Senior Engineer- Backend, Java

Position: Senior Engineer - L4 (Backend)

About Us

Vajro is 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 don't just build mobile apps, they build relationships with their customers.

The Opportunity

Senior Backend Engineer

What You'll 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 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 itthat'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.