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Mutant

The Business Performance Company

Tech Lead, .NET

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1,001-5,000Since 2016H1B No SponsorCompany SiteLinkedIn

Location

Brazil

Posted

56 days ago

Salary

0

Seniority

Senior

Bachelor DegreePortugueseAzureSOAP.NET

Job Description

Tech Lead, .NET

Mutant

• Serve as the technical reference for the technology team, influencing Dev, BI, and QA teams horizontally. Lead by technical example, through delivery quality and the dissemination of best practices. • Guide the understanding of requests from internal clients, responsible for effort estimation and distribution of tasks according to each squad member's technical profile. • Actively contribute with code (~50% of the time), working on development and evolution of solutions. Participate in architecture decisions and guide the team's technical choices. • Define and review technical standards and coding best practices. Identify technical debt and propose continuous improvement initiatives. • Monitor technical progress of activities and flag impediments. • Provide technical mentorship, supporting the individual growth of squad members and raising the team's collective technical level. • Support the technical onboarding of new members. Promote a culture of AI adoption within the team and lead initiatives for process automation and productivity gains.

Job Requirements

  • Strong proficiency in C# / .NET, common software architectures (REST, microservices, event-driven), integration with REST and SOAP APIs, Git flow and versioning, technical effort analysis and estimation, code review and reading.
  • Advanced use of AI-assisted coding tools (GitHub Copilot, Cursor or similar), prompt writing for code generation, review and refactoring, critical assessment of AI outputs, basic understanding of LLM operation (context, tokens, temperature).
  • Intermediate knowledge of conversational bot and IVR ecosystems.
  • Understanding of DevOps and CI/CD, secure development best practices, and NLP applied to conversational solutions.
  • Advanced prompt engineering (few-shot, chain-of-thought), knowledge of leading models (GPT, Claude, Gemini and open-source), use of agents and AI automation flows (n8n, LangChain or similar), ability to identify productivity gains with AI in team processes.
  • Degree in Computer Science, Software Engineering, Information Systems or related fields.
  • Certifications in software architecture or Microsoft platforms (.NET, Azure) are a plus.
  • Courses focused on AI applied to development and prompt engineering.

Benefits

  • Medical and dental coverage;
  • Life insurance;
  • Commuter subsidy (vale-transporte);
  • Meal and food allowances;
  • Wellhub (Gympass);
  • Childcare assistance;
  • Support for children with disabilities;
  • Performance bonus;
  • Birthday day off;
  • Alelo Multibenefits;
  • Allya - partnerships and discounts via the app;
  • Pet health plan;

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