Sr Java Developer

CMCI; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

CMCI is seeking a Senior Java Developer to design and build modern microservices in a large AWS-based environment. You will own delivery of scalable services, contribute to platform modernization, and collaborate with cross-functional teams.

This role emphasizes containerization with Docker, Kubernetes (EKS), Traefik ingress, and data systems like RDS and Cassandra, as well as event streaming with MSK. Remote-friendly with local DMV familiarity preferred.

Qualifications

• 7+ years of professional software development experience with Java.
• Strong hands-on experience deploying and managing workloads in AWS/EKS, including Helm charts and troubleshooting via Kubectl.
• Experience implementing API gateways or ingress controllers, specifically Traefik.
• Solid understanding of relational databases (RDS) and distributed NoSQL (Cassandra).
• Proven track record with distributed streaming platforms (MSK / Kafka).
• Experience with Umbrella pattern or similar monorepo/multi-module microservice architectures.

Responsibilities

• Microservices Development: design, build, and maintain Java microservices with an Umbrella pattern across 50+ services.
• Containerization & Orchestration: Dockerize apps and manage AWS/EKS deployments using Helm; use Kubectl for debugging.
• Traffic & Routing: Configure ingress routing, load balancing, and edge routing with Traefik.
• Data & Messaging: Work with Amazon RDS, Cassandra, and MSK for distributed data and streaming.
• Platform Modernization: Lead architecture planning for upcoming Java upgrades and modernization.
• Collaboration: Work with squads to ensure scalable, reliable, and maintainable services.

Skills

Java

AWS

Kubernetes

API Gateway/Traefik

Distributed Data Systems

Event-Driven Architecture

Tools

Docker

Kubernetes

Helm

Kubectl

Traefik

Amazon MSK / Kafka

Job description

Senior Java Developer

Location: Remote (Local to DMV area)

Why CMCI?

CMCI provides management consulting and IT services that empower enterprises to achieve their business goals in today's highly competitive market. Our goal is to seamlessly integrate into each customer's organization to fully understand their business and technology needs. This approach allows us to quickly deliver high quality solutions while achieving the highest level of customer satisfaction on time and within budget. By choosing CMCI, you are choosing a company that can deliver on business outcomes and mission needs in the most cost-effective manner and without sacrificing capability. As a part of CMCI's culture of loyalty and commitment to its employees, CMCI is committed to providing a tremendous career path by promoting employees to their highest potential.

Requirements

Key Responsibilities

• Microservices Development: Design, build, and maintain high-performance, scalable Java microservices using an Umbrella pattern architecture to ensure modularity and clean dependency management across 50+ services.
• Containerization & Orchestration: Package applications using Docker and manage orchestration within AWS/EKS, utilizing Helm charts for standardized deployment configurations and Kubectl for cluster interaction and debugging.
• Traffic & Routing Management: Configure and optimize ingress routing, load balancing, and edge routing using Traefik to ensure secure, high-availability service communication.
• Data & Messaging Architecture: Work with robust data layers including Amazon RDS (relational) and Apache Cassandra (NoSQL), while managing distributed event streaming via Amazon MSK (Managed Streaming for Apache Kafka).
• Platform Modernization: Lead the architectural planning and execution for an upcoming Java upgrade, ensuring compatibility, modernizing legacy patterns, and maximizing performance.

Required Skills & Qualifications

• Java Expertise: 7+ years of professional software development experience with deep expertise in Java.
• AWS & Kubernetes: Strong hands-on experience deploying and managing production workloads in AWS/EKS, including building and tuning Helm charts and troubleshooting via Kubectl.
• API Gateway & Routing: Practical experience implementing API gateways or ingress controllers, specifically Traefik.
• Distributed Data Systems: Solid understanding of both relational databases (RDS) and distributed NoSQL databases (Cassandra).
• Event-Driven Architecture: Proven track record working with distributed streaming platforms, specifically managing topics, producers, and consumers in Amazon MSK / Kafka.
• Architectural Patterns: Experience working within large-scale setups using patterns like the Umbrella pattern to manage monorepos or multi-module microservice ecosystems.

Nice to Have

• Experience migrations or major version upgrades of Java (e.g., migrating to Java 17 or 21)
• Knowledge of service mesh architectures and cloud-native security best practices
• AWS Certified Solutions Architect or Certified Kubernetes Application Developer (CKAD)

Clearance : Must have the ability to obtain a Public Trust clearance, at minimum

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.