Principal Software Engineer (.NET/C#)

Unlock Your Future with Nexaminds!

At Nexaminds, we're on a mission to redefine industries with AI. We're passionate about the limitless potential of artificial intelligence to transform businesses, streamline processes, and drive growth.

Join us on our visionary journey. We're leading the way in AI solutions, and we're committed to innovation, collaboration, and ethical practices. Become a part of our team and shape the future powered by intelligent machines. If you're driven by ambition, success, fun, and learning, Nexaminds is where you belong.

• ]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" data-turn-id="request-WEB:2093ca9d-d6bb-4dac-9795-2b28cd5013d9-1" data-testid="conversation-turn-4" data-scroll-anchor="true" data-turn="assistant">

Eligibility Notice _This position is only open to candidates who are Mexican citizens currently residing in Mexico. Applications from candidates who do not meet this legal and operational requirement will not be considered. We appreciate your interest and encourage you to apply to roles that match your location.

_Nexaminds is looking for a Principal Software Engineer to lead the execution of critical platform modernization initiatives within a large-scale enterprise environment. The ideal candidate has hands-on expertise decomposing production monoliths, building distributed systems, implementing event-driven architectures, and developing cloud-native solutions on Azure. This role is highly execution-focused, with strong ownership of service design, infrastructure, modernization patterns, and delivery of scalable microservices while partnering closely with architects and engineering teams throughout the transformation journey.

Location: MEXICO

Qualifications we are looking for:

• 10+ years of engineering experience at the principal or staff level
• Hands-on experience decomposing a production monolith — you've dealt with data coupling, hidden dependencies, and live system constraints and know what that actually entails
• Deep .NET / C# expertise and strong distributed systems fundamentals
• Direct experience with Cosmos DB, including data modeling for document storage and the tradeoffs involved in migrating from a relational schema
• Solid grasp of event-driven architecture: messaging, CDC, eventual consistency, idempotency
• Comfort writing and owning Terraform for service infrastructure
• Genuine fluency with AI development tools as a daily productivity practice
• The ability to engage as a peer in high-level technical decisions while staying grounded in the work

Nice to have:

• HCM, payroll, benefits, or tax domain experience
• Familiarity with Dapr, Azure Service Bus, Azure Container Apps, or Azure API Management
• Debezium or similar CDC tooling experienc

Job duties:

• Execute hands-on decomposition of a core HCM domain from a large .NET monolith into modern microservices on Azure Container Apps
• Implement strangler fig patterns, anti-corruption layers, and event-driven integration via Dapr and Azure Service Bus
• Own your domain's Cosmos DB design — partition strategy, data modeling, consistency levels, and indexing — migrating from a shared SQL Server schema to a document model
• Define and provision infrastructure using Terraform as a standard part of delivery, not a handoff
• Integrate extracted services with isolved's established identity platform and Azure API Management following paved road architecture standards
• Work with CDC-based data strategies (Debezium) to maintain reporting continuity throughout extraction
• Contribute to technical decisions on decomposition sequencing, seam identification, and shared infrastructure
• Use AI-assisted development — agentic coding, spec-driven development, AI code review — as a core part of how you work, not an experiment
• Surface cross-workstream dependencies and participate in peer-level technical discourse across team

What you can expect from us

Here at Nexaminds, we're not your typical workplace. We're all about creating a friendly and trusting environment where you can thrive. Why does this matter? Well, trust and openness lead to better quality, innovation, commitment to getting the job done, efficiency, and cost-effectiveness.

• Stock options 📈
• Remote work options 🏠
• Flexible working hours 🕜
• Benefits above the law
• But it's not just about the work; it's about the people too. You'll be collaborating with some seriously awesome IT pros.
• You'll have access to mentorship and tons of opportunities to learn and level up.

Ready to embark on this journey with us? 🚀🎉 If you're feeling the excitement, go ahead and apply!