Senior SDET / Full Stack Engineer (Java & Automation)
Reston, VA
Experience: 5
Education: BS
Category: Information Technology
Contractor Work Model: Hybrid
Brand: System One
Job ID: 346021
Date Posted: 02/06/2026
Shortcut: http://jobs.systemone.com/LQec5W
Job Title: Senior SDET / Full Stack Engineer (Java & Automation)
Location: Reston, VA – Mostly remote
Type: Contract
Contact: Crystal.dinnocenti@systemone.com
PURPOSE:
Performs complex analysis, design, development, testing, and debugging of computer software ranging from operating system architecture integration and software design to selection of computer systems, language, and/or equipment. Designs, develops/codes, tests, and documents critical and complex application programs for computer systems. Works with appropriate stakeholders to define system scope and objectives and establish baselines. Establishes project standards and processes. Breaks down software requirements and creates highly complex systems.
ESSENTIAL FUNCTIONS:
- 25% Perform technical detail design, coding, and testing of applications. Serves as subject matter expert for both customer and internal discussions related to maintaining and enhancing existing software systems. Develop and/or analyze interface design documentation. Comply with hardware and software systems standards and procedures. Deliver large systems for tens of thousands of users. Comply with code quality, migration and dev/ops standards and policies
- 25% Performs software analysis, including requirements and uses case development and design. Implements and documents source code to design specifications. Performs software testing including developing and running automated unit tests, drafting, and executing structured automated test cases. Compile, assess, and report data results from software testing and analysis.
- 25% Develops software solutions for enterprise environments and other technologies. Analyzes and implements functional and non-functional (e.g. performance, availability) requirements and designs, implements, and tests software. Performs operations & maintenance (O&M) of existing systems. Identifies areas for improvement and streamlining. Demonstrated experience with front-end and back-end programing and integration frameworks and tools. Assist in the estimation of development of application features
- 25% Provides direct technical support for high level, high visibility and critical trouble calls for supported applications. Works with cross functional teams to develop highly reliable software that runs at scale. Provides recommendations to infuse new technology. Extend open-source libraries and systems as necessary to meet the needs of the team. Play a crucial role in product scoping and roadmap / architecture discussions. Continually evaluate emerging technologies to identify opportunities, trends, and best practices. Mentoring of junior software engineers
QUALIFICATIONS
- To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable
- accommodations may be made to enable individuals with disabilities to perform the essential functions.
- Education Level: Bachelor's Degree
- Education Details: Information Technology or Computer Science
- Experience: 5 years experience with software development, basic coding and compilation, software architecture/design, user requirements definition and software specification development.
- In lieu of a Bachelor's degree, an additional 4 years of relevant work experience is required in addition to the required work experience.
PREFERRED QUALIFICATIONS
- Knowledge, Skills and Abilities (KSAs)
- Ability to communicate technical requirements to all levels of expertise., Advanced
- Proficient in establishing and maintaining good working relationships., Advanced
- Knowledge and understanding of software development life cycle (SDLC)., Advanced
- Proficient with integrating complex and/or existing systems., Advanced
- Knowledge of programming languages (e.g. JavaScript, C, Python, etc.)., Advanced
- Excellent communication skills both written and verbal., Advanced
- Knowledge of cloud technologies (e.g. AWS, Azure), Proficient
- Knowledge of database technologies (e.g. cloud, SQL, Oracle, Mongo DB, PostgreSQL, etc.), Advanced
- Fundamental knowledge of software engineers best practices, agile methodologies, CI/CD pipelines, Advanced
- Knowledge of test-first practices including Test-Driven Development (TDD) for unit tests and Behavior-Driven Development (BDD) for automated acceptance tests, Advanced
- Strong experience with Deployment/Continuous Integration/ Continuous Testing/ Continuous Delivery processes and tools and have expertise in CI/CD tools and framework.
The incumbent is required to immediately disclose any debarment, exclusion, or other event that makes them ineligible to perform work directly or indirectly on Federal health care programs. Must be able to effectively work in a fast-paced environment with frequently changing priorities, deadlines, and workloads that can be variable for long periods of time. Must be able to meet established deadlines and handle multiple customer service demands from internal and external customers, within set expectations for service excellence. Must be able to effectively communicate and provide positive customer service to every internal and external customer, including customers who may be demanding or otherwise challenging.
System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.
System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
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Ref: #851-Rockville-S1
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