Full Stack Developer

EXCELTECH COMPUTERS PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Unknown company is seeking a qualified backend/frontend software engineer with extensive experience in .NET Core, microservices, and AWS. The role requires strong backend skills (C#, Java), EF, Docker, and cloud deployment, plus frontend basics (HTML/CSS/JS) and SPA frameworks like React.

Candidate should be comfortable with secure coding practices, unit testing, and AI-assisted development approaches, including SDD, in a predominantly Windows/IIS environment. Singapore-based roles preferred.

Qualifications

• Proven experience with .NET Core stack and related backend tech.
• Strong proficiency in .NET Core, .NET 8, C#, Java, and backend systems.
• Hands-on in microservices architecture and event-driven design patterns.
• Experience with EF for database management.
• Familiarity with Docker and containerization.
• Knowledge of DDD principles in backend development.

Skills

.NET Core

.NET 8

C#

Java

Backend development

Microservices

DDD

OAuth

Security best practices

Unit testing

Spec Driven Development

Legacy .NET Framework

OpenTelemetry

Problem solving

Communication

AI-assisted development

Frontend basics (HTML/CSS/JS)

React/SPA

Education

AWS Certification

Tools

Docker

Entity Framework (EF)

Oracle

IIS/Windows Server

Web.config transformations

Java Quarkus

Node.js

React

OpenTelemetry

Job description

Requirements:

• 1. Proven professional experience working on .NET Core stack.
• 2. Strong proficiency in .NETCore, .NET 8, C#, Java and related backend technologies.
• 3. Experience building microservices architecture and implementing event-driven design patterns.
• 4. Proficiency in Entity Framework (EF) for database management.
• 5. Familiarity with Docker and containerization principles.
• 6. Knowledge of Domain-Driven Design (DDD) principles and their application in backend development.
• 7. Experience implementing OAuthfor authentication and authorization.
• 8. Understanding of security best practices and their application in backend development.
• 9. Hands-on experience with AWS services such as S3, Lambda, API Gateway, RDS, etc.
• 10. Proficiency in frontend technologies such as HTML, CSS, and JavaScript, ASP.NET and WebForms.
• 11. Experience writing unit tests and maintaining a design system with Storybook.
• 12. Strong problem-solving skillsand attention to detail.
• 13. Excellent communication andcollaboration skills.
• 14. Knowledge and experience inutilizing generative AI to develop and review codes via Spec Driven Development(SDD).
• 15. Hands-on experience withlegacy .NET Framework (4.x) applications, including maintenance and incrementalmodernisation.
• 16. Experience with Oracledatabases, including query optimisation and integration with .NET applications.
• 17. Proficiency in deploying andconfiguring applications on IIS and Windows Server, with working knowledge ofWeb.config transformations for environment-specific deployments.
• 18. Hands-on experience with JavaQuarkus framework, including building and deploying cloud-native microservices,with working knowledge of OpenTelemetry for distributed tracing andobservability.

Preferred Qualifications:

• 19. Preferably more than 5 yearsof experience as a full stack software engineer.
• 20. Experience working in bothUnix and Windows operating environments are preferred.
• 21. AWS certification (e.g., AWSCertified Developer, AWS Certified Solutions Architect).
• 22. Experience with Node.js forserver-side development.
• 23. Familiarity with RDSdatabases such as MSSQL.
• 24. Knowledge of CI/CD pipelines and DevOps practices.
• 25. Understanding of Agile development methodologies.
• 26. Experience with event-driven development patterns and architectures, as well as frontend development using React or other Single Page Application (SPA)frameworks.