[Job - 32531] Senior Back End Developer (C# .NET)

CI&T; Brasil; A distancia; BRL 240.000 - 360.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Health and dental insurance

Meal and food allowance

Childcare assistance

Extended paternity leave

Life insurance

CI&T University (learning platform)

Descripción de la vacante

CI&T is seeking a senior backend engineer to build the loan origination POC backend in C# within our agentic SDLC harness. You will turn SME requirements and UX/UI designs into working software and collaborate with the Software Architect and delivery teams.

Ideal candidates have 8+ years in software engineering, strong C# skills, and hands-on experience with agentic delivery pipelines and tools. This role is remote from Brazil or Colombia, with calls via Teams or Google Meet.

Formación

• 8+ years of experience in software engineering.
• Strong experience with C#.
• Hands-on use of agentic delivery pipelines in the last 1–2 years.
• Experience using agentic SDLC tools day to day.
• Good English.
• Based in Brazil or Colombia; fully remote, joining calls via Microsoft Teams or Google Meet.

Responsabilidades

• Build the POC web application back end in C# using our agentic SDLC harness.
• Turn SME requirements and the UX/UI designs into working software.
• Work under the technical leadership of the Software Architect.
• Use agentic tools in day-to-day delivery.

Conocimientos

C#

Backend development

Agentic SDLC

Herramientas

Agentic SDLC

Descripción del empleo

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

About Us

At CI&T, our rapid growth is fueled by the innovative solutions we create for our global clients. We are building a proof of concept for a new loan origination system for a large US mortgage lender, delivered through an agentic SDLC harness. This role builds the back end and shows what agentic delivery looks like in practice.

Responsibilities

• Build the POC web application back end in C# using our agentic SDLC harness
• Turn SME requirements and the UX/UI designs into working software
• Work under the technical leadership of the Software Architect
• Use agentic tools in day-to-day delivery

Requirements

• 8+ years of experience in software engineering, at High Senior to Staff level
• Strong experience with C#
• Hands-on use of agentic delivery pipelines in the last 1–2 years
• Experience using agentic SDLC tools day to day
• Good English
• Based in Brazil or Colombia; fully remote, joining calls via Microsoft Teams or Google Meet

Nice to Have

• Front-end experience (full-stack profile)
• Experience in the mortgage industry

Join CI&T and be a part of our mission to show what AI-native software delivery can do. If you have a passion for back-end engineering and working in an agentic way, we want to hear from you!

Our benefits

• -Health and dental insurance
• -Meal and food allowance
• -Childcare assistance
• -Extended paternity leave
• -Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;
• - Profit Sharing and Results Participation (PLR);
• -Life insurance
• - Continuous learning platform (CI&T University);
• -Discount club
• -Free online platform dedicated to physical, mental, and overall well-being
• -Pregnancy and responsible parenting course
• -Partnerships with online learning platforms
• -Language learning platform
• -And many more!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here. This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.