Senior Application Architect/ Developer

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Government Systems Technologies Inc. (GSTi), is seeking the following. Apply via Dice today!Senior Application Architect/ DeveloperHerndon, VAContract to HireKey ResponsibilitiesApplication Portfolio AssessmentLead large-scale application portfolio discovery and assessment engagements across enterprise client environments covering 100s to 1000s of applications spanning Java, .NET, legacy frameworks, packaged COTS applications, and custom-built systemsDesign and execute application assessment frameworks covering Technical health, cloud readiness, containerization / serverless readiness and potential modernization pathwaysConduct and Lead application dependency mapping and integration topology analysisLead technical interviews and workshops with client development, operations, and architecture teams to supplement automated discovery data with qualitative contextProduce formal Application Assessment Reports with executive summary, portfolio heat maps, technical findings, R-Treatment recommendations, and migration / modernization readiness scores per applicationLarge-Scale Application Migration & Modernization ArchitectureDesign target state cloud architectures for complex, multi-tier enterprise applications spanning web, middleware, and database layers across Java, .NET, and polyglot environmentsArchitect DevSecOps transformation pipelines including CI/CD design, automated testing integration, security scanning, and GitOps adoption for modernized application platformsMigration Strategy & R-Treatment Decision MakingDevelop and apply structured R-Treatment decision frameworks based on business value, technical health, cloud fit, and strategic priorityDefine application placement strategies with precision prescribing the right modernization treatment for each application across the 7-RsDesign migration sequencing and wave planning strategies balancing business priority, technical dependency order, risk concentration, and delivery team capacity across multi-year migration programsDevelop risk registers for migration programs, identifying application-level technical risks, integration risks, data migration dependencies, and organizational change management considerationsModernization Roadmap DevelopmentTranslate assessment findings and migration strategy decisions into detailed, milestone driven, multi- horizon modernization roadmapsPrepare business case for modernization roadmaps quantifying expected outcomes while aligning them to Client organizational constraintsDevelop application-level effort estimation models tied to migration wave plans providing granular, defensible estimates by treatment type, application complexity, and integration scopePlatform & Practice DevelopmentOwn the assessment and roadmap solutioning narrative for proposals from discovery scoping through roadmap presentation and commercial structuringLead and support technical solution defense sessions with clients, AWS alliance teams, and partner organizations with confidenceCollaborate with the Solutions team to build and continuously refine reusable assessment and strategy assetsSupport GenAI-assisted assessment tooling development including automated code analysis, dependency extraction, and cloud readiness scoring accelerationSupport POC development and platform demo execution, on need basisIdeal Candidate Profile15+ years of overall IT experience with with minimum 5 plus as an Enterprise Architect or CloudArchitect in large-scale environment8 12 years of experience in application architecture with a clear, demonstrated specialization in application portfolio assessment, migration strategy, and modernization roadmap development at enterprise scaleProven experience leading application assessment engagements for large enterprise clients with portfolios of 50 1000+ applications across heterogeneous technology landscapesDeep expertise in R-Treatment decision frameworks ability to independently assess, classify, andprescribe modernization treatment for diverse application types with clear, defensible rationaleStrong understanding of application placement strategy across containerization, serverless, re-platform, and rearchitect patterns with ability to articulate trade-offs at both technical and business levelsHands-on knowledge of application discovery and assessment tooling such as MGN, CAST, Dynatrace, App Dynamics, SonarQube, Veracode and AWS X-RayStrong understanding of cloud-native architecture patterns: microservices, containers(Docker/Kubernetes/OpenShift), serverless (Lambda, API Gateway), event-driven design, and API-first principles sufficient to assess application fitness for each pattern and design the target architectureExperience with DevSecOps toolchains (Jenkins, GitHub Actions, ADO, Terraform, CloudFormation) and ability to define DevSecOps enablement as part of migration roadmapsStrong business case development skills ability to construct TCO models, ROI analyses, andmodernization investment justifications for executive audiencesExcellent written communication and presentation skills able to produce and present board-quality assessment reports, portfolio heat maps, and roadmap decksProven ability to operate in onsite-offshore engagement models with direct CxO and technical stakeholder engagementTechnical SkillsPrior consulting or pre-sales solutioning experience is strongly preferred7+ years of hands-on development experience with .NET Framework / .NET Core and Java(Spring / J2EE).5+ years of experience with enterprise databases, including Oracle, SQL Server, MySQL,and PostgreSQL.Strong understanding of application architecture patterns, microservices, APIs, anddistributed systems.Familiarity with cloud-native architectures, containerization, and modern applicationframeworks is a plus.Cloud ExpertiseStrong experience with AWS cloud services and migration best practices.Education:Bachelor's degree in Computer Science, Electrical Engineering, or related field.AWS Certified Solutions Architect Professional preferred.Additional certifications such as AWS Certified DevOps Engineer, AWS Certified Security Specialty,or AWS Certified Advanced Networking Specialty are a plus.