Harshit Mangla

Full-stack Engineer

Available for freelance workIndia

Hey, I'm Harshit — a full-stack engineer with 4+ years across enterprise SaaS and fintech, currently at UKG building agentic AI tooling into engineering workflows. I take on freelance builds on the side. I write about what I learn, and post the occasional dev meme.

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55 contributions in the last year

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Experience

UKG (Ultimate Kronos Group)Full Time

Software Development Engineer II, Full-Stack (AI Specialization)

Aug 2025 — Present · Noida, India — Hybrid

Aug 2025 — Present

Noida, India — Hybrid

Designed and shipped an agentic AI code-security assistant (LLM/transformer-based, using Claude) that scans repositories for vulnerabilities, auto-creates branches, and raises pull requests matching existing code style and patterns — cutting manual vulnerability-triage time by ~35% ahead of a final human review.
Rolled out LaunchDarkly feature-flag management across 4 applications, enabling environment-, customer- and region-based control for safer rollouts — reducing release-related incidents by ~25%.
Built GitHub Actions CI/CD pipelines (80%+ coverage gate, SonarQube analysis) plus region- and environment-specific GCP deployment configs sized from 3 months of usage data — improving release speed and cutting infra over-provisioning by ~20%.
Led UI modernization by migrating to Ignite, UKG's custom cross-product component library, advancing a company-wide initiative to unify design and UX across the product lineup.
Set up a k6-based performance and load-testing environment with Grafana dashboards; used the findings to optimize key user flows, improving response times under load by ~20%.
Triaged and resolved 50+ S2/S3 production defects across 3 applications, improving platform reliability and customer-reported issue volume.

CapgeminiFull Time

Associate Consultant (Front-end Specialist)

Feb 2024 — Aug 2025 · Pune, India — Hybrid

Feb 2024 — Aug 2025

Pune, India — Hybrid

Designed and developed Blaze, a low-code platform that generates enterprise-level React and Angular code, reducing development time by 20x; adopted by 5 clients.
Slashed initial page load time by 71% (8s → 2.3s) via lazy loading, Brotli compression and font preloading.
Integrated unit test automation (Jest, Mockito), improving test coverage from 30% to 95%.
Spearheaded zero-touch deployment for a fintech app, eliminating 20+ manual steps and saving 50+ support hours monthly.
Spearheaded development of a UI and utility library, accelerating creation of 33+ responsive UI screens.
Implemented dynamic, validated forms using Angular's reactive forms, improving form submission success rates by 20%.

CapgeminiFull Time

Senior Software Engineer

Aug 2022 — Feb 2024 · Pune, India — Hybrid

Aug 2022 — Feb 2024

Pune, India — Hybrid

Migrated complex applications from React to Angular, improving performance by 30% and enforcing TypeScript best practices.
Led a cross-functional team and redesigned the open banking platform, resulting in a 20% increase in conversion rates.
Improved Lighthouse accessibility scores from 70 to 98 by enhancing WCAG compliance and responsiveness.
Developed real-time dashboards for trade monitoring using Chart.js and RxJS for efficient state management.
Designed a multi-language switcher (English/Spanish), enabling real-time UI updates.