Senior Full Stack Engineer

The role

The Senior Full Stack Engineer will code, unit test and implement complex software designs for the IRS IRPPS modernization effort. The role builds high-throughput systems that handle large data spikes during peak tax filing season.

What you will do

• Develop, unit test and implement full-stack application designs under the direction of the Architect/Technical Lead.
• Build and optimize highly scalable transactional services that meet strict SLAs, processing at least 8,800 records per second.
• Develop microservices and APIs using Java 17/21, Spring Boot and Informatica for data routing, validation and posting.
• Support 24x7 O&M during peak filing seasons, including incident response, defect remediation and root-cause analysis.
• Develop automated testing assets and ensure code complies with IRS security, engineering and architecture standards.

Required qualifications

• U.S. citizenship required.
• Eligible to obtain and maintain an IRS Moderate Background Investigation (MBI)/Public Trust.
• Bachelor's degree in Computer Science (or equivalent).
• Minimum of four (4) years of application development experience using Java and Informatica.
• Documented experience implementing high-throughput transactional systems that process 8,800 records per second.
• Recent (within 5 years) experience in complex modernization ecosystems using Java and Informatica to move data processing from legacy formats to event-driven architectures.
• Experience managing severe volume spikes.
• Core stack: Java (17/21), Informatica, Spring Boot.
• Messaging and integration: Kafka, OpenAPI, REST/SOAP APIs.
• Platforms: OpenShift, Kubernetes, CI/CD pipelines.

Nice to have

• Oracle Certified Professional: Java SE 17 Developer.
• Red Hat Certified Cloud-Native Developer.
• Informatica Developer Certification.

Before you apply

• U.S. citizenship is required.
• Must be eligible to obtain and maintain an IRS Moderate Background Investigation (MBI)/Public Trust.
• Resumes must explicitly show documented 8,800 records-per-second throughput experience.

About the company

eTelligent Group (eTel) provides technology solutions and services to the U.S. federal government, including data security, identity access, legacy modernization and platform building. Its customers also include the Treasury, Commerce and State Departments.