Senior .NET Developer

USER EXPERIENCE RESEARCHERS PTE. LTD; Região Norte; Presencial; BRL 180 000 - 260 000; Tempo integral

Resumo da oferta

USER EXPERIENCE RESEARCHERS PTE. LTD is seeking an experienced backend engineer to design, build, and maintain RESTful APIs using .NET 8 / ASP.NET Core. You will work with PostgreSQL for data schemas and access, and implement enterprise authentication and directory services integration.

You will collaborate with frontend teams to provide clean API contracts for React/TypeScript apps, containerize services with Docker, and contribute to CI/CD pipelines with Jenkins and GitLab CI.

Qualificações

• 5+ years of professional experience building backend services in C# / .NET (ASP.NET Core preferred).
• Strong understanding of REST API design, authentication/authorization patterns, and secure coding practices.
• Experience with relational databases (PostgreSQL, SQL Server, or similar) and ORMs (Entity Framework or equivalent).
• Familiarity with containerization (Docker) and CI/CD pipelines.
• Experience with version control (Git) and collaborative development workflows.
• Strong debugging, troubleshooting, and problem-solving skills.
• Clear written and verbal communication, with cross-functional collaboration with frontend, QA, and infra teams.

Responsabilidades

• Design, build, and maintain RESTful APIs and backend services using .NET 8 / ASP.NET Core.
• Work with PostgreSQL to design schemas, write queries, and manage data access layers.
• Implement and maintain authentication/authorization flows and directory services integration.
• Integrate backend services with third-party and enterprise systems via enterprise APIs.
• Collaborate with frontend engineers to design clean API contracts used by React/TypeScript apps.
• Containerize services with Docker and support CI/CD pipelines (Jenkins, GitLab CI).
• Write unit and integration tests, participate in code reviews, and uphold code quality (SonarQube).
• Troubleshoot production issues with structured logging and observability practices.
• Contribute to architecture decisions for new services and evolution of existing ones.

Conhecimentos

C#/.NET

REST API design

PostgreSQL

CI/CD

Git

Ferramentas

Docker

Jenkins

GitLab CI

EF Core

SonarQube

Descrição da oferta de emprego

Key Responsibilities:

• Design, build, and maintain RESTful APIs and backend services using .NET 8 / ASP.NET Core
• Work with PostgreSQL (via Npgsql/Entity Framework) to design schemas, write efficient queries, and manage data access layers
• Implement and maintain authentication/authorization flows, including enterprise authentication and directory services integration
• Integrate backend services with third-party and enterprise systems (e.g., ITSM platforms, directory services, internal enterprise APIs)
• Collaborate with frontend engineers to design clean API contracts consumed by React/TypeScript applications
• Containerize services with Docker and support CI/CD pipelines (Jenkins, GitLab CI)
• Write unit and integration tests, participate in code reviews, and uphold code quality standards (e.g., SonarQube)
• Troubleshoot and resolve production issues across the stack, with structured logging (log4net) and observability practices
• Contribute to architecture decisions for new services and the evolution of existing ones

What We're Looking For

• 5+ years of professional experience building backend services in C# / .NET (ASP.NET Core preferred)
• Strong understanding of REST API design, authentication/authorization patterns, and secure coding practices
• Experience working with relational databases (PostgreSQL, SQL Server, or similar) and ORMs (Entity Framework or equivalent)
• Familiarity with containerization (Docker) and CI/CD pipelines
• Experience with version control (Git) and collaborative development workflows
• Strong debugging, troubleshooting, and problem-solving skills
• Clear written and verbal communication, with the ability to work cross-functionally with frontend, QA, and infrastructure teams

Nice to Have (Advantages)

• Full-stack development experience — comfort working across the stack with React/TypeScript front ends, from API design to UI integration
• AI/ML knowledge — familiarity with applying AI/LLM tooling to developer workflows, automation, or product features (e.g., integrating LLM APIs, prompt engineering, or AI-assisted development practices)
• Automation experience with Python and/or Ansible Automation Platform (AAP) — building or maintaining scripts, playbooks, or jobs for infrastructure automation, compliance checks, or operational tooling

What Makes You Stand Out

• Experience integrating enterprise systems with enterprise directory services or similar identity providers
• Exposure to hybrid environments where .NET services, Node/React front ends, and Python-based automation coexist and need to interoperate
• A track record of improving reliability, security, or maintainability of backend systems in a production environment