51 senior software testing engineer jobs at 25 companies in Fort Collins, CO

2mo
Save
Mark Applied
Hide
Senior Software Engineer
Boulder or Austin
$140k-$185k/yr HybridFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
5+ YOEBachelor's degree in CS/CE or related, 5+ years software engineering experience, proficiency with Python and SQL, Linux and Git experience, familiarity with automated testing and CI/CD practices, willingness to learn atomic/quantum concepts.
Python, Rust, TypeScript, React, SQL, Linux, Git, Terraform, Azure, AWS, GCP, C++
3w
Save
Mark Applied
Hide
Senior Software Engineer
Loveland, Colorado, United States
$125k-$145k/yr OnsiteFull Time
Antech Diagnostics
Antech Diagnostics: Provides veterinary diagnostic testing and imaging services.
5+ YOE5+ years software development experience, strong C++ and embedded Linux skills, DevOps with Docker and GitLab CI, AWS/Azure experience, automated testing, bachelor's degree or equivalent preferred.
C++, Embedded Linux, Docker, GitLab CI, AWS, Azure, Qt, Yocto, LIMS, Electronic Health Records (EHR)
1w
Save
Mark Applied
Hide
Senior Software Engineer
Portland or North Dakota or Montana or Maine or Ohio or Nebraska or Phoenix or Louisiana or Texas or Nevada or Georgia or Tampa or Mississippi or Colorado or Denver or Wyoming or Wisconsin or West Virginia or Vermont or Richardson or Arkansas or Dallas or South Dakota or Pennsylvania or Michigan or Indiana or Idaho or Arizona or Plano or New Mexico or New Hampshire or Kentucky or Alabama or Philadelphia or South Carolina or Austin or Illinois or Atlanta or Missouri or Iowa or Tennessee or Boulder or North Carolina or Minnesota or Kansas or Houston or Alaska or Chicago or Rhode Island or Washington or Virginia or Utah or Oregon or Florida or Miami or Oklahoma
$139k-$204k/yr RemoteFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
5+ YOEBachelor's degree with 5+ years, master's with 3+ years, or PhD with 1+ year; production software development, testing, troubleshooting, code reviews, technical design, scalability, reliability, and security experience.
AI/ML, generative AI, LLMs, AI agents
1w
Save
Mark Applied
Hide
Sr Software Engineer
Fort Collins or Loveland or United States
$100k-$140k/yr OnsiteFull Time
Advanced Energy
Advanced EnergyNasdaq: AEIS: Provides precision power conversion and control technology solutions.
5+ YOEBachelor's degree and 5+ years, or master's degree and 3+ years, in DevOps, software engineering, test automation, embedded software, or related engineering tools; experience with CI/CD, Git, Python, databases, and embedded systems.
Python, Bash, PowerShell, Git, Jira, Confluence, CMake, Ninja, GNU Make, GCC/G++, pytest, Robot Framework, GoogleTest, CTest, Docker, Microsoft Copilot, GitHub Copilot, SQL, Linux, Windows, CI/CD, RTOS, HIL
3d
Save
Mark Applied
Hide
Senior Realtime Software Engineer
Boulder, Colorado, United States
$165k-$218k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOERequires 5+ years of C++ development, Linux, low-latency software, hardware firmware testing, networking, security, distributed systems, technical documentation, and eligibility for U.S. security clearance.
Linux, Nix, NixOS, C++, CUDA, GIT, JIRA, CI/CD, C, Rust, Python
1w
Save
Mark Applied
Hide
Senior Test Software Engineer
Longmont, Colorado, United States
$110k-$135k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
5+ YOEBachelor's degree in a technical discipline, 5+ years developing automated test systems, programming proficiency, instrumentation interfaces, test automation, version control, U.S. Person status, and clearance eligibility.
C#, Python, C++, LabVIEW, VISA, GPIB, USB, Ethernet/LXI, Serial, PXI, Git, Azure DevOps, NI VISA, SCPI, NI TestStand, SPI, I²C, UART, CAN, Ethernet, RS-422/485, MATLAB, SQL
3mo
Save
Mark Applied
Hide
Engineer Principal - Software - Payload Test
Broomfield, Colorado, United States
$118k-$201k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOEBachelor's in engineering or related plus 6+ years experience, active TS/SCI clearance, strong software engineering skills (Windows, OOP), coding and test experience; Ruby, Python, RDBMS, LabVIEW desirable; agile, CI, unit testing, MS Office proficiency.
Ruby, Python, RDBMS, LabVIEW, Microsoft Office, Windows
4d
Save
Mark Applied
Hide
Senior or Principal Software Development Engineer - Agent Factory
Boulder or Toronto or Vancouver
$156k-$264k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
8+ YOESenior role requires 8+ years or principal role 12+ years in software development. Requires cloud SaaS, distributed systems, DevOps, CI/CD, testing, observability, Docker, Kubernetes, communication, and a bachelor's degree or equivalent.
AWS, DevOps, CI/CD, Docker, Kubernetes, Elasticsearch, Java, TypeScript
3mo
Save
Mark Applied
Hide
Prin Software Engineer
Lafayette, Colorado, United States
$153k-$229k/yr OnsiteFull Time
Medtronic
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
7+ YOEExperience designing, developing, testing, and maintaining software for medical devices; strong knowledge of C++, C#, and GUI frameworks; able to work in Agile teams.
Visual Studio, VS Code, Qt Creator, Rad Studio, C++, C#, WPF, Qt
1mo
Save
Mark Applied
Hide
Staff Software Developer
Boulder, Colorado, United States
$128k-$229k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
7+ YOERequires advanced software development experience (C++, Linux, multithreading, TCP/UDP sockets), 7+ years' experience (varies by degree), ability to obtain DoD security clearance, and strong communication and testing skills.
C++, TCP, UDP, Linux, GitLab, Git, Bash, Python, ZYNQ Ultrascale, Xilinx SDK, PetaLinux, SPI, I2C, UART, Ethernet, Unit Testing Tools
3mo
Save
Mark Applied
Hide
Senior Embedded Software Quality Engineer II
Westminster, Colorado, United States
$130k-$161k/yr OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
6+ YOE6+ years in software engineering with QA/testing; DoD/embedded systems experience; SDLC; QA audits; programming in C/C++/Python; Agile tools
C, C++, Python, Jira, Confluence, Docker, GitLab
2w
Save
Mark Applied
Hide
Staff / Senior Staff Software Test Engineer
Boulder, Colorado, United States
$102k-$157k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
3+ YOEBachelor's degree in physical sciences, mathematics, engineering, or computer science; 3 years of software test engineering experience; ability to obtain and maintain a DoD security clearance; U.S. citizenship required.
Python, Model-Based Systems Engineering (MBSE)
2mo
Save
Mark Applied
Hide
Principal Automation Software Test Engineer: SDET
Lafayette, Colorado, United States
$122k-$184k/yr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
7+ YOEBachelors in Computer Science/Engineering, 7+ years in software QA/test automation, 5+ years in medical device or regulated industries, scripting and programming (Python, Bash, JavaScript, Perl, C/C++), Linux, UML, test automation frameworks, Cypress/Jest/Supertest/React, RabbitMQ/REST, FDA QSR and IEC 62304 knowledge, leadership and mentoring expe...
Python, Bash, JavaScript, Perl, C/C++, Linux, UML, Cypress, Jest, Supertest, React, RabbitMQ, REST, Agile, Test-driven development
2w
Save
Mark Applied
Hide
Principal Engineer – Software Development
Boulder, Colorado, United States
$75k-$232k/yr OnsiteFull Time
Microchip Technology
Microchip TechnologyNasdaq: MCHP: Manufacturer of microcontrollers, analog, and mixed-signal integrated circuits.
10+ YOEBachelor's degree with 10+ years or master's degree with 7–8 years of relevant experience; proficiency in C, C#, Python, SQL; test instrumentation, circuits, signal analysis, and U.S. export eligibility required.
C#, C, Python, SQL, LabVIEW
3mo
Save
Mark Applied
Hide
Senior Airborne Platform Automation Test Engineer
Broomfield, Colorado, United States
$108k-$135k/yr OnsiteFull Time
Gogo
GogoNASDAQ: GOGO: Provides in-flight broadband and entertainment for business aircraft.
4+ YOE4-7 years in software/firmware/system testing; strong QA automation; Python 3; Linux; TCP/IP networking; test planning and regression testing.
Python 3, Linux, Linux OS, Git, Jenkins, Docker, TCP/IP, UDP
1mo
Save
Mark Applied
Hide
Test Engineer III – Motion Control, Honeybee Robotics, EGSE & Test Software
Longmont, Colorado, United States
$111k-$155k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
5+ YOEBachelor's in engineering, 5+ years developing EGSE/ATE and test software, proficiency with Python/LabVIEW/C#/MATLAB, experience with data acquisition and environmental testing; U.S. citizen/permanent resident/refugee/asylee required.
Electrical Ground Support Equipment (EGSE), Automated Test Equipment (ATE), Python, LabVIEW, C#, MATLAB, Git, DOORS, Jama, Vector Network Analysis (VNA), motor controllers, load cells, torque sensors, encoders, thermocouples, accelerometers, multi-channel data acquisition systems
2mo
Save
Mark Applied
Hide
Senior Productization Engineer
Louisville, Colorado, United States
$155k-$170k/yr OnsiteFull Time
Infleqtion
InfleqtionNYSE: INFQ: Develops neutral-atom quantum computing and precision sensing technologies.
7+ YOEMaster's/PhD (or equivalent experience), 7+ years in complex hardware development/productization, cross-discipline experience across optical, mechanical, electrical, software/firmware, test and manufacturing, experience creating WBS/BOE, integration/verification plans, and leading matrixed teams.
2w
Save
Mark Applied
Hide
Senior Backend Engineer - Payments Platform
Broomfield, Colorado, United States
$140k-$160k/yr OnsiteFull Time
Choice Digital
Choice Digital: A financial technology providing secure, compliant, and efficient digital disbursement solutions.
5+ YOEBachelor's degree in computer science or equivalent, or 5+ years' software development experience. Requires Python, SQL, NoSQL databases, software testing, object-oriented design, Git, cloud platforms, Docker, and Terraform.
Google Cloud Platform, AWS, Docker, Terraform, Python, SQL, Postgres, Redis, Git, ACH, Visa, Mastercard
1mo
Save
Mark Applied
Hide
R&D Engineer SW Quality 3
Broomfield, Colorado, United States
$91k-$146k/yr OnsiteFull Time
Broadcom
BroadcomNASDAQ: AVGO: Designs and sells semiconductors and infrastructure software to enterprises.
8+ YOEBachelor's in engineering, 8+ years software testing experience, QA methodologies, Linux/Windows/VMware, Python scripting, SAN and networking knowledge, strong communication and analytical skills.
Python, Linux, Windows, VMware, Jira, REST API, CVSS, STRIDE
1mo
Save
Mark Applied
Hide
NPI Test Engineer IV
Longmont, Colorado, United States
$130k-$160k/yr OnsiteFull Time
Stored Energy Systems
Stored Energy Systems: Manufactures mission-critical battery chargers and DC power systems.
8+ YOEBachelor's in EE/CE or equivalent; 8+ years NPI/Manufacturing Test Engineering; experience with manufacturing readiness, DFT, test equipment (voltmeters, o-scopes, data acquisition, load banks), root cause analysis, and software programming (C# preferred).
C#, voltmeters, data acquisition systems, o-scopes, load banks, Design for Test (DFT)