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Rio Fernando

@riofernando

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Backend developer with 5 years’ experience building production APIs and integrations using Python and Golang.

Indonesia

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What I'm looking for

I want to keep developing as a Back End Developer, take ownership of API and integration work that ships to production, and contribute my best in a team that values clear requirements, collaboration, and continuous improvement.

I have experience as a Developer for 5 years, and I’m focused on building backend logic that goes straight into production, including integrating third-party services.

As a Back End Developer, I develop and maintain APIs and backend flows using Python and Golang, working with Agile/Scrum to analyze upcoming requirements, break down tasks, and deliver reliable integration logic with supporting tooling like FastAPI, Django Rest Framework, Go-Fiber, and PostgreSQL on GCP.

Across projects, I’ve strengthened systems using Go, PHP, and NodeJs—fixing bugs in multiple environments, creating message services, building CMS APIs, handling integrations (including crypto payment), and adding unit tests and automated update features while supporting multi-website needs.

I’m committed to growing my skills and contributing my best to the company, and my background in Computer Science (including an ID3-based classification project) helps me stay structured, analytical, and solution-driven.

Experience

Work history, roles, and key accomplishments

Current

Mid Back End Developer

Current

PT Jaya Agung Teknologi

Oct 2023 - Present (2 years 8 months)

Developed and integrated third-party functionality into production systems, building backend logic and analyzing upcoming requirements for task breakdown. Collaborated with back end, front end, DevOps, and project leadership while working under Agile/Scrum.

Python Golang fastAPI Django REST Framework RabbitMQ PostgreSQL Google Cloud Platform (GCP)Docker Agile Scrum

Senior BackEnd Developer

PT GoldenArrow Solution

Jul 2023 - Aug 2023 (1 month)

Integrated third-party services into an existing system and built backend logic and UI components to support the integration. Worked with Project Manager stakeholders using a Waterfall workflow.

Python EJS Waterfall

BackEnd Developer

PT OktagonGlobal Utama

Aug 2022 - Jun 2023 (10 months)

Delivered production releases by integrating third-party services, creating message-service APIs, and developing CMS APIs. Improved reliability via unit tests, refactoring for multi-website support, concurrency fixes, and crypto payment integration.

Go Laravel NestJS PostgreSQL Redis Google Cloud Platform (GCP)Apache Kafka Cloud Firestore

WebDeveloper

Cibadak Indah Sari Farm

Nov 2020 - May 2022 (1 year 6 months)

Increased system efficiency by analyzing user needs and delivering bug fixes and new features across multiple business divisions. Built dashboards and reporting views using web technologies and database queries for procurement, finance, production, human resources, and veterinary modules.

PHP JavaScript AJAX HTML CSS HighCharts MySQL Microsoft SQL Server CURL FTP

Developer and Teacher

PT Nusabot Inovasi Teknologi

Feb 2019 - Aug 2019 (6 months)

Taught programming and robotics fundamentals and contributed to building company technical assets including 3D models for robotic products. Created an automated attendance system in collaboration with HR and finance stakeholders.

PHP Arduino Automated Attendance System 3D Modeling PhoneGap

Education

Degrees, certifications, and relevant coursework

Hainan Normal University

Undergraduate Degree, Chinese Language

2019 - 2020

Grade: A+

Activities and societies: Pass through Intermediate level; Pass through HSK 4.

Studied Chinese Language at Hainan Normal University (2019–2020). Completed intermediate level coursework and passed HSK 4 with a grade of A+.

CICUniversity

Bachelor of Computer Science, Computer Science

2014 - 2018

Grade: 3.85/4

Activities and societies: Implementation Classification for Predicting Student’s National Exam Succession in BPK Penabur Senior High School Using ID3 Algorithm.

Completed a Bachelor of Computer Science at CICUniversity (2014–2018) with a GPA of 3.85/4. Implemented an ID3 algorithm classification project for predicting students’ national exam succession outcomes at BPK Penabur Senior High School.