About the Position

Senior Full-stack Developer

Principal Senior Remote

Europe, Latin America

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.

About the Company

Our customer is a leading SaaS provider in the FinTech industry, specializing in AI-native revenue platforms for finance and accounting teams. Their solutions cover subscription management, billing, and revenue operations for companies of all sizes. With a strong focus on compliance, scalability, and integration with multiple payment gateways, they help businesses streamline financial processes and accelerate growth.

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

Nice to Have

• Experience with NestJS and/or Turborepo
• Familiarity with monorepo environments (pnpm or similar)
• AWS expertise

We Offer

• Різноманітність доменів та бізнесу
• Великий вибір технологій
• Медична та юридична підтримка
• Круте та живе ком'юніті професiоналiв
• Безперервна освіта та можливість росту
• Гнучкий графік
• Віддалена робота
• Стильний та комфортний офіс (для твого комфорту вибору звідки працювати)
• Спортивні заходи та спільноти

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