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154 platform software engineer jobs at 89 companies in Longmont, CO

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
1w
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Hybrid Cloud Platform Software Engineer
Denver or Sterling or St. Louis or Sunset Hills
$99k-$207k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOEBachelor's in STEM or equivalent experience, 7+ years developing software/cloud solutions, AWS, Git, Kubernetes, Helm, Trino experience, strong communication; TS/SCI with poly preferred.
Amazon Web Services, Git, Kubernetes, Helm, Trino, Red Hat OpenShift, Cameo
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1w
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Hybrid Cloud Platform Software Engineer
Denver or St. Louis or Sterling or Sunset Hills
$99k-$207k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOEBachelor's in STEM (or equivalent certs), 7+ years developing software/cloud solutions, AWS, Git, Kubernetes, Helm, Trino experience, TS/SCI clearance preferred, strong communication and critical thinking.
Amazon Web Services, Git, Kubernetes, Helm, Trino, Red Hat OpenShift, Cameo
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1mo
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Staff+ Software Engineer - B2B Platform
Denver or San Francisco
$190k-$240k/yr OnsiteFull Time
Frontera Health
Frontera Health: AI-driven platform for automating and improving autism clinical care.
7+ YOE7+ years software engineering with backend focus; experience designing and scaling backend systems, APIs, distributed systems, and data platforms; proficiency in Python or Node.js and relational/NoSQL databases; strong system design and communication skills.
Python, Node.js, Relational database, NoSQL, APIs
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1mo
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Senior Software Engineer, Platform
Irvine or Newport Beach or Denver or San Francisco or Seattle
$185k-$200k/yr HybridFull Time
Compa
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years backend software engineering experience; hands-on AWS, Python, Django, and Postgres; strong DevOps/SRE fundamentals (CI/CD, observability, incident response); networking and distributed systems knowledge.
AWS, Python, Django, Postgres, Kubernetes, CI/CD, Infrastructure as Code (IaC), ML Ops
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1mo
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Senior / Staff Platform Engineer
Aurora, Colorado, United States
$150k-$190k/yr OnsiteFull Time
NASK
NASK: Delivers mission-critical digital signal processing solutions to intelligence and defense clients.
7+ YOE7+ years in software/DevOps/platform engineering; production Kubernetes and AWS experience; Terraform, Docker/Helm, Prometheus, Git proficiency; active Top Secret clearance required; BS in EE, CS, or related.
Kubernetes, AWS, EC2, S3, VPC, IAM, RDS, Lambda, Linux, Terraform, Docker, Helm, Prometheus, Git, GitLab CI, ArgoCD, C++, Python, Ansible, Keycloak
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1mo
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Staff / Senior Staff Platform Software Engineer
Boulder, Colorado, United States
$98k-$146k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
2+ YOEU.S. citizenship and DoD clearance eligibility, Bachelor's in a STEM discipline, 2+ years professional experience with Python3, CI/CD (GitLab CI/GitHub Actions/Jenkins), Git, and container orchestration (Docker/Podman/Kubernetes).
Python3, GitLab CI, GitHub Actions, Jenkins, Git, Docker, Podman, Kubernetes, Kustomize, Helm, Google Crane, Skopeo, Grype, Syft, Fortify, SonarQube, Snyk, Trivy, ZAP, AWS, EKS, EC2, Lambda, Istio, NGINX, Traefik, Prometheus, Grafana, Keycloak, JFrog Artifactory, Nexus, Backstage, Port, Score, Kratix, Humanitec, C++, Rust, Bash, Go
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3w
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Staff software engineer, sustainability platform
Denver, Colorado, United States
$215k-$254k/yr HybridFull Time
Watershed
Watershed: Software platform for corporate carbon accounting and climate reporting.
8+ YOE8+ years software engineering experience across front-end and back-end; experience with data-intensive products, ownership of end-to-end features, strong communication and product collaboration skills.
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2w
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Platform Engineer
Greenwood Village, Colorado, United States
$90k-$135k/yr OnsiteFull Time
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
0+ YOEBachelor's degree or equivalent, 0–3 years experience in software/embedded/Linux, programming in C/C++/Python/Bash, familiarity with Git and Linux development, strong troubleshooting and communication skills.
C, C++, Python, Bash, Linux, Yocto, Buildroot, Git, GitLab
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2w
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Senior Platform Engineer, Infrastructure
Denver or Long Beach
$120k-$180k/yr HybridFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
5+ YOE5+ years building and operating cloud infrastructure and platform tooling; experience with multi-cloud (AWS/Azure/GCP), Terraform, CI/CD; strong networking, software, and mentorship skills; US citizenship and ability to obtain Top-Secret clearance.
AWS, Azure, GCP, Terraform, AWS GovCloud, Azure Government, FedRAMP, NIST 800-53, CI/CD
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2mo
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Senior Software Engineer - Synthetics Platform
Boston or Denver or New York or Remote
$130k-$300k/yr HybridFull Time
Datadog
DatadogNASDAQ: DDOG: Observability and security platform for cloud applications and infrastructure.
5+ YOE5+ years in software engineering; programming in Go or Python; production cloud experience; distributed compute/storage tools (Kubernetes, Cassandra, Postgres, Kafka, Redis); automation with infrastructure as code.
Go, Python, Kubernetes, Cassandra, Postgres, Kafka, Redis, Terraform, Temporal, Bazel
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1w
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Senior Software Engineer — PingOne Platform Administration & Security
United States or Denver
$110k-$138k/yr RemoteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
5+ YOE5+ years software engineering experience with backend services; Java and NodeJS experience; TypeScript and REST API familiarity; experience with SaaS, CI/CD, distributed systems, and mentoring peers.
Java, NodeJS, TypeScript, REST APIs, CI/CD, MCP
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2d
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Senior Platform Integration Engineer
Littleton, Colorado, United States
$96k-$138k/yr OnsiteFull Time
EchoStar
EchoStarNasdaq: SATS: Global provider of satellite solutions and wireless communications services.
5+ YOEBachelor's in CS/IT/CE,5+ years in platform integration/systems engineering,3+ years with entitlement servers/eSIM/API/CI-CD or IaC,strong troubleshooting and networking expertise.
GSMA TS43, eSIM, MDM, API, CI/CD, infrastructure-as-code, Terraform, Kubernetes, Retrieval-augmented generation (RAG)
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1mo
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Flight Software Engineer (Platform)
Golden, Colorado, United States
$95k-$175k/yr OnsiteFull Time
Rendezvous Robotics
Rendezvous Robotics: Develops self-assembling modular tiles for in-space infrastructure.
Degree in CS/CE/EE or equivalent; strong C/C++; embedded Linux and low-level device driver experience; familiarity with serial buses and firmware; experience building CI and image pipelines.
C++, C, Embedded Linux, UART, SPI, I2C, STM32, RTOS, Yocto, Buildroot, CMake, F Prime, CI
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5d
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Principal Software Engineer, Developer Platforms
Boulder, Colorado, United States
$220k-$297k/yr RemoteFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
8+ YOE8+ years software engineering experience, 3+ years in developer platforms/CI/CD or related, experience with automated testing, release pipelines, distributed systems, and a bachelor’s degree or equivalent.
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3mo
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Software Engineer
Aurora or Sarasota or Fairfax
OnsiteFull Time
Rampant Technologies
Rampant Technologies: Delivers signals intelligence and cybersecurity for national security missions.
3+ YOEExperience Linux software development, containerization, cloud platforms, and DevOps practices. Proficiency in Python. Kubernetes and CI/CD experience. Familiarity with DevSecOps and modern infrastructure.
Docker, Podman, Kubernetes, Git, GitLab, CI/CD, DevSecOps
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2mo
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Senior AI Platform Engineer
Boulder or United States
$175k-$215k/yr HybridFull Time
Campminder
Campminder: Cloud-based management software for the summer camp industry.
Senior AI Platform Engineer to build AI enablement tools, collaborate with executives and product, and drive AI tooling and observability across Campminder.
RAG, prompt engineering, context engineering, LLM evals, Claude Code, Cursor, MCPs, custom agents, skills/plugins, agentic coding tools
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2mo
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Staff Software Engineer
Denver, Colorado, United States
$185k-$225k/yr OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
7+ YOELead software engineering, define standards, mentor engineers, and drive cross-team architectural decisions; strong C++, Qt, embedded Linux, and cross-platform UI experience.
C++, Qt, QML, QtWidgets, QMake, CMake, REST, JSON, Linux, Android
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1mo
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Staff Software Engineer, Salesforce
Beaverton or Denver or Seattle or Portland or Springfield or Toronto or Bengaluru
$195k-$221k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
7+ YOEBachelor's/Master's in CS or related, 7+ years enterprise software experience with 4+ years on Salesforce; Salesforce Platform Developer I or II required; proficiency in Apex, LWC, Flows, SOQL, integrations, cloud platforms, and modern engineering practices.
Salesforce, Apex, Lightning Web Components, Flows, SOQL, ERP, CPQ, Revenue Cloud Advanced (RCA), Java, Python, Node.js, AWS, Azure, Google Cloud, REST APIs, Microservices, DevOps, CI/CD
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4w
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Software Engineer
Toronto or Denver or Fishers or Los Angeles or Krakow
$120k-$150k/yr HybridFull Time
Intellistack
Intellistack: Offers a no-code platform for forms and workflow automation.
3+ YOE3+ years backend engineering experience; strong Java and Spring Boot skills; experience with REST APIs, Kafka, Kubernetes, cloud platforms; knowledge of identity (OAuth 2.0, OIDC, SSO, SCIM). Bachelor's in CS/Engineering or equivalent.
Java, Spring Boot, Python, RESTful APIs, Kafka, Kubernetes, OAuth 2.0, OpenID Connect (OIDC), SSO, SCIM, AWS, Azure, Google Cloud Platform, Okta, Auth0, Ping Identity, Keycloak, Terraform, OpenTelemetry, Datadog, Grafana
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3mo
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Platform Engineer (Kubernetes)
Herndon or Westminster or St. Louis
$145k-$215k/yr OnsiteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
14+ YOEUS citizen with TS/SCI with CI poly; 14+ years in technical roles; Kubernetes/OpenShift; CI/CD; container tech; on-call in SCIF; ability to work with distributed teams.
Kubernetes, OpenShift, Docker, CI/CD (Jenkins, GitHub Actions, GitLab CI), Terraform, Ansible, Python, Bash, Go
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