Sumen Dubey

Frontend engineer with 3+ years of product engineering experience, specializing in React.js, Next.js, and TypeScript. Built and operated a consumer booking platform serving 400,000+ users and delivered offline-first PWAs for field agents in low-connectivity environments. Known for bringing a quality-first mindset — rooted in a QA automation background — to every layer of the stack: performance optimization, CI/CD pipelines, design systems, and test coverage.

Consistently ships reliable, fast, accessible interfaces that teams and users trust.

Software Engineer – Frontend at Barbeque Nation (2025-09 – Present)

• Architect and operate a high-traffic consumer booking platform for 400,000+ users, engineered for peak-load resilience during restaurant booking surges.
• Cut critical-path render time by ~30% migrating key pages to Next.js SSR with code-splitting — Lighthouse performance score improved from 58 to 82, targeting 90+ with ongoing optimizations.
• Built an enterprise Storybook component library: 40+ fully-typed TypeScript components that reduced UI development time by ~35% across web and mobile teams.
• Eliminated a class of race-condition bugs by redesigning state flows with Redux Toolkit and Context API, measurably increasing application reliability.
• Led test coverage initiative: grew E2E Cypress coverage from 18% to 64% on booking and payment journeys, directly reducing production regressions.

Frontend Engineer at Soft Designers Pvt. Ltd. (2023-09 – 2025-08)

• Shipped 6+ production features on the FacilityHub SaaS platform (React.js, Next.js), improving page-level SEO rankings and achieving consistent cross-browser compatibility across Chrome, Firefox, and Safari.
• Automated release pipelines with CircleCI — reduced manual deployment steps by 80% and halved deployment errors across quarterly release cycles.
• Built Cypress + Jest test workflows covering all critical user journeys, cutting post-release hotfixes by ~40%.
• Introduced data visualization libraries enabling the sales team to self-serve complex reports, eliminating a recurring category of backend support requests.
• Delivered consistently within Agile sprints as part of a 5-person cross-functional team across 8 quarterly release cycles.

Frontend Engineer Intern at Mountblue Technologies Pvt. Ltd. (2023-02 – 2023-08)

• Completed an intensive full-stack bootcamp before transitioning to client project work; built responsive interfaces from scratch using HTML5, CSS3, and JavaScript.
• Contributed to 3 production deployments with zero merge conflicts, maintaining structured Git branching in a team environment.

QA Automation Engineer at MetricStream India (2019-01 – 2020-12)

B.Tech in Information Technology – Haldia Institute of Technology (2015-01 – 2019-12)