Middleware Developer

• Deskripsi pekerjaan Middleware Developer PT Sigma Global Teknologi
• Middleware Developer

Job Description

• Design, develop, and maintain robust backend services and RESTful APIs using Node.js and .NET Core.
• Develop APIs, webhooks, and ensure seamless system integrations with third-party and enterprise systems.
• Implement communication platform features, including WhatsApp Messaging, Calling, and contact center integrations.
• Develop and manage secure authentication and authorization services utilizing Azure AD B2C and Duende IdentityServer.
• Implement security protocols including SSO, MFA, OAuth2, and OpenID Connect (OIDC).
• Troubleshoot system issues, optimize performance, and provide hands-on production support.
• Prepare comprehensive technical documentation and actively participate in solution design.

Qualifications

Education: Minimum Bachelor’s Degree (S1) in Computer Science, Information Technology, Information Systems, or a related field (Minimum GPA: 3.00).

Experience: Fresh graduates are highly welcome to apply.

Soft Skills: Strong analytical and problem-solving abilities, excellent communication and teamwork skills, and the capacity to work independently with a high sense of ownership.

Technical Requirements

• Strong proficiency in Node.js, JavaScript, and TypeScript.
• Solid experience with .NET Core / C# development.
• Proven experience in developing REST APIs and microservices architectures.
• Hands-on experience with Identity & Access Management: Azure AD B2C, Duende Identity Server, OAuth2, OIDC, JWT, and SSO.
• Database proficiency: MySQL, SQL Server, PostgreSQL, or Redis.
• Familiarity with DevOps and Cloud ecosystems: Git, CI/CD pipelines, Docker, AWS, or Azure.

Highly Preferred (Bonus Points)

Priority will be given to candidates with experience in: Telephony, SIP/VoIP, WebRTC, PBX, Contact Center integration, WhatsApp Business Platform, or communication platform development.