Resume

Ranggi Rexa Vigor Santoso

Jember, East Java, Indonesia 68117

ranggirexa@gmail.com+6285236051400linkedin.com/in/ranggirexa

About

Software Engineer with 3+ years of experience building robust, user-centric applications. Proficient in backend (Node.js, Golang, PostgreSQL) and frontend (React.js, TypeScript, Next.js) development. Experienced in delivering full-stack solutions across industries including point-of-sale (POS), dairy management, retail, e-identity, and agriculture. Adept at API development, interface design, and collaborating with cross-functional teams to turn complex requirements into impactful digital products.

Skills

  • Programming Languages: Ruby, Node.js, Golang, React, TypeScript
  • Database Management: MySQL, PostgreSQL, MongoDB
  • Tools: Microsoft Office, Git, CI/CD
  • Security: OAuth, JWT

Experience

Fullstack Engineer

PT. Pandawa Agri Indonesia (Banyuwangi, Indonesia) · March 2023 – Present

  • Enhanced farm operations and data management efficiency.
  • Managed and optimized PostgreSQL databases, achieving a 25% increase in query performance and system scalability, and a 40% reduction in response times.
  • Collaborated with cross-functional teams to process data input and visualize reliable information, accelerating project delivery by 25% through early identification and resolution of key issues.
  • Authored comprehensive functional and technical documentation, improving team knowledge sharing and decreasing new developer onboarding time by 25%.

Intern Backend Engineer

PT. Privy Identitas Digital (Yogyakarta, Indonesia) · June 2022 – September 2022

  • Developed backend systems using Golang, MongoDB, and PostgreSQL, gaining proficiency in multi-database technologies within a Microservices architecture.
  • Implemented OAuth 2.0 and JWT for secure API authentication, improving data security and user privacy by reducing unauthorized access incidents by 50%.
  • Contributed to debugging and testing processes, resulting in a 15% reduction in software defects.

Fullstack Engineer

PT. PITA POS (Jakarta, Indonesia) · January 2021 – May 2022

  • Developed and maintained a point-of-sale (POS) system using Ruby on Rails and MySQL, increasing transaction processing speed and reducing downtime by 30%.
  • Created detailed workflow documents, visualizing program designs and concepts to ensure smooth project execution.
  • Implemented new features to enhance the POS system's functionality, contributing to a 15% increase in user satisfaction.

Selected projects

Farm Management System (FMS)

Node.js · React.js · PostgreSQL

  • Supported multiple crop types with varying growth cycles and regional tracking.
  • Developed a web application to monitor land areas and farmer activities.
  • Enabled real-time data collection to help R&D teams formulate more accurate agricultural strategies.

Human Resource Information System (HRIS)

Node.js · React.js · TypeScript · PostgreSQL

  • Built an HR management system to handle employee data, leave requests, and attendance.
  • Designed a dashboard featuring detailed filters and monthly analytics.
  • Integrated authentication and role-based access control for data security.

Customer Relationship Management (CRM)

Node.js · Next.js · PostgreSQL

  • Developed a CRM tool to track leads, customer interactions, and sales team activity.
  • Enabled marketing strategy alignment with visual dashboards and performance metrics.
  • Integrated notification system to follow up with prospects in real-time.

POS Dairy Management System

Ruby on Rails · MySQL

  • Designed for cooperatives to monitor milk collection and distribution.
  • Improved inventory accuracy and process tracking through automated logs.
  • Provided role-specific dashboards for field staff, admins, and cooperative leaders.

Education

  • Bachelor of Computer Science, Major in Information Systems

    University of Jember (June 2015 – June 2019)

  • Backend Engineer Bootcamp

    Binar Academy (Sept 2022)