# Kirs Imsong

> Fullstack Senior Software Engineer

Location: Cambridge, Massachusetts, United States
Profile: https://flows.cv/kirs

Senior full-stack engineer and tech lead with 6+ years delivering customer-facing and internal platforms end-to-end, specializing in scalable web systems, API design, and cross-team execution.

## Work Experience
### Senior Software Engineer @ Justworks
Jan 2024 – Present | New York, New York, United States
Building software for the Benefits Team which is responsible for accelerating the growth of the core business by building and running a new, hyper flexible benefits platform that will serve as the launch pad for multiple new products, services, and partnerships.

### Senior Software Engineer @ Sofar Sounds
Jan 2021 – Jan 2023 | Cambridge, Massachusetts, United States
• Led a project to migrate the Sofar Sounds React client app to the ViteJS framework, reducing local development startup time from 2 minutes to 2 seconds, enhancing developer workflow and efficiency.	
• Integrated a $2 million Visa partnership experience into the platform, offering exclusive benefits for Visa cardholders. Utilized React, TypeScript, Ruby on Rails, and GraphQL technologies.
• Developed a JavaScript AB Testing framework enabling random variant assignment and automatic reporting, allowing statistically significant measurement of new feature impacts on key metrics.

### Co-Founder @ Speedrun Bounties
Jan 2020 – Jan 2022 | Cambridge, Massachusetts, United States
• Founder of a web platform to allow users to create, discover and participate in speedrunning challenges for crowdsourced cash prizes.
• Led a team of 5 developers through the design, implementation, and testing of the Node.js backend service, React frontend app, and GraphQL middleware to deliver speedrunbounties.gg.

### Senior Software Engineer @ Vistaprint
Jan 2021 – Jan 2021 | Waltham, Massachusetts, United States
• Designed system architecture, established NodeJS microservices, and developed React frontends for the Studio Icons feature, increasing checkout conversion among half a million users.
• Conducted a 6-week React and TypeScript training program for 30 software engineers, involving weekly sessions, assignments, activities, quizzes, and discussions.
• Implemented Web Application Firewalls (WAFs) in front of AWS application load balancers, securing public-facing microservices and safeguarding against malicious requests.

### Software Engineer @ Vistaprint
Jan 2019 – Jan 2021 | Waltham, Massachusetts, United States
• Built React frontend and backend .NET Core microservices for a global Vistaprint web experience update, replacing the existing monolithic platform.
• Enhanced Vistaprint Design Studio load time performance by 40% by developing a Node.js microservice to centralize initialization logic, reducing TCP connections.
• Launch React frontends and backend .Net Core microservices in several countries (Australia, Spain, Portugal, and more) for global Vistaprint experience update to replace the monolith platform.

### Technical Product Manager @ University of Massachusetts Amherst
Jan 2018 – Jan 2019 | Amherst, Massachusetts, United States
• Lead development of the Campus Access navigation mobile app through, ideation, design, development, and testing in preparation for Alpha Release.
• Secured $50,000 in funding for the project by working with stakeholders to define the product and technology strategy.
• Engage in rapid development cycles and continuous delivery with internal testers to ensure accessibility for a diverse set of users.

### Software Engineer Intern @ Cisco
Jan 2018 – Jan 2018 | San Jose, California, United States
•  Developed using Python and deployed in Linux Docker containers with focus on test-driven development.
•  Improved speed and reliability of an internal logging system by porting it from Python 2.7 to Python 3.7.
•  Contributed to the back-end media streaming system for the Cisco Webex Teams collaboration application

### Software Engineer Intern @ Optum
Jan 2017 – Jan 2017 | Boston, Massachusetts, United States
• Built an interactive data analysis web-applications to query over 2 billion rows of claims data for analysts.
• Utilized Scala, Hive, Spark, Hadoop, and Elasticsearch to ingest, enrich, and present data in a web app.
• Lead an Agile team of nine developers as Scrum Master while also maintaining a developer role.

### Kirs and a Camera @ YouTube
Jan 2016 – Jan 2017 | Nagaland, India
I run my own personal Youtube channel called "Kirs and a Camera" with over a million channel views in which I post my films to a growing audience of over 6,000 subscribers.


## Education
### Bachelor’s Degree in Computer Science
University of Massachusetts Amherst
Jan 2015 – Jan 2019


## Contact & Social
- LinkedIn: https://linkedin.com/in/kirs-imsong
- Website: https://www.youtube.com/channel/UCeYZo-ZcDLDi468I9lBwIuw
- Website: https://kirsimsong.com

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Source: https://flows.cv/kirs
JSON Resume: https://flows.cv/kirs/resume.json
Last updated: 2026-03-22