123 mid level software engineer jobs at 82 companies in Windsor, CO

3mo
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Software Engineer
Boulder, Colorado, United States
$120k-$160k/yr OnsiteFull Time
Centil
Centil: Provides engineering and cybersecurity services for national defense missions.
5+ YOE5+ years software engineering; Bachelor's in science/engineering/computer science; Java and C/C++; scripting; SQL; DoD SECRET clearance; onsite in Boulder, CO; DevSecOps focus; CI/CD; Kubernetes/Docker; strong collaboration and communication.
Java, C/C++, Python, Unix Shell Scripting, Batch File, Windows Script File, SQL, Windows, Linux, Kubernetes, Docker, OpenShift
1w
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Software Engineer
Boulder, Colorado, United States
$120k-$155k/yr OnsiteFull Time
Major League Baseball
Major League Baseball: Professional sports league governing North American baseball teams and media.
3+ YOE3+ years professional software engineering experience; strong iOS development with Swift, UIKit/SwiftUI; mobile architecture, networking, state management, and collaboration in cross-functional teams.
iOS, Swift, UIKit, SwiftUI, tvOS, Apple TV, Android, Android TV, Fire TV
1w
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Software Engineer
Fort Collins, Colorado, United States
$120k-$200k/yr OnsiteFull Time
Toyon Research
Toyon Research: Develops advanced technology and analysis for national defense systems.
2+ YOEMS in engineering/computer science/physics/math or BS+2 years industry experience; experience with software architecture, team development, version control, and Docker; US citizenship and ability to qualify for DoD clearance.
Python, C++, Docker, Kubernetes, Reinforcement Learning (RL), Large Language Models (LLMs), Computer Vision
3mo
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Software Engineer
Niwot, Colorado, United States
$80k-$85k/yr HybridFull Time
SparkFun Electronics
SparkFun Electronics: Sells and manufactures open-source hardware and electronic components.
3+ YOE3+ years software experience; expert in MicroPython and Python; Arduino ecosystem; embedded C/C++; hardware protocols (I2C/I2S/SPI); robotics/educational robots; IoT networks; DIY electronics projects; user-centric software development; strong communication.
Python, MicroPython, C, C++, I2C, I2S, SPI, Git, Open Source tooling
3w
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Advanced Software Systems Engineer
Boulder, Colorado, United States
$119k-$128k/yr HybridFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
3+ YOEBachelor's in systems engineering (or related) with 5+ years or Master's with 3+ years, DoD Secret clearance required, U.S. citizenship, experience with systems-level software development, MBSE, cloud and DevOps tooling.
Model-Based Systems Engineering (MBSE), AWS, Azure, RHOSP, VIO, Kubernetes, Rancher, Docker, OpenShift, Ansible, Terraform, Terragrunt, Packer, STIG, RMF
1mo
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Software Engineer
Boulder, Colorado, United States
$120k-$145k/yr OnsiteFull Time
Tech7
Tech7: Provides defense engineering and technology integration for government missions
3+ YOEUS citizen; Bachelor’s in computer science; 3+ years software development experience (OPIR preferred); programming in TypeScript, Python, Java; DevSecOps pipeline experience; eligible for Secret clearance; strong communication and analytical skills.
TypeScript, Python, Java, DevSecOps
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Embedded Software Engineer
Northglenn, Colorado, United States
$115k-$165k/yr HybridFull Time
Integrated Solutions for Systems
Integrated Solutions for Systems: Provides engineering, systems integration, and research for defense.
4+ YOEEngineering/CS degree, 4+ years software/embedded experience, embedded Linux expertise, version control and testing practices, security-clearance eligibility required.
Linux, PX4, Ardupilot, ROS, ROS2
1w
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Software Engineer
Boulder, Colorado, United States
$125k-$165k/yr OnsiteFull Time
Auria
Auria: Engineering and software solutions for space and defense missions.
2+ YOEActive DoD Secret clearance required, ability to obtain TS/SCI, proficiency in C/C++, Python, Linux, OOP, EM practices, 2+ years (SE2) or 5+ years (SE3) software development experience, STEM degree.
Linux, C, C++, Python, Java, Git, Conan, CMake, Nexus, Bash, Jira, Confluence, Bitbucket
3mo
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Senior Software Developer
Louisville, Colorado, United States
$118k-$144k/yr OnsiteFull Time
CableLabs
CableLabs: Develops next-generation technology specifications for the global broadband industry
5+ YOE5+ years in professional software development; strong Python; SQL; REST APIs; Git; CI/CD; excellent communication; Bachelor’s degree in CS/Software Engineering.
Python, SQL, Git, GitLab CI, pytest, REST APIs, JavaScript, TypeScript, Node.js
3w
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Software Performance Analysis Engineer - Level 2 or 3
Boulder, Colorado, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEActive Secret clearance, Linux and Python/Matlab experience, performance analysis and data analysis skills, 2+ years related experience (level 2) or 5+ (level 3), ability to travel up to 10%.
Python, Matlab, Linux, grep, awk, cat, head
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Software Engineer - RFGL Systems
Boulder, Colorado, United States
$90k-$131k/yr HybridFull Time
Spire Global
Spire GlobalNYSE: SPIR: Operates satellite constellations for global tracking and weather analytics.
2+ YOE2–5 years software engineering experience, hands-on AWS (EC2, S3, Lambda, ECS/EKS, CloudWatch, IAM), Python, Linux fundamentals, production systems reliability, monitoring, and strong communication.
EC2, S3, Lambda, ECS, EKS, CloudWatch, IAM, Python, Linux, Spark, Kafka, Databricks, Terraform, Ansible, CloudFormation, Docker, Kubernetes, GitHub Actions, Prometheus, Grafana, ELK, C++
2mo
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Software Engineer-- Embedded
Arvada, Colorado, United States
$81k-$108k/yr OnsiteFull Time
Mark VII Equipment
Mark VII Equipment: Manufacturer of automated car wash and vehicle cleaning systems.
6+ YOEBachelor’s in CS or Electrical Engineering; 6+ years engineering experience; strong C; RTOS; embedded HW know-how; NEC/UL508A a plus; German language a plus.
C, Real Time Operating Systems, Microcontroller hardware, Embedded programming, GitHub, I/O modules, CAN, Modbus, NEC, UL508A, German language (plus)
1w
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Software Engineer II
Denver or Fort Collins or Boulder
$90k-$110k/yr HybridFull Time
Synergetics
Synergetics: Provides secure cloud infrastructure and logistics software for defense.
3+ YOE3+ years software development with C#/.NET and Angular, Azure and SQL Server experience, CI/CD and DevOps familiarity, strong problem solving and communication; U.S. citizenship required.
.NET, Angular, C#, SQL Server, Microsoft Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure SQL, Microsoft Azure Storage, Microsoft Azure Key Vault, GitHub, Azure DevOps, GitHub Actions, BICEP, Terraform, ARM templates, Docker, Kubernetes, ServiceNow, JavaScript, TypeScript, HTML, CSS, React, Vue
4w
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Engineer II, Embedded, Sensors, and Safety Software
Henderson, Colorado, United States
$120k-$135k/yr HybridFull Time
Outrider
Outrider: Automates distribution yards with electric self-driving trucks.
Experience building software test infrastructure for safety-critical systems; system-level software proficiency; Python, C, Modern C++; embedded C; Linux; Git and CI/CD; test lab equipment and development containers; bachelor's in a related engineering field.
Python, C, Modern C++, Git, CI/CD, Linux, development containers, HIL, oscilloscope, data acquisition unit, signal generator, AI coding tools, REST APIs, CAN, UDP, TCP, DHCP, DNS, Wireshark, ROS, ROS2, IBM ELM/DOORS, ISO 26262, IEC 61508, RADAR, LIDAR, GPS, encoders
3w
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Software Performance Analysis Engineer - Level 2 or 3
Boulder, Colorado, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
2+ YOEActive U.S. Secret clearance required, Linux and Python/Matlab experience, performance analysis for mathematically intensive systems, 2–5 years related experience (varies by level), strong statistics and communication skills.
Python, Matlab, Linux, grep, awk, cat, head
1mo
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Engineer Senior – Embedded Software
Boulder or Westminster or Broomfield or Colorado or United States
$97k-$165k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
4+ YOEBS in engineering +4 years (or advanced degree substitution); current Secret clearance with ability to obtain TS/SCI; experience with Rust, C/C++, Python, Embedded Linux, FPGAs, messaging (MQTT/ZeroMQ), Yocto/PetaLinux, device tree, UML, and formal software lifecycle practices.
CI/CD, Containerization, C/C++, Rust, Python, Ruby, Embedded Linux, FPGAs, MQTT, ZeroMQ, PetaLinux, Yocto, Device tree, UML, Cameo, PlantUML, Protobuf, FlatBuffers, MATLAB, gtest, ctest, Yocto Project, OpenEmbedded, DevSecOps, hardware-in-the-loop, Linux
6d
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Software Engineer
Boulder, Colorado, United States
$77k-$135k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Degree in CS/CE or related field, development experience in C++, ability to obtain Secret clearance; experience with containerization, CI/CD, embedded systems and strong algorithm/data-structure skills.
C++, Python, Docker, Kubernetes, Jenkins, GitLab CI
1w
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Software Quality Engineer - 770
Broomfield, Colorado, United States
$132k-$165k/yr HybridFull Time
Quantinuum
Quantinuum: Building full-stack quantum computing hardware and software systems.
4+ YOEBachelor's degree and 4+ years software engineering experience; strong Python and test automation (Robot Framework) skills; experience with CI/CD, cloud platforms, and debugging; must be U.S. Person and pass pre-employment drug test.
Python, Robot Framework, AWS, Google Cloud Platform (GCP), Microsoft Azure, Jenkins, GitHub Actions, Git, Linux, PostgreSQL, Redis, InfluxDB, Elasticsearch
3mo
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Software Engineer, Watch Software
Boulder or Cupertino or San Diego
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
BS in CE/CS or equivalent; proficient in Objective-C and Swift; experience building high-traffic system frameworks; strong performance profiling and IPC knowledge.
Objective-C, Swift, Inter-process communication, High-traffic system frameworks, Profiling
3mo
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Software Test Automation Engineer
Niwot, Colorado, United States
$90k-$120k/yr HybridFull Time
Particle Measuring Systems
Particle Measuring Systems: Manufactures particle counters and cleanroom contamination monitoring systems.
5+ YOEBS in CS or software engineering; 5+ years automation testing; strong scripting; framework development; CI/CD experience; cybersecurity awareness.
Java, Python, Selenium, Selenide, JUnit, Ranorex Studio, Jenkins, IntelliJ