Permanent Senior Software Engineer Jobs in London

1 to 25 of 298 Permanent Senior Software Engineer Jobs in London

Senior Software Engineer - eDV Cleared

London, United Kingdom
NSD
SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW PERMANENT JOB OPPORTUNITY AVAILABLE WITHIN A GLOBALLY LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Permanent job opportunity for a Senior Software Engineer Globally leading defence/cyber security company Salary up to £100,000 plus clearance bonus London based organisation … in an easily accessible location Permanent Software Engineer To apply please call 07704 152 640/0203 854 0120 or email WHO WE ARE? We are recruiting Senior and Lead Software Engineers to work with a multi-national, industry leading National Security client in central London. Due to the nature of the work you must hold … enhanced DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements capture More ❯
Employment Type: Permanent
Posted:

Senior Software Engineer

Greater London, England, United Kingdom
Burns Sheehan
Senior Software Engineer (Python) – Reducing Carbon Emissions with Machine Learning! Python on AWS £90-£110,000 per annum plus stock London Office - 1-2 days a week Are you a Senior Software Engineer with a passion for working with curious, humble colleagues to build exceptional customer-focused products using Python? Do you align with … their principles – “Work as much as you want, where you want” - giving Software Engineers the autonomy and support to perform at their best? Do you want to be part of a period of significant growth and opportunity, shaping elegant solutions to complex challenges and guiding engineering excellence? Then this is a role you should explore... Senior Software Engineer (Python) – We are working with one of the UKs most exciting scale-ups to find them Senior Software Engineers with exceptional knowledge of building great products in Python on AWS. They use machine learning technology to help tackle climate change by reducing carbon emissions. They are at a critical period in their journey and will More ❯
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Senior Software Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Matched Group
Senior Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? scaling FinTech, revolutionising the industry Location : Hybrid - 1-2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user-friendly financial products to consumers. … The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Software Engineer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Optimize components for maximum performance across a vast array of web- capable devices and … the highest quality. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Software Engineer - Experience Required Proven experience as a Full Stack Engineer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda More ❯
Employment Type: Full-Time
Salary: £80,000 - £95,000 per annum
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Senior Software Engineer

London, South East, England, United Kingdom
Noa Recruitment
Senior Software Engineer - Remote UK - £85000 What is in it for you? As a talented Senior Software Engineer you can expect: A supportive and adaptive culture Access to a structured training and career progression plan Opportunities to take the lead on critical projects and enhance your career Great salary - Up to £85,000 base … and Package (neg for the right person) We are helping an innovative technology business scale their Software team in in the UK. Their software powers some of the worlds leading consumer brands across the digital commerce and retail experience software space. Due to continued growth and demand for their products they now urgently need a Senior Software Engineer to join their team. Your role will be to focus mainly on backend engineering within their AI product suite. This role would suit a Senior Software Engineer who has a background in AI engineering or a deep passion for AI. This role is Remote within the UK - the team do meet in More ❯
Employment Type: Full-Time
Salary: £75,000 - £85,000 per annum
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Senior Software Engineer

Greater London, Colliers Wood, United Kingdom
Noa Recruitment Ltd
Senior Software Engineer - Remote UK - £85000 What is in it for you? As a talented Senior Software Engineer you can expect: A supportive and adaptive culture Access to a structured training and career progression plan Opportunities to take the lead on critical projects and enhance your career Great salary - Up to £85,000 base … and Package (neg for the right person) We are helping an innovative technology business scale their Software team in in the UK. Their software powers some of the worlds leading consumer brands across the digital commerce and retail experience software space. Due to continued growth and demand for their products they now urgently need a Senior Software Engineer to join their team. Your role will be to focus mainly on backend engineering within their AI product suite. This role would suit a Senior Software Engineer who has a background in AI engineering or a deep passion for AI. This role is Remote within the UK - the team do meet in More ❯
Employment Type: Permanent
Salary: £75000 - £85000/annum package
Posted:

Senior Software Engineer

City of London, London, United Kingdom
Fyre Global Limited
Senior Software Engineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of Senior Software Engineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance for a Senior Software Engineer to join a small … based in the London City Centre thats building products to make sense of massive data streams. Youll be part of a tight-knit team (around ten people total, five software engineers), working on a genuinely greenfield platform with a modern stack and zero legacy The focus now is on maturing the codebase re-architecting, refactoring, testing, and scaling. As … a Senior Software Engineer, youll play a key role in helping the team evolve from early-stage speed to long-term stability, with the freedom to influence both product direction and engineering quality What youll be doing: Building and scaling a Node.js application that sits at the core of the product Designing and implementing new features for More ❯
Employment Type: Permanent
Salary: £95,000
Posted:

Senior Full Stack Software Engineer

City of London, Greater London, UK
Hybrid / WFH Options
Matched
Senior Full Stack Software Engineer Tech : AWS, NodeJS, TypeScript, JavaScript, ReactJS, React Native Why? start-up financial services, revolutionising the industry Location : Hybrid - 1/2 days in the office (Central London) Our Client A new UK-based financial services provider is launching credit card, personal loans and insurance offerings aimed at delivering fair, flexible, and user … friendly financial products to consumers. The organisation is committed to empowering individuals by enhancing their understanding and control of personal finance through clarity, intelligence, and technology. Senior Full Stack Software Engineer - Responsibilities Design, develop, and maintain advanced applications. Collaborate with cross-functional teams to define, design, and ship new features. Guiding and develop the skills of junior … quality and speed. Troubleshoot and debug to optimize performance. Provide code reviews, feedback, and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols Senior Full Stack Software Engineer - Experience Required Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js More ❯
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Senior Software Engineer

London Area, United Kingdom
RedCat Digital
Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from … backend systems (some frontend too, if you like). This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior Software Engineer will be responsible for leading the design, build and deployment of industry leading software solutions. You’ll work in collaboration with product, design and … the wider engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience • Strong coding experience in either Java, Golang (Go), Python or Scala – multiple would be even better! • Experience with cloud platforms e.g. AWS, Azure, GCP - Google More ❯
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Senior Software Engineer

City of London, London, United Kingdom
RedCat Digital
Working for an industry leading, high-growth SaaS business with some of the biggest brand names in the world as customers, the Senior Software Engineer will build innovative next-gen solutions that are at the forefront of the industry. In this role, the Senior Software Engineer will be given full autonomy, taking ownership from … backend systems (some frontend too, if you like). This area is the future of the company (and the industry!) and as such has strong investment and visibility. The Senior Software Engineer will be responsible for leading the design, build and deployment of industry leading software solutions. You’ll work in collaboration with product, design and … the wider engineering team to improve and scale existing features, as well as build brand new ones. The Senior Software Engineer will have: • Strong backend or full-stack software development experience • Strong coding experience in either Java, Golang (Go), Python or Scala – multiple would be even better! • Experience with cloud platforms e.g. AWS, Azure, GCP - Google More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Formula Recruitment
Contract role : Senior Software Engineer : Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you’ll tackle complex … technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you’ll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS … Key information: Up to £475 per day Outside IR35 9 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role : Senior Software Engineer: Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) *Unfortunately, due to the More ❯
Posted:

Senior Software Engineer

London Area, United Kingdom
Formula Recruitment
Contract role : Senior Software Engineer : Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) An innovative digital consultancy is looking for experienced Senior Software Engineers to design and architect scalable, high-performance systems for a cutting-edge platform being developed for a major client. In this role, you’ll tackle complex … technical challenges as part of an agile team following Scrum methodologies. As a Senior Software Engineer, you’ll set the standard for code quality and best practices, actively contributing to code reviews and collaborative programming sessions with your team. As a Senior Software Engineer, you will be experienced with: C#, .Netcore JavaScript, React.js AWS … Key information: Up to £475 per day Outside IR35 9 months rolling Hybrid Monthly (London) This is an exciting opportunity for a Senior Software Engineer to join a high-performing development team. Contract role : Senior Software Engineer: Up to £475 per day Outside IR35 : 9 months rolling : Hybrid Monthly (London) *Unfortunately, due to the More ❯
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Senior Software Engineer

London Area, United Kingdom
Burns Sheehan
Senior Software Engineer | Blending Music, Science and Technology 💻 Senior Software Engineer 🎶 Incubated Startup - Combining Music, Science and Tech 💰 Up to £110,000 p/a + Equity ⚙️ Stack: Typescript, React, Node/Nest, AWS - FE Leaning (Rust in the stack) We're partnered with a groundbreaking company using advanced technologies and musical expertise to … largest music for media companies behind best known TV and Film soundtracks, they are looking to transform personalised musical experience for mindfulness and wellness. We are looking for a Senior Software Engineer, proficient in Typescript & React with some Node + AWS experience to join a founding team of customer-centric, cross functional engineers. If you are a … Senior Software Engineer looking to join a growing company looking to use music, science and technology to transform wellbeing, this one is for you. Interested? Apply within or reach out to James for more information. Senior Software Engineer | Blending Music, Science and Technology More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Burns Sheehan
Senior Software Engineer | Blending Music, Science and Technology 💻 Senior Software Engineer 🎶 Incubated Startup - Combining Music, Science and Tech 💰 Up to £110,000 p/a + Equity ⚙️ Stack: Typescript, React, Node/Nest, AWS - FE Leaning (Rust in the stack) We're partnered with a groundbreaking company using advanced technologies and musical expertise to … largest music for media companies behind best known TV and Film soundtracks, they are looking to transform personalised musical experience for mindfulness and wellness. We are looking for a Senior Software Engineer, proficient in Typescript & React with some Node + AWS experience to join a founding team of customer-centric, cross functional engineers. If you are a … Senior Software Engineer looking to join a growing company looking to use music, science and technology to transform wellbeing, this one is for you. Interested? Apply within or reach out to James for more information. Senior Software Engineer | Blending Music, Science and Technology More ❯
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Senior Software Engineer C# .Net - relocate to Newcastle!

London, England, United Kingdom
Client Server
Senior Software Engineer/Developer (C# .Net) *Newcastle onsite* to £130k+ Are you a Senior Software Engineer looking to escape the hustle and bustle of London and relocate to somewhere with stunning scenery and a better quality of life (there's also great restaurants and bars!)? You could be joining a rapidly scaling FinTech … company has secure backing and an established Hedge Fund client as a partner, they're creating a finance technology hub bringing a wealth of talent and experience. As a Senior Software Engineer you will collaborate with a small, talented team to deliver the core trading platform within a Microsoft environment using the latest versions of C# .Net … problem solving, working on complex, distributed systems You have expertise with modern C# .Net Core, Python skills would also be of benefit You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns More ❯
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Senior Software Engineer

London Area, United Kingdom
Burns Sheehan
Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior Software Engineer with extensive knowledge of building distributed systems? Looking to join a company who are solving genuine problems … a real impact on projects? If so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative Senior Software Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world leading Cloud platform, the … to build out state-of-the-art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a Senior Software Engineer: Tech agnostic but preferable experience working with Golang, Rust, C/C++ or Java. In-depth knowledge of distributed systems, building solutions at scale where More ❯
Posted:

Senior Software Engineer

City of London, London, United Kingdom
Burns Sheehan
Senior Software Engineer | Distributed Systems | Sustainable Cloud Native Platform 💸Up to £110,000 per annum plus bonus plus stock 🏠Central London office 🖱️Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Senior Software Engineer with extensive knowledge of building distributed systems? Looking to join a company who are solving genuine problems … a real impact on projects? If so... I'm partnered with a very exciting Cloud scale-up who have received record Series A funding and are looking for innovative Senior Software Engineers to join their ambitious team! With a new VP of Engineering who has spent much of their career building out a world leading Cloud platform, the … to build out state-of-the-art, Greenfield code which can focus on being the worlds most accountable and sustainable cloud provider🌳 What they're looking for in a Senior Software Engineer: Tech agnostic but preferable experience working with Golang, Rust, C/C++ or Java. In-depth knowledge of distributed systems, building solutions at scale where More ❯
Posted:

Senior Software Engineer

London, United Kingdom
Tokio Marine HCC
Senior Software Engineer page is loaded Senior Software Engineerlocations: UK - London (20 Fenchurch)time type: Full timeposted on: Posted Todayjob requisition id: 2025-811 Job Title: Senior Software Engineer (Python) Reporting to: Lead Software Engineer Direct Reports: N/A Position Type: PermanentStanding still is not an option in the … solutions which delight underwritersAbout the OpportunityThe London Market Underwriting & Reinsurance Performance team consists of Actuaries, Reinsurance Specialists and Engineers reporting into the Chief Underwriting Officer (London Market).As a Senior Software Engineer with experience of Agile and DevOps working within the Underwriting Performance Innovation team, you will research, design, test, develop and support software solutions to … an Actuarial Model Management platform, working closely with the central Innovation & Analytics function to define our developing Data Platform and identify opportunities to demonstrate its value.Core Responsibilities Collaborate with software engineers, data engineers, and underwriters to define and deliver the future of Property & Casualty underwriting at TMHCC International Continually improve ways of working, responding to change and maintaining focus More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer Full Stack JavaScript

London, United Kingdom
Hybrid / WFH Options
Client Server
Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and … understanding of web development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer Full Stack JavaScript

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and … understanding of web development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯
Employment Type: Full-Time
Salary: £85,000 - £100,000 per annum
Posted:

Senior Software Engineer Python FastAPI Data

London, United Kingdom
Hybrid / WFH Options
Client Server
Senior Software Engineer/Developer (Python FastAPI Data) London to £90k Are you a data centric Software Engineer with strong Python and SQL skills? You could be progressing your career in a senior, hands-on role at a fast growing, global Insurance Underwriting technology provider that focusses on developing a complex SaaS calculation platform … for rapidly growing Cybersecurity insurance markets. As a Senior Software Engineer you will design and develop data centric backend services for the core platform with a focus on Python coding and building FastAPIs within an Azure environment with Databricks. You'll participate in the design and implementation of advanced mechanisms for data ingestion, transformation, mass parallel orchestration … s a hybrid work from home model with three days a week in the high spec London, City office with rooftop bar. About you: You have strong Python backend software engineering skills You have experience of building FastAPIs You have a good knowledge of public cloud services, they're using Azure but experience with AWS or GCP is fine More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

City Of London, England, United Kingdom
Privalgo
Being a Senior Software Engineer at Privalgo We are looking for a dynamic and forward-thinking Senior Software Engineer. We need someone that can hit the ground running, remaining accountable as you work alongside a globally distributed team. As a Senior Software Engineer, you will work with our Architects and Product Team … to bring designs to life. More specifically, you will demonstrate high-quality software development expertise, responsible for developing a secure, high-performance code. You will be confident with the software development life cycle (SDLC) from preliminary system design through to development, onto tests and deployment. We want someone who is passionate and remains curious, always asking why, and … why not, and not afraid to have a voice. As a Senior Software Engineer, you will be a mentor to other less experienced developers, challenging the team to do better. When it comes to Technology initiatives, you’ll be proactive and contribute new ideas, keen to lead the development of new features, work on bug fixes and More ❯
Posted:

Senior Software Engineer TypeScript Full Stack

London, England, United Kingdom
Hybrid / WFH Options
Client Server
Senior Software Engineer (TypeScript Full Stack) London/WFH to £100k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your career in a senior, hands-on Software Engineer role at a successful … office per week) Vitality Healthcare Continuous career development and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a Senior Software Engineer you will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability in mind, across … educated in Computer Science or similar STEM discipline, having achieved a 2.1 or above from a Russel Group/Oxbridge or top 100 global university You are an experienced software engineer with a strong knowledge of best practices and Computer Science fundamentals and experience of delivering complex, data centric software You have advanced analytical and problem solving More ❯
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Senior Software Engineer (React, Node.js, AWS)

City of London, London, United Kingdom
Hybrid / WFH Options
Oliver Bernard
Senior Software Engineer (React, Node.js, AWS) Salary: £90,000 - £110,000. Location: Hybrid in London. Senior Software Engineer (React, Node.js, AWS) - would you like the opportunity to work for a market leading organisation, currently looking to revolutionise the data space? You will be joining a technology team who have a passion for innovation, collaboration … as well as embracing new ideas, technologies and approaches. As a Senior Software Engineer, you will be working closely with Product and design, taking full responsibility and ownership from conception to post-deployment. The company has grown significantly in the last few years and are looking for someone who can join in the process of growing their … building a web application from scratch. · Ideally looking for Backend focused Engineers who are comfortable across the stack so must be happy working this way. If you're a Senior Software Engineer with strong experience working in JS/TS, please apply. More ❯
Posted:

Senior Software Engineer (React, Node.js, AWS)

London Area, United Kingdom
Hybrid / WFH Options
Oliver Bernard
Senior Software Engineer (React, Node.js, AWS) Salary: £90,000 - £110,000. Location: Hybrid in London. Senior Software Engineer (React, Node.js, AWS) - would you like the opportunity to work for a market leading organisation, currently looking to revolutionise the data space? You will be joining a technology team who have a passion for innovation, collaboration … as well as embracing new ideas, technologies and approaches. As a Senior Software Engineer, you will be working closely with Product and design, taking full responsibility and ownership from conception to post-deployment. The company has grown significantly in the last few years and are looking for someone who can join in the process of growing their … building a web application from scratch. · Ideally looking for Backend focused Engineers who are comfortable across the stack so must be happy working this way. If you're a Senior Software Engineer with strong experience working in JS/TS, please apply. More ❯
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Senior Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Prism Digital
Senior Software Engineer | Legacy to Modern | C#, .Net | SaaS Data A fast-growing SaaS business is investing heavily in its tech platform and building out a senior engineering hub in London. They’re on the lookout for a Senior Software Engineer to help drive modernisation, set technical direction, and mentor squads as they … scale. This is a senior, hands-on role. You’ll design and build applications, lead migrations away from legacy frameworks, and ensure the platform is stable, scalable, and fit for the future. Expect to spend plenty of time coding, alongside leading migrations and leading/mentoring 4 engineers. You will have complete autonomy for all things C# .NET in … Comfortable balancing legacy upkeep with platform modernisation Confident with IIS, AWS, TeamCity, Octopus Deploy, SQL Server Bonus points for exposure to Angular or Telerik libraries Prior experience as a senior engineer in SaaS or product-led teams Someone who enjoys mentoring, influencing direction, and staying hands-on Location & working style: Hybrid London role, with 1–2 days a More ❯
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Senior Software Engineer
London
10th Percentile
£80,000
25th Percentile
£87,500
Median
£102,500
75th Percentile
£122,438
90th Percentile
£135,000