Senior Software Engineer

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 are seeking a talented Senior Software Engineer in Latin America to join our international team and contribute to building high‑quality, scalable applications across web, mobile, desktop, or service‑oriented environments. This role is hands‑on, collaborative, and ideal for engineers who enjoy working across diverse technologies and adapting to evolving product needs.

You will design and implement production‑ready features, write clean and maintainable code, and support the full software development lifecycle from discovery to delivery. This is a great fit for someone who thrives in dynamic environments, values strong engineering fundamentals, and is comfortable working across front‑end, back‑end, or full‑stack responsibilities depending on future team and project needs.

Responsibilities

End‑to‑End Software Development:

• Design, develop, and maintain high‑quality software solutions across the stack.

• Build modular, testable, scalable components like front‑end, back‑end, or full‑stack depending on role alignment.

• Implement and integrate APIs, services, and data sources.

• Write clean, maintainable code following industry best practices and internal standards.

Collaboration & Agile Delivery:

• Work closely with product managers, designers, architects, and other engineers to define requirements and deliver features.

• Participate in Scrum or agile ceremonies, contributing to planning, estimation, and continuous improvement.

• Conduct and participate in code reviews, ensuring maintainability and technical quality.

System Architecture & Technical Growth:

• Contribute to architectural discussions, design patterns, and solution evaluation.

• Apply and promote modern engineering practices, such as modular architecture, separation of concerns, and design patterns.

• Support modernization efforts, refactoring, or technical migrations as needed.

Quality, Testing & Operations:

• Implement automated testing appropriate to the role (unit, integration, UI, performance).

• Troubleshoot and debug complex issues in production and development environments.

• Support reliability, monitoring, and performance improvements across applications.

• Assist in smooth deployments, releases, and post‑implementation support.

Continuous Learning & Best Practices:

• Stay updated on modern languages, frameworks, tools, and industry standards.

• Share knowledge with peers and contribute to engineering excellence.

• Identify opportunities to improve system architecture, code quality, and team processes.

Qualifications

Technical skills:

• 6+ years of professional software engineering experience delivering production applications.

• Strong proficiency in modern programming languages and frameworks, whether front‑end (React.js), back‑end(Python, Node.js, C#), or full‑stack.

• Hands-on experience building and maintaining scalable, reliable applications (web, mobile, or distributed systems).

• Ability to design and implement clean, maintainable, and testable code following industry best practices.

• Solid understanding of application architecture, design patterns, and the full SDLC.

• Experience building, consuming, and implementing REST APIs and integrating applications with services, workflows, and data sources.