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 www.cmgx.io.
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 .NET 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.
