About LJI
Loyalty Juggernaut (LJI) is a pioneer in cloud-native loyalty and customer engagement. We are THE JUGGERNAUTS, driving innovation and impact in the loyalty ecosystem. Our GRAVTY® platform is the world’s first autonomous loyalty solution, built for the next generation of digital-first enterprises.
Designed for limitless scalability and hyper-personalization, GRAVTY® delivers cutting-edge,AI driven loyalty solutions that transform customer engagement across diverse industries, including Airlines, Airports, Retail, Hospitality, Banking, Telecom, and Insurance.
Our Global Impact:
- 400+ Million members connected through our platform.
- 100+ Global Brands trust us to drive loyalty and brand devotion.
- 3-Time Winner of “Best Technology Innovation in Loyalty”.
- Global recognitions for Excellence in Loyalty Management under numerous categories.
- Recognised as a ‘Strong performer’ in The Forrester Wave™ Loyalty Platforms, Q4 2025.
Explore more about us at www.lji.io
Role Overview
We are looking for a Senior Performance & API Testing Engineer to ensure our SaaS platform is scalable, reliable, and high-performing.
This role is beyond execution - you will run tests, monitor systems, derive insights, and recommend actionable improvements to engineering teams.
Key Responsibilities
- Design and execute performance tests using JMeter or similar tools
- Simulate real-world workloads and monitor system performance (latency, throughput, resource usage)
- Analyze results, identify bottlenecks, and suggest improvements to Dev teams
- Perform API testing using Postman and automation tools
- Build and maintain API test suites and integrate with CI/CD pipelines
- Improve API coverage including edge cases and negative scenarios
- Collaborate with Dev, QA, and DevOps teams for performance tuning and issue resolution
SME Expectations
- Act as a go-to person for performance and API testing
- Provide clear insights, not just reports
- Suggest practical improvements for performance and API reliability
- Bring new ideas to enhance API testing coverage and effectiveness
Basic Qualifications
- B.Tech / B.E. in Computer Science or IT (mandatory)
- Strong proficiency in Java (mandatory)
- 4–6 years of experience in Performance Testing and API Testing
Core Skills
- Hands-on experience with JMeter
- Strong experience in API testing using Postman
- Good understanding of REST APIs and microservices
- Ability to analyze performance metrics and identify issues
- Basic scripting/automation experience (Java/JS/Python)
- Familiarity with CI/CD tools
- Experience in SaaS or cloud environments
What We’re Looking For
- Someone who runs tests and explains what they mean
- Ability to identify problems and suggest fixes
- Practical, hands-on approach with ownership mindset
What We Do
Headquartered in Silicon Valley, Loyalty Juggernaut, Inc. (LJI) is the next-gen loyalty and customer engagement solutions enterprise, helping brands reimagine their customer loyalty initiatives in #theageofdigitalcustomer. GRAVTY®, LJI’s digital transformation platform is specifically designed for the ecosystem-centric loyalty programs. Built ground-up on break-through technologies including serverless computing, microservices architecture, AI/ML, and big data, GRAVTY® addresses the fundamental limitations of the traditional loyalty platforms and enables brands to deliver on the digital customer expectations comprehensively. GRAVTY® client base includes leading global brands, running industry-defining and award-winning, ecosystem-centric loyalty programs in airline, hospitality, retail, food & beverages, financial services, telco and multi-brand, diversified business groups.
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