Principal Software Engineer

Location: Woodlawn, MD – On-site, 5 days per week
Employment: Full-time
Compensation: $110,000/yr.-$130,000/yr.
Clearance: Must be able to obtain and maintain Public Trust
Position Overview
We are seeking an experienced Principal Software Engineer to design, develop, and support enterprise software applications in a federal government environment.
This is a hands-on technical leadership role focused on Java, Spring Boot, Angular, React, microservices, cloud-native applications, and DevOps practices. The successful candidate will develop scalable and secure applications, support system modernization, collaborate with technical teams, and provide guidance to junior and mid-level developers.
The position requires working on-site in Woodlawn, MD, five days per week. The final interview will be conducted in person.
Responsibilities
Design and develop enterprise applications using Java, Spring Boot, Angular, React, and Twelve-Factor App methodology.
Develop responsive user interfaces using AngularJS, ReactJS, Node.js, TypeScript, JavaScript (ES13+), JSP, HTML, CSS, XML, AJAX, and jQuery.
Design web components compliant with Section 508 accessibility standards.
Design and develop microservices and RESTful APIs using Java and Spring Boot.
Develop and deploy cloud-native applications using AWS, Red Hat OpenShift, Docker, and related technologies.
Implement DevOps practices and CI/CD pipelines using Jenkins, Git, Bitbucket, and related tools.
Develop enterprise Java batch applications using JSR 352 and Spring Batch, with job scheduling through Control-M.
Design and implement SOAP web services using JAX-WS, Apache Axis, and WSDL, including WS-Security, IBM DataPower, WS-I, MTOM, and SOAP with Attachments.
Develop data access layers integrating IBM DB2 and PostgreSQL across z/OS, Linux, and other platforms using JPA, Hibernate, and Spring Data.
Design scalable, high-throughput, low-latency applications and optimize performance, caching, asynchronous processing, and load balancing.
Develop automated unit and integration tests using JUnit, Mockito, PowerMock, Cucumber, Gherkin, and BDD/TDD practices.
Identify and resolve application security vulnerabilities, code quality issues, and technical debt.
Create proofs of concept, UML diagrams, solution architecture documents, and technical documentation using tools such as Visio and Confluence.
Collaborate with business analysts, QA teams, project managers, and customers throughout Agile development.
Evaluate emerging technologies and recommend improvements to architecture, development processes, and software delivery.
Serve as a hands-on Technical Lead, providing guidance and support to junior and mid-level developers.
Contribute to technical strategy, standards, and operational improvements.
Perform other duties as assigned.
Requirements
Minimum Qualifications
Bachelor's degree in Computer Science, Mathematics, Engineering, or a related field.
10+ years of experience with Java, Spring Boot, Angular, and React.
Extensive experience designing and developing applications using Java and JEE technologies.
Hands-on experience serving as a Technical Lead.
Strong experience with Angular, React, Express, or Node.js.
Experience with Agile development methodologies and tools, including Agility.
Experience designing microservices, RESTful APIs, and single-page applications.
Experience developing responsive web applications and addressing cross-browser compatibility.
Experience designing high-throughput, low-latency, scalable systems.
Experience developing cloud-native applications using AWS and PostgreSQL.
Strong knowledge of Red Hat OpenShift, Docker, and PaaS technologies.
Experience with CI/CD tools, including Jenkins, Git, Bitbucket, Jira, Nexus, Maven, SonarQube, Fortify, and UrbanCode Deploy.
Experience with Java and JEE technologies, including Struts, Spring Framework (IoC, MVC, Transactions, Security, Batch), Spring JDBC, JPA, Hibernate, DB2, Tomcat, and WebSphere.
Experience with web services and security technologies, including XML, JAXP, JAXB, JAX-WS, Axis, Jersey, JSON, CXF, REST, SOAP, LTPA, and OAuth2/JWT.
Experience with automated unit testing, TDD, BDD, JUnit, mocking frameworks, and Cucumber.
Experience using SonarQube to identify and remediate bugs, vulnerabilities, security hotspots, and technical debt.
Knowledge of web application security vulnerabilities and remediation practices.
Experience optimizing CPU, memory, response times, and application scalability in cloud environments.
Strong communication, problem-solving, and technical leadership skills.
Must be able to obtain and maintain a Public Trust clearance.
Must be willing to work on-site in Woodlawn, MD, five days per week.
Preferred Qualifications
Master's or doctoral degree in Computer Science, Engineering, or a related field.
Experience with Kafka-based event-driven architectures, including producers, consumers, topics, partitions, consumer groups, replication, retention, Kafka Connect, and Kafka Streams.
Knowledge of artificial intelligence and its application to enterprise software architecture and modernization.
Experience implementing Section 508 accessibility standards.
Experience preparing technical white papers and system design documentation.
Prior experience supporting federal or state government IT projects.
Experience with low-code platforms such as ServiceNow, Pega, or Microsoft Power Platform.
Benefits
Salary: $110,000/yr.-$130,000/yr. based on experience.
Health insurance stipend. More benefits will be added in the next 6 months.

Work arrangement
No