About Superfans.io [Formerly Vajro]
We are a SaaS startup revolutionizing 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 dont just build mobile apps, they build relationships with their customers.
The Opportunity
Were looking for a
Senior Backend Engineer
whos passionate about building platform-scale infrastructure that enables leading DTC and retail brands to create powerful mobile experiences. Youll be instrumental in architecting and developing the core systems that power our platform at Superfans.io
What Youll Build
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 Were 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 youve 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.
