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Onsite senior software engineer Greater London
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CO
02 Oct, 2026
Permanent
Senior Software Engineer
Capital One UK Islington, London, UK
White Collar Factory (95009), United Kingdom, London, London Senior Software Engineer Job Title: Senior Software 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. About 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. In this role, you will design, develop, test, and maintain software products that automate core business processes. You will walk in the shoes of our users, collaborating with Business, Technology, and...
Bright Purple
15 Sep, 2026
Permanent
Senior Software Engineer
Bright Purple London, UK
Senior Software Engineer - London or Edinburgh One of the leading players in the UK and European Energy & Renewables tech sector is hiring for an AI-first Software Engineer to join its core product development team. As a part of this high performing and collaborative group of c.10-15, you will own one of the most powerful, real-time data engines in the entire sector, recognised as the gold standard for decision making and trading As the team are embracing AI-powered development, they are looking for prior experience in Cursor, Github CoPilot, and other coding tools. If high-throughput, high-transaction, low-latency, real-time technologies excite you - this is about as good as it gets! The Benefits: You'll join a multi-award-winning, people-first organisation with a benefits package built around your wellbeing, including: Salary up to £80,000 Hybrid working with 2 days a week in their London or Edinburgh office 26 days' annual leave plus bank holidays...
Civica
04 Sep, 2026
Senior CPS Engineer
Civica London, UK
We’re Civica and we make software that helps deliver critical services for citizens all around the world. From local to state government, to education, to health and care, over 5,000 public bodies across the globe use our software to help provide critical services to over 100 million citizens.  Our aspiration is to be a GovTech champion everywhere we work around the globe, supporting the needs of citizens and those that serve them every day. Building on 21 years of continuous growth and success, we're at a pivotal point on our journey to realize that aspiration. Why you will love this opportunity as Senior CPS Engineer at Civica  Civica Election Services are seeking a creative and self-motivated Senior Software Engineer (SSE) with good exposure to multiple technologies and platforms & who is keen to join a growing software company. This SSE will be primarily responsible for working on our Civica Polling Station (CPS) application. The successful candidate will be part of...
TA
06 Oct, 2026
Permanent
Senior Research Data Scientist/Senior Research Software Engineer
The Alan Turing Institute London, UK
THE ROLE The Alan Turing Institute s Research Engineering Group work to realise cutting edge research as professionally usable software tools and to apply these to address real-world data science and modelling challenges. The Group includes a team of research software engineers and research data scientists. We note the considerable overlap between these emerging roles and embrace the breadth of interdisciplinary skills and diversity of approaches entailed in these fields. We are open to candidates with either a Research Data Science or Research Software Engineering background. The successful candidate will be appointed to the role that best aligns with their skills, experience and interests. In contrast to traditional research careers, we are committed expert collaborators, who join research teams to further the Institute's challenges. We create software that implements research and use it to analyse client data in a readable, reliable, and reproducible fashion. We present...
CO
30 Sep, 2026
Permanent
Senior Software Engineering Manager
Capital One UK Islington, London, UK
White Collar Factory (95009), United Kingdom, London, London Senior Software Engineering Manager Job Title: Senior Software Engineering Manager 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. You can hear from our team about what it's like working at Capital One UK. What you'll do You'll support a cross-functional group of 3 to 4 engineering teams to design, develop and integrate software features that are delightful and vital to the lives of credit card consumers across all walks of life Coach and nurture your engineering managers on how to build, empower and operate teams to achieve their goals Collaborate with product managers and...
Adecco
09 Oct, 2026
Contract
Desktop Support Engineer
£300.00 - £350.00 hourly
Adecco London, UK
Desktop Support Opportunities - London We are currently hiring for two Desktop Support opportunities with our client . While both roles focus on end-user support, they differ in terms of technical requirements and experience . Role Title: 1.Desktop Support Engineer AND 2.DEX TechBar & Desktop Engineer Pay Rate: 350 per day via Umbrella Contract: 6 months, with a strong possibility of conversion to a permanent position Location: London Monday-Friday shift rota About the Client: A leading global financial institution with a strong international presence and a reputation for excellence in banking and technology. This is an exciting opportunity to work within a global, technology-focused environment , supporting modern digital solutions and contributing to a high-quality employee experience across EMEA. DEX TechBar & Desktop Engineer A senior/technical role focused on Desktop Support and Endpoint Management. Key skills:...
DG
07 Oct, 2026
Contract
Google Cloud Platform Engineer
£375 - £450 daily
Damia Group Ltd London, UK
Google Cloud Platform Developer/Architect - Contract Location: London - 5 days on-site Contract: 6 months initially, with potential extension Start Date: Immediate IR35 Status: Inside IR35 Damia Group is a specialist Talent Solution Provider partnering with leading organisations across technology, financial services, defence and other highly regulated industries. We are currently supporting a major organisation with the appointment of an experienced Google Cloud Platform Architect to join a high-performing engineering and cloud platform team. This is an excellent opportunity for an experienced Cloud Architect / Platform Engineer to work on complex, enterprise-scale cloud-native environments, influencing architectural decisions and helping shape cloud engineering standards across multiple teams. The role requires someone who can combine deep hands-on engineering expertise with strong architectural thinking , while being comfortable working with senior...
AT
07 Oct, 2026
Permanent
Wastewater Engineers & Modellers - Various
Advance TRS London, UK
Engineer to Associate South East & East of England Multiple Opportunities Multiple opportunities available following recent framework awards I'm working with a leading multidisciplinary engineering consultancy that has recently secured a number of significant frameworks, creating several opportunities within its growing Wastewater team. The business delivers a diverse range of infrastructure projects across the UK regulated water sector, alongside programmes within aviation, energy, rail and transportation and selected international projects. This provides the opportunity to work across a varied project portfolio, with exposure to different clients, challenges and types of infrastructure. They are looking for experienced Wastewater Modellers and Wastewater Engineers from Engineer through to Associate level, with opportunities available across the South East and East of England. The role Depending on your background and level of experience, you could be involved in:...
Rullion Managed Services
07 Oct, 2026
Contract
IPC Commissioning Planning Engineer
Rullion Managed Services London, UK
IPC Commissioning Planning Engineer Contract Type: Contract Duration: Ongoing Location: Bristol, SDC or Hinkley Point C (HPC) - minimum 3 days per week on site/office Pay Rate: 390 PAYE / up to 530 Umbrella Start Date: 7 December 2026 Background Checks: BPSS - strict random drug and alcohol testing policy applies Hours: 37.5 hours per week, 5 x 7.5-hour days. Core hours 9am-3pm Job Overview: We are recruiting for an IPC Commissioning Planning Engineer to join the Central Controls Team supporting the Hinkley Point C Project as it moves into the commissioning phase. Working within the Planning discipline of Integrated Project Controls (IPC), you will support the management and maintenance of the Level 2/4 Integrated Work Schedule (IWS), ensuring alignment with Level 3 contract schedules and providing high-quality schedule data, analysis and reporting. The role will support informed decision-making and the effective, timely delivery of work across this...
AT
07 Oct, 2026
Permanent
Cleanwater Engineers & Modellers - Various
Advance TRS London, UK
Engineer to Associate South East & East of England Multiple Opportunities Multiple opportunities available following recent framework awards I'm working with a leading multidisciplinary engineering consultancy that has recently secured a number of significant frameworks, creating several opportunities within its growing Clean Water team. The business delivers a diverse range of infrastructure projects across the UK regulated water sector, as well as programmes within aviation, energy, rail and transportation and selected international projects. This offers the opportunity to work across a genuinely varied project portfolio rather than being focused on a single client or programme. They are looking for experienced Clean Water Modellers and Clean Water Engineers from Engineer through to Associate level, with opportunities available across several locations in the South East & East of England. The role Depending on your background and level of experience, you could...
Ja
05 Oct, 2026
Permanent
Principal Drainage Engineer - Multiple Locations
Jacobs London, UK
Principal Drainage Engineer - Multiple Locations In this role, your expertise will directly shape some of the UK's most high-profile transportation programmes. By stepping into a Principal Engineer position, you'll influence the technical direction of major highway and rail schemes for clients such as National Highways, Transport Scotland, Network Rail, the Welsh Government, HS2 Ltd, national contractors, and local authorities. Your leadership will strengthen a team already recognised for excellence, helping expand our growing portfolio across the UK. As the technical discipline lead, you'll set the standard for drainage engineering on multi-disciplinary projects-guiding design quality, challenging assumptions, and driving innovative, sustainable solutions. Your knowledge of key drainage tools, DMRB or UK Rail Standards, SuDS design, and engagement with Lead Local Flood Authorities will directly shape project outcomes. You'll also play a pivotal role in developing others,...
Ja
05 Oct, 2026
Permanent
Senior Drainage Engineer - Multiple Locations
Jacobs London, UK
Senior Drainage Engineer - Multiple Locations In this role, you'll have the opportunity to influence the future of transport infrastructure by delivering drainage solutions that are resilient, sustainable, and ready for the challenges of tomorrow. You'll shape key design decisions, mentor emerging engineers, and collaborate with specialists across the globe to push what's possible in highway and rail drainage design. Your work will directly improve safety, connectivity, and environmental outcomes for millions of people - leaving a tangible legacy across some of the UK's most ambitious and transformative infrastructure programmes. This role can be based out of either our Manchester, Birmingham Leeds or London offices. About the opportunity Step into a role where your drainage expertise shapes some of the most influential transport projects in the UK. As a Senior Drainage Engineer, you'll work at the heart of nationally significant programmes across highways and...
TT
05 Oct, 2026
Permanent
Senior Electrical Engineer - Airfield Ground Lighting
Tetra Tech London, UK
Senior Electrical Engineer - Airfield Ground Lighting Senior Electrical Engineer - Airfield Ground Lighting (AGL) Flexible UK Location Design the Future of Airfield Lighting & Electrical Systems This is an exciting opportunity for a skilled and motivated electrical engineer to join Tetra Tech's Aviation team in a senior technical role. As a Senior Electrical Engineer specialising in Airfield Ground Lighting (AGL), you will lead the design and delivery of critical airfield electrical systems, supporting safe, efficient, and future-ready airport operations. You will play a key role in delivering high-quality engineering solutions across complex aviation projects while working closely with clients, multidisciplinary teams, and industry stakeholders. If you are passionate about aviation infrastructure, technical excellence, and collaborative project delivery, this role offers the opportunity to make a meaningful impact. Purpose & Scope of the Role...
Ja
05 Oct, 2026
Permanent
Structural Design Engineer - Principal
Jacobs London, UK
Structural Design Engineer - Principal At Jacobs, we're shaping a more connected and sustainable world through innovative design and engineering. We're excited to offer an incredible opportunity for a Principal Structural Design Engineer to become part of our growing and inclusive Building Structures team. Here, you'll work on some of the most innovative and high-profile projects across diverse sectors-think cutting-edge airports, advanced technology facilities, data centers, transformative residential/industrial refurbishments, rail infrastructure, and energy developments. This is your chance to make a real impact, tackling complex challenges and delivering world-class solutions that shape the future of our built environment. With projects spanning both local and global markets, you'll enjoy unparalleled opportunities for professional growth, leadership, and career development-all while collaborating with some of the brightest minds in the industry. As a Senior or...
Ja
05 Oct, 2026
Permanent
Hydraulic Engineer Associate Director
Jacobs London, UK
Hydraulic Engineer Associate Director The UK water sector is undergoing the biggest transformation in a generation-and you can be at the heart of it. As a Hydraulic Engineer, you'll help deliver the infrastructure that keeps communities supplied with safe, reliable water while protecting the environment for future generations. Your work will directly support major investment programmes, improve resilience, drive sustainability, and shape the future of water and wastewater services across the UK. This isn't just another engineering role. It's an opportunity to solve complex challenges, influence critical projects, and leave a lasting legacy. What's In It For You? We're committed to helping you thrive-professionally and personally. Work on some of the UK's most exciting and high-profile water infrastructure projects Clear career progression opportunities, whether you're growing your expertise or stepping into technical leadership Flexible ways of working that support...
BG
03 Oct, 2026
Permanent
Intermediate Mechanical Design Engineer
Brush Group London, UK
About The Role Why choose us? BRUSH Group provides the energy solutions that help power our built world . From power transformers to switchgear and engineering solutions, for generations, the BRUSH brand has stood for engineering excellence. We are committed to supporting the global effort for industrial decarbonisation and sustainable development and have set ambitious objectives to achieve our target of net zero greenhouse gas emissions by 2050. What's the role? Part of the BRUSH Group, Eta Projects are a Mechanical, Electrical & Public Health (MEP) engineering design consultancy delivering projects across complex buildings - including healthcare, research, education and commercial sectors. The Intermediate Mechanical Design Engineer will support the mechanical design team in developing coordinated, compliant and efficient mechanical building services solutions. The role will include preparing calculations, technical drawings, specifications, and...
EP
03 Oct, 2026
Permanent
Intermediate Mechanical Engineer
Energi People Lambeth, London, UK
Are you looking for a new role in London? A dynamic consultancy is urgently seeking an intermediate mechanical design engineer to join the growing team in their London office Assist in the design and specification of mechanical building services systems including heating, cooling, ventilation, domestic water, drainage and medical gases. Prepare design calculations, equipment schedules and technical submissions under supervision. Develop schematic and layout drawings in collaboration with CAD/Revit teams. Support the preparation of technical reports, design narratives and schedules for inclusion within tender and construction packages. Undertake and record site surveys and inspections. Liaise and coordinate with architectural, structural, and electrical teams as well as external consultants. Assist with compliance checks against HTMs, HBNs, CIBSE Guides, and Building Regulations. Support senior engineers in client and design team meetings by preparing materials and following...
CO
03 Oct, 2026
Permanent
Staff Software Engineer - Back End
Capital One UK Islington, London, UK
White Collar Factory (95009), United Kingdom, London, London Staff Software Engineer - Back End About this role Do you love shaping the technical landscape and driving innovation across the organisation? Are you passionate about solving complex business problems and supporting multiple teams toward a shared technical vision? At Capital One, you'll be part of a community of technical leaders who drive engineering excellence, foster innovation, and deliver impactful solutions that meet real customer needs. What You'll Do Own and drive the technical strategy for a significant business outcome or technology domain, spanning multiple teams and influencing the overall technical direction Lead and coordinate the efforts of multiple teams, ensuring their collective work aligns with broader business objectives and technology strategy Proactively identify emerging patterns, define and evangelise best practices, and establish reusable frameworks that...
CO
03 Oct, 2026
Permanent
Lead Software Development Engineer - Services
Capital One UK Islington, London, UK
White Collar Factory (95009), United Kingdom, London, London Lead Software Development Engineer - Services About this role Capital One's mission is to change banking for good by bringing humanity, ingenuity and simplicity to banking. Sitting at the core of such values is our Software Engineering department whose primary role is to be an enabler of our ambitions. Capital One is looking for a Senior Software Development Engineer to join a backend team, based in our London office on a hybrid basis. Our Engineers are people who lead by example, build strong and valuable relationships and have the confidence to influence at all levels. We are proud of who we are and what we do and want you to join us at this particularly exciting time at Capital One. What you'll do You will lead a team or cross-functional squad in the delivery of complex and ambiguous projects that support a broader business outcome You will take end-to-end responsibility for technical design,...
Search Consultancy Ltd
02 Oct, 2026
Permanent
Senior Mechanical Design Engineer
Search Consultancy Ltd London, UK
An established Building Services Consultancy is looking to appoint a Senior Mechanical Design Engineer to support the delivery of a growing portfolio of projects across the commercial, residential, and education sectors. This is an excellent opportunity for a skilled mechanical engineer who enjoys taking ownership of projects, developing client relationships, and mentoring junior engineers. You will lead schemes from concept through to completion, working as part of a collaborative multidisciplinary team delivering innovative and sustainable building services solutions. Responsibilities Lead the mechanical design of building services projects across all RIBA stages. Design and specify HVAC, public health, heating, cooling, and ventilation systems. Produce design calculations, technical specifications, reports, and feasibility studies. Coordinate with electrical engineers, architects, contractors, and other consultants. Attend client, design team, and site meetings as the...
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