Senior .NET Software Engineer

StoneX Group Inc.; Bogotá; Híbrido; COP 200.880.000 - 267.840.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Mission-critical systems

Ownership and growth

Collaborative engineering culture

Professional development

Descripción de la vacante

StoneX Group Inc. in Bogota is seeking a Senior .NET Software Engineer to join the API & Middleware Group, building scalable APIs and high‑performance services. You will own design and operation of low‑latency, data‑intensive systems under load, collaborating with engineers, tech leads, and QA for architectural excellence.

The role requires 5+ years with C#/.NET, microservices, and cloud exposure (Azure). Hybrid work from our Bogota office will provide ownership, growth, and team collaboration

Formación

• 5+ years’ experience building global enterprise‑level systems.
• Experience with C#, .NET Core, and .NET 8+.
• Experience with microservices, Kafka/Redpanda, Kubernetes, and cloud (Azure).
• Strong knowledge of relational (SQL Server) and NoSQL databases.

Responsabilidades

• Design and develop low‑latency solutions using the latest .NET technologies; build performant, scalable backend services from scratch or improve existing ones.
• Write well‑designed, testable, and efficient code; ensure designs are in compliance with specifications.
• Tackle live production challenges, including troubleshooting and performance issues.
• Do proofs of concepts to test out various ideas and technologies.
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
• Mentor and support engineers with technical direction and best practices.
• Participate in code reviews (PRs), design sessions, and agile ceremonies; contribute as a strong team player.
• Work closely with team leads, stakeholders, and other teams across the company.
• Continuously explore and evaluate new technologies that could enhance the platform.

Conocimientos

C#

.NET Core

.NET 8+

High-load

Multithreading

Performance tuning

Distributed systems

Microservices

Kafka

Redpanda

Docker

Kubernetes

Azure

SQL Server

NoSQL

APIs

GitHub

Visual Studio

VS Code

Rider

ReSharper

TeamCity

Octopus

Grafana

Educación

Bachelor’s degree in computer science, Software Engineering, or equivalent

Herramientas

GitHub

Visual Studio

VS Code

Rider

ReSharper

TeamCity

Octopus

Grafana

Descripción del empleo

Overview

Permanent, full-time, hybrid in our office in Bogota.

Tech Stack You’ll Work With

• Languages & Frameworks: C#, .NET Core, ASP.NET Core
• Architecture: Microservices, event‑driven systems (Kafka, Redpanda)
• Cloud & Infrastructure: Azure, Kubernetes, Docker, Rancher, TeamCity, Octopus, Grafana
• Databases: Microsoft SQL Server (T‑SQL), PostgreSQL, NoSQL databases
• Tooling: GitHub, Visual Studio, VS Code, Rider, ReSharper
• AI & Developer Tools: Microsoft Copilot, GitHub Copilot, ChatGPT, Claude

Responsibilities

We are hiring a Senior .NET Software Engineer to join the API & Middleware Group, a central platform team responsible for building scalable APIs, middleware services, and event‑driven systems used across the organization. This role focuses on designing and operating high‑performance, low‑latency services that run under significant load and strict reliability requirements. You will work on distributed, data‑intensive systems that enable system‑to‑system integration and platform‑level capabilities. This role is ideal for an experienced .NET engineer who thrives on ownership, stays up to date with the newest .NET technologies, and brings deep expertise to high‑load, low‑latency systems. You will collaborate closely with experienced engineers, tech leads, and QA partners, contributing to architecture, implementation, and operational excellence.

Primary Duties

• Design and develop low‑latency solutions using the latest .NET technologies; build performant, scalable backend services from scratch or improve existing ones
• Write well‑designed, testable, and efficient code; ensure designs are in compliance with specifications
• Tackle live production challenges, including troubleshooting and performance issues
• Do proof of concepts to test out various ideas and technologies
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
• Mentor and support engineers with technical direction and best practices
• Participate in code reviews (PRs), design sessions, and agile ceremonies; contribute as a strong team player
• Work closely with team leads, stakeholders, and other teams across the company
• Continuously explore and evaluate new technologies that could enhance the platform

Qualifications

• Minimum 5+ years’ experience building global enterprise‑level systems
• Knowledge of financial markets or a strong desire to learn
• Proven hands‑on experience designing and developing enterprise applications using C# / .NET Core / .NET 8 or higher
• Solid grasp of .NET Core APIs, high‑load systems, multithreading, and performance tuning
• Experience developing distributed systems using microservice architecture (event‑based)
• Experience with messaging systems like Redpanda and Kafka
• Hands‑on experience with Kubernetes and containerization (Docker); experience working on cloud platforms (Azure preferred)
• Excellent knowledge of relational databases (SQL) and NoSQL databases
• Strong communication skills and the ability to collaborate across teams
• A growth mindset and eagerness to stay current with industry trends

Education

• Bachelor’s degree in computer science, Software Engineering, or equivalent professional experience

Benefits

• Work on mission‑critical systems used globally
• Ownership, and room to grow technically and personally
• A strong, collaborative engineering culture with talented peers
• Support for continued technical and professional development

Working Environment

• Hybrid (Office location: Avenida Carrera 9A – Avenida Carrera 9A # 115‑06/30 Edificio Torre Tierrafirme Bogotá, 110111 Colombia)