# Steven Scheffelaar Klots

> Front-End Engineer | React Specialist | Crafting Intuitive & Scalable Web Experiences | Open to Front-End or Full-Stack Opportunities

Location: Greater Boston, United States
Profile: https://flows.cv/stevenscheffelaarklots

Frontend engineer with 7+ years of experience building fast, scalable, and user-focused web applications using React, Next.js, TypeScript, and modern tooling. I specialize in turning complex product requirements into clean, maintainable UI systems — with an emphasis on performance, accessibility, and developer experience.

I’ve designed and shipped production features at scale (Constant Contact, Cisco), and built full-stack projects from scratch using React, Next.js, Node, MongoDB/PostgreSQL, and AWS. I enjoy optimizing build pipelines, improving code quality with tools like NX, CI/CD, ESLint, and contributing to design systems and reusable component architectures.

Always learning — recently focused on backend/API design, deployment workflows, and integrating AI tools into web apps. I love solving real problems with thoughtful engineering and building products people actually want to use.

## Work Experience
### Software Engineer II @ Constant Contact
Jan 2019 – Jan 2023 | Waltham, Massachusetts
• Spearheaded the creation of the Read More Editor component, utilizing an external service to extract content from provided links. This innovation not only streamlined the user experience but also enhanced content curation and delivery.
• Developed Table Editor component in ReactJS allowing customers to organize and format their content using data tables, adding a top customer requested feature.
• Improved developer life by investigating and improving build issues, implementing linting, and updating applications to new namespaces
• Drove continuous enhancement of the development process by addressing build pipeline issues, instituting comprehensive linting practices, and transitioning over 20+ microapps to new namespaces

### Software Engineer II @ CloudLock - Now part of Cisco
Jan 2017 – Jan 2019 | Greater Boston Area
• Maintained existing AngularJS codebase while also holding sessions teaching new developers how to develop in our system.
• Reworked the entire Cisco Cloudlock application CSS styling to match the styling of the Cisco Umbrella product.
• Developed new front-end features while working closely with UI designers to match the product with the designers’ vision.
• Developed React microapp for authorizing customer’s third-party applications as part of an effort to integrate our app into a much larger ecosystem.
• Ported and tested existing infrastructure into Terraform and deployed into a FedRamp compliant AWS
environment.

### Software Engineering Intern @ Citrix
Jan 2016 – Jan 2016 | Burlington, Massachusetts
• Helped implement the build verification test for the PVS group using Citrix’s testing framework.
• Implemented VPN gateway to serve as a connection between testing hypervisors on separate networks.

### Software Engineering Intern @ CloudLock
Jan 2015 – Jan 2015
•Wrote script using Python and Flask to populate a Salesforce domain with
automatically generated objects that would be discovered by Cloudlock’s policy engine.
• Implemented major customer-facing web UI features that provided Cloudlock’s customers with a clean and simple overview of their Cloudlock products.
• Developed front-end changes in AngularJS while working in an agile work environment and coordinating changes with back-end developers.

### Software Engineering Intern @ CloudLock
Jan 2014 – Jan 2015


## Education
### BS in Computer Science
University of Massachusetts Lowell


## Contact & Social
- LinkedIn: https://linkedin.com/in/sscheffelaarklots

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Source: https://flows.cv/stevenscheffelaarklots
JSON Resume: https://flows.cv/stevenscheffelaarklots/resume.json
Last updated: 2026-03-28