1 to 25 of 32 Remote/Hybrid Senior Developer Jobs in the City of London

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering lifecycle. You’ll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker ...

Senior Java Developer | Travel-tech Senior Java Developer | £300-400/day | Outside IR35 | Fully Remote within Europe A fast-growing travel-tech organisation is embarking on a major product evolution and is looking for an experienced Senior Java Developer to join their team. … both web and mobile clients. Contribute to shared architecture, functional models, and backend design patterns to unify services across the organisation. Required Skills & Experience Senior-level expertise building and maintaining commercial, production-scale applications . Deep proficiency in: Java Springboot (server-side development, API design) MySQL (performance optimisation, complex ...

Senior Front End Developer Senior Front End Developer – Global Workforce Technology Innovator – London (Tech stack: React, React Native, TypeScript, JavaScript (ES6+), HTML, CSS, Component Libraries, Design Systems, State Management (Redux, Zustand, MobX, Apollo), Web & Mobile UI/UX, Accessibility, Front End Architecture) Our client began over … team-people who blend craftsmanship with creativity, and who take pride in building products that solve meaningful, real-world problems. If you’re a Senior Front End Developer who loves making an impact, this is your chance to join a company where your work genuinely matters. This ...

Senior Developer - £100k - London - Python - C# We are working with a financial services company based in London who is looking for a Senior Developer to join their growing team. This company focuses on using modern technology to solve financial issues and implement cutting edge trading strategies. ...

Senior Developer - £400PD - Remote We are seeking a skilled and collaborative Senior Developer to join our engineering team. In this role, you will contribute to the design, development, and maintenance of high-quality backend services and infrastructure platforms. You will work across a modern technology stack ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

Senior Backend Developer (C#/.Net) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Backend Engineer with a .Net (C#) focus for a Trading House that build cross asset trading systems. The FinTech are building from … ground up and currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Backend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from ...

Senior Developer - Healthcare Projects Location: UK Remote Rate: £(Apply online only) Inside IR35 Duration: 6 months Start: January (BPSS clearance required before start; SC likely to follow) Fully Remote Need NHS Experience We're seeking Senior Developers to join a high-profile healthcare programme delivering modern, secure ...

Senior Derivatives UI Developer/Lead Banking London This is a new and exclusive opportunity for a Senior Derivatives UI Developer/Lead to join my thriving investment banking client as they are expanding their software development team who lead on derivatives projects Role details Title … Senior Derivatives UI Developer/Lead Employer: investment bank Permanent role salary £100,000- £130,000 plus bonus and pension Location: London City and home working hybrid- 50/50% Requirements: Java, React, UI Skills, business knowledge in derivatives/risk and pricing We're looking ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

experienced Frontend Developer looking for a new challenge and to work for an AI startup with an important mission? 🚀 Senior Frontend Developer – AI Data Security 🚀 Location : Hybrid working 1-3 days a week in central London (King’s Cross) Salary : up to £135,000 + bonus + … time to join the team as they are growing across multiple areas of the business, having just secured over £17mil in funding. As a Senior Frontend Developer, you will: Have 6+ years experience as a Frontend Software Engineer Experience developing with: React, Typescript, HTML, CSS A desire ...

Senior Frontend Developer (React.js) | Brand New Trading Payments Desk | £130,000 + Bonus + Benefits | London Hybrid I am looking for a Senior Frontend Engineer with React focus for a Trading House that build cross asset trading systems. The FinTech are building from the ground … currently expanding their team to work on a completely greenfield build, payments platform. As a Senior Frontend, your role will be to come in and build out a new Payments platform working very closely with another engineer to redesign parts of the system and lead from the front ...

Senior Backend Developer 40 hours per week Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Start date: January 2026 Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers … senior levels who are passionate about crafting exceptional products. Initially it will be a three-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London. It is a full-time role, 40 hours ...

funds, Asset Managers, listed Corporates, high-growth tech companies and many more. Learn more about why we do what we do here. The role: Senior Python Developer Join our lean UK-based technology team as a Senior Python Developer, where you'll play a pivotal role ...

Senior Fullstack Engineer - Fintech Scale-Up (Java, Angular, Azure) Titles: Senior Fullstack Engineer Tech Stack: Java | Spring | Azure | Angular Location: London (Hybrid - 2-3 days/week) Package: £85-95k + 20% bonus The Company: Growing fintech working with major banks on business banking products, providing solutions … serving thousands of businesses. The Role Hiring a Senior Fullstack Engineer to build scalable Java microservices for core banking platforms. Take ownership of key components and work with a talented team on high-performance financial solutions. What you'll do as a Senior Fullstack Engineer: Design and develop ...

Senior Python Developer – Multi-Billion Dollar Hedge Fund - Mortgage Technology - London - Hybrid – Up to £300k TC My client, a leading UK hedge fund with $70 billion in AUM, is seeking to appoint a Senior Python Developer within its technology organisation. Our client is undertaking … pivotal role as the firm continues its migration away from legacy systems and enhances its bespoke internal platforms. The Role As a Business Engineering Developer, you will: Build, enhance, and maintain applications supporting mortgage origination, valuation, analytics, and reporting. Develop production-ready Python code to automate manual processes ...

Senior Frontend Engineer Full remote role with office in London, 12 month contract, Outside IR35 A global consumer-facing technology organisation is refining its web strategy to focus on building secure, scalable, and high-quality web experiences that support multiple brands and empower Marketing teams. As a Senior ...

Senior Python Engineer — Fully Remote | High Ownership | Modern Backend Systems I’m hiring for a Senior Python Engineer who wants meaningful ownership, technical depth, and the freedom to work from anywhere. This role is ideal for a seasoned engineer who’s built large-scale systems, cares about clean …/ML-powered features Improving performance, reliability, and scalability across core systems Leading design discussions and influencing long-term architecture Collaborating with a sharp, senior team in a low-ego, high-impact environment What We’re Looking For 6–12+ years of professional Python engineering experience Strong background ...

Senior Frontend Engineer – Join a profitable FinTech Scale-Up 🚀 💰Up to £110,000 🏡Hybrid working – once a week onsite in London 💻React, TypeScript, API experience We’re partnered with a leading FinTech scale-up who are transforming how small businesses access finance to grow and scale. The business ...

Senior Front Office Developer | Commodities & Energy Trading | C# .NET | Azure | 110k | London (Hybrid) We are looking for a Senior Front Office Developer to join a high-performing trading technology team in London, focused on commodities and energy markets . This is a hands-on role building ...

digital agency, specialising in developing brands and digital experiences for global 'tech for good’ clients. We are on the hunt for a talented Frontend Developer to join our small, fully remote team as a full-time Frontend Web Developer specialising in Shopify. We are in search ...

Sr. Full Stack Developer - Asset Management Firm - London/Manchester (Hybrid) - Basic salary of up to £85,000 + Bonus and Additional Benefits package Hays are currently working exclusively with a leading asset management firm assisting them in the recruitment of an experienced Full Stack Developer … work in a hybrid capacity, 3 days per week in office, in either Central London or Manchester.This is a great opportunity for an experienced developer to join an established development team within a high-end financial services firm. The role We're looking for an experienced and enthusiastic full ...

Title: Senior Kotlin Developer Client: Leading Trading Firm Rate: Up to £850 p/d Duration: 6 Month - Rolling Location: London - Hybrid We are looking for a Java Developer, with strong experience working in the finance sector, to join a leading trading firm based in London ...

Python Developer - Python, Django, AWS, Microservices OB have partnered with a industry leading Prop-Tech company, who are digitalising the Real Estate industry, and are currently expanding their engineering team, with a multiple headcount for Mid-Senior Python Developers. In this role, you'll be working … small squad of Engineers, to help scale their platform as they grown, add new features and design new API's. Python Developer - Python, Django, AWS, Microservices Key skills and experience required: 5+ years of experience with Backend Development Strong experience with Python & Django Microservices architecture knowledge AWS, Kubernetes & Docker ...

Angular Developer – Contract Outside IR35 Location: London/Hybrid/Remote Start: Early January Duration: Short-term contract (circa 6–8 weeks) with potential to extend Contract Type: Day rate/Contract- Rate Flexible DOE Overview We are working with a creative digital agency seeking an experienced Angular Developer ...