Senior Software Developer

Job DescriptionSenior Software Developer** (Contract)Duration: Up until 31 March 2027 (Possibility for extension)Location: London/Hybrid (3 days per week on site) Rate: A highly competitive salary is available for suitable candidatesRole ProfileThis role focus on the development and support of systems responsible for back-office integration and Repo trading workflows.The positions require strong technical skills, familiarity with trade lifecycle processes, and the ability to work across front to back teams to ensure accurate and timely data flows.Key Responsibilities:Develop and maintain applications that integrate Fixed Income and Repo trades with downstream back office, settlement, and risk systems.Support and enhance the Repo trading application, including trading workflow tools, reconciliations, and connectivity with internal and external platforms.Build and optimize C# services that ensure robust trade capture, enrichment, validation, and distribution.Collaborate with operations, trading desks, and technology teams to resolve workflow issues and identify functional improvements.Troubleshoot production issues, perform root cause analysis, and implement long term system enhancements.Participate in architectural discussions and contribute to decisions around system design, data models, and integration patterns. Skills & Experience:Strong C#/.NET development experience in Windows environments.Understanding of Repo markets and Fixed Income trade lifecycle processes.Experience with system integration, messaging technologies, and data transformation.Strong debugging and analytical skills.Ability to collaborate effectively with both technical and non-technical stakeholders. Candidates will need to show evidence of the above in their CV in order to be considered. If you feel you have the skills and experience and want to hear more about this role ‘apply now’ to declare your interest in this opportunity with our client. Your application will be observed by our dedicated team. We will respond to all successful applicants ASAP however, please be advised that we will always look to contact you further from this time should we need further applicants or if other opportunities arise relevant to your skillset. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone’s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive.As part of our standard hiring process to manage risk, please note background screening checks will be conducted on all hires before commencing employment.We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention