Senior Full-stack Developer

Are you passionate about building scalable, high-load systems and tackling complex engineering challenges? Join Sigma Software’s team as a Senior/Principal TypeScript Full Stack Engineer with a strong backend focus, and work on a modern, high-impact product alongside a distributed, collaborative team.

This role is open to candidates based in LATAM and Europe, offering the flexibility to work in a global environment and contribute to cutting-edge architecture while enhancing your expertise in backend development.

At Sigma Software, we value innovation, technical excellence, and career growth. You’ll be part of a project where your work directly influences product performance, scalability, and user experience.

Requirements

• 5+ years of experience in software engineering
• Strong proficiency in TypeScript with deep backend expertise
• Solid understanding of relational databases and caching systems
• Familiarity with frontend frameworks (React, Next.js)
• Preferred technologies and tools: NestJS, Turborepo, monorepo environments (pnpm or similar)
• Knowledge of cloud environments (AWS preferred) and CI/CD practices
• Strong understanding of software architecture principles and scalability strategies
• Excellent problem-solving skills and ability to work in a collaborative, agile environment

• Upper-Intermediate English level or higher

   

Will be a plus

• Familiarity with monorepo environments (pnpm or similar)

   

Personal Profile

• Enjoys solving complex challenges
• Collaborative mindset in distributed teams
• Strong problem-solving abilities

• Committed to code quality and scalability

   

Responsibilities

• Design, develop, and optimize backend services and APIs for high-load, distributed systems
• Contribute to frontend components using React and Next.js when required
• Ensure scalability, reliability, and security across all services
• Apply best practices in software architecture, code quality, and testing
• Participate in code reviews, mentoring, and technical discussions
• Collaborate with product managers, designers, and other engineers to deliver end-to-end features