Senior Java Backend Engineer

STAFFXPERT LLC; Virginia (IL); On-site; USD 120,000 - 180,000; Full time

Job summary

STAFFXPERT LLC is seeking a Senior Software Engineer in McLean, VA to design, build, and support scalable multifamily platform services. You will work hands-on across Java-based microservices, event-driven systems, APIs, MongoDB, AMQ, Kubernetes, AWS, and CI/CD automation to deliver secure, observable backend capabilities.

The role emphasizes production-grade engineering with focus on security, performance, and scalability, including debugging and monitoring.

Qualifications

• 7–8+ years of software engineering experience.
• Strong hands-on Java, Spring Boot, REST APIs & Microservices.
• Extensive AWS experience with cloud-native, event-driven distributed systems.
• MongoDB + SQL/relational databases.
• AMQ / messaging platforms and asynchronous/event-driven architecture.
• CI/CD pipelines and automated testing.
• Hands-on use of AI tools/practices for software engineering.
• Strong backend/API design, data modeling, security, performance & scalability experience.
• Production support, debugging, monitoring, logging and root-cause analysis.
• Mortgage/financial services experience is a plus.
• Bachelor’s degree or equivalent experience.

Skills

Senior-level experience

Java programming

REST APIs

Microservices architecture

Cloud-native / AWS

Event-driven systems

CI/CD / DevOps

AI in software development

Security and performance

Production support & debugging

Mortgage/financial services experience

Education

Bachelor's degree or equivalent experience

Tools

Spring Boot

MongoDB

AMQ

Kubernetes

SQL / Relational databases

AWS

CI/CD tooling

Job description

Location: Mclean, VA (5 Days Onsite)

Position Overview:

We are seeking an experienced and highly skilled Senior Software Engineer to design, build, and support scalable Multifamily application platforms and cloud-native services. This role is focused on hands‑on engineering across Java-based microservices, event-driven

distributed systems, APIs, MongoDB, AMQ, Kubernetes, AWS, CI/CD automation, and production‑grade backend capabilities that are secure, resilient, observable, and aligned with business needs.

Must Have:

• 7–8+ years of software engineering experience
• Strong hands‑on Java, Spring Boot, REST APIs & Microservices
• Extensive AWS experience with cloud‑native, event‑driven distributed systems
• MongoDB + SQL/relational databases
• AMQ / messaging platforms and asynchronous/event‑driven architecture
• CI/CD pipelines and automated testing
• Hands‑on use of AI tools/practices for software engineering
• Strong backend/API design, data modeling, security, performance & scalability experience
• Production support, debugging, monitoring, logging and root‑cause analysis
• Mortgage/financial services experience is a plus
• Bachelor’s degree or equivalent experience

Key Technologies:

Java | Spring Boot | Microservices | REST APIs | AWS | Kubernetes | MongoDB | AMQ | SQL | CI/CD | Automated Testing | Event-Driven Architecture | AI