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Senior .NET Engineer - Production Support

External
S$84K–S$144K/yrFull-timeUnknownToday
Information Technology
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Responsibilities

  • Design, develop, and maintain applications using C#, .NET Framework (.NET 4.5+), frontend frameworks, and SQL Server in a production-critical environment.
  • Take end-to-end ownership of assigned modules, including development, enhancements, and defect resolution.
  • Provide L2/L3 production support , including incident troubleshooting, root cause analysis (RCA), and permanent remediation.
  • Manage and prioritise high-volume work queues / operations tasks , ensuring SLA compliance.
  • Drive code quality and maintainability , including refactoring and reduction of technical debt.
  • Collaborate with cross-functional teams to resolve integration and system dependencies.
  • Review and approve technical designs, code, and documentation , ensuring adherence to standards.
  • Proactively identify risks and recommend improvements to enhance system performance, stability, and observability .
  • Utilise monitoring and logging tools to detect issues early, analyse system behaviour, and improve reliability.
  • Mandatory Requirements
  • 6-8+ years of hands-on experience in .NET development within enterprise systems.
  • Strong backend expertise in: C#, ASP.NET / MVC (mandatory)SQL Server /Oracle DB (query optimization , indexing, performance tuning)
  • Frontend experience in: AngularJS OR ReactJS (mandatory at least one, hands-on) Exposure to modern frontend frameworks is an advantage
  • Proven experience in: Application Maintenance & Support (AMS) / production support environmentsIncident management, RCA, and issue ownership
  • Mandatory experience in Public Sector / Government projects
  • Experience in domain systems such as healthcare, insurance, or other large-scale transactional systems is strongly preferred
  • Strong understanding of:Multi-tier architecture and system integrationsSecure coding practices
  • Hands-on experience with:Version control (Git / TFS)Structured release/delivery processes (CI/CD exposure preferred) Monitoring and observability tools (e.g., logging, alerting, performance monitoring)
  • Strong problem-solving mindset with excellent investigation and troubleshooting skills , with the ability to analyse complex issues, identify root causes, and implement effective resolutions in production environments
  • Proven ability to operate effectively in SLA-driven environments
  • Familiarity with AWS or Azure cloud environments
  • Able to join within short notice (preferred: ≤ 1 month)
  • Advantageous Skills
  • Experience in large-scale, high-transaction systems
  • Exposure to microservices or API-driven architectures
  • Experience with advanced monitoring, logging, and performance tuning tools
  • Behavioural Expectations
  • Strong ownership and accountability mindset
  • Ability to work independently and manage priorities effectively
  • Proactive communicator with stakeholders and project managers
  • Capable of guiding junior developers and enforcing best practices
  • Comfortable operating in a fast-paced AMS/support environment
  • Demonstrates a systematic and analytical approach to problem-solving under pressure

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