# Heeirun Jayakumar > Senior Software Engineer @ Topline Pro Location: Greater Boston, United States Profile: https://flows.cv/heeirun I am an enthusiastic Senior Software Engineer with passion for building great products and scalable platforms. I have experience in both Platform and Product Engineering which allow me to solve a wide range of complex problems across the stack. As a natural problem solver, I believe that a growth mindset and the ability to not only learn but share knowledge is the key to solving problems of the future. ## Work Experience ### Senior Software Engineer @ Topline Pro Jan 2026 – Present | Boston, Massachusetts, United States ### Senior Software Engineer @ LinkSquares Jan 2024 – Jan 2026 | Boston, Massachusetts, United States • Platform handles secure storage, access and AI processing of legal agreements using Ruby on Rails, Python, Node and React • Ideation, technical design and implementation of a new platforms (CRM, Audit Logs) to fulfill dynamic product and platform requirements • Collaborated with Sr Staff Engineers and Sr Architect on org wide standards and enablement work (app/api/gem generators, client gems) saving multiple sprints worth of work across the entire engineering organization. ### Software Engineer II @ LinkSquares Jan 2022 – Jan 2024 | Boston, Massachusetts, United States • Scaled party domain to alleviate bottleneck on monolith by extracting the domain into its own microservice. • Lead API standardisation effort across multiple surfaces (web/public/salesforce API). Lead multiple spikes to discover unknowns which resulted in better prioritization and scope of subsequent tickets resulting in time saved. • Identified and fixed rogue sidekiq processes that lose in progress jobs saving ~64 hours of developer time in a month ### Software Engineer I @ LinkSquares Jan 2021 – Jan 2022 • Designed and engineered a customizable state machine for agreement states as part of a multi-quarter effort. Worked on data modeling, data migration, external API integrations(DocuSign, Adobe Sign), email notifications and activity logging • Built tooltips feature for AI-powered insights to reduce interaction between customers and their success manager. • Engineered user activity logs CSV export feature for privileged users to add visibility to user activity on an agreement. • Added Service Object tracing and log correlation to add granularity for tracing Service Object calls on Datadog. • Took ownership over code reviews, tech debt audits, product release management, process engineering and large epics. ### Software Engineer @ EatStreet Jan 2020 – Jan 2021 | Madison, Wisconsin, United States • Reengineered driver pickup and drop-off flow to support order volume growth and non-contact delivery for COVID-19 safety using Ruby on Rails and Angular + Ionic. Designed and engineered a secure ID and Signature Upload feature as part of the larger Alcohol Delivery project. • Optimized and repurposed existing driver scheduling endpoints to reduce server load with Pusher. Managed Driver App releases, Delivery Infrastructure deployments to production, technical debt audits, backlog reviews and code reviews. • Took ownership over code and deployment processes resulting in a promotion from an associate position in 5 months. ### Software Engineering Intern @ EatStreet Jan 2020 – Jan 2020 | Madison, Wisconsin Area • Led design, development and deployment of the new driver on-boarding app written in Angular 8 with CircleCI integration. Deployed to a S3 bucket integrated with Cloudfront for performance and Route 53 for DNS routing. • Fixed multiple flaky CircleCI unit test which increased productivity and production build success rate by 30%. ### Software Engineering Intern @ Schneider Jan 2019 – Jan 2019 | Green Bay, Wisconsin • Lead migration, design, development and deployment of a full stack web application built using React and Node to crowdsource innovative ideas internally within Schneider. Engineered the Node backend, connected it to an internal MS SQL Server database, integrated the frontend and backend codebases and deployed the web app to an internal Docker server. • Developed a chat bot using the Azure Bot Framework to automate level 1 IT support with functionality to create support tickets through the bot and send support tickets automatically using email. • Engineered a virtual voice assistant using Dialogflow, Web Speech API and Socket.io to increase driver satisfaction and productivity by 20%. • Experimented with emerging technologies such as Computer Vision and AR to disrupt the logistics industry. • Delved deeper into efficient software design, development and deployment on top of learning to lead an engineering team and managing stakeholders on the product side of the projects. ### Software Engineering Intern @ QBE North America Jan 2019 – Jan 2019 | Sun Praire, Wisconsin Developing innovative software solutions to real world problems in the Insuretech industry. • Lead design, development and deployment of an end to end data pipeline for collection and visualization of a chat bot data using Python scripts, Azure Tables, Azure Logic Apps, Docker and Power BI. • Engineered asynchronous Node production code and chat bot logic as part of the Azure Bot Framework. • Deployed Azure Web Apps and integrated them with Azure Cognitive Services such as LUIS and QnA Maker to implement Natural Language Processing(NLP) functionality. • Supported a telematics web app by designing error messages on the Vue front end and mocked up a Flask Python back app back for testing. • Developed a solid understanding of Azure Cloud Services, Docker, Git, Agile(Scrum) and their best practices. ### Participant @ Sigfox Hacking House Jan 2018 – Jan 2018 | Fremont, California Implementing Sigfox technology to solve real-world problems • Collaborated with a diverse team to implement an IoT use case to predict and prevent forest fires from happening. This was done using low-cost sensors and Sigfox LPWAN to come up with a cost-effective and feasible solution. • Contributed to data cleaning with Numpy, Pandas and embedded systems programming in C. ### Software Engineer @ VisualEyes Jan 2018 – Jan 2018 | Madison, Wisconsin Area Using AR technology to bring the world around us to life • Created an Augmented Reality (AR) start-up with four other friends which focuses interactive display of information in the AR space. • Engineered the MongoDB database with the use of Mongoose models as part of a MEAN stack and helped integrate it with Azure, improving efficiency of queries by 60%. ### Student Web Developer @ University of Wisconsin Sea Grant/Water Resources Institutes Jan 2018 – Jan 2018 | Madison, Wisconsin Area • Lead the development of new PHP based plugins for the website eatwisconsinfish.org in addition to the regular maintenance of the website. • Used previous knowledge on web scraping to help scrape and migrate 300+ articles and post from the old UW-Madison Sea Grant archives. ### IoT Technical Intern @ Xperanti IoT Jan 2017 – Jan 2017 | Kuala Lumpur, Malaysia ## Education ### Computer Science University of Wisconsin-Madison Jan 2017 – Jan 2020 ### American Degree Transfer Program (ADP) in Computer Science Taylor's University Jan 2016 – Jan 2017 ### SPM in Science Stream SMK Subang Utama Jan 2011 – Jan 2015 ## Contact & Social - LinkedIn: https://linkedin.com/in/heeirun - GitHub: https://github.com/Heeirun --- Source: https://flows.cv/heeirun JSON Resume: https://flows.cv/heeirun/resume.json Last updated: 2026-03-22