Software Developer (Frontend / Full Stack)

Job Family :
Software Development & Support

Travel Required :
Up to 10%

Clearance Required :
Active Top Secret (TS)

Guidehouse is seeking a Front-End / Full-Stack Software Developer to join our Technology / AI and Data team, supporting mission-critical initiatives for Defense and Security clients. In this role, you will lead the development of intuitive, secure, and high-performance user interfaces that enable analysts to interact with advanced AI-driven platforms. You will design and implement full-stack solutions that integrate frontend components with backend services, AI/ML pipelines, and workflow orchestration systems, ensuring compliance with stringent federal security and accessibility standards. Collaborating with engineers, architects, and mission stakeholders, you will deliver innovative tools that enhance decision-making and operational effectiveness in support of national security objectives.

What You Will Do :

• Serves as the lead frontend/full-stack engineer responsible for developing the FBI adjudication platform's analyst-facing interface, enabling analysts to review AI outputs, explore entities, assess anomalies, evaluate SEAD-4 scoring rationales, and generate adjudication memos.
• Designs intuitive, performant, secure, and accessible UI components supporting long-document review, multi-panel comparisons, risk visualization, human-AI review workflows, and structured memo generation.
• Implements full-stack integrations between UI components, backend APIs, LLM inference endpoints, retrieval services, scoring engines, and workflow orchestration pipelines.
• Ensures frontend components comply with FedRAMP High, RMF, NIST 800-53, and FBI ATO requirements including session integrity, RBAC, secure rendering, and audit logging.

UI/UX Engineering for Analyst Workflows

• Design and implement UI components for evidence review including long-document navigation, multi-page PDF rendering, in-line annotations, bookmarks, and side-by-side comparisons.
• Develop interfaces for entity extraction panels showing extracted entities, risk flags, cross-references, and SEAD-4 guideline relationships.
• Build a memo-builder UI that integrates AI-generated drafts with human edits, supports structured adjudication templates, source citations, formatting tools, and approval workflows.
• Implement dashboards showing risk indicators, timeline reconstructions, anomaly summaries, continuous-vetting alerts, and adjudication scoring breakdowns.

Frontend Engineering (React / Angular / TypeScript)

• Develop frontend applications using React, Angular, or Vue with strong TypeScript patterns, modular component design, and maintainable state-management solutions (Redux, NGXS, Zustand, MobX).
• Implement secure UI behaviors including RBAC-aware rendering, sanitized inputs, content-security policies, strict routing guards, and safe third-party component usage.
• Optimize rendering pipelines supporting large datasets, long files, and dynamic case workloads using virtualization, lazy loading, and performance tuning.
• Build reusable design systems, theming layers, and accessibility-compliant components (Section 508).

Full-Stack Development & API Integration

• Integrate UI components with backend APIs providing document ingestion, entity metadata, LLM results, retrieval outputs, scoring engines, and memo-generation workflows.
• Implement client-side API wrappers, schema validation, request batching, and offline-safe patterns to improve robustness and reliability.
• Support event-driven features using WebSockets or streaming APIs to show live processing updates, workflow routing events, or LLM inference progress.
• Collaborate with backend engineers to co-design schemas that guarantee consistency, traceability, and audit-friendly communication across API boundaries.

Data Visualization, Evidence Representation & Risk Display

• Build interactive charts, timelines, relationship graphs, and risk-factor matrices visualizing SEAD-4 scoring, anomalies, evidence linkages, and adjudication logic.
• Develop UI components that present AI-generated outputs-including structured reasoning strings, classification labels, and model-confidence indicators-in clear and interpretable formats.
• Implement comparative displays allowing analysts to reconcile model outputs with source evidence, improving trust, transparency, and human-AI synergy.

Security, Compliance & Logging (FedRAMP High / RMF / ATO)

• Implement secure UI development practices including sanitized rendering, CSP headers, strict input validation, and secure embedding of documents and interactive content.
• Integrate client-side logging and audit-event capture ensuring adjudicator actions-reviews, overrides, memo edits, evidence expansions-are captured for ATO compliance.
• Ensure compliance with FedRAMP High, RMF, encryption-in-transit, session protection, idle timeouts, and controlled display of sensitive information.
• Collaborate with Security Engineers to provide UI-specific artifacts for SSPs, control-implementation statements, and audit requirements.

Performance Optimization & Reliability

• Optimize UI bundles using code splitting, lazy loading, caching strategies, and GPU-accelerated rendering when applicable.
• Implement diagnostics for client-side telemetry such as component load times, rendering bottlenecks, network degradation, and user-behavior traces.
• Support automated UI testing using Jest, Cypress, or Playwright, integrating tests into CI/CD pipelines for stable and secure deployments.

Collaboration, Leadership & Mission Enablement

• Collaborate with AI/ML engineers to safely integrate model outputs into UI workflows, ensuring clarity, accuracy, and mission-aligned interactions.
• Work closely with UX designers, policy SMEs, and adjudicators to map operational workflows into intuitive UI flows that improve review throughput and decision consistency.
• Participate in architecture reviews, sprint ceremonies, design workshops, and mission technical exchanges.
• Mentor junior frontend/full-stack engineers in secure UI development, design patterns, observability, accessibility, and federal compliance practices.

What You Will Need :

• An ACTIVE and MAINTAINED "TOP SECRET" Federal or DoD security clearance and obtained and maintain TS/SCI clearance.
• Minimum of Four (4) years of full-stack or frontend development experience, including 3+ years with React, Angular, or Vue.
• Bachelor' s Degree or Four (4) additional Years of experience in lieu of degree.
• Strong expertise with TypeScript, JavaScript (ES6+), REST/GraphQL integration, secure UI development, and state-management frameworks.
• Experience building workflow-driven or document-intensive UIs for complex enterprise systems.
• Experience designing applications in compliance with FedRAMP High, RMF, NIST 800-53, or other federal frameworks.

What Would Be Nice To Have :

• Experience building PDF viewers, annotation tools, or enterprise document-review systems.
• Experience integrating AI-assisted writing tools, LLM-powered UI components, or human-in-the-loop workflows.
• Familiarity with SEAD-4 adjudication, personnel vetting, investigative review, or continuous-vetting mission data.
• Experience working in national-security environments (FBI, IC, DoD, DHS).
• Experience with Material UI, Carbon, Clarity, Chakra, or other design-system frameworks.

What We Offer:

Guidehouse offers a comprehensive, total rewards package that includes competitive compensation and a flexible benefits package that reflects our commitment to creating a diverse and supportive workplace.

Benefits include:

• Medical, Rx, Dental & Vision Insurance
• Personal and Family Sick Time & Company Paid Holidays
• Parental Leave
• 401(k) Retirement Plan
• Group Term Life and Travel Assistance
• Voluntary Life and AD&D Insurance
• Health Savings Account, Health Care & Dependent Care Flexible Spending Accounts
• Transit and Parking Commuter Benefits
• Short-Term & Long-Term Disability
• Tuition Reimbursement, Personal Development, Certifications & Learning Opportunities
• Employee Referral Program
• Corporate Sponsored Events & Community Outreach
• Care.com annual membership
• Employee Assistance Program
• Supplemental Benefits via Corestream (Critical Care, Hospital Indemnity, Accident Insurance, Legal Assistance and ID theft protection, etc.)
• Position may be eligible for a discretionary variable incentive bonus

About Guidehouse

Guidehouse is an Equal Opportunity Employer-Protected Veterans, Individuals with Disabilities or any other basis protected by law, ordinance, or regulation.

Guidehouse will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of applicable law or ordinance including the Fair Chance Ordinance of Los Angeles and San Francisco.

If you have visited our website for information about employment opportunities, or to apply for a position, and you require an accommodation, please contact Guidehouse Recruiting at 1-571-633-1711 or via email at RecruitingAccommodation@guidehouse.com . All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.

All communication regarding recruitment for a Guidehouse position will be sent from Guidehouse email domains including @guidehouse.com or guidehouse@myworkday.com . Correspondence received by an applicant from any other domain should be considered unauthorized and will not be honored by Guidehouse. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event. Never provide your banking information to a third party purporting to need that information to proceed in the hiring process.

If any person or organization demands money related to a job opportunity with Guidehouse, please report the matter to Guidehouse's Ethics Hotline. If you want to check the validity of correspondence you have received, please contact recruiting@guidehouse.com . Guidehouse is not responsible for losses incurred (monetary or otherwise) from an applicant's dealings with unauthorized third parties.

Guidehouse does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Guidehouse and Guidehouse will not be obligated to pay a placement fee.