Senior Java Engineer
Please watch this 3-minute video first and then read the job description also:
https://www.loom.com/share/007cc52f52784c239ba4939aee23ef3c?sid=782b52a8-17bc-490f-b471-548dbfa6615b
You must speak English fluently
5+ years of Java development experience required
Compensation: $3,500 – $3,800 USD/month (depending on experience) + generous paid time off
Location: Remote
Employment Type: Full-time — Independent Contractor (you’ll handle your own taxes and benefits)
About Exclusion Screening (https://www.exclusionscreening.com)
U.S. healthcare compliance SaaS company based in Washington, DC. Founded by former Assistant U.S. Attorneys, we help over 1,000 healthcare organizations screen employees and vendors to meet federal and state regulations. Our flagship tools, like SAFER, simplify exclusion checks and hotline compliance. We specialize in supporting small healthcare providers with high standards and scalable solutions.
About the Role
We are looking for an experienced Full Stack Java Engineer with a passion for architectural design and system modernization. In this pivotal role, you will be on a team that is leading the transition of a legacy system into a modern, modular, and scalable architecture—leveraging modern techniques. To this end you should have experience in architectures like the Strangler Fig pattern, Hexagonal Architecture, and CLEAN architecture principles .
You will be working closely with leadership and a small engineering team to gradually refactor and rebuild our core system while keeping the production environment stable, secure, and performant. This is a hands-on role for a senior developer leader who enjoys solving complex challenges and driving software evolution across the full stack.
Key Responsibilities
● Modernization & Architecture
○ Participate in the architectural design and progressive refactoring of a legacy Java-based SaaS system into a clean, modular system.
○ Define and document architectural principles, modular boundaries, and migration strategy.
● Full Stack Engineering
○ Contribute to backend (including DB) and frontend development using modern Java and web frameworks.
○ Refactor and re-architect legacy code to increase clarity, testability, and extensibility.
● Cloud Infrastructure & DevOps
○ Maintain and enhance the AWS-hosted environment including services like Lambda, EC2, RDS, and S3.
○ Implement observability and monitoring solutions (e.g., CloudWatch, Sentry).
● System Maintenance & Stability
○ Monitor, debug, and resolve performance bottlenecks and system issues in production.
○ Automate maintenance workflows and system health checks.
○ Collaborate with stakeholders to address bugs, technical debt, and service improvements.
● Team Enablement
○ Share architectural knowledge through diagrams, documentation, and code reviews.
○ Advocate for modern design principles and mentor developers on best practices.
Required Qualifications
● 5+ years of Java development experience, including modern versions (Java 8+), Spring Boot, or equivalent frameworks.
● Deep knowledge of software architecture, particularly in domain-driven design, modular monoliths, and clean layering.
● Experience implementing or migrating to Hexagonal Architecture, CLEAN architecture, strangler fig or similar patterns.
● Hands-on experience with AWS services including Lambda, RDS, EC2, and S3.
● Solid understanding of CI/CD, infrastructure as code (Terraform/CloudFormation), and DevOps practices .
● Proficiency in troubleshooting distributed systems and handling complex production issues.
● Working knowledge of relational databases (PostgreSQL, MySQL) and data modeling.
● Comfort with front-end technologies (HTML/CSS/JS) for full-stack development where needed.
● Strong version control experience with Git.
● Excellent written and verbal communication skills.
Nice to Have
● Familiarity with compliance/regulatory environments (e.g., HIPAA, SOC2). ● Exposure to modern frontend frameworks like React or Vue.
● Familiarity with observability tooling like Sentry, Prometheus, or ELK.
Why Join Us
● Tackle a meaningful challenge of modernizing a production system with real-world impact.
● Have ownership in the architectural direction and leave a long-term legacy in the codebase.
● Work in a collaborative, flexible, remote-first team culture.
● Influence technical standards, practices, and development workflows from the ground up.
If you want to separate yourself from the rest, send me a quick message on WhatsApp or LinkedIn telling me:
What makes you an exceptional fit for this role?
Share your experience, your strengths, or anything that shows you’re the right person for the job.
WhatsApp: https://wa.me/+16193064001
LinkedIn: https://www.linkedin.com/in/escalantericardo/