Senior Full Stack Developer (.Net)
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Bangsar, Selangor

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Hybrid

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Direct hire

|Job ID 7891|Posted Aug 20, 2025
JOB DESCRIPTION

About Horizontal: Established since 2003 in the US, Horizontal solves complex challenges across two distinct businesses: Horizontal Digital and Horizontal Talent. We are consistently recognized for being a top workplace and one of the fastest growing private companies. Horizontal Talent specializes in staffing for IT, Digital & Creative and Business & Strategy markets. We have global offices in US, UAE, India, Malaysia and Australia.

Purpose of the Role

  • Build and maintain end-to-end software solutions (both frontend and backend) for web and mobile.
  • Ensure applications are robust, scalable, secure, and user-friendly.
  • Provide technical leadership, mentor juniors, and help make architectural decisions.

Key Responsibilities

Architecture

  • Work with Lead Developer & DevOps on architecture design.
  • Ensure coding follows standards, patterns, and security best practices (e.g., OWASP).

Leadership

  • Support the Lead Developer in decision-making and code reviews.
  • Mentor junior developers.
  • Research and promote best practices & new technologies.

Development & Documentation

  • Main responsibility: hands-on coding and delivering solutions.
  • Full software development lifecycle: requirements ? design ? coding ? testing ? deployment.
  • Work with product managers, QA, and cross-functional teams.
  • Maintain clear technical documentation.

Production Support

  • Monitor live systems for performance/reliability.
  • Troubleshoot and fix incidents quickly.
  • Contribute to long-term fixes (root cause analysis).
  • Write runbooks/knowledge base articles.

Skills & Experience Needed

  • 5+ years as a Full Stack Developer.
  • 2+ years in solution design/architecture.
  • SOLID, OOP, design patterns, microservices, cloud patterns, TDD/BDD.
  • Backend: .NET Framework 4.x+, .NET Core (C#, ASP.NET, Web API).
  • Database: SQL Server, PostgreSQL, Entity Framework.
  • Frontend: Angular 9+, JavaScript, jQuery, CSS.
  • APIs: RESTful, GraphQL.
  • Cloud & DevOps: Microsoft Azure (Functions, Service Bus, Blob Storage, AKS, etc.). CI/CD pipelines, Terraform, Azure DevOps.
  • Agile: SCRUM, Kanban, SAFe/Spotify.
Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. 

We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact us.

All applicants applying must be legally authorized to work in the country of employment.