1 to 25 of 67 Senior Software Developer Jobs in London

Senior Full Stack Software Developer Tech : AWS Lambda, React with Next.js, TypeScript, Node.js, and Terraform Why? start-up financial services, revolutionising the industry Location : Hybrid - 2-3 days in the office (London) Salary : £80k - £95k + benefits Our Client A new UK-based financial services provider is launching a credit card offering 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 Developer - Responsibilities Collaborate with Product Owners to ensure that the technical roadmap aligns with the product vision. Actively participate in product planning meetings and provide … Terraform. Provide technical guidance and mentorship to junior developers. Stay up-to-date with new technology trends, applications, and protocols. Contribute to the development of technical documentation and standards. Senior Full Stack Software Developer - Experience Required Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience Proven experience as a More ❯

Job Description - Software Developer - C# (15997) Job Description Software Developer - C# ( 15997 ) Description We have a fantastic new opportunity for a Software Developer to join our agile team and have a direct impact on our Revenue Management System (RMS). Our RMS sets and optimises ticket and ancillary prices which helped the business secure … is a full stack role and you'll primarily be working towards the modernisation of our revenue platform and working in AWS. You'll be joining a small friendly software development team and taking part ownership of the development of the next iteration our RMS system whilst maintaining the high standards of our legacy systems during the transition What … you'll be doing Deliver high quality, cost-effective software solutions within the Revenue Management System (RMS) eco-system, in line with easyJet standards and best practices. Support the Software Development Life Cycle (SDLC) including analysis, design, development, testing, deployment and production support. Ensure compliance with the SDLC including architectural and security standards. Understand Agile software development 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 ❯

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 ❯

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 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 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 ❯

effectively handling maintenance and operational requirements, such as technical debt & sensible levels of documentation. Using your expertise and experience to mentor and coach others. What we value in a developer: We're looking for significant experience with one or more OO programming languages (we’re primarily C# .Net & Node.js, but happy to consider candidates with experience from other backgrounds … working in a highly collaborative environment and enjoy pairing and mobbing. Our interview is designed to remove bias and is focused on the competencies of the role of a developer here. We don't expect you to do offline work or to spend hours preparing! We ask questions related to your knowledge and experience, will work through a paired 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 ❯

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 #LI-Hybrid #LI-EH2 #LI-KantarMedia 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 high-quality, production-grade software solutions using Java, Python, and PySpark. Ensure code is optimized, scalable, and maintainable. Azure Expertise: Leverage Azure services extensively, particularly Azure Storage, for scalable cloud solutions. Ensure seamless integration with AWS S3 and implement secure data encryption/decryption practices. Python Implementation: Utilize Python, Pyspark for processing large More ❯

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 #LI-Hybrid #LI-EH2 #LI-KantarMedia 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 high-quality, production-grade software solutions using Java, Python, and PySpark. Ensure code is optimized, scalable, and maintainable. Azure Expertise: Leverage Azure services extensively, particularly Azure Storage, for scalable cloud solutions. Ensure seamless integration with AWS S3 and implement secure data encryption/decryption practices. Python Implementation: Utilize Python, Pyspark for processing large 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 ❯

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 ❯

Social network you want to login/join with: Sr. Software Engineer - Integrations and Developer Experience, London col-narrow-left Client: Addepar Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: f83fe8c5064e Job Views: 9 Posted: 29.06.2025 Expiry Date: 13.08.2025 col-wide Job Description: Sr. Software Engineer - Integrations and … Developer Experience Who We Are Addepar is a global technology and data company that helps investment professionals provide the most informed, precise guidance for their clients. Hundreds of thousands of users have entrusted Addepar to empower smarter investment decisions and better advice over the last decade. With client presence in more than 50 countries, Addepar's platform aggregates portfolio … market, and client data for over $7 trillion in assets. Addepar's open platform integrates with more than 100 software, data, and services partners to deliver a complete solution for a wide range of firms and use cases. Addepar embraces a global flexible workforce model with offices in New York City, Salt Lake City, Chicago, London, Edinburgh, Pune, and More ❯

Join to apply for the Senior Software Developer in Test role at Ten10 Continue with Google Continue with Google Join to apply for the Senior Software Developer in Test role at Ten10 Direct message the job poster from Ten10 Talent Lead - Building networks and communities across Cloud, DevOps, Quality Engineering and Software Testing … 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: https://www.gov.uk/government/publications/united-kingdom-security-vetting-clearance-levels/national-security-vetting-clearance-levels#security 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 trading 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 ❯

a hands-on, collaborative, project-based approach to solving data challenges, then we'd love to hear from you. The "Special Projects" team is Quick Release's in-house software development centre-of-excellence, developing products directly for clients, tools to support the work of our Analysts and Consultants, and internal software tools to help run the business. … made up of primarily full-stack developers who have moved into the team after excelling in Analyst or Consultant roles within Quick Release. We are now seeking an experienced Senior Software Developer to bolster our capacity to deliver high quality software solutions, accelerate our processes and help us grow our technical capabilities. This rolewill require … being rejected. Connect With Quick Release Online LinkedIn: https://www.linkedin.com/company/quick-release Glassdoor: https://bit.ly/GlassdoorQR Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Industries IT Services and IT Consulting Referrals increase your chances of interviewing at Quick More ❯

Senior Technical Java and C# .net Software Developer We are currently recruiting a Java with C# .net Senior Software Developer – who can be the lead in the team. You must have at least 5 to 7 years proven track record of developing software with Java and C# .net framework coupled with SQL Server. … retail business acumen, and customer focus. · Provide governance for troubleshooting complex system issues as necessary · Develop or contribute to business cases, roadmaps and proposals which may include presentations to senior management. · Collaboration with Business, Technical, and Security Architects, to manage risk identification and risk mitigation tactics associated with the designs. Role-specific knowledge: · 5+ years of senior technical … lead. · 5+ years of strong hands-on experience as a developer working on JAVA or .NET Framework standards and technologies - C#.NET, ASP.NET, AngularJS, SQLServer, Web Services, Cloud Platforms, AJAX, JQUERY, XML/JSON, HTML, CSS · Retail/digital technology experience is essential · Experience in SalesForce Service and Marketing Clouds · Safety Knowledge: · Provides a consistent outstanding role model in relation More ❯