Senior Engineering Manager
2021 - PRESENTBukalapak- Reorganized team to have a higher velocity to meet business expectations with fewer quality defects.
- Introduced Flutter to the apps engineers to start importing inside the native apps.
- Moved some of the legacy front end from Vue to React.
Technologies: React, Ruby, Java, SQL, PostgreSQL, Go, Apache Kafka, FlutterEngineering Manager
2020 - 2021tiket.com- Proposed and led architectural changes that fit new product requirements while balancing scalability, cost, and development velocity.
- Managed the engineering team and coordinated marketing, business, and other stakeholders to release new products in a timely manner.
- Mentored team members and suggested codebase improvements to reduce technical debts.
Technologies: React, Jest, SonarQube, Java, Reactor, Spring, Redis, Engineering Management, Node.js, MongoDB, SQL, MongoDB Atlas, Git, OS X, Visual Studio Code (VS Code), JavaScript, RxJS, PHP, MySQLSenior Software Engineer
2018 - 2020Forage- Architected a database infrastructure using zone-based sharding in MongoDB while maintaining application performance.
- Led a front-end migration from a legacy framework to React with design systems using Storybook.
- Built a data pipeline and ETL for analytics, using AWS Glue to make it queryable in Tableau for self-service business intelligence.
- Established and grew the engineering function from two interns to two teams.
Technologies: JavaScript, Meteor, Node.js, React, Lambda Architecture, Content Delivery Networks (CDN), MongoDB Atlas, AWS Lambda, Data Pipelines, MongoDB, Sharding, ETL, AWS Glue, Engineering Management, WebSockets, SQL, Git, OS X, Visual Studio Code (VS Code), RxJS, A/B Testing, Email Systems, MySQLSoftware Engineer | Team Lead
2017 - 2018Online Freelance Company- Integrated and improved the internal A/B testing framework and used it heavily for new feature releases.
- Created SEO pages and managed technical ad targeting.
- Managed the email system to maintain a high send rate and low bounce rate and improved the email tracking system.
Technologies: Angular, TypeScript, AngularJS, PHP, Go, Redis, Elasticsearch, A/B Testing, Email Systems, Node.js, WebSockets, SQL, MongoDB Atlas, Git, OS X, Visual Studio Code (VS Code), JavaScript, RxJS, MongoDB, MySQLSoftware Engineer
2016 - 2017Approach Solutions- Developed an ERP solution using SAP HANA, SAPUI5, and OData.
- Implemented a data management system for historical data.
- Assisted with user onboarding and troubleshot user issues.
Technologies: SAP HANA, SAPUI5, OData, Enterprise Resource Planning (ERP), Git, OS X, Visual Studio Code (VS Code), JavaScriptBusiness Operations Technical Graduate
2016 - 2016IBM- Moved and rebuilt the data center for internal IBM development labs.
- Created and operated a server backup strategy using tape libraries for short-term and long-term storage.
- Developed the initial version of a self-service system to spin up virtual infrastructure on-demand.
Technologies: Cloud, Data Center Migration, BladeCenter H, SQL, Git, OS X, Visual Studio Code (VS Code)
Julius Arden
Front-end Developer in Sydney, New South Wales, Australia
Member since July 23, 2021
Julius is a front-end-biased software engineer and engineering manager with 5+ years of professional experience. He has worked in multiple sectors, including marketplace, edtech, and fintech, and in companies ranging from startups to multinationals. Julius leverages his varied experience to remain flexible and pragmatic while delivering and maintaining clean code.
Julius is now available for hire
Availability
Part-time
Preferred Environment
Git, OS X, Visual Studio Code (VS Code)
The most amazing...
...thing I've developed was a flexible querying system that allowed users to submit self-service queries in a sharded MongoDB cluster.
Employment
Experience
- Data Sharding Within One Clusterhttp://www.theforage.com
The back-end system of Forage allows data to be regionally stored while also supporting querying across regions. I led the creation of this system, which uses MongoDB Atlas while maintaining app performance by adding cache and a broadcast layer in Redis and reducing unnecessary WebSocket events with Meteor. The system can handle 10,000+ live WebSocket connections with 300,000+ monthly active users. It is also GDPR-compliant without the need to export user information to different regions.
- Full-stack MERN React/Node.js Engineering Leadhttps://spotpetins.ca/
A pet insurance company launching its new product. I was initially hired as React developer to create the design system and initial pages but was involved in creating and managing the CI/CD. Due to resourcing issue in the back-end development (Node.js/TypeScript), I was moved to lead the back-end development as well.
Skills
Languages
JavaScript, SQL, TypeScript, PHP, VHDL, Java, Go, GraphQL, RubyLibraries/APIs
React, Node.js, RxJS, REST APIs, ReactorTools
Git, MongoDB Atlas, SonarQube, SAPUI5, AWS GluePlatforms
OS X, Visual Studio Code (VS Code), Meteor, AWS Lambda, Raspberry Pi, SAP HANA, Netlify, Contentful, Apache KafkaStorage
MySQL, MongoDB, PostgreSQL, Data Pipelines, Redis, ElasticsearchOther
Engineering Management, Sharding, A/B Testing, Email Systems, WebSockets, Indexing, Data Aggregation, Machine Learning, Data Warehousing, FPGA, Microcontrollers, Content Delivery Networks (CDN), OData, Enterprise Resource Planning (ERP), Programming, Cloud, Data Center Migration, BladeCenter H, GatsbyFrameworks
Angular, Redux, AngularJS, Flutter, Jest, Spring, .NET 4, ASP.NET MVC, ADO.NET, Next.jsParadigms
Lambda Architecture, ETL, REST, Jamstack
Education
- Bachelor's Degree in Computer Engineering2012 - 2015University of New South Wales - Sydney, Australia
- Diploma of IT in Programming in Information Technology2010 - 2011Sydney Institute TAFE - Sydney, Australia
