Lead Full Stack Engineer

About VWO

VWO is a leading Digital Experience Optimization platform trusted by over 3,000 businesses in 100+ countries, including global brands like Samsung, Vodafone, Toyota, HBO, and Domino's. What began 15 years ago as one of the world’s first A/B testing tools has since evolved into a comprehensive, enterprise-grade platform used by product, marketing, and growth teams to experiment, personalize, analyze behavior, and build exceptional digital experiences.

Today, VWO offers a full-stack suite for A/B testing, multivariate testing, feature rollouts, heatmaps, session recordings, behavioural analytics, surveys, personalization, and more across web, mobile, and server-side applications — all in one unified platform. We enable teams to make confident, data-driven decisions that drive user engagement, retention, and conversion

.
VWO is a profitable, founder-led business with $50M+ ARR, strong EBITDA margins, and a history of capital-efficient, sustainable growth. In January 2025, Everstone Capital acquired a majority stake in the company to help accelerate our global expansion — both organically and inorganicall

y.
We are a fully remote team of 450+ people, with go-to-market teams across the Americas, Europe, and APAC, and product and engineering anchored in India. Our culture values deep thinking, fast execution, and strong ownership — with minimal bureaucracy and high autonomy. Despite our scale, we continue to operate with the agility and ambition of a start

up.
Wingify is a product-led tech company on a mission to build intelligent, performance-driven solutions at the forefront of digital experience and AI innovation. We believe in ownership over execution, curiosity over credentials, and building systems that push boundaries in how software interacts with intellige

nce.
We're looking for a Lead Full Stack Engineer who thrives at the intersection of end-to-end engineering and GenAI innovation. If you’re passionate about building both systems and products that harness AI meaningfully—this is the role for

you.
🧩 What You

• ’ll DoArchitect, design, and deliver scalable full-stack features and systems end-to-end—across backend services, APIs, and frontend inter
• faces.Build AI-integrated systems (e.g., NLP automation, GenAI assistants, recommendation engines) using LLMs and GenAI APIs in production environ
• ments.Mentor and lead a high-performance team of engineers, establishing best practices in architecture, testing, and D
• evOps.Own performance, maintainability, and scalability across your projects and ensure long-term code h
• ealth.Collaborate cross-functionally with Product, Design, and Data teams to align on product direction and technical str
• ategy.Stay hands-on with code, lead architectural decisions, and contribute to critical reviews and deploy

ments.
🛠️ Must-Have

• Skills6–10 years of experience in full-stack development roles with a product-focused m
• indset.Strong proficiency in two or more backend languages: PHP, Node.js, Golang, Python
• , Java.Expert in JavaScript/TypeScript with deep knowledge of modern frameworks—React or Angular pre
• ferred.Demonstrated experience integrating GenAI APIs (OpenAI, Langflow, custom GPT agents) in real-world applic
• ations.Strong understanding of software architecture, system design, and microse
• rvices.Solid DevOps exposure: Docker, Kubernetes, CI/CD pipelines (e.g., Je
• nkins).Proficient in SQL and NoSQL dat
• abases.In-depth knowledge of browser internals, rendering optimization, and frontend performance stra
• tegies.Experience with TDD, code quality enforcement, and unit test co

verage.
🎯 Bonu

• s PointsLed a team through an AI-first product transfo
• rmation.Contributed to open-source AI/ML tools or active in AI/engineering comm
• unities.Experience with Langflow, vector databases (e.g., Pinecone, Weaviate), or custom GPT integ

rations.
🌍 Wh

• y Join UsBuild software that blends product and inte
• lligence.Work in a culture where engineers shape product d
• irection.Experiment with bleeding-edge AI and Ge
• nAI tech.Join a team that prioritizes impact, autonomy, an