Demo

Java Full Stack Developer

Manhattan Consulting
York, NY Contractor
POSTED ON 5/7/2026
AVAILABLE BEFORE 6/5/2026
 

 

Role Overview 

This is not a traditional CRUD full stack role. 

We are looking for a senior engineer who can operate at the intersection of: 

  • Backend platform engineering  

  • Event-driven architecture  

  • Modern UI integration  

You will help design and build high-throughput, low-latency systems, enabling real-time data processing and seamless front-end experiences. The role involves deep backend ownership, with front-end contributions focused on integration and performance. 

Key Responsibilities 

  • Platform Engineering: 
    Design and develop core backend platforms using Java and Spring Boot to support scalable, distributed systems  

  • Event-Driven Architecture: 
    Build and maintain asynchronous systems using Kafka or similar messaging technologies  

  • Real-Time Data Processing: 
    Develop pipelines and services handling high-volume, low-latency data streams  

  • API & Integration Layer: 
    Architect and optimize RESTful and event-based APIs for internal and external consumers  

  • Frontend Integration: 
    Partner with UI teams and contribute to Angular-based applications where needed (focus on data flow & performance)  

  • Cloud-Native Development: 
    Contribute to deployment and scaling of services in AWS/Azure environments  

  • System Reliability & Observability: 
    Implement logging, monitoring, and alerting to ensure production stability  

  • Performance Engineering: 
    Identify bottlenecks and optimize systems for throughput, latency, and scalability  

  • Technical Leadership: 
    Drive design discussions, mentor engineers, and promote best practices  

Required Qualifications 

  • 10 years of software engineering experience  

  • Strong expertise in Java and Spring Boot (core backend focus)  

  • Proven experience building event-driven systems (Kafka, MQ, etc.)  

  • Deep understanding of distributed systems and microservices architecture  

  • Experience with high-throughput, real-time data systems  

  • Strong knowledge of REST APIs and asynchronous communication patterns  

  • Proficiency in SQL and data modeling  

  • Experience with CI/CD pipelines and DevOps workflows  

Preferred Qualifications 

  • Experience with cloud platforms (AWS, Azure, or Google Cloud Platform)  

  • Familiarity with containerization (Docker, Kubernetes)  

  • Working knowledge of Angular or modern front-end frameworks  

  • Background in financial services or trading systems  

  • Experience with observability tools (Prometheus, Grafana, ELK, etc.)  

  • Exposure to AI-assisted development tools (Copilot, Claude, etc.)  

 

What Makes This Role Different 

  • Focus on platform systems engineering, not just application development  

  • Heavy emphasis on event-driven and real-time architectures  

  • Opportunity to work on mission-critical, high-scale systems  

  • High ownership and influence on technical direction  

Ideal Candidate Profile 

  • Backend-heavy engineer who can handle scale and complexity  

  • Experience with Kafka microservices performance tuning  

  • Comfortable working in fast-paced, production-critical environments  

  • Can contribute to UI but thinks like a systems engineer  

 

Salary : $100 - $120

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