Principal Software Engineer - Java | Woodlawn, MD - Onsite role | F2F interview | Contract W2

Next Gen Software Solutions•Woodlawn, MD

6d•Onsite

About The Position

The Principal Software Engineer designs and develops software applications from functional requirements using Twelve-Factor App methodology. The role develops innovative user interfaces and web components in collaboration with other experts, evaluates emerging technologies, and recommends solutions that improve the customer’s software developer experience and delivery efficiency. The engineer works hands-on as a technical lead, contributes to functional strategy, provides guidance to junior- and mid-level developers, and participates in customer technical, design, and development meetings to enhance architecture and code quality. Responsibilities span UI and web application development, including single-page applications and responsive, accessible pages; Java and Spring Boot microservices and RESTful APIs; enterprise batch applications; SOAP services and their security; and data-access layers for DB2 and PostgreSQL. The role also creates API test-framework proofs of concept and templates, writes unit and integration tests, documents architecture and designs, and supports CI/CD, cloud-native deployment, application performance, and security. The position is onsite in Woodlawn, Maryland, five days per week. The contract is W2 for 12 months, and the selected candidate must be local and able to obtain and maintain a public trust clearance.

Requirements

Bachelor’s degree in Computer Science, Mathematics, Engineering, or a related field; a master’s or doctorate degree may substitute for required experience.
At least 10 years of experience with Java, Spring Boot, Angular, and React; the posting also states 12+ years of experience in the role summary.
Extensive design and programming skills in Java and JEE technologies.
Hands-on experience with one or more frameworks such as Angular, React, and Express/Node.js.
Experience as a hands-on technical lead.
Experience working on Agile projects and strong knowledge of Agile terminology and tools, including Agility.
Ability to obtain and maintain a public trust clearance.
Experience designing high-throughput, low-latency systems and scalable solutions that handle concurrent requests with minimal response times.
Experience developing single-page applications, responsive web pages, and cross-browser-compatible applications.
Proficiency in data-processing pipelines, asynchronous processing, caching strategies, load balancing, and application performance optimization.
Experience designing and deploying cloud-native applications on AWS with PostgreSQL.
Deep knowledge of PaaS offerings such as Red Hat OpenShift and Docker.
Experience with continuous integration and development tools including Jenkins, Git/Bitbucket, Jira, Nexus, Maven, SonarQube, Fortify, and UrbanCode Deploy.
Experience with web-service technologies including XML, JAXP, JAXB, JAX-WS, Axis, Jersey, JSON, CXF, REST, and SOAP, and security technologies including LTPA and OAuth2/JWT.
Hands-on design and development experience with microservices and RESTful APIs.
Experience with automated unit testing, mocking frameworks, TDD, and BDD with Cucumber.
Experience with JEE technologies including Struts, Spring Framework (IoC, MVC, transactions, security, and batch), Spring Boot, Spring JDBC, JPA, Hibernate, SOAP/REST, XML, DB2, Tomcat, and WebSphere.
Experience using static code analyzers such as SonarQube and addressing identified bugs, vulnerabilities, hotspots, and technical debt.
Knowledge of web application security vulnerabilities and how to address them.
Experience tuning application performance, including CPU and memory utilization, response times, scalability, and high-volume cloud workloads.
Selected candidate must be local and willing to work onsite in Woodlawn, Maryland five days per week.

Nice To Haves

Proficiency designing and implementing Kafka-based event-driven architectures using producers, consumers, topics, partitions, and consumer groups.
Experience configuring Kafka brokers, managing retention policies, optimizing throughput and replication, integrating Kafka Connect, using Kafka Streams, and monitoring Kafka clusters.
Understanding of current artificial intelligence trends and ability to apply AI to improve or redesign system architectures and identify opportunities for AI-driven solutions.
Experience implementing Section 508 standards for web applications.
Experience writing technical white papers and system design documents.
Prior experience with federal or state government IT projects.
Experience with low-code platforms such as ServiceNow, Pega, or Microsoft Power Platform.

Responsibilities

Design and develop software applications from functional requirements using Twelve-Factor App methodology.
Develop innovative user interfaces and web components in collaboration with other experts, and assess emerging technologies to recommend improvements to software development experience and delivery.
Implement graphical user interfaces using technologies including AngularJS, ReactJS, Node.js, TypeScript, JavaScript, JSP, HTML, CSS, XML, AJAX, and jQuery; develop modern JavaScript front ends using ES13+ features.
Design web page components compliant with Section 508 of the Rehabilitation Act.
Design and develop Java and Spring Boot microservices using RESTful architecture.
Develop and maintain enterprise Java batch applications using JSR 352 and schedule batch jobs using Control-M.
Develop SOAP-based web services using technologies such as JAX-WS, Apache Axis, and WSDL; implement WS-Security using existing IBM DataPower infrastructure; ensure WS-I interoperability and optimize message transmission using MTOM or SWA.
Develop data-access layers for IBM DB2 and PostgreSQL databases using JPA or Spring Data APIs and ORM.
Create proofs of concept and templates for API BDD test frameworks using Cucumber, Gherkin, and Java to implement integration tests.
Develop unit test cases for Java classes using JUnit, Mockito, and Power Mock.
Use Visio, Confluence, and IT governance frameworks to document solution architecture and create UML-based design documents.
Attend customer technical, design, and development meetings and provide technical solutions to enhance architecture, code quality, and processes.
Impact functional strategy by developing solutions, processes, standards, or operational plans.
Provide guidance and support to junior- and mid-level developers.
Perform other duties as assigned or directed.