Sai Sagar Seru
Sai Sagar Seru

Open to senior full-stack roles

Full-stack developer building fast, scalable web products.

4 years shipping React, Next.js and TypeScript apps for Verizon and Visible — from micro-frontends and secure checkout flows to the Backend-for-Frontend layer behind them. Based in Noida, India.

Currently

Experience Engineer L2

Publicis Sapient · Visible & Verizon Prepaid · since May 2024

GitHub@ssseru (opens in a new tab)LinkedIn/in/saisagarseru (opens in a new tab)
  • ~20%

    lower UI render latency after integrating a Spring Boot BFF

  • ~30%

    fewer production defects after a legacy-to-React migration

  • 10+

    critical modules moved from Ext.js/jQuery to React & TypeScript

  • 85–90%

    unit-test coverage, with WCAG-compliant UI throughout

Selected work

  • Visible · Verizon · 2024 — now

    Brand-agnostic micro-frontends

    Architected two new React MFEs (account-overview and trade-in) reused across Visible and other Verizon sub-brands, with Dashboard and Profile pages that restyle themselves from runtime brand parameters.

    • React
    • TypeScript
    • Micro-frontends
  • Visible · Verizon Prepaid · 2024 — now

    Secure Cart & Checkout + BFF

    Shipped high-conversion checkout with 3D Secure authentication, and integrated a Spring Boot Backend-for-Frontend whose payload tuning cut render latency ~20% across transactional funnels.

    • Next.js
    • Spring Boot BFF
    • 3DS
  • Verizon ACSS · 2023 — 2024

    Customer-care platform modernisation

    Led the migration of 10+ modules from Ext.js/jQuery to React, TypeScript and Redux (Ducks pattern), and built data-heavy AG Grid views with leaner REST integration that cut data latency ~15%.

    • Redux
    • AG Grid
    • REST
  • Developer productivity · 2025

    AI-assisted BFF schema generation

    Built custom GitHub Copilot skills that auto-generate BFF JSON schemas, halving configuration time and feeding downstream UI scaffolding tools.

    • GitHub Copilot
    • JSON Schema

Stack

Frontend

  • React
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • Redux
  • Context API
  • React Router
  • HTML5
  • CSS3 / SCSS
  • Chakra UI
  • AG Grid
  • Micro-frontends

Backend

  • Node.js
  • Express.js
  • Spring Boot
  • REST APIs
  • BFF
  • MongoDB

Tools & testing

  • Git
  • JIRA
  • GitHub Copilot
  • Claude
  • Jest
  • React Testing Library
  • WCAG

Experience

Publicis Sapient · Noida

Experience Engineer L2
May 2024 — now
Experience Engineer L1
Jan 2023 — Apr 2024
Junior Associate Technology
Jul 2022 — Dec 2022

Also: sets coding standards for new MFE repos, reviews code, mentors junior engineers and supports production for Visible and Verizon Prepaid.

Education

B.E. Computer Science

Ramaiah Institute of Technology, Bengaluru

2018 — 2022 · CGPA 8.69

Recognition

  • Ascend program: GenAI adoption via prompt engineering2025
  • Learning Mindset Core Award2023
  • Inclusive Collaboration Core Award2024

Have a role in mind? Say hello.