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Fullstack Engineer

SigIQ

SigIQ

Software Engineering
Berkeley, CA, USA
Posted on Sep 27, 2025

Job Title: Senior Full Stack Engineer

Location: On-site, Berkeley, India

Experience Level: 2-5 years

Type: Full-time

Compensation: Top-of-market salary with meaningful equity

About the company:

SigIQ.ai is an AI x EdTech company on a mission to make one-on-one, world-class learning available to every student on Earth. Our debut AI tutoring app, PadhAI has already coached 200,000+ learners — and, in a live showdown, claimed National Rank #1 on the 2024 UPSC exam, outscoring 1.3M student test takes and GPT-4o/Claude 3. This historical achievement was widely covered by 70+ national news outlets across India. Backed by GSV Ventures, The House Fund, Peak XV (Sequoia India), Duolingo, and more, we just announced a $10M seed round — one of the five largest EdTech seed rounds in 2024.

Next up: ET Live, a real‑time tutoring layer that delivers instant, personalized guidance. You will help build it.

The Team:

Dr. Karttikeya Mangalam founded SigIQ.ai in July 2023 and is committed full-time serving as the CEO and AI team lead. Karttikeya is a PhD graduate from the Berkeley AI Research lab advised by Prof. Jitendra Malik (top 10 AI researchers in the world) and over his last 7 years of research at UC Berkeley, Stanford, Meta AI, Google AI and IIT Kanpur, published 40+ research papers that have been cited 7000+ times. Karttikeya is joined by Prof. Kurt Keutzer as co-founder, and a team of twenty full-time employees across AI, Engineering, Product & Growth.

Role Overview

We are hiring a Senior Full Stack Engineer to design, build, and scale high-performance web applications and backend systems. You will play a central role in crafting an end-to-end learner experience from blazing-fast, intuitive UIs to resilient, cloud-native backend services.

This is not just a coding role: you’ll own features end-to-end, make critical architecture choices, and collaborate closely with our founding team, PMs, and designers. Your work will directly impact how millions of students learn and succeed.

Responsibilities

  • Build, scale, and own core frontend systems.

  • Implement responsive, accessible, and intuitive UIs that work across devices and browsers.

  • Set up and maintain error logging, monitoring, and analytics instrumentation.

  • Collaborate with PMs, designers, and engineers to ship student-facing features.

  • Drive high-quality, high-speed execution in a fast-paced startup environment.

  • Ensure reliability through automated testing pipelines (unit, integration, end-to-end).

Must-Have Qualifications

  • 2–5 years of professional software engineering experience.

  • Strong expertise in JavaScript/TypeScript across both frontend and backend.

  • Solid understanding of React (or Next.js/Vue) and modern CSS frameworks (Tailwind, Styled Components).

  • Backend experience with Node.js/Express or similar frameworks.

  • Proficiency in cloud-native deployments with Docker and CI/CD pipelines.

  • Hands-on experience with Azure and/or AWS (App Services, VMs, S3, App Config, etc.).

  • Familiarity with analytics and monitoring tools (e.g., Sentry, Datadog, Mixpanel)

  • Ability to debug, profile, and optimise applications for scale and performance.

Nice-to-Have

  • Background in early-stage startups or 0→1 product development.

  • Experience leading projects or mentoring junior engineers.

  • Familiarity with GraphQL, SSR frameworks (Next.js), and modern build tools (Vite, Webpack).

  • Exposure to databases (SQL + NoSQL), caching, and message queues.

  • Contributions to open-source projects or public repos showcasing full-stack work.

  • Strong product intuition and ability to scope and ship fast experiments.

Perks & Benefits

  • Competitive cash plus equity package.

  • Direct mentorship from experienced product and engineering leaders.

  • Your work ships fast and impacts students directly.

  • Chance to work on AI-powered education at the bleeding edge of tech.