SeniorSoftwareEngineer Node.js/AWS/React London (Hybrid, 3 days onsite) Are you the kind of SeniorSoftwareEngineer who enjoys taking something fast-and-scrappy and turning it into something scalable, elegant, and genuinely robust? This is a chance for a SeniorSoftwareEngineer 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 SeniorSoftwareEngineer, 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 ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
SeniorSoftwareEngineer/Developer (Data) London/WFH to £115k Global-leading FinTech is seeking a SeniorSoftwareEngineer to take ownership of a new team responsible for data focussed strategic enhancements on their core platform. The organisation is a pioneer in the field of cross-asset securities and derivatives post-trade processing … technology and have created ground-breaking, adaptable software that produces secure and scalable solutions for peak operational efficiency and optimum business performance for their clients. This is a great opportunity to accelerate your career alongside established business and technology leaders and deepen your finance experience. As a SeniorSoftwareEngineer, you'll work on strategic initiatives … You'll join colleagues in the London office three days a week with flexibility to work from home the other two days. About you: You're a data centric, SeniorSoftwareEngineer with a strong knowledge of modern software engineering best practices You have strong development experience with C#, C++ or Python You have advanced SQL More ❯
SeniorSoftwareEngineer | 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 SeniorSoftwareEngineer 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 SeniorSoftware 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 SeniorSoftwareEngineer: 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 ❯
london (city of london), south east england, united kingdom
Burns Sheehan
SeniorSoftwareEngineer | 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 SeniorSoftwareEngineer 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 SeniorSoftware 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 SeniorSoftwareEngineer: 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 ❯
SeniorSoftwareEngineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed SoftwareEngineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management. As a SeniorSoftwareEngineer within the trading … You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a SeniorSoftwareEngineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension … Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this SeniorSoftwareEngineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from More ❯
Senior .NET SoftwareEngineer - An esteemed investment management company is seeking an experienced Senior .NET SoftwareEngineer to lead the development of robust and scalable financial solutions. This high-impact role provides an opportunity to shape technology strategies and mentor junior engineers within a collaborative and growth-focused team. Responsibilities for the Senior .NET SoftwareEngineer: Drive the design, development, and deployment of complex software solutions using .NET technologies. Architect scalable systems to support evolving business requirements and ensure high performance. Take ownership of key projects, managing technical deliverables and ensuring deadlines are met. Provide technical leadership, guiding junior engineers and promoting best practices within the team. Collaborate with … stakeholders to align technical implementations with business objectives. Skills & Experience for the Senior .NET SoftwareEngineer: Extensive experience in .NET development, including expertise in C#, ASP.NET Core, and microservices architecture. Strong knowledge of database systems, including SQL and NoSQL technologies. Demonstrated success in delivering complex technical projects within a financial or investment setting. Experience with cloud platforms More ❯
london (city of london), south east england, united kingdom
Miller Maxwell Ltd
Senior .NET SoftwareEngineer - An esteemed investment management company is seeking an experienced Senior .NET SoftwareEngineer to lead the development of robust and scalable financial solutions. This high-impact role provides an opportunity to shape technology strategies and mentor junior engineers within a collaborative and growth-focused team. Responsibilities for the Senior .NET SoftwareEngineer: Drive the design, development, and deployment of complex software solutions using .NET technologies. Architect scalable systems to support evolving business requirements and ensure high performance. Take ownership of key projects, managing technical deliverables and ensuring deadlines are met. Provide technical leadership, guiding junior engineers and promoting best practices within the team. Collaborate with … stakeholders to align technical implementations with business objectives. Skills & Experience for the Senior .NET SoftwareEngineer: Extensive experience in .NET development, including expertise in C#, ASP.NET Core, and microservices architecture. Strong knowledge of database systems, including SQL and NoSQL technologies. Demonstrated success in delivering complex technical projects within a financial or investment setting. Experience with cloud platforms More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Harrington Starr
SeniorSoftwareEngineer Key Technologies: C#, .NET, React, AWS, Docker, Kubernetes City of London, United Kingdom Perm Role: £80,000 - £120,000 Harrington Starr has partnered with a Global Financial Services Vendor and they are looking for a Senior C#, .NET SoftwareEngineer to join their growing team! This role provides the perfect opportunity … communication skills. Unrestricted right to work in the UK. This role offers hybrid working, with an office location based in the City of London. This role will suit a SeniorSoftwareEngineer, with expert C#, .NET experience and commercial use of React having a direct impact from the get-go. Apply below and if you have any More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Capsa AI
At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring seniorsoftware engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : SeniorSoftwareEngineer - Full Stack Location : London, UK (Hybrid, In-Person … defense companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A seniorsoftwareengineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a softwareengineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Capsa AI
At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring seniorsoftware engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : SeniorSoftwareEngineer - Full Stack Location : London, UK (Hybrid, In-Person … defense companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A seniorsoftwareengineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a softwareengineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Tenth Revolution Group
About the Job SeniorSoftwareEngineer- Hybrid (2 days on site)- London- £100K+ Incredible Benefits Are you passionate about working with cutting-edge technology and looking to grow your skills in a forward-thinking environment? We’re currently looking for SeniorSoftware Engineers who enjoy being hands-on and thrive on solving complex technical challenges. … the personal insurance space. The venture combines the agility and innovation of a start-up with the stability and backing of a major UK financial services provider. As a SeniorSoftwareEngineer , you’ll collaborate closely with Product Owners, subject matter experts, and other team members to deliver high-quality outcomes through continuous development and release cycles. More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Tenth Revolution Group
About the Job SeniorSoftwareEngineer- Hybrid (2 days on site)- London- £100K+ Incredible Benefits Are you passionate about working with cutting-edge technology and looking to grow your skills in a forward-thinking environment? We’re currently looking for SeniorSoftware Engineers who enjoy being hands-on and thrive on solving complex technical challenges. … the personal insurance space. The venture combines the agility and innovation of a start-up with the stability and backing of a major UK financial services provider. As a SeniorSoftwareEngineer , you’ll collaborate closely with Product Owners, subject matter experts, and other team members to deliver high-quality outcomes through continuous development and release cycles. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Holistx
SeniorSoftwareEngineer Location : London (hybrid, mostly on-site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a SeniorSoftwareEngineer to join their in-house product team, working on a major initiative that’s redefining how complex data … authentication and access control strategies Collaborate closely with a small team of developers and testers to deliver scalable, high-performance systems About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Holistx
SeniorSoftwareEngineer Location : London (hybrid, mostly on-site) Salary : Competitive Our client is a global technology business developing next-generation data management solutions for the energy sector. They’re looking for a SeniorSoftwareEngineer to join their in-house product team, working on a major initiative that’s redefining how complex data … authentication and access control strategies Collaborate closely with a small team of developers and testers to deliver scalable, high-performance systems About you 6–8 years of experience in software development Strong backend experience, ideally with exposure to modern frontend frameworks Skilled in at least one modern programming language (Go, C#, Python, etc.) Confident with relational databases and understanding More ❯
SeniorSoftwareEngineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a SeniorSoftwareEngineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
london (city of london), south east england, united kingdom
La Fosse
SeniorSoftwareEngineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a SeniorSoftwareEngineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
Job Title: SeniorSoftwareEngineer Reporting to: Lead Engineer Role Purpose: As a SeniorSoftwareEngineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Overloop
SeniorSoftwareEngineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a SeniorSoftwareEngineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
SeniorSoftwareEngineer II – ML Platform & GenAI (relocation to dubai) Location: Dubai, United Arab Emirates As part of the Machine Learning Platform & Generative AI Applications team, this role sits at the intersection of engineering, data science, and product development. The team builds the foundational tools that power intelligent and engaging user experiences across multiple business verticals. This … is an exciting opportunity for a SeniorSoftwareEngineer with expertise in GenAI and platform engineering to contribute as a hands-on technical leader. You will help shape the next generation of AI-driven services by building scalable infrastructure and driving innovative applications from concept to production. Key Responsibilities Design and implement scalable services, APIs, and workflows … Collaborate with cross-functional teams including product managers, designers, and data scientists to translate high-level ideas into executable engineering tasks. Qualifications & Requirements 7+ years of professional experience in software engineering with strong design principles and system architecture knowledge. Proficiency in programming languages such as Python, Java, Go, or similar. Experience working with Generative AI and ML infrastructure, including More ❯
london (city of london), south east england, united kingdom
oryxsearch.io
SeniorSoftwareEngineer II – ML Platform & GenAI (relocation to dubai) Location: Dubai, United Arab Emirates As part of the Machine Learning Platform & Generative AI Applications team, this role sits at the intersection of engineering, data science, and product development. The team builds the foundational tools that power intelligent and engaging user experiences across multiple business verticals. This … is an exciting opportunity for a SeniorSoftwareEngineer with expertise in GenAI and platform engineering to contribute as a hands-on technical leader. You will help shape the next generation of AI-driven services by building scalable infrastructure and driving innovative applications from concept to production. Key Responsibilities Design and implement scalable services, APIs, and workflows … Collaborate with cross-functional teams including product managers, designers, and data scientists to translate high-level ideas into executable engineering tasks. Qualifications & Requirements 7+ years of professional experience in software engineering with strong design principles and system architecture knowledge. Proficiency in programming languages such as Python, Java, Go, or similar. Experience working with Generative AI and ML infrastructure, including More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Novatus Global
plans do not stop here; we are on the lookout for top-tier talent to join us on our journey and enable our next phase of success. The Role: SeniorSoftwareEngineer Location: London HQ Hybrid working and flexible hours: 4 days in the office and 1 WFH. Novatus Global is seeking an experienced SeniorSoftwareEngineer to join our growing team. This role is critical in helping us design, build, and scale our platform. You will be hands-on with system design, data engineering, and solution delivery. Strong experience with Snowflake is essential, as you will play a lead role in architecting and optimising our Snowflake data platform. Key Responsibilities Serve as a … application architecture to ensure performance, scalability, and security. Use prior experience building products on the Snowflake platform to help drive innovation for Novatus’ En:ACT platform. Build high-quality software by developing reliable applications and data pipelines (ETL/ELT) and writing clean, maintainable, and testable code. Collaborate closely with Product, Data, and Regulatory Insights teams to translate complex More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Novatus Global
plans do not stop here; we are on the lookout for top-tier talent to join us on our journey and enable our next phase of success. The Role: SeniorSoftwareEngineer Location: London HQ Hybrid working and flexible hours: 4 days in the office and 1 WFH. Novatus Global is seeking an experienced SeniorSoftwareEngineer to join our growing team. This role is critical in helping us design, build, and scale our platform. You will be hands-on with system design, data engineering, and solution delivery. Strong experience with Snowflake is essential, as you will play a lead role in architecting and optimising our Snowflake data platform. Key Responsibilities Serve as a … application architecture to ensure performance, scalability, and security. Use prior experience building products on the Snowflake platform to help drive innovation for Novatus’ En:ACT platform. Build high-quality software by developing reliable applications and data pipelines (ETL/ELT) and writing clean, maintainable, and testable code. Collaborate closely with Product, Data, and Regulatory Insights teams to translate complex More ❯
City of London, London, United Kingdom Hybrid / WFH Options
GoodFit.io
B2B companies out there. In order to keep up with demand, and accelerate development of the platform, we are expanding our core engineering team. About the role: As a SeniorSoftwareEngineer at GoodFit, you'll be at the forefront of our technological innovation and product delivery. We're looking for someone who can navigate the fast … with pragmatism will be key to our success. You will: Be part of a small team, working in a fully remote-first environment, spanning Europe and UK As a seniorsoftwareengineer, own understanding of business problems, design, implementation and release of critical features across our stack Design and develop scalable, efficient solutions primarily using JavaScript/… and wider organisation Be comfortable in a rapidly changing startup environment We'd love to hear from you if you have: You have 5+ years of professional experience in software development, with a proven track record of delivering impactful projects You're highly proficient in JavaScript and TypeScript, with extensive experience in AWS services (e.g., Lambda, Step functions, AppRunner More ❯
Senior C++ SoftwareEngineer New C++ contract role working on a greenfield project for a client within the financial domain. Healthy rate for this one and 2 days a week in the office. What you will be doing: As a Senior C++ SoftwareEngineer, you will be involved in: Analysis of user requirements and … into manageable chunks Implementation of new features and feature enhancements Leading code reviews and enforcing best practice within a small, agile, focused team What you will need: Extensive commercial software development experience using C++ Unix/Linux experience Relevant degree in a numeric discipline, or equivalent work experience Excellent written and spoken English By applying to this job you More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venture Up
Senior Golang Software Backend Engineer Fully Remote/UK Working Hours A couple of Senior Golang Software Backend Engineers are required for an exciting and innovative Software house company based in London and Hong Kong. The company operates at the forefront of sports, entertainment, and cryptocurrency, and they are growing rapidly. The successful Software Backend Engineer will be responsible for developing and maintaining company’s complex backend systems, working closely with other engineers to design and implement efficient and reliable solutions that deliver exceptional user experiences. But more than that, they are seeking a results-oriented individual who is eager to coach and mentor team members, helping them grow both professionally and … personally. Their development team uses various different programming languages with a particular focus on Golang but they are looking primarily for strong software developers first and experiences of technologies second. The company is made up of some of the very best software developers and mathematicians. Each brings their unique perspective from their backgrounds in computer science, physics, mathematics More ❯