, grow a team of seven engineers, and define what great developer experience looks like at the company as we scale. What you'll do Lead and develop a growing team of 5+ highly motivated engineers across ...

Sr. Java Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
# Sr. Java DeveloperDeveloperLondonAugust 20, 202588400 - 98700/monthFull TimeApplication ends: **May 12, 2026**Apply Now### Job DescriptionA Sr. Java Developer is responsible for designing, developing, and maintaining high-quality Java applications. They collaborate with cross-functional teams to deliver scalable and efficient solutions, troubleshoot complex issues, and optimize ...

Senior Android Developer

Hiring Organisation
Revolut
Location
City of London, London, United Kingdom
Employment Type
Permanent
Software Engineer (Android), Remote, UK About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of ...

Senior KDB Developer - Global eTrading

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Location: London, Hybrid Role Type: 12 Month Contract Rate: £700 - £1000 per day This is a client facing role working in a specialised team responsible for building and enhancing a high‐performance eTrading MI and ...

Senior Software Developers/Engineers with Python, Terraform and Go

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Senior Software Developers/Engineers with Python, Terraform and Go Our Client is looking to recruit brilliant Software Developers/Engineers with upwards of 7 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We’re looking ...

Senior Full Stack Software Developer

Hiring Organisation
Corpay
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
About Corpay Cross-Boarder: Corpay Cross-Border helps businesses move money globally, manage currency risk, and streamline international payments. Our technology supports customers operating across markets, currencies, and regulatory environments, where reliability, security, and scale ...

Senior Android Developer

Hiring Organisation
Revolut
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Software Engineer (Android), Remote, UK About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of ...

Senior KDB+ Developer for Global eTrading Analytics (Hybrid)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
A global managed services provider is seeking a contractor to enhance its eTrading MI and Analytics platform. The role involves developing core components, working with quantitative teams, and implementing API-based features. Candidates should have ...