Sigma Software logo
Sigma Software

Our Customer is a Sweden-based AdTech company specializing in advanced self-serve advertising platforms that automate direct transactions between advertisers and major global publishers. Their technology removes traditional friction in ad sales by enabling automation, transparency, and operational efficiency at scale. Platforms are trusted by internationally recognized publishers including TripAdvisor, Bloomberg, The Washington Post, Opera, and Dow Jones, handling millions of transactions worldwide. The project is a strategic architectural transformation toward a Platform-First approach. The company is transitioning from monolithic, client-specific implementations to a standardized, API-driven, multi-tenant ecosystem of reusable microservices. These services power the entire product suite, remaining independent, scalable, and decoupled from frontend or customer-specific customization.

Senior Full-stack Developer

Full-stack EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000

Location

Latin America (LATAM) + 1 moreAll locations: Latin America (LATAM) | Europe

Posted

29 days ago

Salary

0

Seniority

Senior

Job Description

Senior Full-stack Developer

Sigma Software

Role Description 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. 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 Qualifications - 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 Requirements - Experience with NestJS and/or Turborepo will be a plus - Familiarity with monorepo environments (pnpm or similar) - AWS expertise Personal Profile - Enjoys solving complex challenges - Collaborative mindset in distributed teams - Strong problem-solving abilities - Committed to code quality and scalability

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