Principal Full Stack Software Engineer - AI-First Development (538)

Remote – LATAM / Full-time / Remote

About the Principal Full Stack Engineer – AI First Development Role

Are you eager to advance your career internationally? We are here to assist you!

Ubiminds is recognized as a GPTW-certified, employee-centric organization that collaborates with US-based software companies to expand their global teams. We facilitate the connection between skilled professionals in LATAM and global product companies, offering complete employer-of-record assistance and long-term career progression opportunities.

In this position, you will be an integral part of a product engineering team dedicated to developing a cutting-edge cloud-native SaaS platform from scratch. Collaborating with architects, product managers, designers, and engineers, you will contribute to creating scalable, secure, and high-performing software while integrating AI-first development principles to enhance delivery speed and engineering excellence.

Primary Responsibilities and Requirements

Key Responsibilities

• Spearhead the design, development, and deployment of scalable SaaS applications utilizing technologies like .NET, Angular, SQL Server/PostgreSQL, and AWS.
• Take ownership of feature development, from initial concept to backend and frontend implementation, testing, deployment, and ongoing support.
• Utilize AI-driven development tools to generate efficient code and streamline engineering workflows.
• Work closely with architects to outline application architecture and validate technical strategies via proofs of concept.
• Implement modern architectural patterns including Domain-Driven Design (DDD), CQRS, Event-Driven Architecture, Backend-for-Frontend (BFF), and API Gateway.
• Layout and construct modern Angular applications employing standalone components, Signals, RxJS, and Reactive Forms.
• Develop optimized data models and enhance database performance for scalable applications.
• Resolve complex production issues, conduct root cause analysis, and enhance system reliability.
• Mentor team members through technical guidance, code reviews, and knowledge sharing.
• Promote engineering excellence by incorporating automation, AI-based workflows, and continuous enhancement practices.

Required Skills

• A minimum of 10 years of professional software engineering experience, with a background as a Principal Engineer or similar leadership position.
• Proficient in C#, .NET, Entity Framework, Angular, and SQL Server/PostgreSQL.
• Experience in DDD, CQRS, REST APIs, Event-Driven Architecture, and distributed systems.
• Proven expertise in crafting secure, scalable, multi-tenant SaaS applications.
• Strong knowledge of SQL optimization, data modeling, Redis, and OpenSearch/Elasticsearch.
• Familiarity with automated testing, CI/CD pipelines, Git, Agile methodologies, and modern DevOps principles.
• Hands-on experience with AI coding assistants like GitHub Copilot, Cursor, and Claude Code.
• Excellent communication, mentoring, collaboration, and problems-solving abilities.
• Hold a degree in Computer Science, Engineering, or relevant field, alongside advanced English language skills.

Desirable Skills

• Familiarity with AWS services such as ECS/Fargate, Lambda, SQS/SNS, S3, and RDS.
• Experience with Terraform or AWS CDK, GraphQL, WebSockets, or Server-Sent Events (SSE).
• Knowledge in tools like Playwright or SmartBear TestComplete, as well as monitoring tools like Datadog, CloudWatch, or New Relic.
• Background in developing AI-enabled applications using LLMs, RAG, or Model Context Protocol (MCP).

Work Environment

• Be a part of a product-focused engineering organization dedicated to building a cutting-edge SaaS platform.
• Engage in a collaborative working environment involving Architects, Product Managers, UX Designers, and Engineers.
• Embrace a strong engineering culture centered on technical excellence, individual ownership, and mentorship.
• Experience AI-first development practices closely integrated into the software development lifecycle.
• Contribute to impactful decisions regarding architecture, technical standards, and contemporary development methodologies.
• Hold a role with significant technical autonomy and influence.

About Ubiminds

Our Culture

• Our focus is on placing people first, fostering a culture of continuous improvement and collaborative teamwork.
• Embrace challenges with a positive attitude, and commit to delivering exceptional results.
• Promote transparency, honesty, and openness in all interactions, surpassing expectations with high-quality service delivery.

Perks and Benefits

• Benefit from being associated with a product-centric company and receiving comprehensive back-office support.
• Enjoy the perks of a remote-first policy, a provided MacBook, professional growth opportunities, and free English lessons.
• Participate in our Candidate Referral Program and indulge in the amenities at our Florianópolis office.

Recruitment Process

1. Initial chat with a Tech Recruiter to discuss the role and your background.
2. Client-specific assessment procedures.
3. Receive your offer upon selection.

AI Disclaimer

We utilize AI tools as part of the recruitment process to enhance candidate assessment. Please rest assured that final hiring decisions are made by humans after thorough consideration. For more information regarding data processing, do not hesitate to reach out to us.