Principal project engineer Manpower EngineeringPrincipal project engineerSt. Louis, MOTemporaryp> ManpowerGroup® (NYSE: MAN), the leading global workforce solutions company, helps organizations transform in a fast-changing world of work by sourcing, assessing, developing, and managing the talent that enables them to win. We are recognized consistently for our diversity - as a best place to work for Women, Inclusion, Equality and Disability and in 2022 ManpowerGroup was named one of the World's Most Ethical Companies for the 13th year - all confirming our position as the brand of choice for in-demand talent.
Principal Database Architect Data Platforms ApolisPrincipal Database Architect Data PlatformsSt. Louis, MO$55–$60 / hourWe are seeking a highly experienced Principal Database Architect / Senior Oracle Database Engineer to design, engineer, and operate enterprise database platforms while driving modernization, automation, cloud adoption, and database transformation initiatives . The ideal candidate will serve as a technical leader and subject matter expert across Oracle database platforms, contributing to enterprise database strategy while ensuring scalability, reliability, security, performance, and cost optimization.
PRINCIPAL PROJECT ENGINEER LancesoftPRINCIPAL PROJECT ENGINEERSt. Louis, MO$85Experience with life science capital projects design and build of clean rooms and classified (grade C/D) spaces and qualification and validation processes. Provide senior-level project engineering and technical expertise to ensure successful project delivery of life science projects.
Principal Product Manager Radiology Pacs - Remote UnitedHealth Group Inc.Principal Product Manager Radiology Pacs - RemoteSaint Louis, MORemote$112,700–$193,200 / yearThis role will drive the transformation of radiology imaging workflows by delivering scalable, secure, and AI-enabled solutions that improve radiologist productivity, enhance clinical outcomes, and support enterprise-wide imaging strategies. Serve as the subject matter expert for radiology imaging workflows across outpatient imaging centers, community hospitals, and large integrated delivery networks.
Principal Transmission Engineer FindTalentPrincipal Transmission EngineerUniversity City, MissouriThe ideal candidate will have a strong understanding of transmission systems, as well as experience in the design, construction, and maintenance of transmission lines. Work with other engineers, contractors, and stakeholders to ensure the successful completion of projects.
Principal Engineer - Systems Enterprise HoldingsPrincipal Engineer - SystemsSt. Louis, MissouriRemoteFull timeWTT responsibilities include physical and virtual devices (desktops/laptops, tablets, payment, printers, virtual workstations, etc.), workforce/productivity applications (email, unified communications, collaboration, etc.), identity solutions (Active Directory, Entra, AppSec, etc.), security capabilities (endpoint protection, secure coding tools, risk database, etc.), and related applications (AppSec, Startup Page, etc.). Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.
Principal Fire Protection Engineer SOLV Energy LLCPrincipal Fire Protection EngineerMORemote$144,963–$173,956 / yearIn addition, candidate introductions or resumes can only be submitted to our internal talent acquisition recruiting team if a signed vendor agreement is already on file and the third-party recruiter or agency has received formal instructions from our internal talent acquisition team to submit candidates for a particular job posting. Proven experience working with Authorities Having Jurisdiction (AHJs), including fire marshals and code officials, to secure approvals, ensure regulatory compliance, and successfully navigate permitting, design review, and inspection processes for complex fire protection systems.
Principal Engineer Systems Enterprise Holdings IncPrincipal Engineer SystemsSt. Louis, MORemoteWTT responsibilities include physical and virtual devices (desktops/laptops, tablets, payment, printers, virtual workstations, etc.), workforce/productivity applications (email, unified communications, collaboration, etc.), identity solutions (Active Directory, Entra, AppSec, etc.), security capabilities (endpoint protection, secure coding tools, risk database, etc.), and related applications (AppSec, Startup Page, etc.). Enterprise Mobility and its affiliates offer extensive car rental, carsharing, truck rental, fleet management, retail car sales, as well as travel management and other transportation services, to make travel easier and more convenient for customers.
Principal Technical Business Analyst London Stock Exchange Group PlcPrincipal Technical Business AnalystSt. Louis, MOWith extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, handle risk and create jobs. Through a comprehensive suite of trusted financial market infrastructure services - and our open-access model - we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.
Principal Instructor - ArcGIS Enterprise EsriPrincipal Instructor - ArcGIS EnterpriseSaint Louis, MissouriDevelop and deliver training programs through various formats and methods including in-person, virtual and hybrid offerings, to enhance users' proficiency in ArcGIS software both domestically and internationally. The work you do will enable customers to grow their ArcGIS user skills, productivity, and confidence in addition to ensuring sustainable GIS workflows and operations.
Principal Software Developer Kafka Leidos Holdings IncPrincipal Software Developer KafkaMO$131,300–$237,350 / yearResponsibilities: Architect, design, develop, and implement next-generation application using software engineering best practices in the latest technologies: AI-Leveraged Development (agentic coding tools like Claude Code, multi-agent orchestration, MCP-based tool integration, RAG, context engineering, AI evals/guardrails). 3+ years of combined hands-on experience designing, developing, and supporting Apache Kafka or other streaming data solutions in production environments, including event-driven architectures, topic design, scalability, reliability, and performance optimization.
NewSnowflake Partner Solution Lead - Senior Principal - Central Region Slalom IncSnowflake Partner Solution Lead - Senior Principal - Central RegionSt. Louis, MORepresenting a Snowflake Elite Services Partner and 7-time Snowflake Partner of the Year, you will act as a senior technical and commercial authority at the intersection of partner strategy, solution leadership, and global go-to-market execution. You will be a trusted advisor to Snowflake, Slalom leadership, and our clients-bringing deep technical expertise, a strong point of view, and the ability to translate Snowflake's platform capabilities into compelling business outcomes.
NewDatabricks Partner Solution Lead - Senior Principal Central Region Slalom IncDatabricks Partner Solution Lead - Senior Principal Central RegionSt. Louis, MOBring Databricks Platform Expertise: Advise clients on modern Databricks capabilities including Unity Catalog, Lakeflow, Delta Lake, Apache Iceberg interoperability, Databricks SQL, AI/BI, Genie, Mosaic AI, Agent Bricks, Model Serving, Vector Search, MLflow, Databricks Apps, and Lakebase. As a Databricks Partner Solution Lead, you will sit at the intersection of Slalom's Databricks business unit, regional sales teams, industry leaders, solution architects, and Databricks partner teams.
NewPrincipal Model-Based Systems Engineer Rite-Solutions IncPrincipal Model-Based Systems EngineerSaint Louis, MOAs an on-site Principal Model-Based Systems Engineer, you will act as the subject matter expert in model management, administering and maintaining a federated set of SysML models in Teamwork Cloud (TWC) across multiple classification levels. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.
Principal Project Engineer – Life Sciences Pyramid, IncPrincipal Project Engineer – Life SciencesSt. Louis, MO$90–$120 / hourFull timeKey Responsibilities: The client is looking for a senior-level Principal Project Engineer with strong Life Sciences/Pharmaceutical facility project execution experience , rather than a purely design-focused engineer. Provide senior-level project engineering and technical expertise to ensure successful project delivery of life science projects.
AI Principal Engineer Voya Financial IncAI Principal EngineerMO$149,820–$198,370 / yearIn addition to base salary, Voya offers incentive opportunities (i.e., annual cash incentives, sales incentives, and/or long-term incentives) based on the role to reward the achievement of annual performance objectives. Profile Summary: The AI Principal Engineer (IC Director) role is responsible for leading the design and delivery of complex, production-grade AI systems with significant business impact.
Principal Substation Engineer GFT Infrastructure IncPrincipal Substation EngineerSt. Louis, MORemote$147,000–$175,000 / yearIn this capacity, the successful candidate will be responsible for the following: Develop substation layout drawings including, plan and elevations, yard layouts, grounding, grounding details, raceway, raceway details, control building layouts, cable lists, and material lists on new and existing substations. Our team excels in providing solutions for power transmission, distribution, and renewable energy, utilizing advanced technologies and creative problem-solving to meet today's diverse energy needs.
Principal EHV Transmission Line Engineer GFT Infrastructure IncPrincipal EHV Transmission Line EngineerSt. Louis, MORemote$145,000–$200,000 / yearWhat you'll be challenged to do: As a Principal EHV Transmission Line Engineer, you will lead and oversee transmission line project designs, serving as a subject matter expert in transmission line engineering. Our team excels in providing solutions for power transmission, distribution, and renewable energy, utilizing advanced technologies and creative problem-solving to meet today's diverse energy needs.
Principal Human Factors Engineer Monterey TechnologiesPrincipal Human Factors EngineerSt. Louis, MissouriProvide human factors design, development, analysis, and evaluation for all aspects of the system across the lifecycle Your Experience: • A bachelor’s degree in Human Factors Engineering, Industrial Engineering, Psychology, or a related field. • Lead and oversee documentation efforts such as Human Engineering Design Approach Documents (HEDADs), Critical Task Analysis (CTA) reports, project briefings, test results, etc.
Principal Process Engineer - API + OSD Barry-WehmillerPrincipal Process Engineer - API + OSDSaint Louis, MO$170,000–$240,000 / yearResponsible as leading expert for Active Pharmaceutical Ingredients (APIs) and/or Oral Solid Dose (OSD) processing operations, regulatory guidance trends, evolving technology innovations, OEM supplier community partner, recognized industry expert through published/presented thought leadership and for launching and nurturing lifecycle client programs. Understanding and development of process construction documents including piping & instrument diagrams (P&IDs), equipment general arrangement drawings, piping plans inclusive of orthographic and isometric drawings, operator access platform and equipment support drawings, line lists, tie-in lists, installation specifications, bills of material (BOM), scopes of work, etc.