Product Engineer (JAVA)

About LJI

Loyalty Juggernaut (LJI) is a leading B2B SaaS company redefining how enterprises drive customer engagement and loyalty. Our flagship platform, GRAVTY®, enables global brands to transform loyalty programs into measurable, revenue-generating growth engines.

Built as an AI-first, next-generation solution, GRAVTY® empowers organizations to deliver highly personalized, real-time experiences at scale—helping them increase customer lifetime value and deepen brand relationships.

Headquartered in Palo Alto, California, LJI partners with leading enterprises across 16 major industries including airlines, retail, hospitality, financial services and telecommunications powering some of the most innovative loyalty ecosystems worldwide.

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

We are looking for a powerhouse Product Engineer with deep Java expertise who views coding as a craft. In this role, you will own complex systems, architect reliable integrations, and solve the real world enterprise problems . If you care deeply about software craftsmanship and thrive on shipping code that impacts real users every single day, we want you on our team.

What You'll Own

Java Development — Your Primary Focus

Design, build, and own high-quality, production-grade Java applications with a strong emphasis on clean architecture, code correctness, and long-term maintainability.

Write robust, well-tested backend code using Java and Spring Boot — this is the core of the role.

Contribute meaningfully to code reviews, enforce engineering best practices, and raise the bar for the entire team.

Architect and evolve our Integration Framework with a focus on flexibility, modularity, and reusability — your code will be relied upon by multiple teams and partners.

Partner Integrations & Technical Problem-Solving

Design and implement deep integrations with global platforms (Adobe, Shopify, VTEX, AWS, Braze, Cendyn, and more) via REST APIs, SDKs, and webhooks.

Build custom connectors and adapters — understanding not just what to build, but how to build it right.

Perform POCs and technical feasibility studies; evaluate integration approaches and make sound engineering trade-offs.

Cloud & Infrastructure — Hands-On

Write and deploy code on AWS — Lambda, S3, API Gateway, RDS, CloudWatch. You're comfortable with cloud-native patterns, not just concepts.

Own your deployments end-to-end: CI/CD pipelines, monitoring, and reliability improvements.

Cross-Functional Delivery

Work closely with Product, QA, and Partner Success to ship seamless integration experiences — on time, with quality.

Be an active voice in technical discussions; your engineering perspective matters.

What We're Looking For

Must-Have

Bachelor’s degree in Computer Science, Engineering, or a related field.

Work experience in a Product company/Startup.

Strong Java fundamentals: 1–3 years hands-on with Java / Spring Boot. You understand the language deeply — not just syntax, but concurrency, memory management, and design patterns.

Backend engineering mindset: You think in terms of systems, not just features. You care about correctness, performance, and how your code behaves on a scale.

REST API & microservices expertise: You've built and consumed production APIs. You understand contracts, versioning, and failure handling.

Git & CI/CD discipline: Version control best practices, branching strategies, and automated pipelines are second nature to you.

Cloud experience: Familiarity with AWS services — ideally you've deployed something real on Lambda, API Gateway, or similar.

Debugging & problem-solving: You dig into issues systematically and don't stop at surface-level fixes.

Good ranking on coding platforms is A big plus.

The Right Engineering Mindset

You take ownership — you don't wait to be told what to do when something is broken or unclear.

You default to simplicity and clarity in your code, not cleverness.

You value feedback, give it constructively, and use it to grow.

You're curious about new technologies but pragmatic about when to apply them.

If that's you — we'd love to talk.

Why Join Us

Work at the intersection of product engineering and technology partnerships.

Opportunity to explore and integrate with global platforms like Adobe, Shopify, AWS, and more.

Continuous exposure to modern tech stacks, microservices, and cloud-native architectures.

Collaborative, innovation-driven culture where learning and experimentation are encouraged