Johannes Waruhu

Actively contribute to the IT Development Digital team at PT Bank Hibank Indonesia, focusing on enhancing digital banking solutions to improve customer experience and operational efficiency.

Project Involvement:

• Corporate Website: Played a key role in the development and optimization of Hibank's corporate website, ensuring user-friendly navigation and integration of essential banking features.
• Mobile Banking Application: Involved in the design and implementation of the mobile banking app, enhancing user engagement and streamlining banking processes for customers on-the-go.
• Back Office Mobile Banking: Collaborated on the development of the Back Office Mobile Banking to improve internal processes and support efficient management of banking operations.

Tech Stack: Java Spring Boot, Laravel, Go, Jenkins, ArgoCD, Kubernetes, PostgreSQL

Company Overview: DELOS is a science-driven aqua-tech company aiming to transform Indonesia's aquaculture.

Project Involvement:

• Designed, developed, and maintained an advanced farm monitoring system that enables users to track and analyze over 100 metrics, providing detailed insights to optimize farm management and productivity.
• Enhanced and optimized the daily upload data monitoring API, successfully reducing the response time from 3 seconds to under 0.5 seconds, thereby significantly improving performance and user experience.
• Mentored teammates by offering guidance and support, conducting thorough code reviews to ensure high-quality standards, and providing dedicated pairing sessions to enhance the skills and confidence of junior-level developers.

Tech Stack : Go, MySQL, Redis, Appsmith, GitHub, Grafana, Redshift, DBT, Airflow, Jira, Confluence.

Company Overview: Shipper is revolutionizing logistics, aiming to lead in e-commerce solutions by simplifying order management & optimizing delivery routes.

Project Involvement:

• Built and maintained Aloshop, an advanced omnichannel platform, where I created MVP features from scratch as an early concepter and ensured robust functionality and a seamless user experience.
• Integrated Tokopedia, Shopee, and Lazada into Aloshop for seamless product management across Indonesia's top marketplaces, enhancing user convenience through a unified platform experience.
• Designed and led the development of OAuth 2.0 authentication and authorization infrastructure for Aloshop, setting the standard for robust security and streamlined user access management.

Tech Stack : Go, GraphQL, MySQL, Redis, Elasticsearch, Bitbucket, Jenkins, Docker, Consul, Datadog, Kafka, Jira, Confluence.

Company Overview: Shipper is revolutionizing logistics, aiming to lead in e-commerce solutions by simplifying order management & optimizing delivery routes.

Project Involvement:

• Developed and maintained Fulfillment Open API, enabling direct client-server communication with shipper servers for enhanced logistical efficiency and client partnership connectivity.
• Developed an MVP application for a Warehouse Management System, responsibilities included understanding the current operational workflow, devising the initial design, and aiding the team in maintaining code quality throughout.
• Integrated existing WMS system with Honeywell Inventory Management and Order Fulfillment system, which involves understanding both system capabilities and interfaces.

Tech Stack : Go, GraphQL, MySQL, PHP, Javascript, Python, Robot Framework, Redis, Elasticsearch, Bitbucket, Jenkins, Docker, Consul, Datadog, Kafka, Jira, Confluence.

Company Overview: Tunaiku is Indonesia's first FinTech to offer online loans without assistance, aiming to become the country's top FinTech.

Project Involvement:

• Elevated the loan application service by adopting clean code principles, refactoring, implementing unit tests, and separating code layers for enhanced robustness and maintainability.
• Managed and monitored APIs for internal users and partners, ensuring smooth operation and performance oversight.
• Integrated partner API into loan application service for automated user input, streamlining processes and achieving a 10x increase in user acquisition rates.

Tech Stack : Go, Node.js, PostgreSQL, Bitbucket, Kibana, Redis, Elasticsearch, Go Pub sub, Jira, Confluence.