1 to 25 of 89 Senior Software Developer Jobs in London

many of the world's leading e-commerce sites, tech companies and payment services providers such as Amazon, eBay, Shopify, Mollie, Dojo, Paysafe, Just Eat Takeaway and Takepayments. Our software platform and APIs enable our partners to offer flexible financing products, in their desired branding, to their merchant base. With YouLend's AI-driven credit risk assessment solutions, more … by customer-oriented tech companies that embed financing in their customer journeys, and we are building the solutions that will power that future. The Role We are seeking a Senior Software Developer with expertise in C#, .NET Core, AWS, Angular, and Kubernetes. The ideal candidate is both very technically competent and able to articulate challenging technical topics … consistently direct their impact to the highest leverage areas, whether it be mentoring and bringing up others in the team, or driving challenging architecture changes and refactoring. As a Senior Software Developer, you will play a critical role in designing, developing, and deploying robust financial systems that meet evolving business needs. This role requires strong technical skills More ❯

TypeScript/React CI/CD - GitHub/CircleCI Cloud – AWS Requirements Bachelor's degree with a minimum of 2:1 Computer Science, Information Technology, or a related field. Senior level experienced developer. Demonstrable success and involvement in software design and implementation of production-ready backend solutions. Strong experience with relational databases such as PostgreSQL, SQL Server, or More ❯

the best small- to medium-sized workplaces globally. What we do You will have the opportunity to work with the team that is responsible for how we ship our software to production. This role will incorporate stakeholder needs across the engineering organization to drive positive improvements to our overall developer productivity and our release process and provide world … will be doing to help us deliver on our mission is: • Develop continuous deployment (CD) platform at scale. You’re building this platform for anyone who wants to develop software across the company, not for one team or one project. This platform needs to be cloud native (CNCF standard), extensible, configurable, and makes the deployment process intuitive for anyone … across the company. • Build new features and components in our developer tools, processes, and services • Improve existing features and components to increase efficiency across our engineering organization • Review code from your peers and grow others through example, mentorship, and teaching • Drive complex changes involving multiple components and complex systems run by other software engineers • Build components and processes More ❯

Join Ten10 as a Senior Software Developer in Test Job Type: Permanent Location: London (Hybrid working with occasional client travel) Looking for your next challenge? At Ten10 , we’re transforming how businesses deliver quality software, and we’re looking for a passionate Senior Software Developer in Test to join our growing team. If … you’re a skilled developer with a love for testing and problem-solving, this is your chance to make a real impact. ️ Important: All applicants must be eligible for SC clearance. Not sure if you qualify? Check here: Eligibility for SC clearance Why Ten10? At Ten10, we’re proud to be one of the UK’s leading independent consultancies … for Quality Engineering, Software Testing, RPA, and DevOps. We bring together exceptional talent to deliver innovative solutions that help our clients release software faster and with confidence. Here’s why you’ll love being part of our team: Exciting Projects: Collaborate on challenging, impactful projects with a wide range of industries—from finance to government and beyond. Career More ❯

Join Ten10 as a Senior Software Developer in Test Job Type: Permanent Location: London (Hybrid working with occasional client travel) Looking for your next challenge? At Ten10 , were transforming how businesses deliver quality software, and were looking for a passionate Senior Software Developer in Test to join our growing team. If youre a … skilled developer with a love for testing and problem-solving, this is your chance to make a real impact. ?? Important: All applicants must be eligible for SC clearance. Not sure if you qualify? Check on the GOV website -gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels#security-check-sc Why … Ten10? At Ten10, were proud to be one of the UKs leading independent consultancies for Quality Engineering, Software Testing, RPA, and DevOps. We bring together exceptional talent to deliver innovative solutions that help our clients release software faster and with confidence. Heres why youll love being part of our team: Exciting Projects: Collaborate on challenging, impactful projects with More ❯

My client, a global fintech company disrupting the world of embedded finance, is seeking a Senior Software Developer to join their team. This is paying a market leading salary + benefits. It is a hybrid role and you will need to be in their Atlanta office 1-2 days per week (Remote will also be considered). … Company overview A global embedded financing platform for many of the world’s leading e-commerce sites, tech companies, and payment services providers. Their software platform and APIs enable our partners to offer flexible financing products, in their desired branding, to their merchant base. Role overview We are seeking a Senior Software Developer with expertise in More ❯

Senior Lead Software Engineer - Front-End Developer Join to apply for the Senior Lead Software Engineer - Front-End Developer role at JPMorganChase Job Description Be an integral part of a team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. As a Senior Lead Software Engineer … capabilities and contributions, and apply deep technical expertise and problem-solving methodologies to tackle a diverse array of challenges that span multiple technologies and applications. Job Responsibilities Execute creative software solutions, design, develop, and troubleshoot technical issues with the ability to think beyond routine approaches to build solutions or analyze technical problems. Develop secure, high-quality production code, review More ❯

Senior Software Developer (Python & C#) Location: Dartford with Manchester, Worksop, London (Considered) The Senior Software Developer for the Digital Design Intelligence (DDI) platform will design, implement, and maintain a scalable, Azure-based cloud platform and framework to support the business and citizen developers in creating secure, governed applications. This hands-on role is critical … developers to work within a secure, scalable environment that aligns with Engineering standards. Use Infrastructure as Code (IaC) tools like Terraform, or Bicep for consistent, automated resource provisioning. Automation &Developer Enablement Implement and automate pre-configured environments, supporting citizen developers with ready-to-use, compliant resources. Integrate DDI platform automation with CI/CD pipelines, using tools like GitHub … centered platform experience. Collaboration & Knowledge Transfer Serve as the DDI platform's technical expert, collaborating with business teams to tailor solutions for citizen developers' needs. Train technical support and developer teams on DDI tools, templates, and best practices, fostering effective knowledge transfer. Provide tutorials, workshops, and platform documentation to support citizen developers and technical teams. Skills and Qualifications: Highly More ❯

Senior Software Developers required for an excellent client who are in the trading industry and their office is based in the City of London. The successful Senior Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C# … You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications whilst having a lot of autonomy. Our client offers a very collaborative working environment with most of the development team coming from excellent educational backgrounds. The company operate More ❯

Senior Software Developers required for an excellent client who are in the trading industry and their office is based in the City of London. The successful Senior Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C# … You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications whilst having a lot of autonomy. Our client offers a very collaborative working environment with most of the development team coming from excellent educational backgrounds. The company operate More ❯

Senior Software Developer in Test - SDET Join to apply for the Senior Software Developer in Test - SDET role at First State Bank - Michigan Senior Software Developer in Test - SDET 1 week ago Be among the first 25 applicants Join to apply for the Senior Software Developer in Test … SDET role at First State Bank - Michigan Join Ten10 as a Senior Software Developer in Test Job Type: Permanent Location: London (Hybrid working with occasional client travel) Looking for your next challenge? At Ten10 , were transforming how businesses deliver quality software, and were looking for a passionate Senior Software Developer in Test to … join our growing team. If youre a skilled developer with a love for testing and problem-solving, this is your chance to make a real impact. Important: All applicants must be eligible for SC clearance. Not sure if you qualify? Check on the GOV website -gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national More ❯

Senior Software Developers specialising in trading systems required for an excellent client based in London. The successful Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are … on.You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This role is within the sports More ❯

Senior Trading Software Developers required for an excellent client who are in the trading industry and their office is based in the City of London. The successful Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C#/… on.You will be given the opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This role is within the sports More ❯

with a systematic problem-solving approach, coupled with strong communication skills, a sense of ownership and drive. Someone who is as passionate as we are about the craft of software engineering and system architecture, and understands the challenges of building complex backend systems. Someone who believes in writing resilient code and reliable infrastructure, but can still appreciate the realities … reports for our users. Designing and building automations for infrastructure, deployments and monitoring. Writing clean, maintainable and testable code, and inspiring others to do the same. Identifying and implementing software engineering best practices. Brainstorming feature design, system architecture improvements and troubleshooting. Your skills and experience 5+ years of experience writing backend systems in any high-level programming language. Interested More ❯

Senior Software Developer (Python AWS) London - £70,000 - £80,000pa JNC are working with a leading Financial Services clients in London that are looking to bring on a talented AWS Software Engineer who has extensive Python coding skills. This is a great opportunity to join a talented team of developers where you will be collaborating with More ❯

Join to apply for the Senior Software Developer role at Tecnitex Industrial Ltda. 3 weeks ago Be among the first 25 applicants Join to apply for the Senior Software Developer role at Tecnitex Industrial Ltda. Senior Software Developer (PYTHON/AWS/REACT) - Health tech - tech for good, make a positive … impact on the world Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain their publishing software, systems, and customer-facing digital products. Requirements Design and implement systems and software to … creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. Be responsible for the technical development of all stages of software creation, including testing; ensure that implementation meets security, performance, and safety requirements. Suggest improvements to the code base, development processes, tooling and working practices. Encourage innovation by identifying, evaluating More ❯

of sales coming from e-commerce. Technology plays a vital role in our business, supporting daily operations and driving growth through advanced solutions. We are seeking a cloud-savvy developer to join our engineering team. As we expand our cloud-based solutions, we need someone with expertise to contribute effectively. You will collaborate with talented business analysts, developers, quality … engineers, and support staff to ensure our online presence remains top-notch. As the Senior Developer, you will be responsible for developing and maintaining cutting-edge cloud solutions. You must have a passion for technology, exceptional problem-solving skills, and the ability to combine logical and analytical thinking with excellent interpersonal skills. We are looking for someone with … extensive software development experience who can work across departments to deliver high-quality software solutions. If you are a cloud-centric software developer eager to work in a fast-paced, innovative environment, we want you on our team. What You Will Do Participate in code reviews, testing, and debugging to ensure high-quality, reliable software More ❯

Senior Software Developers We are seeking Senior Software Developers for an excellent client in the trading industry, based in the City of London. The successful candidate will join a small, talented development team, working on creating and maintaining applications within a C#/.NET/SQL Server/ASP.NET environment. Many projects are greenfield, offering the … opportunity to make a significant impact early on. You will work with the latest technologies and be expected to produce high-quality code for in-house software applications, with a high degree of autonomy. The client provides a collaborative working environment, with most team members from strong educational backgrounds. The company operates within the sports trading industry, so familiarity More ❯

Senior Software Developer page is loaded Senior Software Developer Apply locations London, Grays Inn Road time type Full time posted on Posted Yesterday time left to apply End Date: August 3, 2025 (30+ days left to apply) job requisition id R094690 Media help partners understand the changing advertising landscape. Specialising in audience measurement, consumer … the world’s fastest growing cross-media measurement footprint, underpinned by versatility, scale, technology and expertise, to drive long-term business growth for our clients and partners. Job Title: Senior Software Developer Location: London, Grays Inn Road Full time/Permanent/Hybrid About the Project/Role We are seeking a Senior Software Developer with a strong focus on developing production-grade software, extensive experience with Azure services, and proficiency in Python, PySpark. As a Senior Software Developer , you will work with a team of 3 engineers and collaborate with a third-party vendor to deliver robust, scalable solutions. Job Role Requirements Development: Lead the design and development of More ❯

IT Recruitment Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: Senior Trading Software Developers required for an excellent client who are in the trading industry and their office is based in the City of London. The successful Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are greenfield projects and allow you to make your own mark on the development process early on.You will be given the … opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This role is within the sports trading industry so any candidate More ❯

Social network you want to login/join with: Senior Software Developer Our software development team is the engine room of our business, providing bespoke systems that give us our competitive advantage in a dynamic and fast paced marketplace. You will work across all of our current technology platforms including our bespoke back-office system, online … initiatives. From day one you’ll be exposed to a wide range of technologies and have the opportunity to work in a small, dynamic and hugely aspiring team. Department Software Developement Employment Type Permanent - Full Time Location London Workplace type Hybrid About the role Within this role, you will be the Senior Developer in one of our … CFC has over 800 staff and is trusted by more than 100,000 businesses across 90 countries. At CFC, insurance isn't just about underwriting. From data science to software development, and digital marketing design, we've got something for everyone. We're passionate about pushing boundaries, thinking differently and building the insurance company of the future. CFC is More ❯

We have an excellent opportunity for a Senior Software Engineer to join one of Britain’s biggest newspaper groups on a remote, permanent basis. The successful candidate will be joining the Ad Product team to work on the clients brand safety and contextual analysis project. What they are looking for Someone that has experience building scalable products and More ❯

deployment of those applications - "You build it, you run it." What you will do: You will be using Scala, Akka, Kafka, Kinesis, and Dynamo to build and innovate our software that is distributed, reactive, and scalable. You will: Contribute to or lead a significant part of the implementation and deployment of services within your team. Work on challenging and … or at least an interest in functional programming Have experience with public cloud technologies - We use AWS Knowledge of applying object-oriented and functional programming styles to real-world software engineering problems. Experience creating scalable and reactive web applications with modern frameworks like Akka/play etc Desirable Skills: Experience with (or a willingness to learn) the Lightbend Reactive More ❯

Senior Software Developer with Liferay or Angular You have a degree in Engineering, Computer Science or other IT related education (Bachelor/Master). Must be very enthusiastic about Java-based web/enterprise application development and deployment and have experience with Java. The Client would like to see working knowledge and at least 2 to … Framework is a must, coupled with extensive knowledge of HTML5, CSS (SASS), JavaScript, and jQuery. Good sense of web design and Single-Page Application (SPA) development. Knowledge of cloud software design (AWS/Azure). You need to be a fast learner, willing to learn and implement new technologies. There are several locations for this contract assignment – Norwich, Reading More ❯

Senior Software Developer (PYTHON/AWS/REACT) - Health tech - tech for good, make a positive impact on the world Highly successful and fast growing organisation has an exciting opportunity for a Senior Software Developer (PYTHON/AWS/REACT). They are looking for a talented individual who will design, implement, and maintain … their publishing software, systems, and customer-facing digital products. Requirements Design and implement systems and software to meet requirements using appropriate tools and methods. Promote the creation of high-quality code by commitment to practices such as test-driven development, pair programming and code review. Be responsible for the technical development of all stages of software creation … adoption of emerging technologies. Assist with the design, implementation, and testing of APIs that adhere to the Open API specification Knowledge & Skills for this job Able to demonstrate commercial software development experience. Practical experience in system design, development, testing and operational stability. Deep knowledge and experience in Python and its ecosystem, patterns and pitfalls. Experience applying continuous delivery, test More ❯