{"id":1203900,"url":"https://alion.io/job/horizon3-staff-platform-engineer","title":"Staff Platform Engineer","company":{"id":3088,"name":"Horizon3","domain":"horizon3.ai","url":"https://alion.io/company/horizon3","size_band":"1001-5000","is_staffing_agency":false,"is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":79,"open_postings":14,"ghost_share":0,"stale_share":0.857,"repost_share":0,"time_to_fill_p50_days":49,"computed_at":"2026-09-24T05:45:00Z"}},"role":"DevOps","role_family":"DevOps","seniority":"staff","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":199750,"max":270000,"currency":"USD","period":"year","gross":null,"usd_annual":270000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Crossplane","optional":false},{"name":"Go","optional":false},{"name":"IAM","optional":false},{"name":"Kubernetes","optional":false},{"name":"Least Privilege","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false},{"name":"Datadog","optional":true},{"name":"GitLab","optional":true},{"name":"GitLab CI","optional":true},{"name":"Linux","optional":true},{"name":"OpenTelemetry","optional":true}],"status":"live","first_seen_at":"2026-09-24T20:08:23Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-25T01:33:55Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Get to Know Us\nHorizon3 is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs.\nWe are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, \"checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.\nAbout the Role\nWe are looking for a Staff Platform Engineer to join Horizon3’s Internal Platform Team (IPT) and shape the cloud and delivery foundations behind NodeZero.\nYou will lead complex, cross-team initiatives; define platform direction; improve developer workflows; and establish standards that make our systems secure, reliable, and easier to operate. This is a hands-on technical leadership role for an engineer who enjoys solving ambiguous problems and building reusable platform capabilities.\nWhat You’ll Do\nPlatform Strategy, Delivery & Operations\nLead the design and evolution of AWS, Kubernetes/EKS, and shared platform services.\n\nDefine architecture for infrastructure automation, service delivery, regional capabilities, and ephemeral environments.\n\nBuild reusable platform capabilities, self-service workflows, and release-safety practices.\n\nEvolve infrastructure-as-code and declarative approaches, including Terraform and Crossplane-related capabilities.\n\nImprove platform reliability, observability, security, performance, and operability.\n\nParticipate in on-call and incident response, leading post-incident improvements.\n\nTechnical Leadership & Collaboration\nDrive high-impact initiatives across multiple teams and balance reliability, security, cost, developer experience, and delivery speed.\n\nEstablish platform standards, reduce technical debt, and guide design decisions.\n\nPartner with feature teams to turn platform needs into durable solutions.\n\nMentor engineers and raise the technical bar across Engineering.\n\nImprove documentation, runbooks, interfaces, and self-service paths.\n\nCommunicate clearly and build alignment across Platform, Application Engineering, Data Engineering, Product, Program Management, and Security.\n\nWhat You’ll Bring\nRequired Qualifications\n8+ years in platform engineering, infrastructure engineering, SRE, DevOps, or software engineering with substantial production-platform ownership.\n\nDeep experience designing and operating cloud platforms, preferably AWS.\n\nStrong Kubernetes experience, including production operations, networking, reliability, and troubleshooting.\n\nStrong infrastructure-as-code and automation experience with Terraform, Crossplane, or comparable tools.\n\nExperience operating CI/CD and delivery infrastructure.\n\nStrong understanding of IAM, secrets, networking, ingress, and least privilege.\n\nExperience with distributed-systems observability and operational practices.\n\nProficiency in Go and Python for platform services, developer tooling, or automation.\n\nDemonstrated success leading complex initiatives across multiple teams.\n\nExcellent communication, mentoring, and technical-influence skills.\n\nPreferred Qualifications\nMulti-region or multi-environment SaaS platform experience.\n\nInternal developer platform, declarative API, or Platform-as-a-Service experience.\n\nGitLab CI/CD, self-hosted runners, OpenTelemetry, or Datadog experience.\n\nEphemeral-environment, automated-provisioning, or platform-lifecycle experience.\n\nSecurity-sensitive, regulated, or cybersecurity experience.\n\nStartup or high-growth company experience.\n\nOur Platform Stack\nAWS, Kubernetes, and EKS\n\nTerraform and Crossplane-related tooling\n\nGitLab and CI/CD pipelines\n\nOpenTelemetry and Datadog\n\nLinux, containers, networking, IAM, and secrets-management systems\n\nGo and Python for automation and platform services\n\nExact tool matches are less important than strong platform fundamentals, sound judgment, and end-to-end ownership of production systems.\nWhat Success Looks Like\nEngineering teams move faster through reliable platform capabilities and self-service workflows.\n\nShared services are secure, observable, maintainable, and easier to operate.\n\nRegional and ephemeral environments deploy consistently with less manual effort.\n\nPlatform consumers have clear interfaces, documentation, and support paths.\n\nYou are trusted to lead complex platform decisions and develop other engineers.\n\nWhy Join Us\nYou’ll shape the platform behind a rapidly evolving cybersecurity product used by organizations around the world, working with engineers, security practitioners, and technical leaders on problems with broad technical impact.\nTravel\nOccasional travel may be required for company onsite meetings and team collaboration.\nPerks of Horizon3\nInclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.\n\nGrowth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.\n\nInnovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.\n\nHybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.\n\nCompetitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.\n\nCompensation and Values\nAt Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.\nIn accordance with various State’s transparency regulations, we provide the following salary range information for this position:\nBase salary range: $199,750 - $270,000 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.\n\nAdditional compensation: All full-time roles are eligible for an equity package in the form of stock options.\n\nYou Belong Here\nHorizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, or any other legally protected status by law.\nOur commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.\nWe welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.\nOther Duties\nPlease note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.\nApplication Note\nIn any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.","description_format":"text","description_chars":8724,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Dental insurance","Equity","Flexible vacation policy","Growth opportunities","Hybrid work","Parental leave","Stock options"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Penetration Testing","Information Security","Vulnerability Management","Cybersecurity AI"],"lifecycle":[{"event":"open","at":"2026-09-24T22:36:36Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":49,"reasons":["conf:0","win:early","comp:brand"],"computed_at":"2026-09-25T01:57:45Z"},"pay":{"stated_usd_annual":270000,"is_top_pay":true},"html_url":"https://alion.io/job/horizon3-staff-platform-engineer","json_url":"https://alion.io/job/horizon3-staff-platform-engineer.json","meta":{"generated_at":"2026-09-25T01:57:45Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2003,"day_limit":5000,"remaining_today":2997,"minute_limit":60,"resets_at":"2026-09-26T00:00:00Z"}}}