Senior Backend Engineer (Java/Go) - Product Discovery

Top 3 reasons to join us

• Production systems operate at large scale.
• Problems are owned end to end.
• Changes enable systems behind core operations.

Job description

We are seeking Senior Backend Engineers to scale our online hypermarket platform. You will work across the entire system—from product and seller operations to product discovery (search, recommendation, browsing) and checkout—while contributing to a data platform handling hundreds of millions of records.

What you’ll do

• Work on core domains: eCommerce, Online-hypermarket Platform, Seller Center, Product Discovery (Search & Recommendation), and Data Platform
• Design and build backend services using Java or Golang, focusing on performance, scalability, and reliability
• Contribute to microservices architecture and distributed system design
• Develop systems for product management, inventory, orders, and checkout flows
• Collaborate with product and data teams to build features from idea to production
• Work with data at scale (hundreds of millions of records) to power business and user experiences
• Build and apply AI-powered tools to support system development, operations, and continuous improvement. Contribute to a domain knowledge base for the team.

Your skills and experience

What we’re looking for

• 4+ years of backend experience with Java (Spring Boot, WebFlux, Reactor) or Golang stack.
• Strong fundamentals in data structures, algorithms, and system design
• Solid understanding of OOP, design patterns, and backend architecture
• Familiarity with distributed systems concepts (concurrency, transactions, scalability)
• Experience with common backend technologies:
  • Databases: MySQL / PostgreSQL
  • Messaging & caching: Kafka, Redis
  • Search: Elasticsearch
• Exposure to microservices and CI/CD practices
• Fast learner, adaptable in a dynamic environment 

Nice to have

• Experience with high-scale systems or real-time data processing
• Familiarity with non-blocking I/O, event-driven architecture, or distributed transactions
• Experience using AI tools in development workflows

Why you'll love working here

Inside our lean engineering team:

• We work on large and complex systems, with a focus on ownership and continuous learning.
• We work within existing constraints and improve systems incrementally.
• We value strong fundamentals and the ability to reason through unfamiliar or complex systems.
• Collaboration is direct, and discussions focus on solving problems and delivering results.

Our offers include: 

• MacBook provided
• Full salary insurance
• Health care insurance
• 19 leave days
• Annual health check-up