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senior backend developer Greater London
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RE
02 Oct, 2026
Contract
Senior Backend Developer
Rullion - Eon London, UK
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 is Hybrid, with one day a week being based in their London. It is a full-time role, 37 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt a Server-less first approach to application design, collaborating within an agile team alongside other backend engineers and product designers. Strategize, develop, test, and deploy new features and experiments. Engage in collaborative coding practices such as pair programming and code reviews within the team. Contribute...
Rullion Managed Services
22 Sep, 2026
Contract
Senior Backend Developer
Rullion Managed Services London, UK
Location: London, EC1M 6PB Contract: 6 Month Contract Hours: Full-time, 37 hours per week Hybrid: 1 day per week onsite in London Rate: TBC Join a dynamic energy provider dedicated to delivering sustainable solutions across the UK. We are looking for an enthusiastic and resourceful Senior Backend Developer who is passionate about building exceptional products and developing robust, scalable solutions. This is an initial 6-month contract, with potential for extension. The role is full-time, 37 hours per week, with one day per week onsite in London. Accountabilities Play a pivotal role within the backend engineering team, helping to build cloud-based applications. Develop backend solutions using Python and AWS Cloud services. Adopt a serverless-first approach to application design. Collaborate within an Agile team alongside other backend engineers and product designers. Strategise, develop, test and deploy new features and experiments. Participate in...
Wa
02 Oct, 2026
Permanent
Senior Backend Developer
Waracle London, UK
Job description Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role working from the London office 2 days a week. As a Senior Developer at Waracle, you will play a pivotal role in shaping robust, scalable systems while fostering an inclusive environment where everyone can thrive. If you love solving complex technical puzzles, supporting peers through thoughtful mentorship, and balancing innovation with code quality, we would love to...
AND Digital
19 Sep, 2026
Senior C++ Developer (Contract)
AND Digital London, UK
Contract Senior C++ Developer Location: London, 2 to 3 days onsite in Kings Cross Contract: Immediate start - 12 week contract Who We Are AND Digital are on a mission to close the world's tech skills gap. We help organisations navigate the future of technology by combining human expertise, emerging tech and AI to deliver better outcomes, faster. Since 2014, we've worked alongside clients to solve complex challenges, build high-performing teams and create lasting capability. Today, we're over 1,300 people across the UK, Europe and the USA, with ambitious plans for continued growth. The Role We're looking for four Embedded C++ Developers to join an in-house backend engineering team working on a highly regulated, safety-critical medical technology product. You'll own a self-contained area of the application, taking work from initial design through to merged, tested and documented code. Depending on your experience and the team's needs, this could include areas such as alarms,...
Pontoon
09 Sep, 2026
Contract
Senior Full Stack Developer
£700 - £750 daily
Pontoon London, UK
Adecco Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. Job title: Senior Full Stack Developer (Front End - Java / Angular / Solidity) Location : London (5 days per week onsite) Contract: 12 months with possible extension Rate : 700 - 750 inside IR35 Overview We are looking for experienced Senior Full Stack Engineers to join a high-performing engineering team building and enhancing modern enterprise applications. This is a hands-on development role for engineers who enjoy working across the full technology stack, delivering scalable web applications, cloud-native services, and modern user experiences. The...
Barker Ross
02 Oct, 2026
Permanent
HR Advisor
Barker Ross London, UK
HR Advisor - Build Your Future with a Global Leader Are you ready to accelerate your HR career within a forward-thinking, international organisation where your impact will truly matter? We're looking for an ambitious, driven, and people-focused HR Advisor to join a market-leading, globally recognised business at an exciting stage of growth. This is more than just a role-it's an opportunity to become a trusted partner to senior leaders, shape workplace culture, and develop your expertise in a fast-paced, high-performing environment. Why This Role? As the organisation continues to expand, the HR function plays a pivotal role in enabling success. You'll be at the heart of that journey-supporting strategic growth while gaining exposure to complex HR challenges and real career progression opportunities within a multinational business. Based from the Brixton office, you'll also have the opportunity to travel across multiple sites around the South East and Kent areas building strong,...
FG
02 Oct, 2026
Permanent
Dynamics 365 Functional Consultant
FDM Group London, UK
About The Role FDM is a global business and technology consultancy seeking a Dynamics Functional Consultant to work for our client within the Public Sector. This is initially a 6-month contract with very good prospects to extend and will be a remote role that can be based anywhere in the UK. Our client is seeking a Dynamics Functional Consultant to support the delivery and implementation of Dynamics 365 and Power Platform solutions. The role will focus on configuring the platform to meet business and end user needs, contributing to solution design, and supporting build, deployment, and defect resolution activities. Candidates must hold BPSS clearance and be eligible for SC clearance. Responsibilities Support the delivery and implementation of Dynamics 365 and Power Platform solutions in line with project goals and delivery cycles. Configure Dynamics 365 to meet business and end user needs, including workflows and Power Automate solutions. Collaborate with...
FG
02 Oct, 2026
Permanent
Microsoft Purview Consultant
FDM Group London, UK
About The Role FDM is a global business and technology consultancy seeking a Microsoft Purview Consultant, specialising in unstructured data governance, to work for our client within the Lloyd's Market and marine insurance sector. This is initially a 12-week contract with very good prospects to extend and will be a hybrid role based in London, with attendance at the client site as required. Our client is seeking an experienced consultant to deliver the discovery, classification and governance of unstructured information across its Microsoft 365 and on-premises data estate. You will configure Microsoft Purview Information Protection capabilities, develop a sector-appropriate sensitivity-label taxonomy and introduce automated classification and data loss prevention controls. Working with IT, compliance and legal stakeholders, you will translate technical findings into practical governance recommendations and contribute to the documentation required for testing, deployment...
CO
02 Oct, 2026
Permanent
Lead Android Engineer
Capital One UK Islington, London, UK
White Collar Factory (95009), United Kingdom, London, London Lead Android Engineer Job Title: Lead Android Engineer Location: London - Hybrid Working Pattern: 3 days in-office (Tuesday-Thursday) and 2 days remote. Our Mission We're on a mission to be a force for good in lending. Throughout our almost 30-year history, we've consistently been recognised as a great place to work; in 2026, Capital One was officially ranked 9th in the UK's Best Workplaces list. Hear from our team about what it's like working at Capital One UK. You and the Role Working in and across tech teams is a natural part of our outcome-based culture, so you'll have plenty of opportunity to talk, coach and learn with many great and diverse individuals. As part of our mobile platform engineering team, you will set the pace for multiple mobile engineering teams and take ownership of the fully native mobile apps that our customers love. Please apply if you are...
Heathrow Airport
02 Oct, 2026
Permanent
Service Manager
Heathrow Airport London, UK
With 80 million passengers passing through our airport each year, it takes hundreds of systems, platforms and networks to keep our airport running smoothly, 24 hours a day, 365 days a year. Join us, and you'll thrive on the buzz of providing the technology, data, cyber and digital capabilities that run all the services you'd expect to see in a city, and more. Tech at Heathrow isn't typical. The scale and non-stop nature of our airport make it truly unique. Our Data, Digital and Technology team are leading the way in innovations that will make our airport more efficient, resilient and competitive in an increasingly digital marketplace, as well as keeping Heathrow safe and secure. Every day will test your skills and give you the opportunity to make your mark. We're constantly looking for new ways to help Heathrow transform and grow, responding to the changing needs of passengers, colleagues and partner businesses. It means the chance to work on a huge variety of inspiring...
Wa
02 Oct, 2026
Permanent
Senior Android Developer
Waracle London, UK
Job description Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations. This is a Hybrid role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London office or on client site The Role We are looking for a self- motivated Senior Developer, proficient in Android mobile development. In this position, you will drive the end-to-end craft of building, developing, and...
Ad
01 Oct, 2026
Permanent
Senior Back End Engineer
Addition London, UK
Backend Developer - Java/Spring Boot Start Date: ASAP Contract Outside IR35 £475 per Day Duration: Until the End of March Location: Fully Remote We're partnering with a fast-paced, technology-led organisation to appoint an experienced Backend Developer on a fully remote contract. This is an excellent opportunity for a hands-on developer with strong Java and Spring Boot experience to build and develop scalable backend systems within a high-volume engineering environment. We're particularly interested in candidates with previous experience in iGaming, betting, FinTech or another sector where reliability, scalability and performance are critical. The Opportunity As Backend Developer, you'll work as part of an established engineering team to design, develop and improve backend services and microservice-based applications. You'll use Java and Spring Boot to create reliable, scalable solutions, develop REST APIs and support systems handling high...
Gleeson Recruitment Group
01 Oct, 2026
Permanent
Private Client Tax Manager
Gleeson Recruitment Group London, UK
Private Client Tax Manager City Hybrid 3 days in office Advise international families and individuals, with direct access to the partners Work with a highly collaborative private client tax team at a mid-tier firm, advising high and ultra-high net worth individuals and families on complex UK and cross-border tax matters. This is an advisory-led role for someone who wants to spend their time on planning, structuring and client relationships, backed by strong compliance experience. Why join Advisory-led work. You'll provide practical, clear advice on residency, global mobility, offshore trusts and structures, and international succession and estate planning, not just compliance. Direct partner access. You'll work closely with an International Tax Partner and collaborate with partners across the firm, with a high degree of autonomy and real exposure to senior decision-makers. Complex, varied clients. The client base is international, with offshore...
Ja
01 Oct, 2026
Permanent
Principal Ecologist (UK wide)
Jacobs London, UK
Principal Ecologist (UK wide) Are you ready to take your ecological career to the next level? Join Jacobs' UK Ecology Team as a Principal Ecologist and become part of a dynamic, forward-thinking organisation that's making a real impact-locally and globally. We're hiring nationwide, with opportunities available in our offices across Birmingham, Bristol, Cardiff, Edinburgh, Glasgow, Leeds, London, Manchester, Newcastle, Peterborough and Reading. Wherever you're based, you'll find a welcoming team and exciting projects waiting for you. At Jacobs, we don't just offer jobs-we build careers. You'll be joining a respected and ambitious company with a strong reputation for excellence and innovation. Our commitment to your growth is backed by: Global Career Framework - chart your path with clarity and purpose Chartership Academy Programme - support to achieve professional accreditation Employee Networks & Communities of Practice - connect with over 200 ecologists in the UK &...
Calibre Search
30 Sep, 2026
Permanent
Senior Structural Design Engineer
Calibre Search London, UK
Senior Structural Engineer Central London There are plenty of Structural Engineering roles in London. This one is a little different. I'm working with a major multidisciplinary Engineering Consultancy that is looking to strengthen its London Structures team with a Senior Structural Engineer, with much of the workload centred around secure, technically demanding projects for the MOD, Ministry of Justice and wider public-sector estate. It means the work tends to be considerably more involved than simply designing another commercial office or residential scheme. Projects can include new-build facilities, upgrades and extensions to existing assets, refurbishment, structural assessment and investigation, strengthening works and the adaptation of buildings where security, resilience, buildability and the constraints of an operational site all need to be considered alongside the structural design itself. The Consultancy has a long-established presence across defence, government...
Aldwych Consulting
30 Sep, 2026
Permanent
Project Manager
Aldwych Consulting London, UK
Project Manager - Infrastructure London Construction Consultancy Permanent Big business opportunities. Small team exposure. A career with room to grow. I'm recruiting on behalf of an established, multidisciplinary construction consultancy looking to appoint a Project Manager to join its growing Infrastructure team in London. This is a particularly interesting opportunity for someone who wants the backing, resources and project portfolio of a large consultancy, but with the close-knit environment and individual exposure of a much smaller team. You'll be joining a business with an impressive presence across the built environment, working alongside experienced professionals on a varied portfolio of infrastructure projects, including rail, aviation, civil engineering and Environment Agency schemes. The team is small enough for you to make a genuine impact, take ownership and build strong relationships with senior colleagues and clients, while benefiting from the wider...
RT
30 Sep, 2026
Permanent
Operations Manager
Reed Talent Solutions London, UK
Key Responsibilities: Support the end-to-end operational delivery of a major launch event in Germany. Manage key elements of the event operations budget, including forecasting, cost tracking, and reporting to the Head of Operations. Negotiate supplier and contractor costs to ensure maximum value and cost efficiency. Work effectively within defined budget parameters and adapt to changing financial requirements. Collaborate closely with the Senior Operations Manager, Head of Operations, venue partners, exhibitors, and internal teams to support all build and breakdown activities in line with Health & Safety regulations and Clarion EMEA standards. Manage the development of risk assessments and ongoing health & safety planning. Manage the maintenance of accurate and compliant health & safety documentation for the event, producing a complete and verified Health & Safety file. Attend relevant health & safety training sessions and engage proactively...
Rullion Managed Services
26 Sep, 2026
Contract
Senior Flutter Engineer
£650 - £750 daily
Rullion Managed Services London, UK
Senior Flutter Engineer Full-time Inside IR35 Hybrid 1 office day London Farringdon office address: 47-53 Charterhouse St, London, EC1M 6PB Join a dynamic energy provider dedicated to sustainable solutions in the UK. We are seeking an experienced Senior Flutter Engineer to join a fast-paced development team delivering high-quality mobile applications. You will play a key role in designing, developing, and maintaining cross-platform applications using Flutter, while contributing to architecture decisions, code quality, and engineering best practices. Initially it will be a six-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, 37 hours per week. If this role feels right, send us your CV. Accountabilities: Design, develop, and maintain scalable Flutter applications for iOS and Android. Collaborate with Product Managers, UX/UI Designers, and Backend...
Gleeson Recruitment Group
25 Sep, 2026
Permanent
Private Client Tax Manager
Gleeson Recruitment Group London, UK
Private Client Tax Manager City Hybrid 3 days in office Advise international families and individuals, with direct access to the partners Work with a highly collaborative private client tax team at a mid-tier firm, advising high and ultra-high net worth individuals and families on complex UK and cross-border tax matters. This is an advisory-led role for someone who wants to spend their time on planning, structuring and client relationships, backed by strong compliance experience. Why join Advisory-led work. You'll provide practical, clear advice on residency, global mobility, offshore trusts and structures, and international succession and estate planning, not just compliance. Direct partner access. You'll work closely with an International Tax Partner and collaborate with partners across the firm, with a high degree of autonomy and real exposure to senior decision-makers. Complex, varied clients. The client base is international, with offshore structures, dual...
FG
23 Sep, 2026
Permanent
Manager - Restructuring Advisory
FRP Group London, UK
Company Description About FRP FRP is a leading national business advisory firm based in the UK. With over 900 team members, including more than 100 partners, we specialise in Corporate Finance, Debt Advisory, Forensic Services, Financial Advisory, Restructuring Advisory and Real Estate Advisory . Operating from 35 offices across the UK, Isle of Man and Cyprus, we are dedicated to helping clients navigate complex and difficult situations to create, preserve, and recover value. Our approach is known for being honest, clear, and considered. We provide strategic solutions that cater to a broad range of businesses, from multinational organisations to small enterprises. Our commitment is to deliver expert advice and support, ensuring our clients can make informed decisions and achieve their goals. Job Description Role overview As a Manager within our Restructuring team, you will play a pivotal role in delivering complex restructuring, turnaround, and insolvency...
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