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50 senior system architect jobs at 28 companies in Missouri

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Senior System Architect
Denver or St. Louis or Sterling or Springfield
$99k-$207k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
8+ YOETS/SCI clearance with polygraph eligibility, 8+ years systems/software engineering with architecture leadership, experience with large distributed cloud-native systems, SAFe, APIs, and strong stakeholder communication.
SAFe, APIs
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Senior System Architect
Denver or Springfield or Sterling or St. Louis
$99k-$207k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
8+ YOETS/SCI clearance required, bachelor's in CS/Engineering or equivalent, 8+ years systems/software engineering with architecture leadership, experience with cloud-native distributed systems, Agile/SAFe environments, strong communication.
Agile, SAFe
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2mo
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Senior AI Architect
Dallas or Vermont or Maryland or Rhode Island or Nebraska or Georgia or Florida or Pennsylvania or Virginia or Utah or New Mexico or Louisiana or Michigan or Colorado or Massachusetts or Illinois or Connecticut or Washington or Oklahoma or Indiana or Missouri or Ohio or Tennessee or Oregon or Delaware or Minnesota or Maine or Washington or South Dakota or Mississippi or North Dakota or California or New Hampshire or Iowa or Wyoming or Arkansas or Kentucky or Alabama or New York or Montana or New Jersey or West Virginia or South Carolina or Arizona or Wisconsin or Nevada or Kansas or North Carolina or Hawaii or Alaska or Texas or Idaho
$204k-$280k/yr HybridFull Time
o9 Solutions
o9 Solutions: AI-powered enterprise planning platform helping global companies coordinate supply chains, finance, and operations.
15+ YOE15+ years engineering experience building production-grade AI/ML systems; expertise with LLMs, embeddings, vector architectures, and constraint-based planning; proven principal/lead architect experience and strong autonomy.
Large language models (LLMs), vector databases, Enterprise Knowledge Graph, constraint-based planning engines
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Senior Architect
Pennsylvania or Maryland or Washington or North Carolina or Louisiana or Kentucky or Kansas or Indiana or Illinois or Georgia or Iowa or Florida or Colorado or California or Delaware or Connecticut or Arkansas or Arizona or Alabama or Alaska or Nevada or Vermont or Tennessee or Idaho or Oklahoma or Hawaii or Mississippi or Utah or New Hampshire or New Mexico or Wyoming or North Dakota or South Dakota or Rhode Island or West Virginia or Montana or Texas or District of Columbia or Ohio or New Jersey or Oregon or South Carolina or Missouri or Virginia or Massachusetts or Nebraska or Minnesota or Michigan or Wisconsin or New York or Maine
$103k-$165k/yr RemoteFull Time
Engen
Engen: Home-automation gateway software controlling Z-Wave switches, lights, and other devices for computer and browser users.
5+ YOEUS citizen required. Bachelor's in IT/CS, 5+ years IT and business experience, expertise in distributed systems, cloud (GCP/Cloud Run), security, observability, messaging, and experience mentoring engineers.
Gemini Enterprise for Customer Experience (GECX), Genesys, Google Dialogflow, Cloud Run, GCP, Typescript, Node.js, Terraform, JIRA, DB2, PEGA, Java, JavaScript, SAS, Oracle, Teradata, C++, HTML5, JSON, Hadoop, SQL
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Senior Payments Architect
Saint Louis, Missouri, United States
$92k-$203k/yr OnsiteFull Time
Perficient
Perficient: Private global digital consultancy providing AI, technology, and digital transformation services to enterprises.
Design and own payment platform architecture, lead integrations with PSPs/acquirers and banks, ensure ledger correctness, embed PCI-compliant security, and guide teams on resilient distributed payment systems.
Spreedly, Gr4vy, Primer, BR-DGE, AWS, GCP, Azure, Kafka
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Systems Architect, Senior Advisor
St. Louis or Springfield
$146k-$234k/yr OnsiteFull Time
Peraton
Peraton: Provider of mission-critical national security technologies and services.
18+ YOEBachelor's degree and 18+ years in systems engineering, integration, or development. Requires TS/SCI or ability to obtain SCI and pass a polygraph; government acquisition and architecture experience required.
SAFe Agile
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Project Architect
St. Louis or Wichita or Kansas City or Tulsa or Oklahoma City or Arkansas
HybridFull Time
HFG Architecture
HFG Architecture: Private healthcare architecture firm designing hospitals, clinics, elder residences, and other medical facilities for healthcare clients.
5+ YOEProfessional architecture degree, licensed architect or licensure within 12 months, 5–10 years’ experience, Revit proficiency, and knowledge of building systems, detailing, construction methods, and regulatory codes.
Revit, Bluebeam, Rendering Structure, Microsoft Office, International Building Code (IBC), NFPA, FGI Guidelines, ADA, ABA
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2w
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Systems Architect, Senior Advisor
St. Louis or Springfield
$146k-$234k/yr OnsiteFull Time
Peraton
Peraton: Provider of mission-critical national security technologies and services.
18+ YOEBachelor's degree or related technical experience, 18+ years in systems engineering, integration, or development, government acquisition and architecture experience, CONOPS documentation, and TS/SCI or ability to obtain SCI and pass a polygraph.
SAFe Agile, CONOPS, Integrated Capabilities Baseline Document (ICBD), AoAs, Go/No-Go
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Senior Enterprise Architect (Digital Engineering)
Springfield or St. Louis
$130k-$190k/yr HybridFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Engineering services and technology solutions for national security.
15+ YOEBachelor's in systems engineering, computer science, or related field, or equivalent experience; 15+ years in enterprise architecture or systems engineering; U.S. citizenship; active TS/SCI; UAF and SysML expertise.
UAF, SysML, Cameo Enterprise Architect, Teamwork Cloud, SysMLv2, Microsoft Visual Studio Code, SysIDE, IBM DOORS Next, Syndeia, AFSIM, STK, Unreal Engine, ArcGIS
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Senior Enterprise Architect (Digital Engineering)
Springfield or St. Louis
$130k-$190k/yr OnsiteFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Engineering services and technology solutions for national security.
15+ YOEBachelor's degree or equivalent experience, 15+ years in enterprise architecture or systems engineering, UAF and SysML expertise, MBSE/MBEA knowledge, and active TS/SCI clearance with CI polygraph eligibility.
UAF, SysML, Cameo Enterprise Architect, Teamwork Cloud, SysMLv2, Visual Studio Code, SysIDE, IBM DOORS Next, Syndeia, AFSIM, STK, Unreal Engine, ArcGIS
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Senior AI Security Technical Architect
Tempe or St. Louis
HybridFull Time
Edward Jones
Edward Jones: Financial services firm providing wealth management and investment advice.
12+ YOEBachelor’s degree or equivalent practical experience; 12+ years in cybersecurity engineering or architecture, 4+ years securing AI/ML systems, cloud security expertise, and strong enterprise leadership and communication skills.
NIST AI Risk Management Framework (AI RMF), MITRE ATLAS, CIS, ISO 27001, Azure, AWS, GCP, LLM, Retrieval-Augmented Generation (RAG), Zero Trust, FINRA
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Software Architect
Rothschild or Alabama or Arkansas or Arizona or Colorado or Florida or Georgia or Illinois or Indiana or Kentucky or Louisiana or Maryland or Michigan or Minnesota or Missouri or Mississippi or North Carolina or New Jersey or Nevada or New York or Ohio or Oklahoma or Oregon or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin
$168k-$180k/yr RemoteFull Time
Foundation Finance Company
Foundation Finance Company: Private consumer finance providing point-of-sale home-improvement financing to contractors and homeowners nationwide.
10+ YOEBachelors in CS or related,10+ years software experience,5+ years designing enterprise systems,experience with cloud,CI/CD,and stakeholder collaboration; strong technical leadership and architecture skills.
Microsoft Office
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Senior AI Security Technical Architect
Tempe or St. Louis or Arizona or Missouri or United States
HybridFull Time
Edward Jones
Edward Jones: Financial services firm providing wealth management and investment advice.
12+ YOEBachelor's degree or equivalent experience; 12+ years in cybersecurity engineering/architecture; 4+ years securing AI/ML systems; experience with LLMs, RAG, ML pipelines, cloud security (Azure/AWS/GCP); strong communication and enterprise influence skills.
Azure, AWS, GCP, NIST AI Risk Management Framework (AI RMF), MITRE ATLAS, CIS, ISO 27001, LLM, Retrieval-Augmented Generation (RAG), vector databases
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Solution Architect
Saint Louis, Missouri, United States
$117k-$151k/yr HybridFull Time
Safety National
Safety National: Specialty insurance and reinsurance provider serving commercial, public-entity, and self-insured customers nationwide.
7+ YOEBachelor's degree or equivalent experience, 7+ years in solution architecture or related discipline, experience with C4 diagrams, cloud (Microsoft Azure) familiarity, system integration and APIs, strong communication and problem-solving, U.S. work authorization required.
C4, Microsoft Azure, CI/CD, infrastructure-as-code, containerization, observability, SAFe, TOGAF
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3w
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^Technology Architect - 6426622
St. Louis or Bentonville or California or Cleveland or Colorado or District of Columbia or Illinois or Maine or Maryland or Massachusetts or Minnesota or New York or New Jersey or Virginia or Washington
$70-$80/hr OnsiteFull Time, Temporary
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
10+ YOERequires 10+ years in application architecture and Java, 5+ years in distributed systems, 3+ years in event-driven systems, 10+ years in RDBMS, and 1+ year using Claude Code or Codex.
Claude Code, Codex, SQL, Java, Spring Boot, Azure, Kafka, RDBMS, Microsoft Excel
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5d
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Solutions Architect #1400007
Jefferson City, Missouri, United States
$70k-$91k/yr OnsiteFull Time
Office of Administration
Office of Administration: Missouri government agency providing centralized administrative, financial, personnel, technology, facilities, and procurement services to state agencies.
Requires systems analysis, technical communication, project management, planning, data architecture, cloud architecture, problem-solving, and consensus-building skills. Successful background check required.
Veracode, SSL/TLS
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Lead Application Architect
San Francisco or St. Louis or Cleveland or Philadelphia or Chicago or New York City or Kansas City or Boston or Atlanta or Minneapolis or Dallas or Richmond
$164k-$263k/yr OnsiteFull Time
Federal Reserve Bank of San Francisco
Federal Reserve Bank of San Francisco: The U.S. central banking system sets monetary policy, supervises banks, and provides payment services.
10+ YOEExtensive Saviynt or SaaS IGA experience, 10+ years in IAM/IGA, strong cybersecurity and systems engineering, Saviynt certification required (or obtain after hire), bachelor’s required, excellent communication and leadership.
Saviynt, REST, SCIM, JDBC, LDAP, SOAP, SQL, Microsoft Entra ID, Active Directory, AWS, Azure, Google Cloud
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Solutions Architect-4160942
Alabama or Arizona or Colorado or Connecticut or District of Columbia or Delaware or Georgia or Hawaii or Iowa or Illinois or Indiana or Kansas or Louisiana or Massachusetts or Maine or Maryland or Michigan or Minnesota or Missouri or Montana or New Jersey or North Carolina or Ohio or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Utah or Virginia or Vermont or West Virginia or Wisconsin
$160k-$180k/yr RemoteFull Time
TCG
TCG: Certified B providing IT and management advisory services to U.S. federal government agencies.
10+ YOE10+ years systems engineering experience with 3+ years solutions architecture; federal real estate/GSA experience; stakeholder collaboration; metrics and data analysis; US citizenship and background investigation required.
BM Trirega, IBM Maximo, Kahua, Salesforce, Appian, Databricks, ArcGIS, Uptick
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2mo
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Solution Architect- ArcGIS
Vienna or St. Louis or Washington
$121k-$198k/yr OnsiteFull Time
Esri
Esri: Global leader in geographic information system (GIS) software.
8+ YOERequires 8+ years in GIS platform architecture, ArcGIS Enterprise experience, cloud and high-performance system design, Top Secret/SCI clearance, US citizenship, bachelor's degree in a STEM field, and strong communication and leadership skills.
ArcGIS Enterprise, ArcGIS, Oracle, Microsoft SQL, Windows, Linux, Python, JavaScript, HTML5, AWS
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Workday Solution Architect Manager
Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek or United States
$80k-$266k/yr RemoteFull Time
Accenture
AccentureNYSE: ACN: Global professional services delivering 360° value.
5+ YOERequires 5+ years in technology environments, 3+ years delivering Workday ERP systems, a bachelor's degree or equivalent experience, solution architecture expertise, and strong client communication skills.
Workday, Workday HCM, Workday Payroll, Workday Finance, Workday Inventory, Electronic Medical Records (EMR)
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