Systems Engineer Senior

Clearance Level
Systems Engineering
Wilkes-Barre, Pennsylvania

REQ#: G2019-67721

General Dynamics Information Technology (GDIT) is looking for a Systems Engineer in Wilkes-Barre PA to join our team supporting the USPS.


As a Systems Engineer will be responsible for:

  • Providing Systems Engineering technical support.
  • Support systems engineering data design reviews.
  • Perform requirements assessments and requirements decomposition.
  • Model system behavior through functional flows and functional descriptions.
  • Support the development of interface control documents and interface description documents.
  • Support the development of systems engineering presentations and reports.

Bachelor's Degree in a Computer Science or related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.


A minimum of five (5) years of API gateway development and administration including on-prem hardware and software based gateways including the following activities:
- XML/JSON web-service exposure
- RESTful API exposure
- authentication and authorization enforcement using HTTP Authorization and OAuth2 client protocols
- authentication and authroziation enforcement using SSL certificate / 2-Way Mutual SSL protocol
- integration with Active Directory using Kerberos, SAML, and LDAP
- integration with proprietary user registries via web-service APIs
- integration with message queueing infrastructure (JMS providers, IBM MQ, Kafka)
- complex rate limit enforcement based upon request payload content, client system credentials, and end-user credentials
- integration with unified logging facilities (syslog-ng)
- request and response transformation for payload conversions between mix of XML, JSON, plain text, and binary
- protocol conversions between HTTPS, MQ, SCP, FTP
- proactive transactional performance, utilization, and health monitoring
- gateway maintenance and management automation


A minimum of five (5) years of  web-service related development for both client- and server- code including the following activities:
- XML and JSON web service consumer implementation (Java EE 7 or later)
- XML Document XPath based data extraction
- XML and JSON Schema construction
- TLS based connection establishment with application-specific trust-store and key-store data
- Multi-Threaded process implementation and debugging
- Clustered process implementation with inter-node coordination
- Continuous Integration implementation including comprehensive regression test and validation processes of XML and JSON web-services and RESTful services.


A minimum of five (5) years of fundamental network analysis encompassing OSI layers 4 “Transport”, 5 “Session”, 6 “Presentation” and 7 “Application”
- Special focus on TCP/IP and UDP/IP based protocols
- Network packet capture and analysis
- SSL/TLS protocol capture and analysis
- Public Key based encryption, certificate and key management, and digitial signature processing


A minimum of five (5) years of utilizing software configuration management systems including use of branch and merge activities (Subversion, GIT), providing direct support to and production incident handling including:
- immediate resolution in coordination with related and affected applications and groups
- research into root cause, regression validation of status of cause in non-production systems
- documentation of incident including impact to all systems, immediate mitigations, and methods to prevent recurrence


A minimum of three (3) years providing direct support to immediate and senior management in form of technical advice, architecture planning, technical solution feasibility for new business requirements


A minimum of three (3) years executing independent technical research and assessment of technology products resulting in:
- assessment of technical appropriateness to specific problems or application to business requirements
- high level and technical design for implementation and integration with existing systems
- production support requirements assessment
- development and production support resource requirements breakdown
- initial task breakdown for development and implementation


Strong knowledge in several of the following qualifications:
• Facilitate design of business information systems that meet stakeholder requirements and are optimal solutions within cost and performance.
• Facilitate designs that strengthen application core performance.
• Knowledge/experience with Agile Methodologies
• Ability to prepare cost estimates
• Knowledge/experience of SDLC practices
• Effective liaison between business and technical teams
• Strong facilitation skills to effectively lead discussions across multiple groups
• Change Management and Configuration Management (VersionOne, ServiceNow, etc)
• Application Lifecycle Management (ALM)
• Capacity Planning
• Project Management / Project Planning
• MS Office Suite









" We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.