SiDi

Senior Fullstack Developer – C#, React

SiDi

full-time

Posted on:

Location Type: Hybrid

Location: Manaus • Brazil

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Job Level

Senior

Tech Stack

ApacheDockerERPGrafanaJavaScriptKubernetes.NETPrometheusPythonReact

About the role

  • Define the solution's technical architecture (frontend, backend, AI, data and integrations), ensuring scalability, performance and security.
  • Lead design decisions involving Data Lake, ingestion and processing pipelines, and integration with enterprise systems (ERP, BI, APIs).
  • Support the engineering team in building modular, reusable components aligned with the client's architecture and software governance best practices.
  • Ensure compliance with LGPD (Brazilian Data Protection Law), encryption and authentication policies, and information security standards.
  • Collaborate with data scientists on the orchestration of AI/LLM models (LangChain, LangGraph) and integration with recommendation agents and virtual assistants.
  • Perform code reviews and define standards for technical documentation and version control.
  • Support the project manager and Product Owner with technical estimates and strategic roadmap decisions.

Requirements

  • Strong experience in software architecture, preferably in corporate data and AI environments.
  • Proficiency in .NET, Python and React.js, with experience building RESTful APIs and microservices.
  • Experience with governance and security tools such as Apache Atlas, Keycloak, TLS/AES and MFA.
  • Experience with DevOps (GitLab CI/CD, Docker, Kubernetes) and observability tools (Prometheus, Grafana).
  • Knowledge of applied AI models (transformers, LLM orchestration, embeddings) is a plus.
  • Bachelor's degree in Computer Engineering, Information Systems, Computer Science or related fields.
  • Intermediate English (speaking, writing and reading).
Benefits
  • 40-hour workweek under CLT employment, flexible hours, hybrid work options and a home-office allowance
  • Gympass, workplace exercise sessions, on-site massage services and psychological support
  • Medical and dental plans for you and your family
  • Childcare allowance for our little SiDiers, 120-day maternity leave and extended paternity leave
  • Company contributions to a private pension plan
  • Education and specialization incentives, support for language fluency for our SiDiers, and weekly lecture series on global trend topics
  • Flexible meal and food allowances
  • Transportation allowance and parking for those working at the office
  • Annual performance bonus and awards for SiDiers who make outstanding contributions
  • Committees focused on Well-being, Diversity, Mental Health, Social Initiatives, Sustainability and Women's Inclusion in Technology
  • Relaxed, collaborative workspaces with social areas, a decompression room, kitchens, coffee machines and snacks, etc.
  • Dozens of partner discounts and benefits!
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
software architecture.NETPythonReact.jsRESTful APIsmicroservicesAI modelstransformersLLM orchestrationembeddings
Soft Skills
collaborationleadershipcommunicationtechnical estimationstrategic decision making