Jermaine Toan - Principal Software Engineer

Jermaine Toan

4.9

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Jermaine Toan

4.9

Gender

Male

Main expertise

Java Golang Back-end Cloud DevOps Microservices AWS Google Cloud JavaScript Spring React.js Redis

Introduction

Jermaine Toan is a professional software engineer with over 10 years of industry experience. Currently serving as a Principal Software Engineer, he brings extensive expertise in both backend and frontend development, as well as in DevOps, cloud infrastructure, and system management. Jermaine's diverse skill set enables him to tackle complex projects and lead teams towards achieving effective technology goals. He is proficient in Java and Golang, with a strong understanding of debugging, performance, and problem-solving. Jermaine possesses a comprehensive knowledge of software engineering principles, including code reviews, code quality, monitoring, multithreading, and memory management. He has substantial experience in the various roles within a product's life cycle, from DevOps to frontend and backend development. His programming experience includes a thorough understanding of the full software development life cycle. Jermaine is well-versed in microservices architecture and distributed systems, boasting skills in RESTful, GRPC, Kafka, Redis, ELK, MongoDB, and more. He excels in designing scalable and high-performance systems and is familiar with Linux development environments, multithreaded programming, common network protocols, core algorithms, and data structures. With experience in both Agile and Waterfall methodologies, Jermaine is adept at researching and adapting to modern technologies. Open-minded and eager to learn, he is always willing to explore new challenges.

Project list

Project Cost Management

Project cost management involves planning, estimating, budgeting, and controlling costs throughout the lifecycle of a project. This includes estimating the total costs required to complete the project, covering labor, materials, equipment, and other expenses. Budgeting is done by allocating the overall cost estimate to individual work items to establish a performance baseline. Cost control involves monitoring project expenses and implementing measures to keep costs within the approved budget.

Designing and implementing software solutions to meet business requirements. Leading and mentoring a team of software engineers, providing technical guidance, and fostering a culture of continuous improvement. Collaborating with stakeholders to define software requirements and ensure alignment with overall business goals. Establishing technical standards for developing and testing software to maintain quality and consistency. Overseeing the technical aspects of projects to ensure they are completed on time and within budget. Analyzing data and solving software-related issues and complaints. Optimizing and maintaining existing software to improve performance and functionality. Recommending new technologies and upgrades to increase productivity and stay ahead of industry trends. Conducting regular code reviews to ensure adherence to best practices and high-quality standards. Providing training and mentorship to junior and entry-level team members. Successfully delivering Project Management product as part of the ERP department in the largest fintech platform in the Japanese market. Designing robust, scalable, and high-availability systems to reduce development costs. Documenting designs in detail and setting up CI/CD with system monitoring. Working closely with the Product Owner to verify feature requirements and provide product advice before engineering begins.

Technologies: Architecture: SOE, Infrastructure: AWS, Programing languages: Golang, Typescript, Frameworks: Gin, Nextjs, Reactjs, Databases: Mysql, Redis, CICD: Github, CircleCI, ArgoCD, Cloud services: SQS, Lambda, EKS, Collaboration software: Jira, Confluence

Marketing Technology Platform (MTP)

The project entails developing a comprehensive Martech platform designed to optimize business marketing strategies. Key functionalities include: - Customer Segmentation: Allows businesses to categorize their customer base by demographics, behavior, and preferences, facilitating targeted marketing and personalized communication. - Campaign Management: Provides tools for planning, executing, and tracking marketing initiatives across channels like email, social media, and search engines, inclusive of campaign scheduling and A/B testing. - Marketing Automation: Streamlines repetitive marketing tasks such as email marketing, lead nurturing, and social media posting, enhancing efficiency and time management. - Analytics and Reporting: Delivers detailed analytics and reporting to evaluate marketing campaign outcomes, offering insights into conversion rates, customer acquisition costs, ROI, and other crucial metrics. - Personalization: Empowers businesses to offer personalized customer experiences through data utilization and automation, including dynamic content, recommendation engines, and tailored messaging.

End-to-end delivery of business features, from gathering requirements, designing solutions to implementing and testing outcomes. As a Principal Software Engineer, I joined this product from its inception. I was involved in designing and developing key features and overseeing all aspects of the development lifecycle. Mentor and coach other team members to enhance their performance. Design system architecture and determine technology stack, including programming languages, frameworks, and databases. Propose solutions and develop proofs of concept. Hands-on feature implementation and code review. Set up CI/CD pipelines, deploy and monitor in a production environment. Take responsibility for production issues and provide on-call support.

Technologies: Architecture: Microservices, Infrastructure: Google Cloud Platform, Programing languages: Java, Golang, Javascript, Typescript, Frameworks: Spring, Gin, SocketIO, Nextjs, Reactjs, Databases: Mysql, Mongodb, Redis, Bigquery, Bigtable, CICD: Gitlab, Stack Driver, Google cloud tracing, Splunk, Cloud services: Pubsub, Cloud Task, Cloud Run, Kafka, Cloud function, Flink, Google Dataflow, Firestore, Firebase, Collaboration software: Jira, Confluence

AYOCONNECT

A platform offering a variety of fintech services such as payment processing, digital wallets, lending and borrowing, investment management, and financial analytics. These services are accessible through APIs, allowing businesses to seamlessly integrate them into their systems or applications. The platform enables businesses to quickly adopt and customize fintech services to meet their specific needs, reducing the need for significant upfront investments or long development cycles. This allows companies to focus on their core competencies while leveraging the expertise and infrastructure of the Fintech as a Service platform.

End-to-end delivery of business features, from gathering requirements, designing solutions to implementing and testing outcomes. Mentor and coach other team members to perform fully in their roles. Design system architecture and decide the tech stack, including programming languages, frameworks, and databases. Propose solutions and develop proofs of concept. Hands-on feature implementation and code review. Set up CI/CD, and manage deployment and monitoring in the production environment. Responsible for production issues and provide on-call support.

Technologies: Architecture: Microservices, Infrastructure: Google Cloud Platform, Programing languages: Golang, Typescript, Frameworks: Gin, Nextjs, Reactjs, Databases: Mysql, Redis, Bigquery, CICD: Bitbucket, Stack Driver, Google cloud tracing, Cloud services: Pubsub, Cloud Task, Cloud Run, Firebase, Collaboration software: Jira, Confluence

Bright Insight

Bright Insight provides a leading global platform tailored for biopharma and medtech regulated digital health solutions. The platform connects with various medical devices, like wearable sensors, remote monitoring tools, imaging equipment, and diagnostic instruments, to gather and analyze patient data effectively. Leveraging advanced data analytics and artificial intelligence, it offers valuable insights, recognizes patterns, and supports clinical decision-making through techniques such as predictive analytics, machine learning algorithms, and data visualization. The platform also includes clinical decision support features, providing healthcare professionals with evidence-based guidelines and decision tools for diagnosis, treatment planning, and patient monitoring. Additionally, it enables remote monitoring of patients' vital signs and health conditions, helping providers track progress and address early warning signs promptly. The secure and interoperable Electronic Health Records (EHR) system within Bright Insight allows seamless access and sharing of patient information, covering demographics, medical history, lab results, and medication records.

Medical Device Integration: Integrate with various medical devices, such as wearable sensors, remote monitoring devices, imaging equipment, and diagnostic tools, to collect and analyze patient data. Data Analytics and Artificial Intelligence: Utilize data analytics and artificial intelligence (AI) techniques to derive insights from patient data, identify patterns, and support clinical decision-making. This can include predictive analytics, machine learning algorithms, and data visualization tools. Clinical Decision Support: Provide healthcare professionals with evidence-based guidelines, treatment protocols, and decision support tools to assist in diagnosis, treatment planning, and monitoring of patients. Remote Patient Monitoring: Enable remote monitoring of patients' vital signs, symptoms, and health conditions. This allows healthcare providers to track patient progress, detect early warning signs, and intervene when necessary. Electronic Health Records (EHR): Offer a secure and interoperable EHR system that allows healthcare providers to access and share patient information seamlessly. This includes features such as patient demographics, medical history, lab results, and medication records.

Technologies: Infrastructure: Google Cloud Platform, Programing languages: Java, Typescript, Frameworks: Spring, Angular, Databases: Mysql, Spanner, Bigquery, CICD: Gitlab, Stack Driver, Google cloud tracing, Datadog, Cloud services: Pubsub, Cloud Task, Cloud Run, Google Dataflow, Collaboration software: Jira, Confluence, Architecture: Microservices

EAZY

Developing a social platform tailored for the Japanese market, encompassing various essential features.

Messaging: Provide a messaging feature that allows users to send text messages, voice messages, and multimedia content to their contacts. Support for stickers and emojis, which are popular in Japanese messaging apps, can also be included. Group Chats: Enable users to create and participate in group chats with multiple contacts. This feature is particularly important for social platforms as it allows users to communicate and interact with multiple people simultaneously. Voice and Video Calls: Offer voice and video calling capabilities to allow users to have real-time conversations with their contacts. This feature can be enhanced with additional functionalities such as screen sharing and video filters. Timeline and News Feed: Provide a timeline or news feed where users can share updates, photos, videos, and links with their friends. Users should be able to like, comment, and share posts, fostering engagement and interaction within the platform. Public Accounts: Allow businesses, celebrities, and influencers to create public accounts where they can share content with their followers. Provide features such as verified badges, analytics, and monetization options to support these accounts. Discover and Explore: Include a feature that allows users to discover new contacts, groups, and public accounts based on their interests, location, or mutual connections. This can help users expand their social network and discover relevant content.

Technologies: Architecture: Microservices, Infrastructure: Private cloud, Programing languages: Java, Javascript, Frameworks: Spring, ReactJS, SocketIO, Databases: MongoDB, Redis, ElasticSearch, CICD: Gitlab, ELK stack, Cloud services: RabbitMQ, Collaboration software: Jira, Confluence

Gurunavi Restaurant Platform

Explore and reserve top restaurants in Japan. Users have access to a comprehensive list of local dining establishments, complete with menus, pricing, ratings, and estimated delivery times. Customers can conveniently place orders, customize them with special instructions, and choose from various payment methods. The platform fosters a community by allowing users to rate and review their experiences and helps restaurants enhance their service through data insights. Regular promotions and loyalty programs are available to users.

Restaurant Listings: Users can browse through a list of restaurants available in their area. Each listing typically includes the menu, prices, ratings, and estimated delivery time. Order Placement: Customers can select items from the menu and place an order through the platform. They can customize their order with special instructions if needed. Payment Processing: The platform handles the payment transaction. Users can pay for their orders using various methods such as credit/debit cards, digital wallets, or cash on delivery. Ratings and Reviews: After the delivery, customers can rate and review their experience with both the restaurant's food and the delivery service. Restaurant Partnerships: The platform partners with restaurants to onboard them, manage their presence on the app, and provide them with data insights to improve their offerings. Promotions and Discounts: To attract and retain users, the platform often offers promotions, discounts, and loyalty programs.

Technologies: Architecture: Service Oriented Architect, Infrastructure: Private cloud, Programing languages: Php, Java, Javascript, Frameworks: FuelPhp, Spring, ReactJS, SocketIO, Databases: Mysql, Redis, Cassandra, ElasticSearch, CICD: Gitlab, Cloud services: RabbitMQ, Aws RedShift, Collaboration software: Jira, Confluence

Myanmar Customs Intelligent System (MCIS) - Myanmar

The Myanmar Customs Intelligent System (MCIS) is an advanced platform specifically designed to optimize customs and border control operations in Myanmar. Incorporating cutting-edge technologies, it enhances efficiency and security by streamlining processes such as data management, risk assessment, and cargo tracking.

Customs Data Management: MCIS collects, stores, and manages extensive customs-related data, involving import/export records, tariff information, and regulations. This data is organized for easy access by customs officers and stakeholders. Risk Assessment and Profiling: The system uses intelligent algorithms and machine learning to analyze customs data, identifying potential risks and anomalies. It aids customs officers in prioritizing inspections and targeting high-risk shipments or individuals. Automated Customs Clearance: MCIS automates routine tasks and documentation in the customs clearance process. It enables electronic submission of declarations, automates tariff calculations, and facilitates electronic payment of duties and taxes. Cargo Tracking and Monitoring: The system offers real-time tracking and monitoring of cargo during customs clearance, allowing officers to track goods' movement, verify authenticity, and ensure compliance with regulations. Intelligence and Analytics: By analyzing customs data and patterns, MCIS generates actionable intelligence and insights, helping officers identify trends, detect smuggling activities, and make informed decisions for enhanced border security and revenue collection. Compliance Monitoring and Enforcement: MCIS aids compliance monitoring by providing tools for audits, inspections, and investigations, helping officers identify non-compliant activities, enforce regulations, and deter smuggling and fraud.

Technologies: Architecture: Service oriented, Infrastructure: Private cloud, Programing languages: Java, Frameworks: Spring, Databases: Postgres, CICD: Git, Jenkins, Collaboration software: Jira, Confluence

Project list

Education

Expertise