Job Title: Principal Engineer — Full Stack, Cloud & AILocation: Medellín, Colombia

Type of Contract: 6-Month Contract-to-Hire | Full-Time upon mutual agreement

Salary Range: Market Rates

Language Requirements: Advanced English (Professional Written and Verbal Communication)We are seeking a skilled Principal Engineer with deep expertise in Full Stack Development, Cloud Architecture, and AI-powered applications to join our growing team.

You will play a key role in designing and scaling a multi-tenant SaaS platform while leading engineering standards, technical decision-making, and development execution across distributed teams.

Your work will directly impact product delivery, platform scalability, client success, and the company's long-term technology strategy.

Key Responsibilities- Own the technical architecture of the company's SaaS platform, designing, implementing, and evolving systems as the product scales toward commercial release.- Write production-grade code daily across .NET (C#), React, Azure services, APIs, and data-driven applications.- Lead, mentor, and provide technical direction to engineering teams across onshore and offshore environments.- Establish and enforce engineering best practices, coding standards, architecture principles, and development processes.- Design and implement secure multi-tenant SaaS architectures, including RBAC and SBAC authorization models.- Build and integrate AI-powered capabilities including LLM orchestration, RAG pipelines, agentic workflows, MCP-based architectures, and intelligent automation solutions.- Produce and maintain architecture documentation, technical diagrams,



API specifications, ADRs, operational runbooks, and implementation guides.

Must-Have Qualifications- 10+ years of professional software engineering experience with demonstrated architect-level ownership and decision-making.- Extensive experience building enterprise applications using .NET/C#, React, SQL Server, and Microsoft Azure services.- Strong expertise with Azure App Services, Functions, Service Bus, API Management, Key Vault, Managed Identities, and Azure Dev

Ops.- Proven experience designing and operating multi-tenant SaaS platforms with application-level and database-level tenant isolation.- Hands-on experience implementing RBAC and SBAC authorization frameworks within enterprise applications.- Experience delivering production AI solutions utilizing LLM APIs, Retrieval-Augmented Generation (RAG), MCP architectures, and agentic AI workflows.- Strong leadership experience mentoring developers, conducting architecture reviews, and guiding engineering teams through complex technical initiatives.- Excellent communication skills with the ability to explain technical decisions to executive stakeholders, clients,



and cross-functional teams.- Active user of AI-assisted development tools with a demonstrated AI-forward engineering mindset.- Willingness to travel regularly to Austin, Texas and relocate in the future if required as part of a full-time conversion.

Preferred Qualifications- Experience with Microsoft Fabric, including data pipelines, Lakehouses, Delta Tables, Semantic Models, and Direct Lake implementations.- Hands-on expertise with Power BI, including semantic model design, DAX development, and enterprise reporting solutions.- Experience deploying and managing solutions within Azure AI Foundry.- Proficiency in Python, PySpark, Databricks, or related data engineering technologies.- Previous experience working within an MSP, SaaS, consulting, or technology services organization.- Familiarity with Microsoft Logic Apps and workflow automation solutions.- Microsoft certifications such as AZ-204, AZ-305, or equivalent cloud architecture certifications.

What We Offer- Opportunity to serve as the principal technical leader for a rapidly growing SaaS platform.- Direct collaboration with executive leadership and key business stakeholders.- High-impact role with ownership of architecture, engineering standards, and technical strategy.- Exposure to cutting-edge AI, cloud, and SaaS technologies.- Collaborative environment where contributions are highly visible and directly influence company growth.- Opportunity to shape engineering team structure, hiring strategy, and long-term technical direction.- Clear path to long-term leadership and organizational impact within a fast-growing technology company.

Originally posted on Himalayas#J-18808-Ljbffr

📌 Principal Engineer — Full Stack, Cloud & AI (Colombia)
🏢 Nearshore Business Solutions
📍 Colombia