Senior Back End Developer (C# .NET) (Fully Remote)

Ciandt; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

CI&T is seeking an experienced Senior Software Engineer to build a POC web backend in C# within our agentic SDLC harness. You will translate SME requirements and UI designs into working software and report to the Software Architect. This is a fully remote role for candidates in the Americas.

Bring 8+ years in software engineering, strong C#, and hands-on use of agentic delivery pipelines in the last 1–2 years. Mortgage industry experience is a plus.

Qualifications

• 8+ years of software engineering experience 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.
• Based in Brazil or Colombia; fully remote, joining calls via Microsoft Teams or Google Meet.

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.

Skills

C#

Agentic pipelines

Tools

Agentic SDLC tools

Job description

• 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.
• 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.

CI&T helps large enterprises transform AI potential into real business impact with AI deployment, AI‑native execution, and tech‑integrated business solutions. With 30 years of experience and 8,000 employees across 25+ countries, they accelerate innovation in areas like data, AI, and martech.