Apr 2025 – May 2025 · 1 mo

• > Took time off to rest, refocus, and work on a personal project: a portfolio website and technical blog at sahilten.com.
• > Also built in product analytics with session replays and event tracking to study real user behavior. This helps uncover friction points, improve navigation, and drive UX decisions based on actual usage data.
• > The idea is to simplify the job search process in the future. Visitors can explore my projects, read technical blogs, check out my code, and contact me, all in one place.

Mar 2023 – Mar 2025 · 2 yrs · New York, New York, United States

• > Improved frontend load times by optimizing API responses, reducing payload size by up to 20x and improving Time to Interactive (TTI) across critical user flows.
• > Scaled contractor invoicing by building unified views to review, approve, and pay invoices, supporting $500K+ in monthly transactions
• > Led payroll experience development for employees and contractors, enabling multi-role contracts (W2, contractor, EOR) and workflows including onboarding, invoicing, pay stubs, and tax docs.
• > Enforced a strict Content Security Policy (CSP), mitigating XSS/clickjacking risks and scoring 100/100 on Mozilla Observatory
• > Integrated Check payroll APIs, powering employee creation, payroll runs, pay stub access, and tax history, enabling 8+ new client onboardings and a new revenue stream
• > Integrated and extended Monite invoicing with custom line items, discounting, and support for PDF and email formats
• > Fixed a critical session renewal bug affecting ~7% of onboardings, boosting platform reliability during extended user sessions.
• > Improved code quality by enhancing static checks, eliminating the need for Greptile and saving $1K+ annually in dev tooling.

Jul 2022 – Jan 2023 · 6 mos · Gurugram, Haryana, India

• > Improved mobile performance scores on Lighthouse by 2x through frontend optimization and codebase refactoring, enhancing load times and interaction quality on low-end devices.
• > Integrated HubSpot CMS via AWS Amplify, enabling the marketing team to publish content independently, reducing turnaround time and freeing engineers to focus on core product deliveries.
• > Redesigned mobile-first, fully responsive learner workflows for tests, assignments, and content, improving engagement and retention across web and mobile.
• > Built v3 of the Mentor Management System, delivering responsive dashboards for mentors to manage queries, assignment reviews, and learner progress, streamlining teaching workflows.

Mar 2022 – Jul 2022 · 4 mos

• > Built multiple products from scratch, including I10 Coder, Sherlock IPA, and a custom-designed Analytics Platform tailored for insurance providers.
• > Redesigned and migrated Sherlock AI from Django templates to React CSR, achieving 2x faster load times, improved UI consistency, and better code maintainability.
• > Designed and developed the company website end-to-end, delivering a responsive, SEO-optimized experience with a 100% Lighthouse score across performance, SEO, accessibility, and best practices.
• > Defined frontend architecture and engineering standards, introducing CI/CD pipelines, scalable guidelines, and best practices to streamline development and deployment.
• > Deployed products on AWS CloudFront, cutting hosting costs by 10x and improving availability and latency for global users.
• > Engineered a hybrid SSR/CSR architecture using React and Django, optimizing asset delivery with Nginx, reducing file sizes by 3x and improving First Contentful Paint (FCP).

Feb 2021 – Mar 2022 · 1 yr 1 mo

Jun 2020 – Jan 2021 · 7 mos

• > Created a static site to display the product catalogue
• > Used a third-party low-code tool to handle 20% month-on-month increase in orders
• > Worked on creating an in-house web-app to handle various CRUD operations