Senior Full Stack Engineer

Washington, District of Columbia, United States
Full-time
Posted Dec 13, 2025

Skills

CI/CD
Java
Kubernetes
Quality Management Systems
Test Automation

Job description

Company Overview:

Over the past 15 years, eTel has delivered essential solutions for the federal government by securing and managing data, providing scalable identity access, modernizing legacy systems, and building high-performance platforms. By integrating new technologies and ensuring reliable operations we help agencies stay prepared for future challenges As a premier technology solutions and services company to the US federal government, eTel possesses longstanding relationships across the federal civilian marketplace. Other customers include the broader Treasury Department, Commerce Department, and State Department.

eTel offers integrated CMMI Level 3 processes, tools, and techniques with innovative, cost-efficient, and secure solutions to address complex challenges. eTel also holds ISO 9001:2015, ISO/IEC 27001:2013, and ISO/IEC 20000-1:2018 certifications, and offers dedicated subject matter experts (SMEs) and thought leaders that possess a deep understanding of customers’ environments and challenges.

Place of Performance:

•Primary Location : The primary place of performance is located at the New Carrollton Federal Building (NCFB) in Lanham, MD.

•Remote Work : The Government may accommodate work at contractor facilities and/or remote work with Contracting Officer’s Representative (COR) approval. If approved for remote/contractor facility work, the contractor must have an IRS-issued Security ID and laptop.

Citizenship: U.S. Citizenship required

Security Clearance: Must be eligible to obtain and maintain an IRS Moderate Background Investigation (MBI)/Public Trust.

Role Summary :

The Senior Full Stack Engineer will be a core contributor to the software development lifecycle, responsible for coding, unit testing, and implementing complex software designs for the IRS IRPPS modernization effort. This engineer must be adept at building ultra-high-throughput systems capable of handling massive spikes in data during the peak tax filing season.

Key Responsibilities :

•Develop, unit test, and implement full-stack application designs under the direction of the Architect/Technical Lead.

•Build and optimize highly scalable, transactional services capable of meeting strict SLAs, specifically 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 Operations and Maintenance (O&M) during peak filing seasons, providing incident response, defect remediation, and root-cause analysis.

•Develop automated testing assets and ensure code complies with IRS security, engineering, and architecture standards.

Size, Scope, and Complexity Expectations :

•Size/Complexity : The most critical expectation is documented, verifiable experience implementing high-throughput, transactional systems capable of processing at least 8,800 records per second. Resumes must explicitly demonstrate the candidate's ability to engineer code that sustains this specific velocity under SLA constraints.

•Scope : Must demonstrate recent (within 5 years) experience developing within complex modernization ecosystems, specifically utilizing Java and Informatica to migrate data processing from legacy formats to modern event-driven architectures. The candidate must have experience managing severe volume spikes, similar to the IRS requirement where 80% of an annual 9.2 billion record volume occurs during a concentrated peak season.

Required Education & Experience :

•Education : Bachelor’s degree in Computer Science (or equivalent).

•Experience : Minimum of four (4) years of application development experience using Java and Informatica.

•Critical Metric : Must provide documented experience implementing high-throughput transactional systems that process 8,800 records per second.

Required Tools & Technology Stack :

•Core : Java (17/21), Informatica, Spring Boot.

•Messaging/Integration : Kafka, OpenAPI, REST/SOAP APIs.

•Platforms : OpenShift, Kubernetes, CI/CD pipelines.

Recommended Certifications (To strengthen the resume) :

•Oracle Certified Professional: Java SE 17 Developer

•Red Hat Certified Cloud-Native Developer

•Informatica Developer Certification

Commitment to Diversity -

eTelligent Group provides equal employment opportunities (EEO) to all applicants without regard to race, color, religion, gender, sexual orientation, gender identity, nations origin, age, disability, genetic information, marital status, amnesty, status as a covered veteran, and any other characteristic provided in accordance with applicable, federal, state and local laws.