1,756 Results for

Software Engineer Jobs in Hazelwood, MO

Jobs

Substation Project Engineer - AI & Automation Leidos Holdings Inc

Remote

$87,100–$157,450 / year

Utilities and mobile operators rely on our Power Delivery Services Team for reliable power and telecommunication expertise, as reflected through our work with more than 50 investor-owned utilities, more than 160 municipals/cooperatives, as well as a growing number of mobile operators, local utility providers and private developers. In addition to providing engineering and project management services, Leidos works with an established group of industry-leading construction partners delivering meaningful Energy Delivery Solutions.

30+ days ago

Power Systems Studies Engineer II Asplundh Power

Overland, Missouri

Full time

At Electric Power Systems, we specialize in electrical acceptance testing, commissioning, and maintenance testing for a wide range of clients including Utility, Generation, Renewables, Industrial, Transit, Data Centers, and Commercial Facilities throughout North America. The Power Systems Studies Engineer II works on project teams to deliver high-quality power system analysis and engineering solutions for utility, industrial, commercial, and renewable energy facilities.

24 days ago

Civil Engineer Project Manager Farnsworth Group

Saint Louis, Missouri

Ability to lead multiple projects simultaneously and coordinate efforts with support groups ensuring a quality, on-time product for our clients, and financially successful projects. For ten consecutive years, we’ve been certified as a Great Place to Work®, and our engineers, architects, surveyors, and scientists channel their passion and expertise into making meaningful contributions to the world around us.

30+ days ago

Electrical Project Engineer Farnsworth Group Inc

St. Louis, MO

This role blends advanced design capability with project leadership, client coordination, and mentorship responsibility, and is expected to drive high-quality delivery across multiple concurrent assignments. For ten consecutive years, we've been certified as a Great Place to Work, and our engineers, architects, surveyors, and scientists channel their passion and expertise into making meaningful contributions to the world around us.

30+ days ago

Electrical Engineer The Korte Co

St. Louis, MO

GROWTH OPPORTUNITIES This role is part of the Electrical Management Career Path, and team members benefit from a structured Professional Development Plan (PDP) designed to support career growth. This is an excellent opportunity for an experienced mechanical professional looking to grow into a future Electrical Design Manager role within a collaborative, nationwide design-build firm.

22 days ago

Transportation Project Engineer I/II Gonzalez Companies

St. Louis, Missouri

$30–$55 / hour

Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. Working primarily in the Greater St. Louis, Chicago, and Louisville metro areas, Gonzalez offers a great work environment, generous benefit packages, and opportunities to succeed in many professional disciplines.

30+ days ago

Senior Mechanical Engineer Clayco Inc

St. Louis, MO

With $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. The Senior Mechanical Engineer will lead the mechanical design of projects, provide technical expertise, and ensure the successful delivery of engineering solutions for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-availability environments.

30+ days ago

Civil or Mechanical Engineer - Entry Level Farnsworth Group

Saint Louis, Missouri

For ten consecutive years, we’ve been certified as a Great Place to Work®, and our engineers, architects, surveyors, and scientists channel their passion and expertise into making meaningful contributions to the world around us. Complete site visits including but not limited to surveying, locating, and documenting existing conditions (may include overnight travel depending on job location).

30+ days ago

Senior P&C Engineer Mesa Associates

Edwardsville, Illinois

This will include single line diagrams, three line diagrams, panel layouts, AC & DC schematics, equipment and switchboard wiring diagrams, bill of material, vendor drawings, and logic diagrams using AutoCAD and Bluebeam design software. Preferred but not required experience in relay settings and calculations for bus, transformer, motor, feeder, and bus protection schemes with a focus on SEL, Beckwith, Basler and GE relays.

10 days ago

Entry Level Substation Engineer GFT Infrastructure Inc

St. Louis, MO

$75,000–$85,000 / year

In this capacity, the successful candidate will be responsible for the following: Assist with the development of 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.

30+ days ago

NeoLoad Performance Test Engineer CACI

O'fallon, Illinois

NeoLoad Script Development: Design, build, parameterize, correlate, and maintain reusable NeoLoad scripts, workloads, test data, and execution profiles for SAP Fiori, web applications, APIs, and supported enterprise interfaces. Performance Test Execution: Plan and execute baseline, load, stress, spike, endurance, and scalability tests; simulate realistic concurrent users, transaction mixes, and peak transportation workloads.

8 days ago

Data Test Engineer CACI

Scott AFB, Illinois

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Interface and Integration Testing: Validate inbound and outbound data exchanged among SAP S/4HANA, SAP Fiori, Mendix applications, interfaces, and external systems, including error handling and exception processing.

10 days ago

Systems Engineer SME Leidos Holdings Inc

St. Louis, MO

$131,300–$237,350 / year

You'll also be expected to provide feedback to the system technical development leads and test engineers to make the software and testing more effective and reliable and maintain system documentation and make presentations to end users and Government managers. This is a high impact leadership role for an engineering expert who enjoys solving enterprise-scale challenges, influencing technical strategy, and mentoring high-performing engineering teams.

27 days ago

Network Engineer III Leidos Holdings Inc

Shiloh, IL

$73,450–$132,775 / year

Assess, identify and recommend resolutions to various network incidents and/or deficiencies leveraging knowledge in one or more of following: routers, switches, crypto devices, routing, CISCO, Juniper, MSPP, optical transport network, MPLS, time division multiplexing, SDH/SONET. The Digital Sector of Leidos has multiple openings in our Joint Fires Network (JFN) NOC for a Network Engineer III supporting our Global Solutions Management-Operations II (GSMO-II) program at Scott AFB, IL.

30+ days ago

Cybersecurity Engineer - Network Security Tools CACI

Saint Louis, Missouri

$75,200–$158,100 / year

Job Title: Cybersecurity Engineer - Network Security ToolsJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * The Opportunity . Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

30+ days ago

Azure Cloud Engineer IQUASAR LLC

St. Louis, MO

Full time

2+ years' experience with developing ETL pipelines in Azure using tools such as Azure Data factory, Event hubs, Event grid, Azure functions, 2+ years developing data engineering pipeline with Databricks or Spark. iQuasar LLC is a proud partner of the Military Spouse Employment Partnership (MSEP) and the Virginia Values Veterans (V3) Program , reflecting our strong commitment to supporting military spouses, veterans, and inclusive hiring practices.

30+ days ago

Crypto Engineer T3 CACI

Saint Louis, Missouri

$75,200–$158,100 / year

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Job Title: Crypto Engineer T3Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * The Opportunity .

30+ days ago

Integrations Engineer Clayco Inc

St. Louis, MO

With $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations.

22 days ago

Intern - Quality Engineer Affinegy Inc. (Inactive)

Lake St. Louis, MO

Are you ready for an internship that not only lets you work on real projects and gain authentic job experience but also has an impact on a cooperative that is helping to provide power and communications to millions of homes across the country? NISC develops and implements enterprise-level and customer-facing software solutions for over 1,200+ energy cooperatives and communication organizations across North America.

30+ days ago

Sr Radar Optimization Engineer Leidos Holdings Inc

$131,300–$237,350 / year

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

30+ days ago

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Software Engineer Jobs in Hazelwood, MO

Substation Project Engineer - AI & Automation Leidos Holdings Inc

Power Systems Studies Engineer II Asplundh Power

Civil Engineer Project Manager Farnsworth Group

Electrical Project Engineer Farnsworth Group Inc

Electrical Engineer The Korte Co

Transportation Project Engineer I/II Gonzalez Companies

Senior Mechanical Engineer Clayco Inc

Civil or Mechanical Engineer - Entry Level Farnsworth Group

Senior P&C Engineer Mesa Associates

Entry Level Substation Engineer GFT Infrastructure Inc

NeoLoad Performance Test Engineer CACI

Data Test Engineer CACI

Systems Engineer SME Leidos Holdings Inc

Network Engineer III Leidos Holdings Inc

Cybersecurity Engineer - Network Security Tools CACI

Azure Cloud Engineer IQUASAR LLC

Crypto Engineer T3 CACI

Integrations Engineer Clayco Inc

Intern - Quality Engineer Affinegy Inc. (Inactive)

Sr Radar Optimization Engineer Leidos Holdings Inc

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