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Test Software Development Engineer jobs in saint louis USA

72 test software development engineer jobs found in saint louis: showing 1 - 50

Senior C++ Software Engineer
Company: London Stock Exchange Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 22 Aug 2026
to identify bottleneck and make improvements. What You will Bring: 5+ years of full life-cycle software development experience... to thoroughly test and debug code using test driven development. Ability to suggest/research new technologies and quickly adapt
Senior Ui/ux Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$107900 - 195050 per year | Date posted: 22 Aug 2026
and data more effectively. As a Sr. UI/IX Engineer, you will play a critical role at the intersection of user experience..., interface engineering, design, and mission needs. Youll work alongside talented software engineers, systems engineers, product
Senior Ui/ux Engineer
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$107900 - 195050 per year | Date posted: 22 Aug 2026
and data more effectively. As a Sr. UI/IX Engineer, you will play a critical role at the intersection of user experience..., interface engineering, design, and mission needs. Youll work alongside talented software engineers, systems engineers, product
Senior Ui/ux Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$107900 - 195050 per year | Date posted: 22 Aug 2026
and data more effectively. As a Sr. UI/IX Engineer, you will play a critical role at the intersection of user experience..., interface engineering, design, and mission needs. Youll work alongside talented software engineers, systems engineers, product
Cx Technology Engineer
Company: Enterprise Rent-A-Car |

Location: Saint Louis, MO, USA

| Salary: US$81100 per year | Date posted: 22 Aug 2026
for the position of CX Technology Engineer! ABOUT THE ROLE The CX Technology Engineer designs, develops, implements... also advises on cloud technology strategy supporting the analysis and development process for new technology or changes in the
Senior Sit Engineer - Firmware & Hardware)
Company: Hubbell |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 20 Aug 2026
, reliability, performance, and interoperability across the full System Development Life Cycle (SDLC). The engineer plays a critical...Job Overview The Senior SIT Engineer (Firmware & Hardware) is responsible for leading system integration testing
Field Service Engineer - St. Louis
Company: Accuray |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 20 Aug 2026
treatment delivery systems and software that will give new hope and new health to cancer patients and cancer survivors... to live longer, better lives. Job Description LOCATION: The Field Service Engineer will work remotely out of the St. Louis
Lead Data Engineer
Company: Infosys |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 19 Aug 2026
Implement test strategies, analyse results, and coordinate bug fixes to uphold the software quality standards Develop user... provided Facilitate software application design discussions, and document design decisions to guide the technical team
Engineer Operational Technology
Company: Peabody Energy |

Location: Saint Louis, MO, USA

| Salary: US$67000 - 82000 per year | Date posted: 19 Aug 2026
About the role: We are currently seeking an Operations Technology Engineer. The OT Engineer will assume... responsibilities for development, configuration, systems administration and support for existing and future OT technologies
Engineering Technician Co-op
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 18 Aug 2026
acquisition methods. Support the development and execution of test procedures for accredited motor testing. Assist in creating... using Excel and other software platforms. Prepare technical reports and communicate test results to engineering teams
Senior Software Development Engineer In Test (sdet)
Company: London Stock Exchange Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 18 Aug 2026
throughout the software development lifecycle. Participate in test planning, test design, estimation, execution, and release... Robot Framework and Gherkin/Cucumber. Strong understanding of software testing methodologies, test build techniques
Senior Platform Engineer
Company: London Stock Exchange Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 18 Aug 2026
Design, develop, implement, and support LOCP platform capabilities across development, test, and production environments... metrics, logging, tracing, monitoring, alerting, and dashboarding. Software engineering and automation development using Go
Application Security Engineer Iv - Ai Harness
Company: Edward Jones |

Location: Saint Louis, MO - Tempe, AZ, USA

| Salary: unspecified | Date posted: 17 Aug 2026
Recruiter Anne Schwabe Opportunity Overview Team Overview: The Application Security Engineer, Agentic Secure... Code Harness Engineer is a hands-on role responsible for operating, monitoring, and improving an AI-enabled AppSec harness
Imaging Service Engineer Iii
Company: Tri-Imaging |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 14 Aug 2026
advanced diagnostics utilizing OEM software, engineering documentation, service manuals, specialized electronic test equipment..., OEM service applications, and advanced diagnostic software.Equipment & TechnologyThe Imaging Service Engineer III
Mes Engineer
Company: Actalent |

Location: Saint Louis, MO, USA

| Salary: US$61 per hour | Date posted: 13 Aug 2026
and enhancements to existing MES applications, using modern software development methodologies. Work as an active member of an agile.../scrum development team to plan, build, test, and deliver MES features from the product backlog. Provide technical support
Senior Platform Engineer
Company: London Stock Exchange Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 12 Aug 2026
across development, test, and production environments. Build and maintain platform services using Infrastructure as Code, automation... and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates
Senior Test Automation Engineer
Company: Enterprise Rent-A-Car |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 12 Aug 2026
(Insurance Services) department for an Engineer 2, Test Automation. The Risk Management team is focused on the development... and objectives. As an Engineer 2, Test Automation, youll play a key role in ensuring software quality through a unique blend
Chemical Engineer 5
Company: CDM Smith |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 11 Aug 2026
and drafting (CADD) 3D and 4D software and practices. Expert Knowledge of engineer principles of design. Expert Knowledge..., progressive and inclusive work environment which fosters personal leadership, career growth and development for every employee
Expert Systems Engineer - Geomatics
Company: Peraton |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 11 Aug 2026
requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test... components, which may include providing hands-on software engineering support for various applications. Provide Cross
Environmental Engineer 5
Company: CDM Smith |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 07 Aug 2026
and drafting (CADD) 3D and 4D software and practices. Expert Knowledge of engineer principles of design. Expert Knowledge..., progressive and inclusive work environment which fosters personal leadership, career growth and development for every employee
Mechanical Engineer Ii
Company: Safe Fleet |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 06 Aug 2026
JOB SUMMARY The Mechanical Engineer II is responsible for the design, development, documentation, test..., performance & schedule requirements. Create new vehicle-specific parts and test fitting parts onto cars, trucks
Mechanical Engineer I
Company: Safe Fleet |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 06 Aug 2026
JOB SUMMARY The Mechanical Engineer I is responsible for the design, development, documentation, test, and evaluation..., performance & schedule requirements. Creating new vehicle-specific parts and test fitting parts onto cars, trucks
Senior Test Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$107900 - 195050 per year | Date posted: 06 Aug 2026
looking for a passionate Senior Test Engineer to join the Chinook Program to support one of our customers applications, a critical capability... Responsibilities: Lead planning, design, development, and execution of comprehensive test strategies. Develop and maintain automated
Systems Engineer Sme
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$131300 - 237350 per year | Date posted: 06 Aug 2026
with other systems. Youll also be expected to provide feedback to the system technical development leads and test engineers to make.... Proficient in Python or C++ software development, automation, and system support. Experience working with Linux operating
Systems Engineer Sme
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$131300 - 237350 per year | Date posted: 06 Aug 2026
with other systems. Youll also be expected to provide feedback to the system technical development leads and test engineers to make.... Proficient in Python or C++ software development, automation, and system support. Experience working with Linux operating
Senior Test Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$107900 - 195050 per year | Date posted: 06 Aug 2026
looking for a passionate Senior Test Engineer to join the Chinook Program to support one of our customers applications, a critical capability... Responsibilities: Lead planning, design, development, and execution of comprehensive test strategies. Develop and maintain automated
Systems Engineer Sme
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$131300 - 237350 per year | Date posted: 06 Aug 2026
with other systems. Youll also be expected to provide feedback to the system technical development leads and test engineers to make.... Proficient in Python or C++ software development, automation, and system support. Experience working with Linux operating
Senior Test Engineer
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$107900 - 195050 per year | Date posted: 06 Aug 2026
looking for a passionate Senior Test Engineer to join the Chinook Program to support one of our customers applications, a critical capability... Responsibilities: Lead planning, design, development, and execution of comprehensive test strategies. Develop and maintain automated
Project Engineer
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 06 Aug 2026
Project Engineer is responsible for overseeing and managing all technical aspects associated with the development of products... products. The Project Engineer will lead a team of engineers and other professionals to ensure timely completion and high
Embedded Software Engineer, Electronics Engineering
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 05 Aug 2026
requirements (e.g., Class B software per UL 60730) Write design documentation (control strategies, architecture), test plans..., and validation reports Establish and lead processes for managing embedded motor control software across development, validation
Systems Engineer - Drive Sys. Solutions
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 05 Aug 2026
Systems Engineer Drive System Solutions is responsible for supporting the design, integration, validation, and deployment... Management in executing development timelines and deliverables Partner with Sales and Solutions Engineering teams to support
Test Lab Engineer Co-op
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 05 Aug 2026
organization, and each location maintains its individual personality. The Test Lab Engineer Co-Op will support hardware.... Assist engineers and technicians with various software and hardware tasks for the test labs. Assemble and modify electronic
Software Engineer Co-op
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 04 Aug 2026
and verification of both PC based and embedded software Develop PC based software for both in house development group use.... Support engineer on purchasing electronic components, test equipment and mechanical parts. Support electronic lab activities
Software Engineer I
Company: Nidec |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 04 Aug 2026
Conditioning group. This position is in St. Louis, MO. The Software Engineer I supports Desktop application development, database... candidates for a Software Engineer I role to support Nidec Motor Corporations Climate Technology Heating Ventilation and Air
Geologist
Company: Hanson Professional Services |

Location: Saint Louis, MO, USA

| Salary: US$63000 - 80000 per year | Date posted: 04 Aug 2026
Services Inc. is seeking a candidate for a Geologist or Geological Engineer to be part of our Railway Market Unit. The location..., coordination and supervision of drilling and laboratory test contractors, construction observations, and other duties as assigned
Geologist
Company: Hanson Professional Services |

Location: Saint Louis, MO, USA

| Salary: US$63000 - 80000 per year | Date posted: 04 Aug 2026
Services Inc. is seeking a candidate for a Geologist or Geological Engineer to be part of our Railway Market Unit. The location..., coordination and supervision of drilling and laboratory test contractors, construction observations, and other duties as assigned
Mid-level Software Engineer
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role... contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend
Cloud Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
and development. Resolves architecture implementation issues during integration and test. Provides support directly or through team...Description The Leidos Air Team team has an opening for an experienced AWS Cloud Engineer to work on a cloud
Mid-level Backend Software Engineer
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
a Backend Software Engineer to support a highvisibility, datadriven application used across the organization for analytics... features not routine maintenance tasks Essential Responsibilities Backend Development: Design, develop, test
Mid-level Software Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role... contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend
Mid-level Backend Software Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
a Backend Software Engineer to support a highvisibility, datadriven application used across the organization for analytics... features not routine maintenance tasks Essential Responsibilities Backend Development: Design, develop, test
Mid-level Software Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
Full Stack Software Engineer to join the Chinook Program supporting an Intelligence Community customer. In this role... contribute across the entire software development lifecycle, from crafting intuitive user interfaces to building scalable backend
Mid-level Backend Software Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
a Backend Software Engineer to support a highvisibility, datadriven application used across the organization for analytics... features not routine maintenance tasks Essential Responsibilities Backend Development: Design, develop, test
Cloud Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
and development. Resolves architecture implementation issues during integration and test. Provides support directly or through team...Description The Leidos Air Team team has an opening for an experienced AWS Cloud Engineer to work on a cloud
Cloud Engineer
Company: Leidos |

Location: East Saint Louis, IL, USA

| Salary: US$87100 - 157450 per year | Date posted: 01 Aug 2026
and development. Resolves architecture implementation issues during integration and test. Provides support directly or through team...Description The Leidos Air Team team has an opening for an experienced AWS Cloud Engineer to work on a cloud
Software Engineer – Unifier And Oppm
Company: The Timberline Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 30 Jul 2026
, and development methodologies Design, develop, test, debug, and implement application and software components, tools, and utilities... within a broader software platform, contributing to both maintenance of existing applications and development of new capabilities
Cloud Engineer
Company: Leidos |

Location: Saint Louis, MO, USA

| Salary: US$87100 - 157450 per year | Date posted: 30 Jul 2026
The Leidos Air Team team has an opening for an experienced AWS Cloud Engineer to work on a cloud development... and deployment team. The team is involved in the deployment and maintenance of multiple operational cloud deployed software solutions
Platform Engineer (software/devops)
Company: aqua IT |

Location: Saint Louis, MO - District of Columbia, USA

| Salary: unspecified | Date posted: 28 Jul 2026
such as Terraform, Ansible, or cloud-native alternatives. Support deployments across development, test, staging, and production... Experience with Git-based source control and collaborative software development practices. Experience creating or maintaining
Ivr Qa Automation Engineer- R01568701
Company: Brillio |

Location: Saint Louis, MO, USA

| Salary: US$65 - 70 per hour | Date posted: 27 Jul 2026
, and DevOps teams to ensure high-quality releases across multiple environments throughout the software development lifecycle.... Analyze test failures, identify root causes, and collaborate with development teams to resolve defects. Create and maintain
D365 F&o Architect
Company: The Timberline Group |

Location: Saint Louis, MO, USA

| Salary: unspecified | Date posted: 25 Jul 2026
and the development of solutions and services to meet those needs. A fundamental part of this role is to govern the design... is appropriately documented, and that test plans are developed. Assist users in testing and adoption of process improvements, working