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 inorganically.

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 startup.

About the Role

As a Senior Backend Developer at Wingify, you’ll take ownership of high-performance backend systems that power applications used by millions. You will work on scalable infrastructure, develop APIs, and collaborate across teams to bring features to life. While the core of this role is strong backend engineering, we also welcome developers with an interest or exposure to AI/GenAI systems as we continue evolving our products with intelligent capabilities.

Key Responsibilities

End-to-End Development: Design, develop, deploy, and maintain microservices and backend applications.
Scalable Architecture: Build reliable systems that handle scale, performance, and resilience.
Product-Driven Engineering: Collaborate with product managers to understand user needs and deliver backend solutions that directly impact the business.
API Design: Create clean, well-documented RESTful APIs for frontend and platform integrations.
Cross-Team Collaboration: Work closely with product managers, frontend developers, and DevOps teams.
Mentorship & Knowledge Sharing: Support junior engineers and contribute to a culture of learning through talks, blogs, or documentation.

What We’re Looking For

Core Qualifications

Minimum 3 to 5 years of backend development experience.
Proficiency in at least two of the following: PHP, Node.js, Python, or Java.
Experience with RESTful API development and distributed system design.
Strong command of relational databases (e.g., MySQL, PostgreSQL) and familiarity with NoSQL solutions like MongoDB.
Experience working in cloud environments such as AWS or GCP.
Comfort with Docker and Kubernetes in production setups.

Bonus Skills (Nice to Have)

Exposure to AI/ML tools or integration of AI APIs (e.g., OpenAI, Hugging Face, Google AI).
Experience integrating LLMs, basic prompt design, or building features powered by Generative AI.
Familiarity with concepts like model inference, vector databases, or AI pipelines.

Why Join Wingify?

At Wingify, we build innovative, user-centric SaaS products that empower businesses to optimize digital experiences. As part of a product-led, engineering-driven culture, you’ll work on problems that directly impact thousands of global customers. We encourage ownership, autonomy, and continuous learning, and provide the freedom to explore areas like AI and intelligent automation as our products evolve.

If you're a backend engineer who enjoys building scalable systems—and you're curious about how AI might shape the future—we’d love to hear from you.

Job Location: Fully Remote (INDIA)