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Hello, I'm Calvin, and I'm excited to apply for your backend development role. My five years of experience in backend development, with a strong focus on Golang and Java, aligns perfectly with the opportunity to contribute to your team's innovative projects. I've built a deep understanding of backend systems and architecture throughout my career, consistently prioritizing scalable and efficient solutions. I'm particularly adept at designing and implementing high-performance RESTful APIs using Golang and Java, which has been key to delivering robust applications.…Hello, I'm Calvin, and I'm excited to apply for your backend development role. My five years of experience in backend development, with a strong focus on Golang and Java, aligns perfectly with the opportunity to contribute to your team's innovative projects. I've built a deep understanding of backend systems and architecture throughout my career, consistently prioritizing scalable and efficient solutions. I'm particularly adept at designing and implementing high-performance RESTful APIs using Golang and Java, which has been key to delivering robust applications.

Calvin Fadhil Mahendra

Back-End Developer, Web Developer, Full Stack Developer, +2

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Hello, I'm Calvin, and I'm excited to apply for your backend development role. My five years of experience in backend development, with a strong focus on Golang and Java, aligns perfectly with the opportunity to contribute to your team's innovative projects. I've built a deep understanding of backend systems and architecture throughout my career, consistently prioritizing scalable and efficient solutions. I'm particularly adept at designing and implementing high-performance RESTful APIs using Golang and Java, which has been key to delivering robust applications.…Hello, I'm Calvin, and I'm excited to apply for your backend development role. My five years of experience in backend development, with a strong focus on Golang and Java, aligns perfectly with the opportunity to contribute to your team's innovative projects. I've built a deep understanding of backend systems and architecture throughout my career, consistently prioritizing scalable and efficient solutions. I'm particularly adept at designing and implementing high-performance RESTful APIs using Golang and Java, which has been key to delivering robust applications.

Available to hire

Hello,
I’m Calvin, and I’m excited to apply for your backend development role.
My five years of experience in backend development, with a strong focus on Golang and Java, aligns perfectly with the opportunity to contribute to your team’s innovative projects. I’ve built a deep understanding of backend systems and architecture throughout my career, consistently prioritizing scalable and efficient solutions. I’m particularly adept at designing and implementing high-performance RESTful APIs using Golang and Java, which has been key to delivering robust applications.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Indonesian

Fluent

English

Advanced

Work Experience

Backend Engineer at PT Brick Teknologi Indonesia

June 1, 2022 - Present

Developed and maintained scalable backend services using Golang and Java. Optimized database performance with MySQL and PostgreSQL queries; implemented Redis caching to reduce latency. Collaborated in Agile teams to deliver features for internal and payment infrastructure (app.onebrick.io), including Disbursement, Virtual Accounts, QRIS, and E-Wallet transactions. Designed and maintained API for money transfer and payments via dashboard/API.

Backend Engineer at PT Ocean Innovation Tech

August 1, 2021 - May 31, 2022

Developed high-performance APIs and microservices in Golang. Designed and optimized database queries for MySQL and PostgreSQL. Implemented Kafka message brokers and Redis caching to enhance system performance. Connected banking applications with third-party payment services and built fraud detection APIs using Kafka and MySQL. Built a promotion management system with Redis caching and MySQL for efficiency.

Backend API Developer at PT Pupuk Sriwidjaja

March 1, 2021 - August 31, 2021

Developed backend services in Golang (Echo Framework) for warehouse digitalization. Built MySQL database schemas and optimized queries for stock management. Collaborated with stakeholders to ensure the system met operational needs. Developed an application for warehouse management, stock-in/out, and stock opname using Golang & PostgreSQL.

Software Engineer at CV Digital Creative

December 1, 2019 - June 30, 2021

Designed and implemented backend services using Golang and PHP. Developed database functions and views in PostgreSQL and MySQL. Worked in an Agile team, improving software development workflows. Built a registration and scheduling system for certification tests (Golang, PostgreSQL). Developed an inventory and construction project management system using Golang. Created APIs for a ride-hailing app, using PHP Slim and MySQL.

Backend API Developer at PT Pupuk Sriwidjaja (Internship, Remote)

August 1, 2020 - February 28, 2021

Built RESTful APIs using Golang and optimized PostgreSQL queries. Developed the E-POK System, an order request management platform. Automated work order submission for the RBP Department. Developed APIs using Golang and PostgreSQL.

Backend API Developer at PT Difio Persada (Internship, On Site)

December 1, 2019 - January 31, 2020

Built and maintained backend services using PHP Slim framework. Developed efficient MySQL queries for performance. Created a digital repository system for students and lecturers to upload research papers. Implemented PHP & MySQL for backend infrastructure.