Margus Havik

Software Architect

• Project Highlights:Network Traffic Analysis Tool: Developed a tool to analyze and monitor network traffic for improved insights and security.
  Automated Receipt/Bill Digitization: Implemented an OCR-based solution using Nanonets to digitize receipts and bills automatically, enhancing data accuracy and processing speed.
  Fintech Startup Development: Contributed to the architecture and development of a scalable, secure system for a fintech startup.
  
• Technical Stack:Front-End: React, TypeScript
  Back-End: Node.js, Java (Spring MVC), Golang with gRPC, DynamoDB
  Cloud & Messaging Services: AWS Lambda, SQS Queues
  
• Responsibilities & Achievements:Collaborated with clients to analyze requirements and design tailored software architectures.
  Designed and implemented a distributed system that was scalable, secure, and fault-tolerant, meeting high reliability and performance standards.
  

Overview: Twilio's scalable identity services.

Technologies: Java, Python, PHP, TypeScript, React, MySQL.

Key Contributions:

• Software Development: Developed, tested, and maintained high-performance identity service applications using Java and other core technologies.
• User Interface Design: Designed and implemented intuitive, responsive user interfaces for web applications with React and TypeScript.
• Mentorship & Support: Provided technical guidance and debugging support to junior developers, enhancing team productivity and code quality.

Custom Software Development

• Front-End Technologies: React, Angular, GraphQL/Relay, MobX, RxJS, TypeScript/JavaScript
• Back-End Technologies: Node.js, Java, Golang
• Databases: PostgreSQL, MySQL, Percona, MariaDB
• DevOps & Containerization: Docker, Docker Swarm, Kubernetes

Key Contributions:

• Developed full-stack applications with modern front-end frameworks and robust back-end solutions.
• Built user-centric applications with HTML, CSS, and JavaScript, ensuring high responsiveness and usability across platforms.

• Product Development: Built and released plugin-based products for Eclipse and IntelliJ IDEA, enhancing IDE functionality and user productivity.
• Technical Design & Architecture: Developed comprehensive technical specifications and designed robust software architectures to meet application requirements.

Technical Skills:

• Frameworks & Libraries: Extensive experience with Spring MVC, Spring Boot, Hibernate, and Struts for developing scalable Java applications.
• Version Control: Proficient with Git, SVN, CVS, and Mercurial.
• Databases: Skilled in MySQL and Oracle; expertise in evolutionary database design with Liquibase.
• Build & Dependency Management: Hands-on experience with Maven, Ant, and Gradle.
• Testing Frameworks: Experienced with Mockito and JUnit for unit and integration testing.
• Front-End Development: Strong skills in AngularJS, JavaScript, Bootstrap, HTML, CSS and Integrating with backends with Rest API-s.

Experience Highlights:

• Developed and deployed Java applications leveraging Spring MVC, Hibernate, and Struts, focusing on maintainability and scalability.
• Designed and implemented user interfaces with HTML, CSS, JavaScript, and AJAX, ensuring responsive and accessible web experiences.
• Delivered solutions for prominent clients, including Sony Mobile and TeliaSonera.

Company Overview: Oracle Utilities Development

Technical Design & Development:

• Oracle Utilities: Experience with EIP, load profiling, and settlement configuration.
• Rules & Scripting: Proficient in Oracle Utilities Rules Language for custom rule implementations.
• Database Development: Designed schemas, wrote SQL and PL/SQL procedures, and optimized Oracle database performance.
• Programming Languages: Java for additional application functionality.

Key Client: NPower UK