Senior Full-stack Developer

Join Sigma Software as a Senior/Principal TypeScript Full Stack Engineer with a backend focus, working on scalable, high-load systems for a leading SaaS provider in the FinTech industry. Contribute to backend services and occasionally to frontend components in a collaborative, agile environment.

Location: LATAM, Europe

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

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

Additional Information

• This role is open to candidates based in LATAM and Europe, offering the flexibility to work in a global environment.
• The project involves designing and maintaining backend services for distributed systems, with occasional contributions to frontend components.
• Technologies include TypeScript, NestJS, Turborepo, React, Next.js, pnpm, relational databases, caching systems, AWS, CI/CD.
• The company values innovation, technical excellence, and career growth.