Senior Engineer - L4 (Backend)

Actively Reviewing the Applications

Superfans.io

India, Tamil Nadu, Chennai Full-Time

Posted 2 days ago • Apply by April 28, 2026

Job Description

About Us

Superfans.io is a SaaS startup revolutionising how modern e-commerce brands connect with their customers through mobile-first experiences. We empower thousands of e-commerce brands worldwide with our app builder, enhanced by cutting-edge social commerce, customer retention analytics, and community engagement tools that transform mobile presence from afterthought to loyalty driver.

We create a comprehensive ecosystem where brands don't just build mobile apps, they build relationships with their customers.

Position: Senior Engineer - L4 (Backend)

Location: Remote (Chennai HQ)

Experience Level: 8 - 10 Years

Job type: Permanent

Opportunity

We're looking for a Senior Backend Engineer who's passionate about building platform-scale infrastructure that enables leading DTC and retail brands to create powerful mobile experiences. You'll be instrumental in architecting and developing the core systems that power our platform.

What You'll Do

High-Performance Backend Services

Develop multi-tenant backend services using Java 17+ and Spring Boot that serve millions of API requests daily
Build push notification systems, community engagement systems, and mobile-optimized API endpoints
Implement advanced caching strategies and performance optimizations that keep response times under 200ms globally
Build robust data processing pipelines for customer analytics, engagement tracking, and business intelligence
Implement advanced personalization engines that deliver tailored experiences to millions of end-users

Integration & API Ecosystem

Design developer-friendly APIs that enable seamless integrations with major e-commerce platforms (Shopify, WooCommerce, BigCommerce)
Build webhook systems, data synchronization services, and third-party connector frameworks
Develop authentication, rate limiting, and security systems that protect both our platform and our customers' data
Create monitoring and analytics systems that provide deep insights into platform usage and performance

What We're Looking For

Core Engineering Expertise

8-10 years of backend development experience with proven expertise in building and scaling SaaS systems
Minimum 3+ years in a product-focused company where you've contributed to customer-facing features and platform growth
Deep Java expertise (JDK 17+) with extensive Spring Boot experience and a strong understanding of JVM optimization
Deep Spring Boot expertise, including Spring Boot, Spring MVC, Spring Data JPA, and Spring Security
Production system ownership, including debugging complex issues, performance tuning, and maintaining high-availability services
Microservices experience in designing service boundaries, handling distributed transactions, and managing inter-service communication

SaaS Platform Experience

Multi-tenant architecture experience, including tenant isolation, resource sharing, and customer-specific customizations
API design excellence with proven ability to build intuitive, well-documented APIs that external developers love to use
Database proficiency across both SQL (PostgreSQL/MySQL) and NoSQL (Firebase/Redis) with optimization experience
Container orchestration with Docker and Kubernetes, including deployment strategies and resource management

Modern Development Practices

CI/CD pipeline expertise with automated testing, deployment, and rollback strategies
Observability and monitoring using tools like DataDog, ELK stack, etc
Security-first mindset with experience implementing authentication, authorization, and data protection measures
Performance engineering skills, including profiling, load testing, and capacity planning for high-traffic systems
Code quality advocacy through automated testing, peer reviews, and engineering best practices

Platform & Integration Skills

Cloud platform experience (AWS/GCP preferred) with serverless and managed service utilization
Third-party integration expertise, including REST/GraphQL APIs, webhook handling, and data synchronization

Good To Have

Specialized Experience

No-code/low-code platform development with visual programming, or workflow builders
E-commerce platform integrations with deep knowledge of Shopify
Social commerce features like live selling or community building

Advanced Technical Skills

GraphQL implementation for flexible, mobile-optimized API design
Data pipeline engineering with ETL/streaming processes for analytics and business intelligence
Search and recommendation systems using Elasticsearch, machine learning, or personalization engines

Why Join Us?

Our Culture: We are a 50-member team that loves to play just as hard as we work.
Unlimited Leaves: Your paid time off has no limit. Our only ask is for you to take accountability for your work.
Health Insurance: 1+5 family health insurance with up to 5L coverage. Additional floater plans are available for low rates.
Ownership: At Vajro, we look for people who don’t just do the work, but own it end to end. You see an idea through, you stand by it—that’s the kind of spirit we admire.
Role Scalability: We’re driven by solving problems that can help us empower the e-commerce domain. That means listening closely, spotting the real pain points, and building experiences that bring an impactful and positive experience to our customers.
Globally Spread Team: You will have the opportunity to travel overseas and work for Vajro globally.
Employee-Friendly Salary Structure: We have built a salary structure that will help you save on your taxes. Allowances for food, fuel, gym, HRA, etc., will make your life a whole lot easier when it comes to ITRs.