85 mid level software engineer jobs at 48 companies in Wellington, CO
4d
Save
Mark Applied
Hide
Software Engineer - Level 2 or 3
Boulder, Colorado, United States
$92k-$171k/yr OnsiteFull Time
2+ YOEU.S. citizen with active Secret clearance, STEM bachelor's (or higher) with 2+ years (Level 2) or 5+ years (Level 3) software experience; experience with C++, Python, Linux, containers and CI/CD.
Kubernetes, K3s, C++, Python, Linux, CI/CD, Git, Jenkins, OpenShift, Docker, Podman
1w
Save
Mark Applied
Hide
Jr. to Mid-level Software Engineer - Boulder, CO
Boulder, Colorado, United States
$110k-$138k/yr OnsiteFull Time
2+ YOEProficiency in C/C++, Python, Linux, and OOP; experience with algorithm development, state estimation, and data analysis; ability to travel up to 10%; active DoD Secret clearance required to start.
Linux, C, C++, Python, Java, Jira, Git, Conan, CMake, Nexus, Bash, grep, awk, cat, head, Confluence, Bitbucket
2w
Save
Mark Applied
Hide
Software Engineer
Boulder, Colorado, United States
$120k-$155k/yr OnsiteFull Time
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
3w
Save
Mark Applied
Hide
Software Engineer
Fort Collins, Colorado, United States
$120k-$200k/yr OnsiteFull Time
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
4d
Save
Mark Applied
Hide
Cybersecurity Software Engineer - Level 3 or 4
Boulder, Colorado, United States
$114k-$171k/yr OnsiteFull Time
5+ YOEDoD 8570 IAT Level II or higher, active U.S. Secret security clearance, 5+ years related experience (Level 3) or 8+ years (Level 4), experience with cyber certification, DevSecOps, NIST/RMF, and vulnerability management.
Tenable Security Center, Nessus, Splunk, LogRhythm, Python, C++, NIST SP 800-53, RMF, DISA STIGS, SCAP, HBSS, ACAS, SIEM, Linux, Windows
4w
Save
Mark Applied
Hide
Advanced Software Systems Engineer
Boulder, Colorado, United States
$119k-$128k/yr HybridFull Time
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
2mo
Save
Mark Applied
Hide
Software Engineer
Boulder, Colorado, United States
$120k-$145k/yr OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Software Engineer
Boulder, Colorado, United States
$125k-$165k/yr OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Software Engineer - RFGL Systems
Boulder, Colorado, United States
$90k-$131k/yr HybridFull Time
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++
3w
Save
Mark Applied
Hide
Software Engineer II
Denver or Fort Collins or Boulder
$90k-$110k/yr HybridFull Time
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
1mo
Save
Mark Applied
Hide
Engineer Senior – Embedded Software
Boulder or Westminster or Broomfield or Colorado or United States
$97k-$165k/yr OnsiteFull Time
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
3mo
Save
Mark Applied
Hide
Software Engineer II
Centennial or Louisville
$106k-$145k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent; 2+ years experience; strong programming and software development knowledge; Agile/Scrum/Kanban; ability to obtain/maintain US security clearance.
Python, React, FastAPI, Kubernetes, Docker, Git, AWS, Ansible, Jira, Confluence
4w
Save
Mark Applied
Hide
Software Engineer II, Valence
Louisville, Colorado, United States
$95k-$110k/yr OnsiteFull Time
3+ YOE3+ years commercial software development; strong C++ and Linux experience preferred; familiarity with Agile, Git, Azure DevOps, and Jira; experience in regulated environments and BS/MS in CS or related field preferred.
C++, Linux, Agile, Git, Azure DevOps, Jira
2mo
Save
Mark Applied
Hide
Senior Software Engineer (Loveland, CO)
Loveland, Colorado, United States
$107k-$134k/yr OnsiteFull Time
5+ YOEFive or more years in professional software development; strong C++ and embedded Linux experience; DevOps (Docker, GitLab CI); cloud infrastructure (AWS/Azure); GUI with Qt; Yocto; LIMS/EHR connectivity; regulated software (IEC 62304 FDA QSR ISO 13485).
C++, Embedded Linux, Docker, GitLab CI, AWS, Azure, Qt, Yocto
2mo
Save
Mark Applied
Hide
Software Developer - Connected Vehicles
Cheyenne or Fort Collins or Laramie
$70k-$100k/yr OnsiteFull Time
3+ YOEBS in computer science; 3-6+ years software development; proficient in Java, Spring, REST, Linux; Docker/Kubernetes, Kafka; Hibernate/JPA, HTML5, CSS, JavaScript; various databases; cloud platforms; strong communication and problem-solving.
Java, Spring, REST, Linux, Docker, Kubernetes, Kafka, Hibernate/JPA, HTML5, CSS, JavaScript, Relational databases, NoSQL, Graph databases, Cloud platforms
3w
Save
Mark Applied
Hide
System Software Engineer II
Longmont, Colorado, United States
$90k-$120k/yr OnsiteFull Time
3+ YOEBachelor's degree required. 3+ years production experience in compiled languages (Rust,C++,Go,Java,C). Experience with Linux (Ubuntu, Yocto), multithreaded systems, debugging complex software, and on-hardware verification.
Rust, C++, Python, Go, Java, C, Ubuntu, Yocto, CAN
2mo
Save
Mark Applied
Hide
Staff Software Engineer, Linux Tools & Host Software (Multiple locations)
San Diego or Austin or Raleigh or Santa Clara or Boulder
$121k-$202k/yr OnsiteFull Time
4+ YOEExperience developing Linux software in C and/or Rust; familiarity with build tools (CMake, make, gcc/clang), debugging tools (gdb, valgrind), git, TCP/IP socket programming; bachelor’s degree (or higher) with relevant years of experience.
C, Rust, C++, Java, Python, CMake, make, gcc, clang, gdb, valgrind, git, JSON, TCP/IP, Unix domain sockets, GStreamer, FFmpeg, V4L2, OpenCV, DEB, RPM, bash, QNX
4w
Save
Mark Applied
Hide
Sr Software Engineer (SDET)
Lafayette, Colorado, United States
$103k-$155k/yr OnsiteFull Time
4+ YOEBachelor's degree with 4+ years (or advanced degree with 2+ years), experience in test system development, manual and automated testing integrated into CI/CD, embedded software testing, and strong problem-solving and communication skills.
C, C#, Python, Jira, Polarion, Gitlab, Matlab, Minitab, Microsoft Excel
4w
Save
Mark Applied
Hide
Sr Software Engineer (SDET)
Lafayette, Colorado, United States
$103k-$155k/yr OnsiteFull Time
4+ YOEBachelor's degree plus 4 years (or advanced degree plus 2 years), experience in test system development, manual and automated testing, CI/CD integration, embedded software testing, and strong problem-solving and communication skills.
C, C#, Python, Jira, Polarion, GitLab, Matlab, Minitab, Microsoft Excel
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Boulder, Colorado, United States
$140k-$185k/yr HybridFull Time
3+ YOEDesign and build API integrations and data pipelines; experience with log collectors; cloud platforms; Go/Kotlin/TypeScript; 3–6+ years in relevant roles.
AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Fluentd, Fluent Bit, Vector, Logstash, Elastic Beats, OpenTelemetry Collector, rsyslog, syslog-ng, Elasticsearch, Kibana, Kafka, Terraform, Go, Kotlin, TypeScript, JSON, CEF, Syslog