Calling All Upstarters!

SENIOR SOFTWARE ENGINEER WANTED!

We are Upstart 13. We are humble, hungry, and competent people who are radically changing the expectations and experience of outsourcing for all participants by challenging barriers that create inequality and by bringing down borders in technology for people everywhere. We’re all about delivering value and doing big things. We have become a game-changer for teams around the world who look to Upstart’s services as a differentiator.

Job Description:

We're seeking a Staff Software Engineer located in Latin America to help us support a high-impact initiative focused on building an AI-ready analytics foundation on Microsoft Fabric. As Staff Software Engineer, you will serve as the hands-on technical lead for a team of senior engineers, translating architectural designs into performant, secure, and production-grade code. 

Your mission is to bridge external ingestion (Azure Data Factory, Synapse, Spark) with Fabric’s semantic layer, primarily using C#/.NET. You’ll write ingestion components, enforce engineering standards, and ensure the platform is ready for the AI and automation phases that follow. This is a key leadership role turning architecture into tangible, tested systems that scale.

Responsibilities:   

• Write high-performance C# libraries, Azure Functions, and Data Factory custom activities for ingestion & validation.
• Build .NET scripts/notebooks to transform OneLake Bronze → Silver → Gold.
• Use .NET to programmatically generate and deploy Fabric semantic models.
• Own end-to-end technical design for user stories; review PRs, enforce code standards, mentor peers.
• Translate architect’s patterns into concrete tasks and backlog items. 
• Implement automated unit/integration tests, static analysis, and performance benchmarking.
• Maintain Git workflows, YAML pipelines (GitHub Actions/Azure DevOps), and environment-as-code deployments.
• Profile pipelines (ADF/Spark) and DirectLake queries; tune partitioning, V-Order, caching, and concurrency settings.
• Expose clean, governed APIs/abstractions so downstream AI agents can consume curated data without re-work.

Qualifications

Experience:

• 12+ years of professional software development and 10+ years of experience with C#/.NET (async, LINQ, performance tuning).
• 3+ years building data pipelines on Azure (Data Factory, Synapse, or Fabric).
• Production experience with lakehouse / Medallion architectures and Delta/Parquet formats.
• Advanced SQL experience and competence in Spark SQL or PySpark.
• Hands-on CI/CD, automated testing, and IaC using GitHub Actions or Azure DevOps.
• Proven record of technical mentorship and leading senior-level engineers.
• Clear communicator comfortable with both technical and non-technical stakeholders.
• Comfortable presenting code and design decisions.

Soft skills:

• Builder’s Mindset: Moves quickly from concept to reliable code.
• Technical Translator: Turns architectural diagrams into digestible engineering tasks.
• Quality Evangelist: Refuses to merge untested or undocumented code.
• Collaborative Coach: Raises the bar through constructive reviews and pairing.
• Adaptable: Comfortable shifting focus as priorities evolve toward AI enablement.

Bonus skills: 

• Fabric .NET SDK, TOM/XMLA, or Tabular Editor scripting.
• Experience exposing data services via gRPC or minimal APIs for AI/ML workloads.
• Performance tuning for DirectLake, Materialized Lake Views.
• Experience with event-driven architectures (Kafka, Event Hubs) and streaming ingestion.

Why Upstart13?

• We put people first at Upstart 13! We believe the world is filled with amazing people and we are willing to go to great lengths to seek out others who share our values to join our cause of bringing down borders in technology for people everywhere.
• We develop leaders at Upstart 13, we focus on what matters to do meaningful work, we own our shit, we stay curious, and we understand responsibility leads to giving. We do big things together!

Perks:

• Job-type: long-term, full-time job.
• Fully remote.
• USD competitive salary.
• 20+ Paid time off days.

Are you ready to join our cause? Be sure to ask, “Why 13?”