Principal Full Stack Engineer – AI First Development

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Ubiminds

WebsiteLinkedInAll Job Openings

51 - 200 employees

🇺🇲 Ubiminds empowers Latin American talent to build meaningful careers, relationships, and products in American tech companies.

📋 Description

• Design, develop, and deliver scalable multi-tenant SaaS applications using .NET, Angular, SQL Server/PostgreSQL, and AWS. • Own end-to-end delivery of features, from domain modeling and backend services through frontend implementation, automated testing, deployment, and production support. • Generate production-ready code using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, and Replit-based workflows. • Collaborate with Architects to define application architecture and validate technical approaches through Proof of Concepts (PoCs). • Design systems using modern architectural patterns including: • Domain-Driven Design (DDD) • CQRS • Event-Driven Architecture • Backend-for-Frontend (BFF) • API Gateway • Build modern Angular applications using standalone components, Signals, RxJS, Reactive Forms, and reusable UI architectures. • Design efficient database models and optimize SQL performance for high-volume SaaS applications. • Implement scalable integration, messaging, and distributed system patterns. • Troubleshoot complex production issues, perform root cause analysis, and continuously improve system reliability and performance. • Mentor engineers through architecture guidance, technical leadership, code reviews, and knowledge sharing. • Drive engineering best practices around quality, automation, security, observability, and AI-powered software development.

🎯 Requirements

• 10+ years of professional software engineering experience. • Experience as a Principal Engineer, Lead Engineer, Software Architect, or equivalent technical leadership role. • Expert-level proficiency with: • C# • .NET • Entity Framework • Angular • SQL Server and/or PostgreSQL • Strong experience designing and building: • Multi-tenant SaaS applications • Distributed systems • REST APIs • Event-driven architectures • Deep expertise with: • Domain-Driven Design (DDD) • CQRS • Secure and scalable application architecture • Advanced knowledge of SQL optimization, data modeling, Redis, and OpenSearch/Elasticsearch. • Experience with automated testing, CI/CD pipelines, Git, Agile methodologies, and modern DevOps practices. • Experience with observability platforms and code quality tools such as SonarQube, Mend, Datadog, CloudWatch, or similar. • Hands-on experience using AI-powered development tools such as GitHub Copilot, Cursor, Claude Code, or similar coding assistants. • Strong leadership, mentoring, communication, and problem-solving skills. • Bachelor's degree in Computer Science, Engineering, or equivalent professional experience. • English proficiency at C1 level (written and verbal).

🏖️ Benefits

• Full support from Ubiminds, including career guidance, HR, and administrative services. • Remote-first culture with outstanding opportunities for international career growth. • Opportunity to influence platform architecture, coding standards, and long-term technical strategy.