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SSSigma Software logo

Sigma Software

São Paulo, br

Strong Middle/Senior Full-Stack Engineer.

FULL TIMEREMOTESENIOR LEVELENGINEERING
  • Design, develop, and maintain end-to-end product features across Back-end and Front-end systems
  • Build scalable services, APIs, and workflow-driven solutions supporting core business operations
  • Collaborate closely with Product, Design, and Engineering teams to define requirements and shape product direction
  • Translate operational and business processes into intuitive and scalable software experiences
  • Participate in architecture discussions, technical planning, and code reviews
  • Own features throughout the full development lifecycle from discovery to deployment
  • Evaluate technical decisions from both engineering and user-impact perspectives
  • Improve product quality, scalability, developer experience, and operational efficiency
  • Work effectively in a startup environment with evolving priorities and changing requirements
  • Contribute proactively to technical and product discussions and suggest improvements when needed
  • 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

WILL BE A PLUS

  • 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

PERSONAL PROFILE

  • 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
Pay
Not stated
Where
São Paulo, br
Work
Remote
Type
Full time
Posted
22 Oct, 2026
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