Electronic Trading – Senior .NET Developer (CLT) About the Project This is agreenfield initiativeto build and evolve a next-generationelectronic trading platform for Fixed Income, designed to support a global trading business. The project is long-term, strategically important, and sponsored at senior business levels, offering strong visibility and stability. Working closely with business stakeholders and technology teams inEurope and Latin America, you will be part of ahigh‐performing, agile teambuilding a modern,cloud‐native platform on AWSfrom the ground up. This role is especially attractive for professionals who valuecontinuous learning and education. The project provides deep exposure to modern architectures, distributed systems, cloud technologies, and financial markets, making it an excellent opportunity toevolve as a senior backend engineer while delivering real business impact. Contract & Work Model Contract Type:CLT Work Model:Hybrid Onsite Requirement:1 day per week at the office inAlphaville, Barueri Role Overview You will collaborate with senior engineers, architects, and business partners to design and implement scalable, reliable backend services that support complex electronic trading and pricing workflows. This is a hands-on senior position, ideal for engineers withsolid backend experiencewho enjoy working ongreenfield systems, influencing architecture, and mentoring through technical excellence and best practices. Key Responsibilities Take ownership of backend software delivery, ensuring quality, scalability, and reliability Design, build, and maintain backend services and APIs using modern .NET technologies Contribute to and lead technical design decisions, with well-documented system architecture Apply industry best practices in code quality, testing, CI/CD, and system observability Collaborate effectively with distributed technology teams and business stakeholders Actively contribute to an agile, learning‐driven engineering culture Required Technical Skills & Experience At least 6 years of professional experience as a Backend Developer, working on complex systems Strong expertise in.NET / .NET Coreand solid understanding ofobject‐oriented design principles Hands‐on experience withASP.NET Core Web APIand RESTful service design Solid knowledge ofmulti‐threading and asynchronous programming Experience working withSQL and NoSQL databases Hands‐on experience withcontainerization technologies (Docker) Proven experience designingAPI‐based, service‐oriented or microservices architectures Strong discipline withautomated testing(NUnit, Moq, Cucumber or similar) Experience withmessaging and middleware technologies(RabbitMQ, SignalR, TIBCO, or similar) Solid experience withCI/CD pipelinesand tools such as Git and TeamCity Practical experience working inAgile software development environments Nice to Have Knowledge ofFixed Income products or financial markets Experience configuring and improving CI/CD pipelines Familiarity withJavaScript single‐page application frameworks Hands‐on experience usingAWS services Soft Skills & Profile Energetic, motivated, and proactive Pragmatic, results‐oriented mindset Adaptable to diverse technical challenges Strong analytical and problem‐solving skills Effective time management and prioritization Excellent written and verbal communication Strong interest incontinuous learning, technical growth, and knowledge sharing Qualifications Bachelor's degree inComputer Science, Information Technology, or a related field, orequivalent professional experience delivering backend software solutions at a senior level