126 to 150 of 172 Senior Developer Jobs in London

looking for a Senior Backend Platform Developer to build modern services for the company's contact center systems. This is a software engineering role first: where you will design APIs, serverless services, data flows, observability tooling, and AI-enabled workflows that support our customer and agent experience. … coding assistants for development, testing, refactoring, and troubleshooting. Fluency with GitHub workflows, including pull requests, code review, branching, and CI/CD collaboration. Senior-level judgment to turn ambiguous operational problems into clean, maintainable technical solutions. Helpful Domain Experience Experience in contact center, telephony, customer support, or workflow automation ...

with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! About the Role We’re seeking a Senior/Staff Engineer to build and maintain the automation infrastructure that powers the development cycles of our North platform. This engineer will design … maintaining CI/CD pipelines Containerization experience (Docker, Kubernetes) Benchmarking experience and performance testing methodologies Cloud platform experience (AWS, GCP, or Azure) Background in developer tools or platform engineering Ability to design and implement complex automation systems Strong problem-solving skills and attention to detail Preferred Qualifications Experience working ...

currently working with a London-based financial-services client who are actively seeking a Senior Python Developer to work on the development of a business-critical research and analytics platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory or ad-hoc scripting Strong ...

Logistics Employment type: Permanent Job Description As a Senior Python Engineer, you will play a critical role in designing, developing, and optimising our innovative solutions. You’ll be responsible for driving the technical execution of projects, mentoring other developers, and ensuring our platform remains scalable, reliable, and secure. This ...

Senior Quant/AI Developer Job Reference #339177BR Location: London Job Type: Full Time Are you excited by the prospect of engineering solutions across Global Markets? Do you want to design, build and help deliver production systems across the front-office? Are you passionate about building and delivering ...

Morgan Hunt UK Limited is recruiting a Senior Full Stack Java Developer for a 6-month contract (likely extension) with a UK remote arrangement. You will join a government organisation, working in an Agile, cross-functional delivery team to build cloud-native applications using Java 21, Spring Boot ...

## Senior FX eTrading Developer - VP - LondonApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26951129**About Citi**As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building … financial sector.We welcome applications from any industry and should you wish to apply your application will be reviewed for a multitude of Developer positions at varying levels.**About FX Tech**Citi FX has a physical presence in 83 countries with 1,400 dedicated staff giving us the largest ...

company. If you’re excited about building something special with us, we’d love to hear from you. About the role We're seeking Senior Python Developers to join our back-end development team. This is a varied and challenging programming role. Tasks could include writing code to manage … Technical Task or Presentation – A role-relevant exercise to demonstrate your skills and approach. Final On-site Interview – An in-person meeting with our senior leadership team and co-founders at our office. We strive to make the process clear, efficient, and respectful of your time. We welcome ...

Systems Accountants is recruiting a Senior Business Intelligence Developer with extensive Infor EPM v12 Cloud expertise for a hybrid London-based role. The position supports enterprise reporting, planning, and analytics, collaborating with finance and IT teams to deliver robust solutions. You will design and optimise BI models, implement ...

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ ...

CTDI is looking for a Senior Backend PHP Developer to work on developing a Greenfield backend REST API for the transport industry. This contract offers £500 per day for 12 months, with the option to work remotely. You will collaborate closely with a Senior API Engineer within ...

Global technology & software product company operating in the observability and monitoring space, is looking for a Senior Java Software Engineer to join their Platform Team in London . You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale … stateful sets Tackle hard problems around data consistency and availability, and shape how the platform evolves Mentor other engineers while continuing to learn from senior peers across a global team What you need to bring At least 7 years' experience as a backend Java developer, building complex distributed ...

have the autonomy and support to make an impact as we build for the long term. About the role: the company is hiring a Senior Software Engineer II to join our Operational Excellence (OPX) team within the Developer Experience organization. DevEx is responsible for the engineering environment that … automated response workflows Datadog (or equivalent observabilty tooling like New Relic, Grafana). Proven experience working on large-scale enterprise software applications Experience in Developer Experience (DevEx) & Internal Portals: Designing and implementing solutions/tools that centralise and simplify engineering operations. Familiarity with cloud platforms ...

13+ billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Role : Senior Vendor Software Engineer (Kotlin) DB require two senior, experienced Kotlin engineers to support and extend a cloud‐hosted platform used for bookbuilding issuances across Investment ...

remediation, advancing AI from assisted analysis toward closed-loop resolution; Architect and optimize large-scale distributed systems to continuously improve throughput, reliability, observability, and developer experience. Work closely with engineering, security, infrastructure, and AI business teams to understand real-world requirements and drive complex projects from design to adoption ...

Summary City of London, England We are looking for a senior, experienced software engineer to assist with the development and maintenance of our in-house corporate network management utilities and applications. The candidate must be comfortable using the Linux command line interface. Previous experience with network devices and protocols ...

LGBT Great in London is seeking a Senior Power BI Developer for a 3-month hybrid contract. You will work across the full Power BI lifecycle from data modelling to production dashboards, engaging with stakeholders to deliver trusted analytics. The role requires strong DAX, Power Query ...

Technologies GmbH is seeking a Senior Full Stack Developer specializing in C# .NET to enhance secure, web-based platforms. In this pivotal role, you will leverage AI-assisted tools to improve code quality and delivery speed, ensuring compliance with financial regulations. Ideal candidates have solid experience in C# ...

Morgan Hunt are partnering with a Government organisation to recruit an experienced Senior Full Stack Java Developer on an initial 6-month contract, with extension potential. The role is remote (UK based) within an Agile, cross-functional delivery team, building cloud-native applications using Java 21, Spring Boot ...

• Part of a client team building innovative products • Skilled in problem‐solving and experienced in designing scalable, resilient, and fault‐tolerant architectures • Effective communicator and a strong team player • Thrive in a fast‐paced engineering ...

At the company’s Oscar-winning Technology team, innovation is at the heart of what we do, whether this be developing new techniques, new ideas or creative new ways to tell our clients’ stories. Underpinning ...

Natixis NY Branch is looking for a skilled developer to support business-critical applications within the Commodities Markets team. The role offers the opportunity to work on flexible, scalable software for front office users while collaborating with global teams. Key requirements include strong experience in C#/.NET development ...

Citi in London is seeking a Lead Java Developer to drive the development of real-time and on-demand risk systems within our global trading and risk framework. You will own the full development lifecycle, from architecture to production support, and collaborate with London-based traders, risk teams ...

Jobtailor in the United Kingdom seeks a skilled Java Spring Boot developer to migrate and rebuild core architecture, design robust connectors for global channels, and optimize the catalog publication flow. You will translate legacy business rules into reliable BCP assets and ensure real-time stock and price synchronization. ...

About the team The Developer Experience team owns the internal platform that every the company engineer touches daily: CI/CD pipelines, observability tooling, our developer portal, and an emerging AI platform. It's a high-visibility role: the work you lead directly shapes the productivity of hundreds … looking for an experienced Engineering Manager to take full ownership of this domain, grow a team of seven engineers, and define what great developer experience looks like at the company as we scale. What you'll do Lead and develop a growing team of 5+ highly motivated engineers across ...