Enterprise Application Architect

At Citius Tech, we constantly strive to solve the industry's greatest challenges with technology, creativity, and agility. With over 8,500 healthcare technology professionals worldwide, Citius Tech powers healthcare digital innovation, business transformation, and industry-wide convergence for over 140 organizations through next-generation technologies, solutions, and products. We aim to accelerate the transition to a human-first, sustainable, and digital healthcare ecosystem with the world's leading Healthcare and life sciences organizations and our partners.

To inspire new possibilities for the health ecosystem with technology and human ingenuity.

• Owns the end-to-end platform architecture and target operating model for a multi-tenant SaaS platform on AWS.
• Sets the reference architecture, guardrails, non-functional requirements (NFRs), architecture decision records (ADRs), technology standards and evolution of roadmap spanning application, data, security, Dev Sec Ops , and cost optimization.
• Partners with business and compliance (HIPAA rules) to ensure scalability, resilience, and auditability.

• Define north star architecture, standards, and reference implementations; maintain roadmaps.
• Define Enterprise Application Integration (EAI) architecture with upstream and downstream enterprise systems such as (but not limited to) Team Works/CRM/ITSM/H2/Deputy/Scribe/Gurobi Optimizer.
• Define and maintain multi-tenant SaaS reference architecture (tenant isolation, metadata, routing, billing/chargeback, service quotas).
• Lead architecture reviews, trade-off decisions, and architecture runway for SAFe trains.
• Partner with security/compliance on HIPAA/HITRUST controls by design.
• Work closely with product management, design, and other cross-functional teams to align technical and product roadmaps.
• Provide detail & high-level oversight of overall solution & system architecture, technical direction.
• Establish the microservices architecture for .NET on EKS with Istio (service mesh, mTLS, traffic policies, resiliency patterns, rate limiting).
• Define case management & rules architecture (e.g., Camunda)—modeling state machines, SLAs, timers, and human tasks.
• Govern data architecture: RDS (Aurora Postgres/MySQL), RDS Proxy, Redis/Elasti Cache, S3 for DMS, object lifecycle, encryption, partitioning, multi-tenant data isolation strategies (pooled vs silo vs hybrid).
• Drives security & compliance architecture: HIPAA, PHI, IAM boundaries, KMS, TLS, tokenization, audit trails, immutable logs (Cloud Trail/Lake, Open Telemetry).
• Drive Well-Architected (WAF) reviews across SaaS Lens, Modernization, App Migration; define NFR SLOs (availability, latency, RTO/RPO).
• Define observability strategy: tracing, logging, metrics, SLO error budgets, synthetic checks; golden signals.
• Establish Dev Sec Ops  blueprint: pipelines, IaC (Terraform/CDK), policies-as-code, SBOM/SCA, container supply chain security.
• Set platform roadmaps for capabilities: email monitoring/response, DMS, scheduling system, auditing, and reporting/analytics.
• Chair Architecture Review Board and ensure adherence to standards via architecture runways and ADRs.

• 15–22+ years overall, 5+ years as an enterprise/platform architect for SaaS on AWS.
• Kubernetes + Istio production experience (mTLS, gateways, sidecars, traffic policies, retry/breakers).
• Multi-tenant patterns (siloed vs pooled DB schemas, tenant-aware routing, per-tenant encryption keys, tenant throttling).
• .NET microservices, DDD, event-driven architecture, outbox/eSaga patterns.
• BPMN/workflow/rules engines (Camunda), and case management design.
• Security/compliance for healthcare (HIPAA/PHI) and US regulatory understanding for No Surprises…