.NET Developer

Rapsys Technologies Pte Ltd — Singapore · Posted ~6 hours ago

Skills

.NET 8 ASP.NET Core RESTful APIs PostgreSQL Entity Framework Authentication and authorization JWT LDAP Active Directory Docker CI/CD Unit testing Integration testing Production troubleshooting Npgsql React TypeScript Jenkins GitLab CI SonarQube log4net

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Summary ✨ AI‑Generated

Build and maintain enterprise backend services and REST APIs using modern .NET technologies. You will work with relational databases, authentication systems, directory services, third-party integrations, containers, CI/CD pipelines, automated testing, and production observability while collaborating with frontend engineers.

Highlights

Backend-focused role involving modern .NET, enterprise integrations, cloud-ready containerization, CI/CD, testing, observability, and collaboration with frontend engineers.

Description

Role: Dot Net Developer Jd What You'll Do Design, build, and maintain RESTful APIs and backend services using .NET 8 / ASP.NET CoreWork with PostgreSQL (via Npgsql/Entity Framework) to design schemas, write efficient queries, and manage data access layersImplement and maintain authentication/authorization flows, including JWT bearer auth, Windows/Negotiate authentication, and LDAP/Active Directory integrationIntegrate backend services with third-party and enterprise systems (e.g., ServiceNow-style ITSM platforms, directory services, internal data APIs)Collaborate with frontend engineers to design clean API contracts consumed by React/TypeScript applicationsContainerize 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 practicesContribute 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 practicesExperience working with relational databases (PostgreSQL, SQL Server, or similar) and ORMs (Entity Framework or equivalent)Familiarity with containerization (Docker) and CI/CD pipelinesExperience with version control (Git) and collaborative development workflowsStrong debugging, troubleshooting, and problem-solving skillsClear 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 integrationAI/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 LDAP/Active Directory or similar identity providersExposure to hybrid environments where .NET services, Node/React front ends, and Python-based automation coexist and need to interoperateA track record of improving reliability, security, or maintainability of backend systems in a production environment