{"id":12951,"url":"https://alion.io/job/horizon3-staff-technical-support-engineer","title":"Staff Technical Support Engineer (Web App)","company":{"id":3088,"name":"Horizon3","domain":"horizon3.ai","url":"https://alion.io/company/horizon3","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":77,"open_postings":16,"ghost_share":0,"stale_share":0.938,"repost_share":0,"time_to_fill_p50_days":39,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Support","role_family":"Support","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":117000,"max":145000,"currency":"USD","period":"year","gross":null,"usd_annual":145000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Bash","optional":false},{"name":"BGP","optional":false},{"name":"CloudFormation","optional":false},{"name":"Datadog","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"TCP/IP","optional":false},{"name":"Tcpdump","optional":false},{"name":"Terraform","optional":false},{"name":"Wireshark","optional":false},{"name":"FedRAMP","optional":true},{"name":"GDPR","optional":true},{"name":"Go","optional":true},{"name":"JavaScript","optional":true},{"name":"SOC 2","optional":true}],"status":"live","first_seen_at":"2026-07-20T19:07:49Z","employer_posted_date":"2026-08-06","last_verified_at":"2026-10-17T21:29:44Z","board_verified":true,"closed_at":null,"days_open":89,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":89},"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.\nWhat You’ll Do\nWe are seeking a seasoned Staff-Level Enterprise Technical Support Engineer with 8+ years of hands-on industry experience to join our high-performing support team. In this role, you will serve as a senior technical authority for our enterprise customers, diagnosing and resolving the most complex issues related to cloud infrastructure, networking, and security. You'll drive cross-functional collaboration to ensure seamless customer experiences, applying deep expertise in Linux, containerization, and cloud technologies. This position requires a highly autonomous technical leader who excels in fast-paced enterprise environments, owns resolution of critical escalations, and actively shapes the technical direction of the support function.\nKey Responsibilities\nServe as the ultimate escalation point for enterprise customers, leading resolution of the most critical and ambiguous technical issues across cloud, networking, and infrastructure domains.\n\nDrive root cause analysis on systemic and recurring problems, partnering with engineering and product teams to influence upstream fixes and long-term reliability improvements.\n\nLead cross-functional initiatives with engineering, product, and sales teams to resolve complex technical challenges, while establishing documentation standards and knowledge frameworks that scale across the team.\n\nOwn the design and review of customer environment architectures, providing authoritative guidance on best practices for infrastructure as code, containerized applications, and cloud-native patterns.\n\nDefine and refine support processes, SLA frameworks, and escalation paths, contributing directly to operational excellence and continuous improvement at the team level.\n\nMentor and technically develop senior and junior team members alike, driving a culture of engineering rigor, knowledge sharing, and technical growth across the support organization.\n\nIdentify emerging technology trends and proactively introduce capabilities, tooling, and practices that elevate the team's support effectiveness and customer outcomes.\n\nBachelor's degree in Computer Science, Information Technology, Engineering, or a related field (or equivalent professional experience).\n\n8+ years of relevant industry experience in technical support, systems administration, or cloud operations, with demonstrated tenure supporting large-scale, mission-critical deployments for enterprise B2B customers.\n\nDemonstrated experience leading support incident response in high-availability environments.\n\nDeep experience with:\nModern web application architectures, including SPAs, server-rendered apps, APIs, and microservice-backed platforms, with the ability to troubleshoot real browser, client-side, and authentication/authorization behavior in production.\n\nDocker and containerization technologies, including designing, deploying , and operating containerized workloads at scale in Kubernetes or equivalent orchestration platforms, with understanding of cluster health and rollout strategies. (OR CKA/CKAD)\n\nLinux administration, including advanced performance tuning and security hardening.\n\nNetworking fundamentals, including TCP/IP, BGP, firewalls, VPNs, load balancers, and advanced network troubleshooting using tools such as Wireshark and tcpdump in production environments.\n\nOther Requirements:\nStrong practical background in web application security, including common exploit classes, pentesting or AppSec-style testing, WAF and anti-bot constraints, and production-safe investigation of complex access and multi-role workflows.\n\nCloud platforms (AWS, Azure, or GCP) and Infrastructure as Code tools such as Terraform, Ansible, or CloudFormation.\n\nHands-on expertise with queries and troubleshooting in observability platforms such as Datadog, including building dashboards.\n\nScripting and automation skills in Bash & Python, with a history of building reusable tooling and workflow automations, with relevant examples.\n\nDemonstrated self-direction and continuous learning, evidenced by certifications (e.g., AWS Solutions Architect Professional, CKA, RHCE, or equivalent), technical writing, open-source contributions, or leadership of internal technical initiatives.\n\nProven experience operating in complex enterprise environments, including multi-tenant architecture with knowledge of industry or government compliance requirements.\n\nSolid understanding of database concepts across relational, NoSQL, and Graph based systems, including query development and general administration in production contexts.\n\nPreferred Qualifications\nSubstantial background in cybersecurity, including hands-on experience with threat detection and response, pentesting, vulnerability management programs, encryption standards, and compliance frameworks such as SOC 2, FedRAMP, or GDPR.\n\nFull-stack development proficiency in Python, JavaScript, or Go, with a portfolio of custom internal tooling, support automation platforms, or customer-facing integrations built to production standards.\n\nTravel Required\nWe are a fully remote company, and this job may require up to 5% of travel to be successful.\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: $117,000 - $145,000 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, hair length 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":9581,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","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":"2026-07-20T19:07:49Z"}],"visa":[],"liveness":{"score":12,"band":"cold","label":"Long shot","p_open":1,"p_active":0.429,"p_room":0.28,"age_days":88,"expected_fill_days":39,"reasons":["conf:0","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":145000,"is_top_pay":false},"html_url":"https://alion.io/job/horizon3-staff-technical-support-engineer","json_url":"https://alion.io/job/horizon3-staff-technical-support-engineer.json","meta":{"generated_at":"2026-10-18T00:27:19Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":855,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3088},"rest":"https://alion.io/mcp/rest/get_company?id=3088"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhorizon3-staff-technical-support-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fhorizon3-staff-technical-support-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fhorizon3-staff-technical-support-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/horizon3-staff-technical-support-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhorizon3-staff-technical-support-engineer"}]}