Senior Application Architecture Engineer

OSC Global

About The Position

The Senior Application Architecture Engineer provides enterprise-level application and data-flow architecture support for government IT systems. This role is responsible for mapping application interdependencies, designing secure and scalable application ecosystems, documenting data movement, and aligning application architectures with enterprise standards and mission objectives. The individual serves as the technical authority for application integration, system interoperability, and modernization initiatives.

Requirements

Minimum of 10+ years of experience in enterprise application architecture and engineering.
CompTIA Security+ or higher
High School Diploma or equivalency.
Demonstrated experience supporting large-scale government or enterprise systems.
Experience with Cloud and hybrid application environments
Experience with Containerization (Docker/Kubernetes / Openshift)
Experience with Virtualized application platforms
Experience with Enterprise data integration
Experience supporting RMF, STIG, and NIST requirements
Strong technical writing and briefing skills
Active U.S. Government Clearance or ability to obtain
Must be U.S. citizen
Ability to pass a pre-employment background check
Expert knowledge of Multi-tier application architectures
Expert knowledge of Microservices and service-oriented architectures
Expert knowledge of API management and integration platforms
Expert knowledge of Database-driven applications
Expert knowledge of Messaging and middleware platforms
Proficiency with architecture modeling tools
Ability to translate mission requirements into technical architecture
Good interpersonal skills: ability to work effectively and cooperatively with all levels of management and staff, affiliated-company employees as well as outside business associates; exhibits a professional manner in dealing with others.
Superior organizational, follow-up, and detail-oriented skills.
Ability to maintain accurate records.
Work independently, as well as on a team and with minimal supervision.
Make decisions, solve problems, and exercise excellent judgment.
Ability to research, organize and analyze technical information with particular attention to accuracy and detail.
Excellent written and verbal communication skills; including thorough knowledge of proper grammar, advanced vocabulary, spelling, editing and proofreading skills.
Proficient using Microsoft Office products, such as Word, Excel and PowerPoint, and industry-standard computer software and databases.
High degree of sensitivity regarding confidential information.
Sufficient fine motor skills for the use of computers, calculators with an ability to withstand repetitive keyboarding for extended periods of time.
Visual and communications ability adequate to perform the essential functions of the job.
Ability to kneel, bend and twist at the waist on an occasional basis.
Ability to reach below shoulder height with regular frequency (desk position) and at or above shoulder height on occasion.
Ability to push, pull, carry and lift objects weighing up to 10 pounds on a regular basis, and greater weights on an occasional basis.
Ability to travel by vehicle or aircraft, and ability to safely operate a motor vehicle.

Nice To Haves

Bachelor’s degree from an accredited university in Information Technology or related field
TOGAF
AWS/Azure/GCP Architect Certifications
Certified Kubernetes Administrator (CKA)
CISSP
ITIL

Responsibilities

Lead enterprise application and data architecture planning and design
Perform quarterly assessments of application ecosystems and system integrations
Conduct discovery of application dependencies, interfaces, and data exchanges
Develop and maintain layered application architecture documentation including: Conceptual system views, Logical application architectures, Physical deployment models, Data flow diagrams
Design secure, scalable, and resilient application environments
Architect API frameworks, middleware, and integration platforms
Support modernization, cloud migration, and system consolidation efforts
Evaluate legacy systems and recommend modernization strategies
Design application redundancy, failover, and disaster recovery architectures
Support DevSecOps pipelines and CI/CD integrations
Ensure alignment with cybersecurity, RMF, and compliance requirements
Collaborate with network, database, cybersecurity, and infrastructure teams
Support system change reviews and technical governance boards
Provide impact analysis for proposed system changes
Maintain enterprise application standards and reference architectures
Support incident response and root cause analysis related to application failures
Present architecture assessments and recommendations to leadership
Perform other duties as appropriate and as assigned.