Denny Rezky Sinulingga

Experience

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  Bangkit Academy led by Google, Tokopedia, Gojek, & Traveloka

  Feb 2021 - Jul 2021

  Cloud Computing

  As DevOps Engineer, my task in Capstone/Final Project is:- Deploy the machine learning model into the AI Platform services.- Deploy the serverless apps into Cloud Functions services.- Deploy the web apps into App Engine services.- Ensure the other members have the rights permissions to GCP Project based on their roles.- Manages the Cloud Bucket to store all objects related to our works.

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  Otten Coffee

  Sept 2021 - Jan 2023

  Backend Developer

  Uses Java, ZK Framework, MariaDB, Eclipse, DBEaver, Gitlab, and Jaspersoft Studio as my tech stack to support development and maintenance.I was involved in developments of the Point Of Sale (POS) & Enterprise Resource Programming (EPR) systems.

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  Ruangguru

  Feb 2022 - Jul 2022

  Backend Engineering Bootcamp

  Backend Engineering Bootcamp is a program from Ruangguru collaborating with Kampus Merdeka programs from the Ministry of Education, Culture, Research, and Technology. The student will learn software engineering, especially about Backend.

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  Wedocation

  Feb 2022 - Aug 2022

  Apprentice Back-End Engineer (Intern)

  Uses Golang, Gin, gRPC, PostgreSQL, and Github as my tech stack to support the development of Learning Management Systems (LMS) services.

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  OttoDigital Group

  Jan 2023 - now

  Backend Engineer

  I am involved in the development of product loyalty and rewards systems, focusing on building B2B/SaaS microservice APIs in the following key areas:- Earning:Build and manage the earning services that used by partners. Processing 140,000+ transactions daily while running on minimal resources (memory 500 MiB).Tech Stack: Golang, Kafka, Cloud Task (GCP), Redis, PostgresSQL, Docker- Reconciliation (Recon)Developed scheduled services that pull data from BigQuery, generate reconciliation files, store them in GCS, and transmit the files to partners via SFTP.Tech Stack: Golang, BigQuery, GCS, SFTP, Docker- TieringBuild and manage a dynamic tiering system to calculate customer levels per partner. Tier configurations are managed via a back-office UI, and level calculation is triggered automatically on each transaction.Tech Stack: Golang, PostgresSQL, Kafka, Docker- Improvement, and Refactoring:* Developed a centralized configuration module used across multiple services in the same environment. Replaced a legacy library that required restarting services when configuration changed.The key improvement: services no longer require a restart when configuration changes, reducing downtime and preventing disruption during live transaction processing.* Refactored IAM services into a new, modular code architecture to improve maintainability and scalability. The previous codebase made it difficult to add new features or debug APIs efficiently.I have extensive experience handling API integrations between external and internal partners, and I support all phases, including SIT, UAT, and post-deployment production. Show less