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MOCH SYAIFUL ULUM DWI SEPTIAN
6285967025385 | [email protected]
Experienced Backend Developer with 5+ years of expertise in building scalable and maintainable APIs using NestJS and TypeScript. Proven skills in backend architecture, database optimization (PostgreSQL, MongoDB), and secure authentication (Keycloak, OAuth2). Eager to contribute to impactful backend systems while growing toward a technical leadership role.
Experience
DEVELOPER • PT Missi Idea Selaras
January 2020 - Present | Jakarta Pusat, Indonesia
Developed an interactive WhatsApp bot that processed up to 100K messages daily, significantly improving user engagement through chat automation.
Integrated a payment gateway for digital rewards, supporting 5+ incentive programs with seamless transaction flow.
Built and maintained RESTful APIs powering 10+ web and mobile apps, ensuring performance and reliability at scale.
Streamlined internal development workflows, doubling annual project delivery from ~5 to 10+, while reducing third-party vendor reliance and cutting development costs.
Freelance Backend Developer • PT Harmoni Digital Indonesia
January 2023 - Present | Jakarta Pusat, Indonesia
Built and maintained high-performance RESTful APIs with NestJS and TypeScript, handling over 500K requests per month across multiple services.
Optimized PostgreSQL, MongoDB, and Redis schemas, reducing average API response times by up to 40% through strategic indexing and caching.
Implemented secure, scalable authentication using JWT and Google OAuth2, enabling cross-platform login for 5+ integrated systems.
Integrated critical third-party services, including WhatsApp API, Iris Payment, Firebase Notifications, and Gmail API, enhancing system interoperability.
Developed real-time notification and background task systems with Redis queues, increasing asynchronous task throughput by 60%.
Freelance Backend Developer • Posjoy
June 2021 - April 2022 | Jakarta Pusat, Indonesia
Designed and developed multi-tenant admin APIs with NestJS, TypeScript, and Keycloak integration (OAuth2).
Built tenant registration, session management, and RBAC-based auth endpoints with secure middleware and JWT guards.
Structured MongoDB schemas for tenants, users, and logs in a scalable architecture.
Added activity logging for critical actions to support audits and compliance.
Documented APIs with Swagger.
Education
Politeknik Negeri Malang
Diploma in Information Technology • 2017 - 2019
Focus: Practical learning in programming, database management, networking, and software engineering. Developed strong technical and problem-solving skills through real-world projects and industry-standard tools.
skills
Programming Languages:
TypeScript, JavaScript, PHP, Python
Frameworks & Libraries:
NestJS, React.js, Next.js, Express.Js
Databases:
PostgreSQL, MySQL, MongoDB, OracleSQL, Redis
API & Backend Technologies:
RESTful API, JWT, OAuth2, Webhook Integration
Language
- Indonesian — Mother tongue
- English — Medium
MOCH SYAIFUL ULUM DWI SEPTIAN
6285967025385 | [email protected]
Experienced Backend Developer with 5+ years of expertise in building scalable and maintainable APIs using NestJS and TypeScript. Proven skills in backend architecture, database optimization (PostgreSQL, MongoDB), and secure authentication (Keycloak, OAuth2). Eager to contribute to impactful backend systems while growing toward a technical leadership role.
Experience
DEVELOPER • PT Missi Idea Selaras
January 2020 - Present | Jakarta Pusat, Indonesia
Developed an interactive WhatsApp bot that processed up to 100K messages daily, significantly improving user engagement through chat automation.
Integrated a payment gateway for digital rewards, supporting 5+ incentive programs with seamless transaction flow.
Built and maintained RESTful APIs powering 10+ web and mobile apps, ensuring performance and reliability at scale.
Streamlined internal development workflows, doubling annual project delivery from ~5 to 10+, while reducing third-party vendor reliance and cutting development costs.
Freelance Backend Developer • PT Harmoni Digital Indonesia
January 2023 - Present | Jakarta Pusat, Indonesia
Built and maintained high-performance RESTful APIs with NestJS and TypeScript, handling over 500K requests per month across multiple services.
Optimized PostgreSQL, MongoDB, and Redis schemas, reducing average API response times by up to 40% through strategic indexing and caching.
Implemented secure, scalable authentication using JWT and Google OAuth2, enabling cross-platform login for 5+ integrated systems.
Integrated critical third-party services, including WhatsApp API, Iris Payment, Firebase Notifications, and Gmail API, enhancing system interoperability.
Developed real-time notification and background task systems with Redis queues, increasing asynchronous task throughput by 60%.
Freelance Backend Developer • Posjoy
June 2021 - April 2022 | Jakarta Pusat, Indonesia
Designed and developed multi-tenant admin APIs with NestJS, TypeScript, and Keycloak integration (OAuth2).
Built tenant registration, session management, and RBAC-based auth endpoints with secure middleware and JWT guards.
Structured MongoDB schemas for tenants, users, and logs in a scalable architecture.
Added activity logging for critical actions to support audits and compliance.
Documented APIs with Swagger.
Education
Politeknik Negeri Malang
Diploma in Information Technology • 2017 - 2019
Focus: Practical learning in programming, database management, networking, and software engineering. Developed strong technical and problem-solving skills through real-world projects and industry-standard tools.
skills
Programming Languages:
TypeScript, JavaScript, PHP, Python
Frameworks & Libraries:
NestJS, React.js, Next.js, Express.Js
Databases:
PostgreSQL, MySQL, MongoDB, OracleSQL, Redis
API & Backend Technologies:
RESTful API, JWT, OAuth2, Webhook Integration
Language
- Indonesian — Mother tongue
- English — Medium