Job Title: Senior Full-Stack Engineer (Azure / .NET)

Employment Type: Full-Time & Long-Term

Location: Remote from Argentina, Chile, Mexico, Uruguay, Brazil, Colombia

Time Zone: Must align with Central Time (CT) business hours

Industry: Healthcare ServicesAbout the Role

Kopius is seeking a Senior Full-Stack Engineer to join our team supporting a leading healthcare services organization. This role focuses on building end-to-end across a .NET backend and a modern web front end on Azure, helping modernize a legacy application while incorporating new AI-driven capabilities into the product.

This is a senior, hands-on engineering role for someone deeply fluent in the Microsoft ecosystem — comfortable working across the full stack, contributing to legacy-to-modern rewrites, and collaborating closely with data and AI engineers to bring intelligent features to production. The ideal candidate operates independently, brings strong engineering judgment, and adds ideas proactively beyond ticket execution.

Key Responsibilities

• Design, build, and maintain full-stack features across the .NET backend and modern web front end
• Develop and integrate REST / Web APIs and microservices on Azure
• Model and optimize relational data; ensure sound database design across SQL Server and Azure SQL
• Contribute to the legacy-to-modern rewrite — refactor, re-architect, and migrate to current patterns
• Own CI/CD and deployment through Azure DevOps
• Partner with data and AI engineers on AI-enabled features across the product
• Participate in code reviews, design reviews, and architectural discussions
• Champion engineering best practices and code quality standards across the team
• Troubleshoot and resolve production issues, contributing to root cause analysis and long-term reliability improvements

• Basic Qualifications
• Strong written and verbal communication skills, with the ability to collaborate effectively across distributed teams
• Self-motivated, quick learner, and adaptable to new technologies and legacy systems
• Thrives in a team environment, actively contributes to collaboration, fostering a sense of community
• Excellent problem-solving and analytical skills, with a keen eye for detail and a proactive approach to issue resolution
• Brings ideas proactively — not just a ticket executor, but a contributor to the broader technical direction and AI initiatives of the team
• Strong sense of accountability and ownership over deliverables and outcomes
• Comfort operating in healthcare or other regulated data environments where security and compliance matter
• Self-directed operator — able to hit the ground running with minimal ramp

• Technical Requirements
• Senior-level, hands-on experience with C#, .NET / .NET Core, and ASP.NET Core
• Hands-on experience with a modern front-end framework — React or Angular
• Hands-on Microsoft Azure experience — App Service, Functions, Service Bus — with microservices architecture
• Strong REST / Web API development experience
• Strong SQL Server / Azure SQL database design and optimization skills
• Proficiency with Git and CI/CD pipelines on Azure DevOps
• Experience contributing to legacy modernization or rewrite initiatives
• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field (or equivalent professional experience)
• Nice to have: Containerization experience with Docker and AKS
• Nice to have: Hands-on experience with Entity Framework Core
• Nice to have: Experience with message-driven architectures
• Nice to have: Prior exposure to AI-enabled features or integration with AI/ML services
• Nice to have: Experience in healthcare, life sciences, or other regulated industries

Perks & Benefits working at Kopius!

• Results-Driven Culture: outcome-focused projects with hybrid flexibility (Retiro office)!
• Continuing Education: Ongoing training, workshops, and sponsored courses
• Career Growth: Abundant opportunities for development and advancement
• Language Learning: Online English classes to boost communication skills
• Referral Bonuses: Rewards for referring new talent
• The Box – Quarterly: Curated snack boxes and company swag every three months
• Keep Moving: Reimbursement for physical activity memberships

About You | At Kopius, we value individuals who embody our core values:

• Community and Connection: Foster team connection; contribute to a collaborative environment.
• Exceptional Experiences: Strive for outstanding communication experiences; align actions with delivering excellence.
• Embrace New Ideas: Demonstrate openness to innovation; adapt and learn quickly.
• Ownership Mentality: Take responsibility and ownership of tasks and projects; drive issues to resolution.
• Walk the Talk: Consistently align actions, communication, and problem-solving with company values.

About Us | We're passionate about technology and driven by our partners' potential to make a difference in the world. Our expert teams in digital strategy, design, and engineering are dedicated to solving complex problems and exploring new frontiers. With over 40 active projects and nearly 600 talented individuals worldwide, we're committed to creatively tackling big challenges and helping our customers stay ahead in a rapidly evolving digital landscape. Join us on this exciting journey of innovation and growth!