Senior .Net Developer; Fluent English - Banking

Job Opportunity

Senior .Net Developer (Fluent English - Banking) at PT Sigma Global Teknologi in Kota Jakarta Barat, DKI Jakarta, Indonesia.

• Status: 6 months contract (extendable)
• Placement:
  Banking Industry (WFO, South Jakarta)
• Salary: 15 - 18 mio gross
• Benefits:
  Laptop provided, BPJS Kesehatan & Ketenagakerjaan, Compensation UUCK 100%, THR Prorate
• English for daily conversation & work environment

We are seeking a highly skilled and experienced Senior Web Developer to design, build, and maintain robust web applications within our enterprise ecosystem. With 5-10 years of experience, you will be responsible for the full development lifecycle, integrating complex systems, ensuring top-tier security compliance, and driving modern Dev Ops and microservices practices.

• Application Development:
  Design and develop high-performance web applications using the .NET Framework and ASP.NET (MVC / Core).
• API & Integration:
  Build and maintain secure API integrations (REST/SOAP) and manage SMTP integration for automated communication services.
• Data & Business Intelligence:
  Write complex, optimized database queries (SQL Server/PostgreSQL) and develop enterprise data workflows and reports using SSIS (Integration Services) and SSRS (Reporting Services).
• Architecture & Modernization:
  Implement and transition applications toward microservices architecture, utilizing containerization (Docker) and orchestration via Kubernetes.
• Dev Ops & CI/CD:
  Support and collaborate on automated deployment pipelines through a solid understanding of CI/CD practices and basic cloud integration (Azure, AWS, or GCP).
• Security & Compliance:
  Proactively implement code-level defenses for vulnerability & penetration preventive measures (OWASP Top 10, data encryption, secure authentication).
• Quality Assurance:
  Ensure code reliability and coverage by implementing automation testing frameworks and conducting rigorous code reviews.
• Source Control & Governance:
  Manage code repositories and branching strategies using advanced source control tools (Git/Git Hub/Git Lab).

• 5 – 10 years of professional experience in web development, specifically focusing on the .NET ecosystem.
• Fluent in English (both written and verbal) for daily coordination, technical documentation, and global stakeholder management.
• Expert-level knowledge of .NET Framework, ASP.NET (MVC / Core), and C#.
• Advanced skills in database queries, SSIS, and SSRS.
• Proven experience with source control (Git), integration tools, and reporting systems.
• Strong understanding of microservices, Docker, and Kubernetes.
• Solid familiarity with CI/CD pipelines and foundational cloud integration concepts.