Senior .NET Engineer

The Company Capital Markets Gateway LLC (CMG) is a capital markets-focused fintech transforming global equity capital markets (ECM) through data, technology, and connectivity. As the preferred source for ECM analytics and the first network connecting the buy-side and sell-side for ECM workflows, we are committed to reshaping how capital markets operate. Founded in 2017 by a team of ECM practitioners, CMG has completed three successful fundraising rounds and is backed by a group of the world’s most prestigious financial institutions. The CMG platform is currently relied upon by nearly 150 buy-side firms representing $40 trillion in AUM and 22 global investment banks. For more information, please visit The Role We’re looking for a Senior .NET Engineer to join our team to help build scalable, secure, and high‑performing enterprise solutions for the financial industry. As a Senior .NET Engineer, you will play a key role in designing, developing, and maintaining robust backend systems and APIs that power our core products. You’ll collaborate closely with frontend engineers, product managers, and QA teams to ensure seamless data flow, system reliability, and efficient service integration. Your contributions will include optimizing performance, enhancing system architecture, and applying best practices in software development, security, and deployment to support rapid and reliable product delivery. Our Engineering Team The CMG engineering team consists of domain experts who work collaboratively within a culture of cross‑domain knowledge sharing. We value engineers who are passionate about modern technologies and best practices. Our engineers are encouraged to challenge the status quo and are constantly seeking improvement and efficiency in our code‑base and platform. CMG engineers are empowered to explore solutions using bleeding‑edge technologies such as AI and bring recommendations to the table. We are in a period of making impactful engineering decisions. As part of our process, we believe in taking the time for research and prototyping — this is critical in making the right decisions. Given the experience of our team, we have naturally adopted best practices from local development, through code review and into production rollouts. Besides the standard pull requests, test automation, code coverage tracking, containerization, and one‑click deployments, we are constantly reviewing these foundational components to develop new best practices. Responsibilities Design, develop, and maintain scalable backend services using .NET 9 and ASP.NET Core, and GraphQL Lead, drive, and own implementation of new solutions in the codebase and architecture Work independently with minimal direction, taking full ownership of assigned projects Identify opportunities for improvement in the codebase and take the lead in pushing for those changes Collaborate with distributed teams to deliver new product features and enhancements Write high‑quality, well‑tested code and contribute to automated testing frameworks using xUnit.net Build and prototype solutions using AI tools such as GitHub Copilot (in JetBrains Rider), and Codex OpenAI Leverage technologies like Docker, Kubernetes, Redis, RabbitMQ, GraphQL, and PostgreSQL to improve system reliability and performance Monitor, debug, and optimize applications using DataDog, Grafana, OpenTelemetry, and Microsoft Azure services Contribute to a strong engineering culture through code reviews, knowledge sharing, and continuous improvement Engage in agile development processes including sprint planning, daily stand‑ups, and retrospectives. Qualifications C#, ASP.NET Core: 3+ years Software Engineering: 5+ Years Proven ability to lead and own technical solutions and architectural decisions Self‑starter who can work independently with minimal supervision Write high‑quality, well‑tested code Strong analytical, problem‑solving, and communication skills (written and verbal) Enjoys team collaboration, continuous learning, and building scalable solutions Strive to constantly learn new things Must be based in LATAM English level – C1 or C2 Fintech experience is a plus Experience developing AI‑powered applications is a plus Our Tech Stack Latest .NET version for our backend services Federated GraphQL server running in Hot Chocolate MassTransit and RabbitMQ for messaging Hangfire for our background processing Swashbuckle for swagger generation Redis Cache for distributed caching and real‑time messaging Azure as infrastructure provider Docker + Kubernetes for microservice orchestration using Istio service mesh PostgreSQL for relational db, ElasticSearch for indexing, Redis for caching DataDog, Grafana and OpenTelemetry for observability GitHub for our Version Control and CI (with our own runners) React with TypeScript on our front‑end AI Tools: GitHub Copilot (in Rider), Codex OpenAI for developing, prototyping and innovation Our Values We innovate with purpose We focus on outcomes vs. output We believe diverse and inclusive teams fuel innovation We are humble yet candid We do right by the customer What We Offer 2+ years contract 15 business days of vacation Tech courses and conferences Top‑of‑the‑line MacBook Fully remote working environment Flexible working hours CMG embraces our ongoing commitment to building a culture reflecting the people, perspectives, and passions it represents. We will accept nothing less than equity, inclusion, and belonging for all. With the only constant in life being change, we will always listen, learn, and improve for the betterment of our teams, customers, and communities. CMG is proud to be an Equal Opportunity Employer. #J-18808-Ljbffr