Senior Applications Architect - Remote/Hybrid

AttainX, Inc.; Arlington (VA); Hybrid; USD 188,000 - 197,000; Full time

Job summary

AttainX, Inc. seeks an experienced Application Architect to support DHS CISA’s Critical Infrastructure Collaboration Platform.

You will design secure, scalable applications, guide modernization and integration, and collaborate with developers, security specialists, and government stakeholders to support risk analysis and resilience. The role emphasizes data pipelines, cloud services, zero-trust security, and enterprise analytics integration within a federal environment.

Qualifications

• Bachelor’s degree in computer science, information systems, software engineering, or a related field preferred; equivalent education or experience considered.
• 7+ years designing enterprise app architectures and guiding modernization, integration, and legacy systems.
• Experience with cloud-native or hybrid architectures, microservices, APIs, and SaaS integration.
• Experience planning data migration with data integrity, validation, and rollback controls.
• Knowledge of secure app design, Zero Trust, IAM, OAuth 2.0 and SAML authentication.
• Ability to translate requirements into architecture plans and interface specs.
• Experience with agile delivery, automated pipelines, and lifecycle testing.
• Familiarity with data pipelines, ETL, cloud storage, and analytics integrations.
• Incorporate Federal security, privacy, accessibility, and ATO requirements (FISMA, FedRAMP, 508).
• Excellent communication and documentation skills; ability to explain architectures to varied audiences.
• Experience with Federal or DHS/CISA systems and AI/ML integration is a plus.

Responsibilities

• Assess architecture, data models, interfaces, dependencies; identify modernization and security risks.
• Define target-state architectures aligned with DHS security requirements for scalability and interoperability.
• Define components, APIs, service boundaries, and integration patterns; guide agile implementation.
• Evaluate cloud services and SaaS trade-offs for security, governance, performance, and cost.
• Design migration strategies with validation, rollback, and transition procedures.
• Develop architecture plans, interface specs, roadmaps, and testing inputs.
• Conduct design reviews covering security, logging, cost, and interoperability.
• Guide integration with ServiceNow, Elastic, Power BI, and other enterprise services.
• Collaborate on secure data pipelines, data lakes, and analytics tools.
• Define infra requirements with IT engineering and leadership; support cloud capacity planning.
• Incorporate security controls (FedRAMP, FISMA, 508) and assist with ATO documentation.
• Review code and pipelines for conformance to architecture; propose improvements.
• Define test criteria and support testing across development and operations.
• Guide UI enhancements to meet usability, branding, and accessibility needs.
• Incorporate AI capabilities within approved controls for automation and risk analytics.
• Maintain architecture docs, SOPs, and support knowledge transfer.

Skills

Enterprise architecture

Cloud-native / microservices

APIs

Data integration / ETL

Security design (Zero Trust)

Agile delivery

Data pipelines / analytics

Federated identity / IAM / OAuth 2.0

Education

Bachelor's degree in CS/IS/SE

Tools

ServiceNow

Elastic

Power BI

Job description

AttainX, Inc. seeks an experienced Application Architect to support DHS CISA’s Critical Infrastructure Collaboration Platform.

You will design secure, scalable applications, guide modernization and integration, and collaborate with developers, security specialists, and government stakeholders to support risk analysis and resilience. The role emphasizes data pipelines, cloud services, zero-trust security, and enterprise analytics integration within a federal environment.