First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming the financial services sector. Our global teams span across 15 offices serving clients across EMEA, North America and APAC.As an EPAM Systems, Inc. (NYSE: EPAM) company, a leading global provider of digital platform engineering and development services, we deliver advanced financial services solutions by empowering operational insights, driving innovation, and enabling more effective risk management in an increasingly data-centric world.We are seeking a Lead .NET Developer to join our technology and business consulting team.Working from the office in Belfast 3 days per week is required.ResponsibilitiesMentor other engineers in the team, whilst ensuring alignment with project goals and timelinesDesign, develop, and maintain software, ensuring seamless integration and performanceCollaborate with cross-functional teams, including Business Analysts (BAs) and Project Managers (PMs), to gather and refine requirementsImplement and maintain Infrastructure as Code (IaC) using AWS CDK with Python to automate deployment and management of cloud resourcesEnsure high-quality code through automated testing, particularly unit testing, and maintain a strong emphasis on code quality and complexityOversee the implementation and management of CI/CD pipelines to streamline the software development lifecycleMonitor system performance, identify issues, and implement solutions to ensure high availability and performanceEnsure security best practices are followed and implement necessary measures to protect cloud infrastructure and applicationsParticipate in agile ceremonies and contribute to an agile mindset within the teamMaintain detailed documentation of code, processes, and system configurationsRequirementsAt least 5 years of experience as a .NET Engineer, preferably in the finance sectorStrong understanding of AWS services and hands‑on experience with Infrastructure as Code (IaC), particularly using AWS CDK in PythonExperience with Entity Framework (or other CRMs) is beneficialExperience designing and building systems using a contract‑first methodology is beneficialExperience with writing tests or scripts in Python is beneficialDemonstrated experience with automated testing frameworks and a solid understanding of unit testing principlesExperience working in agile environments and a strong agile mindsetAttention to detail and the ability to work under pressure without being distracted by complexityExcellent problem‑solving skills and the ability to think critically and creativelyLeadership and collaboration skills, with the ability to communicate effectively with team members and stakeholdersPassion for code quality and a commitment to maintaining high standards of software developmentStrong communication skills, both written and verbalFluent in back‑end development using .NETStrong understanding of microservices architecture in cloud environmentsStrong grasp of database design and experience with relational and/or NoSQL databasesCompetent in using Docker for containerisationFamiliarity with Kubernetes, relying on the DevOps Engineer for orchestrationProficiency in using Git for version control and JIRA for backlog managementExperience with CI/CD pipelines and toolsAbility to write clear and concise documentationAbility to work effectively as part of a team and independently when requiredWe offerPensionEmployee Assistance ProgrammeEnhanced Maternity policyGive as You EarnCycle to Work SchemeEmployee Referral Bonus SchemeDiversity NetworksAccess to a range of skills and certifications #J-18808-Ljbffr