Halcyon

Monitor and analyze security events to detect and respond to potential threats. Collaborate with various teams to improve product resilience and ensure effective communication during security events. | Candidates should have over 10 years of experience in relevant cybersecurity roles, with a strong focus on malware analysis and detection engineering. Proficiency in various analysis tools and scripting languages is essential. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. The Role: Halcyon’s mission is to empower our customers with a solution that defeats ransomware, makes "ransomware history", and ensures operational resilience. To support this mission, we are seeking a highly skilled Threat Analyst with deep technical expertise in malware reversing, detection engineering, and security operations. This role is critical to advancing our detection, prevention, and response capabilities, ensuring broad coverage of emerging threats, eliminating false positives, and effectively responding to these threats. The right candidate will ensure that our customers are kept safe from the latest ransomware without impacting legitimate business operations. Responsibilities Monitor and analyze security events to detect, investigate, contain, and escalate potential threats. Correlate data across multiple sources to identify malicious activity and patterns. Triage and assess events to determine impact, contain incidents, and drive threat remediation. Reverse engineer Windows PE files and other malicious binaries using static and dynamic techniques to uncover capabilities, persistence methods, and indicators of compromise (IOCs). Design, develop, and maintain internal tools to support threat triage, correlation, and research (log parsers, incident tracking systems, custom sandboxes, etc.). Conduct malware analysis in disassemblers, debuggers, and sandbox environments to understand payloads, infection chains, and evasion techniques. Research and track evolving ransomware techniques, publishing findings to improve detection logic and response processes. Collaborate closely with Customers, Incident Response, Engineering and Customer Success to improve product resilience and ensure smooth customer communication during security events. Skills and Qualifications 10+ years of combined experience in reverse engineering, detection engineering, threat research, incident response, or security operations related roles. High proficiency in malware reversing, with demonstrated expertise in analyzing Windows PE files, unpacking obfuscated samples, and extracting behavioral and static indicators. Experience with Artificial Intelligence / Machine Learning methodologies and their practical use cases to enhance cybersecurity strategies and operational efficiency. Hands-on experience with Yara, Python, and scripting languages (PowerShell, Bash/Shell, Batch). Advanced knowledge of static and dynamic analysis using tools such as IDA Pro, Ghidra, x64dbg, WinDbg, Cuckoo or similar sandboxes. Familiarity with EDR evasion techniques, persistence mechanisms, and exploitation methods. Cloud Service Provider experience preferred (cloud log analysis, security, threat hunting in cloud environments). Proven track record in cyber threat research, malware analysis, or security operations. Strong collaboration and communication skills, with the ability to explain technical findings to both technical and non-technical stakeholders. Benefits: Halcyon offers the following benefits to eligible employees: Comprehensive healthcare (medical, dental, and vision) with premiums paid in full for employees and dependents. 401k plan with a generous employer contribution. Short and long-term disability coverage, basic life and AD&D insurance plans. Medical and dependent care FSA options. Flexible PTO policy. Parental leave. Generous equity offering. The Company reserves the right to modify or change these benefits programs at any time, with or without notice. Base Salary Range: $175,000 - $200,000, 10% bonus, and equity. In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.

Manage client accounts, develop new business opportunities, maintain strong client relationships, and negotiate sales agreements. | Requires experience in account management, business development, client relationship management, strong communication and negotiation skills, and fluency in English. | Required skills: Account Management, Business Development, Client Relationship Management, Communication Skills, Negotiation, Sales Required languages: English

Lead and coach sales teams, develop business strategies, manage Salesforce CRM, track KPI metrics, and ensure organizational effectiveness. | Requires strong business development, coaching, Salesforce expertise, team leadership, written communication, cybersecurity knowledge, KPI metrics tracking, mentoring, and organizational skills. | Required skills: Business Development, Coaching, Salesforce, Team Leadership, Written communication, Cybersecurity, KPI Metrics, Mentoring, Organizational Skills Required languages: English

Manage full AR and AP cycles, oversee tax compliance, process vendor payments and reimbursements, forecast cash flow, and support audit preparation. | 3+ years accounting experience, degree or equivalent, hands-on experience with Bill.com, Salesforce, Avalara, Rillet, Expensify, strong organizational and communication skills. | What we do: Halcyon is the industry’s first dedicated, adaptive security platform that combines multiple proprietary advanced prevention engines along with AI models focused specifically on stopping ransomware. Who we are: Halcyon was formed in 2021 by a team of cyber industry veterans after battling the scourge of ransomware (and advanced threats) for years at some of the largest global security vendors. Comprised of leaders from Cylance (now Blackberry), Accuvant (now Optiv), Fireye and ISS X-Force (now IBM), Halcyon is focused on building products and solutions for mid-market and enterprise customers. As a remote-native, completely distributed global team, we recognize great talent can exist anywhere. We invite you to apply to a job you’re interested in and we'll work a plan to meet your needs. We’re looking for an Accounting Operations Specialist to join our Finance team. Reporting directly to our VP of Accounting, Jackie Fenn, this role will own the full Accounts Receivable and Accounts Payable cycles—including invoicing, collections, vendor payments, reimbursements, and cash flow forecasting. You’ll also oversee tax compliance in Avalara and play a key role in strengthening accounting operations as Halcyon scales. What You’ll Do • Take full ownership of AR & AP cycles. • Review contracts in Salesforce/ERP; generate accurate invoices and manage collections. • Oversee sales tax compliance via Avalara (all registrations current). • Process ~200 vendor bills/month via Bill.com; prepare timely vendor payments. • Review Expensify employee expense reports; process reimbursements. • Forecast weekly cash collections/payments; communicate expected flows to the team. • Reconcile daily cash activity to ERP and partner with the Senior Accountant to resolve discrepancies. • Support annual audit preparation and participate in ad-hoc accounting projects. What We’re Looking For • 3+ years in Accounts Payable, Accounts Receivable, or general accounting. • Degree in Accounting or equivalent experience. • Hands-on experience with Bill.com, Salesforce, Avalara, Rillet, and Expensify strongly preferred. • Detail-oriented with strong organizational skills and ability to manage volume. • Strong communicator who can partner across Finance, Sales, and external vendors/customers. Compensation Range • $75,000 – $95,000 annually In accordance with applicable state and federal laws, the range provided is Halcyon’s reasonable estimate of the base compensation for this role. The actual amount may differ based on non-discriminatory factors such as experience, knowledge, skills, abilities, and location. Base pay is one part of the total package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and equity in the Company. We understand it takes a diverse team of highly intelligent, passionate, curious, and creative people to develop the exceptional product we are building. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity employer.