[Job-31993] Senior Fullstack .NET Developer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 1d ago
The date the source published, not the day we noticed it (2026-09-30). Last seen at its source just now.
We have tracked this listing since 30 Sep 2026 (1 days). The employer's own board has carried it every time we have read it, most recently just now.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Brazil
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay $88.5k–136.5k/yr
Middle 50% of 24 listings that do state pay — Engineering · all levels · Brazil · USD/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
lever employer's own board first seen 1d ago · last seen just now
The listing
Na CI&T , ajudamos grandes empresas a transformar o potencial da AI em impacto real nos negócios com AI Deployment, execução AI-native e tech-integrated business solutions.
Com 30 anos de experiência em transformação tecnológica, aceleramos inovação com expertise em agentic SDLC, application modernization, Data & AI, martech e business strategy.
Somos 8.000 CI&Ters em mais de 25 países, colaborando para construir soluções com impacto real. AI já faz parte da forma como trabalhamos, evoluímos e inovamos todos os dias.
We're looking for a Senior Fullstack .NET Developer to maintain and evolve a set of .NET applications. You will be responsible for the entire ecosystem of a specific business line for our client, work closely with the systems/solutions architect, and maintain daily contact with native English-speaking stakeholders.
For this position the candidate must be experienced in leveraging AI on the day-to-day work. It is not only about coding with AI, but creating Skills, Agents, Tooling, etc, that might enhance development workflows and increase the whole team productivity. This will be the most important differentiator among the candidates.
The position has a strong focus on enhancing, modernizing and automating workflows. The candidate must be capable of maintaining CI/CD pipelines, databases, and AWS infrastructure. Experience on migrating to newer .NET Core versions is a huge differential.
The UI of this set of applications are built with Angular and Vue.js, with some Node.js components for backend services.
Responsibilities:
- Maintain and improve existing .NET Core applications.
- Plan and execute .NET Core upgrades and vulnerabilities mitigations.
- Maintain AWS infrastructure: RDS databases, EC2, Fargate, S3, among other services.
- Evolve APIs and work with multiple external/internal integrations.
- Work with containerized applications using Docker.
- Use Bitbucket, CI/CD, and automated tests as part of the delivery workflow.
- Collaborate with stakeholders to discuss and prioritize tasks and clarify requirements.
- Mentor junior developers.
- Improve the team productivity with AI tooling, processes, and automations.
Requirements:
- 5+ years of experience with .NET Core (C#) and web development.
- Proven experience with .NET version migrations/modernizations.
- Strong experience with SQL and PostgreSQL databases.
- Experience with Angular and/or Vue in production environments.
- Experience with AWS services (RDS, EC2, Fargate, S3, etc.).
- Hands-on experience with Node.js for backend services.
- Proficiency with Docker and containerization.
- Experience with relational databases and integrations with third-party APIs.
- Comfortable with Bitbucket/Git and automated testing.
- Fluent English and strong communication/relationship skills.
Nice to Have:
- Experience with Azure cloud platform.
- Knowledge of Strapi CMS.
- React experience.
- Experience with Mailgun or similar email service providers.
- AI Agents Harness.