Senior Back End Developer (C# .NET)

Accountabilities: Design, develop, and maintain the backend of a proof-of-concept web application using C# and .NET. Translate requirements gathered from subject matter experts (SMEs) and UX/UI designs into functional, reliable, and maintainable software. Work under the technical direction of the Software Architect, contributing to architectural decisions and implementation strategies. Use agentic Software Development Life Cycle (SDLC) tools and AI-assisted development pipelines as part of daily engineering activities. Apply modern development practices to accelerate implementation while maintaining code quality, reliability, and performance. Collaborate with technical and business stakeholders to ensure requirements are clearly understood and translated into effective backend solutions. Contribute to demonstrating the capabilities and practical value of AI-native software delivery within a complex financial services environment. Requirements At least 8 years of professional software engineering experience, operating at a High Senior to Staff Engineer level. Strong hands-on experience with C# and .NET backend development. Recent practical experience using agentic software delivery pipelines, ideally within the last 1–2 years. Demonstrated experience incorporating agentic SDLC tools into everyday software development workflows. Ability to translate business requirements and design specifications into high-quality technical implementations. Strong problem-solving skills, technical autonomy, and the ability to work effectively under architectural guidance. Good English communication skills, both written and spoken, to collaborate with international teams. Must be based in Brazil or Colombia and comfortable working remotely. Availability to participate in virtual meetings through Microsoft Teams or Google Meet. Nice to have: Frontend development experience or a broader full-stack engineering background. Previous experience in the mortgage industry or financial services. Familiarity with loan origination systems and related financial workflows. Benefits Fully remote work model. Health and dental insurance. Meal and food allowances. Childcare assistance. Extended paternity leave. Life insurance. Profit-sharing and annual results participation (PLR). Gym and wellness partnerships through Wellhub (Gympass) and TotalPass. Access to a continuous learning platform through CI&T University. Discounts through a dedicated benefits club. Free online resources focused on physical, mental, and overall well-being. Pregnancy and responsible parenting courses. Partnerships with online learning platforms. Access to language learning programs. Additional health, wellness, and professional development initiatives. Inclusive recruitment process, with dedicated support and reasonable accommodations for professionals with disabilities.