[Hiring] Strong Middle/Senior Full-Stack Engineer @Sigma Software

Role Description

Join a fast-growing fintech product where engineering decisions directly shape business operations and user experience. We are looking for a Strong Middle/Senior Full-Stack Engineer with a Back-end focus to help build scalable onboarding and workflow automation solutions for modern businesses. This is a fully remote opportunity for specialists located in LATAM who enjoy solving ambiguous challenges, taking ownership of features end-to-end, and collaborating closely with Product and Design teams in a startup-like environment.

We at Sigma Software value engineers who think beyond implementation details and actively contribute to product evolution. Here, you will have the opportunity to influence architecture decisions, improve operational workflows, and work on meaningful customer-facing functionality with a high level of autonomy.

Qualifications

• At least 5 years of commercial software engineering experience
• Strong proficiency in TypeScript with solid Back-end development expertise
• Experience designing and delivering production-ready product features end-to-end
• Strong experience with relational databases, preferably PostgreSQL
• Experience developing scalable services and APIs
• Experience working with AWS cloud services
• Understanding of modern software architecture and engineering best practices
• Ability to work independently and take ownership of technical solutions
• Strong problem-solving skills and ability to work with ambiguity
• Excellent communication and collaboration skills
• Product-minded approach to software development
• Upper-Intermediate English level or higher
• Experience participating in code reviews and technical discussions
• Ability to balance technical quality with business and user needs

Requirements

• Experience with NestJS
• Experience with Next.js and React
• Experience with Temporal or other workflow orchestration platforms
• Experience working in startup or high-growth product environments
• Experience in fintech products or platforms
• Background in payment systems, billing, invoicing, or transaction-focused products

Benefits

• Proactive and ownership-driven mindset
• Comfortable working in environments with changing priorities and evolving requirements
• Strong collaboration and communication skills
• Ability to understand business context beyond implementation details
• User- and product-oriented approach to decision-making
• Self-sufficient and adaptable team player