Senior Software Engineer – Java Microservices

Overview

We are looking for a highly experienced Senior Software Engineer with deep expertise in Java-based microservices and distributed systems. This role is ideal for engineers who enjoy solving complex, large-scale backend challenges and are passionate about building high-performance, reliable systems used by millions of users globally.

You will play a key role in designing, building, and evolving real-time backend platforms that emphasize scalability, reliability, and performance.

Key Responsibilities

System Architecture & Development

• Design and implement scalable, service-based APIs as part of a migration from monolithic to microservices architecture
• Lead the design of low-latency, event-driven systems
• Implement reactive and asynchronous patterns in cloud-native environments
• Build and maintain production-grade backend services using modern Java frameworks
  
  

Performance & Reliability Engineering

• Optimize JVM performance, including GC tuning and memory management
• Design and improve distributed caching strategies
• Write, execute, and analyze load and stress tests
• Ensure systems can handle high-throughput and low-latency requirements
  
  

Distributed Systems & Data Engineering

• Work extensively with distributed databases and streaming platforms
• Design data models with a focus on data locality, read/write amplification, and scalability
• Build real-time data processing pipelines
  
  

Cross-Functional Collaboration

• Collaborate with frontend, mobile, and platform teams to co-design APIs
• Partner with DevOps teams to improve CI/CD pipelines and deployment strategies
• Mentor junior engineers through code reviews and pair programming
  
  

Production Ownership

• Own services end-to-end, from design to deployment and monitoring
• Participate in on-call rotations and incident response
• Conduct blameless post-mortems and drive continuous improvement
• Implement observability and chaos engineering practices
  
  

• 10+ years of professional software engineering experience (or 5+ years with exceptional open-source contributions)
• Strong expertise in Java (Java 17/21 preferred) and microservices architecture
• Hands-on experience with distributed systems at scale (50k+ RPS in production)
• Deep database experience with Cassandra or similar technologies such as DynamoDB, ScyllaDB, or Riak
• Strong understanding of event-driven architectures
• Excellent system design skills (live system design discussions required during interviews)
• Strong GitHub or open-source portfolio demonstrating architectural or system-level work
• Excellent written and spoken English communication skills
  
  

Technology Stack

Core Technologies

• Java 21
• Vert.x 4.x
• Kafka
• Cassandra (or equivalent distributed databases)
  
  

• AWS (EKS, EBS, S3, Lambda)
• Kubernetes
• Cloudflare (Serverless / Edge)
  
  

• GitLab CI/CD
• Prometheus, Grafana, Jaeger, OpenTelemetry
• Jira & Confluence
  
  

• Strong passion for technology and continuous learning
• Interest in building complex, large-scale distributed systems
• Contributions to side projects, open-source communities, or technical blogs
• Ownership mindset with a focus on quality and reliability
  
  

Key Skills

Java, Microservices, Kafka, Cassandra, DynamoDB, Distributed Systems, Data Processing, Vert.x, AWS, Kubernetes

Skills

java,microservices,kafka,dynamodb,data processing,cassandra,vert.x