Java Backend Developer (Redis and PostgreSQL)

Original job posting

Design, develop, and maintain high-performance Java microservices within a distributed, event-driven architecture on Azure. Optimize service-to-service communication and manage PostgreSQL and Redis data strategies for a mission-critical platform.

Job details

Required Skills & Experience 5+ years of hands-on microservices development in Java 17+ with Spring/Spring Boot experience Experience building distributed, highly available, fault-tolerant systems supporting high-volume concurrent transactions Experience with Kubernetes, Docker for container orchestration and deployment (understanding of nodes and pods and being able to write Docker files) Experience with Rest/Restful API development experience - gRPC is preferred Experience designing and working in PostgreSQL database including schemas, migration, access patterns, integrity, performance, reliability, backups, replication, and recovery Design and implement Redis caching and data-synchronization strategies, including TTLs, invalidation, consistency, and cache performance Nice to Have Skills & Experience Networking protocols relevant to distributed microservices (TCP, gRPC, gNMI, and/or real-time communication protocols) Private connectivity patterns: site-to-site VPN, private DNS, hub-and-spoke network topologies Background in satellite, telecom, or network management systems (NMS, ONAP, OAM/IP, SIP/RTP) Job Summary Insight Global is looking to bring on a Senior Backend Developer strong with Java (Java 17+) and Spring Boot experience. You will be building highly available, large-scale distributed systems in a cloud-native environment. You would be working on a mission-critical Azure-based platform that serves as a central control unit, where low latency, reliability, and resilience are critical. The role involves designing and maintaining Java microservices, deploying services on Kubernetes using Helm, and optimizing service-to-service communication using gRPC, REST, and messaging protocols. A strong understanding of distributed systems, networking performance, scalability, fault tolerance, and microservices architecture is essential, as you will help shape secure, high-performance services that operate across multiple regions and environments. Key Responsibilities Design, develop, and maintain Java (Java 17+) services within a distributed, event-driven architecture using Spring Boot. Package, deploy, and operate microservices on Kubernetes using Helm across multiple environments (dev/test/prod). Contribute to service decomposition, domain boundaries, and API design with a focus on latency, throughput, reliability, and backward compatibility. Design and implement reliable service-to-service communication using REST, gRPC, and messaging protocols. Support protocol-agnostic ingress suitable for long-lived or reconnect-sensitive traffic. Help optimize networking concerns (TCP behavior, connection pooling, backoff, circuit breaking) for high-scale traffic. Design, maintain, and optimize PostgreSQL schemas, migrations, access patterns, integrity, performance, reliability, backups, replication, and recovery. Design and implement Redis caching and data-synchronization strategies, including TTLs, invalidation, consistency, and cache performance. AI: We may use artificial intelligence tools to assist with the screening, assessment, or selection of potential applicants for this position. Vacancy: This posting is for a currently vacant role, and the successful candidate will be hired into an existing open position.

What you’ll do

Design, develop, and maintain high-performance Java microservices within a distributed, event-driven architecture on Azure. Optimize service-to-service communication and manage PostgreSQL and Redis data strategies for a mission-critical platform.

Requirements

Requires 5+ years of experience in Java 17+ and Spring Boot development for highly available distributed systems. Proficiency in Kubernetes, Docker, PostgreSQL, and Redis is essential, with a preference for gRPC experience.

Listed skills

• Microsoft Azure · Preferred
• Kubernetes · Preferred
• Redis · Preferred
• PostgreSQL · Preferred
• Docker · Preferred
• Spring Boot · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Java 17+
• Spring Boot
• Microservices
• PostgreSQL
• Redis
• Kubernetes
• Docker
• gRPC
• REST API
• Helm
• Azure
• Distributed Systems
• Event-Driven Architecture
• TCP
• Network Management Systems
• Fault Tolerance

Job areas

• Software
• Technology
• Engineering
• Consulting