Role Description The IT Senior Systems Engineer is responsible for designing, implementing, maintaining, and supporting the organization’s IT infrastructure and enterprise systems. This role requires a skilled technical professional with hands-on experience in Linux, Windows, Network, Cloud technologies, cybersecurity best practices, and troubleshooting complex technical issues. The ideal candidate is proactive, collaborative, and capable of supporting both day-to-day operations, strategic IT initiatives, service delivery, and maintaining positive client and vendor relationships. - Work closely with managed service providers (MSP) to develop and deliver complete Linux, Windows and cloud architecture solutions. - Resolve complex issues in creative, efficient, and effective ways. - Responsible for the overall Linux, Backup and Disaster Recovery (DR) technologies in public/private cloud. - Manage day-to-day operations including asset inventory, configuration management, security controls, systems health, and third-party infrastructure app integrations. - Willing to work additional or irregular hours as needed and allowed by local regulations. - Work in accordance with corporate and organizational security policies and procedures. - Understand personal role in safeguarding corporate assets and take appropriate action to prevent and report any compromises of security within scope of position. - Perform other responsibilities as assigned. - Analyze current business and technology practices, user needs, and workflow processes for improvement. - Work with MSP on supporting Global IT. - Represent the team as a participating member of designated committees. - Serve as a subject matter expert associated with content, processes, and procedures associated with Infrastructure systems. - Participate in 24x7 on call rotation and be available for after-hours support as needed. - Participate in enterprise disaster recovery exercises. Qualifications - Bachelor's degree in Information Technology, Computer Science, Software Engineering or related field. - Minimum 5 years of Linux, Windows and Cloud Systems Engineering work experience. - Extensive knowledge and familiarity with various Linux distros in Azure, Oracle Cloud Infrastructure (OCI), Alibaba Cloud. - Experience with DNS, DHCP, SMTP, SFTP, PAM, SMB/NFS FileShare, Postfix, scripting, etc. - Applicants must be authorized to work in the United States without the need for current or future employer-sponsored work authorization.

Role Description Arcarithm is currently seeking a Systems Test Engineer (NGMD) to assist with the organization and participation in Flight and Ground Tests. The candidate will be responsible for: - Identifying required resources. - Developing and understanding mission objectives for the system(s) under test. - Developing data archival and analysis plans. - Developing post-mission reports. - Understanding and participating in various event board approval structures, including MDIOC and BMDSS support processes, the MDA/BC approval chain, and National Team engineering boards (PERB, CEAT). - Supporting approval boards from other organizations sponsoring tests (e.g., JIAMDO, AFSPC, JFCC-IMD). - Interacting with JAT, MDDC, and other related organizations. - Supporting the operation of C2BMC, including system configuration, system operation, display screen navigation, and system operations. - Performing configuration management and control of test resources, articles, and tools for data collection during events. - Serving as the I&T liaison to other C2BMC test participants and MDA/BCT test managers. - Coordinating with project leads of various experiments to ensure seamless event execution across the entire I&T mission. - Developing and maintaining the test architecture, including all articles under test. - Developing supplemental procedures required to ensure successful test execution. Qualifications - Generally has 3+ years of related experience and may have a post-secondary degree or training in a related discipline. - Current TS clearance with the ability to obtain SCI. - Understanding of systems engineering processes and logistics principles, including artifact generation (e.g., specifications, Interface Control Documents, System Architecture Descriptions, Use Cases, Trade Studies). - Experience with network applications and networking concepts. - Experience with military systems used in missile defense, including AN/TPY2, SBIRS/BOA, Aegis, THAAD, Patriot, and SBX, including their operational characteristics. - Experience working in an integrated team environment with systems, software, and specialty engineers to develop solutions using NT or similar processes and methods. - Demonstrated ability to develop briefings and communicate complex ideas in writing. - Comfortable working in a team environment. - Strong verbal and written communication skills. - Understanding of systems engineering, systems design, and development. - 2+ years of experience in a related engineering environment with experience in systems-of-systems definition and integration. - Ability to analyze high-level needs and refine them into an integrated set of requirements leading to a fielded product. - Ability to lead portions of activities and direct the work of fellow engineers. - Ability to write and implement engineering plans within a project. - Previous experience demonstrating the technical skills and responsibilities listed above. Requirements - Familiarity with Ballistic Missile Defense Systems. - Unix command line. - Bash scripting. - Perl scripting. - Linux. - Statistics. - Technical writing and test procedure creation. - Communication and presentation skills. - Space/C2BMC/Missile Defense experience. - Agile development. - Automated testing frameworks. - Requirements and Verification Spreadsheet analysis. - Analysis tools, including Java software or Python scripting development. - Conducting post-processing and quantitative/qualitative analysis of collected data. - Developing action plans based on analysis of data. - Documenting software deficiency reports. - Presenting analysis results and plans of action orally and/or in written format (e.g., slides, annotated slides, test report documents). Benefits - Comprehensive health insurance options. - Generous 401K plan. - Competitive salaries. - Continuous career growth opportunities. - Flexible schedules including remote work. - Mentoring and performance incentives. Company Description Arcarithm is an Equal Opportunity employer and all qualified candidates will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, genetic information, citizenship, ancestry, marital status, protected veteran status, disability status or any other status protected by federal, state, or local law. Arcarithm participates in E-Verify.

Role Description We're a remote-first company of ~250 people across 50 countries, and every one of them gets hired, onboarded, and offboarded through systems that need to talk to each other reliably. Today that happens with more human glue than we'd like. You'll own workforce identity and endpoint security end to end: the architecture, the automation, and the day-to-day. The centrepiece is making our HRIS the single source of truth for identity — when someone is hired, changes role, or leaves, the right access should appear or disappear without a ticket, and we should be able to prove it to an auditor. This is a hands-on Lead-level IC role. You'll design the model and also build it. What you'll own - Identity lifecycle and HRIS as source of truth - Design and build joiner/mover/leaver automation driven by our HRIS (Workable) - Own the entitlement model: which groups, roles, and attributes determine access to what, and how role changes propagate - Handle cases that break naive automation — contractors and EOR workers, future-dated changes, internal transfers, rehires, leaves of absence, and country-specific variations in how employment is recorded - Access governance - Own how access is granted, reviewed, and revoked across our core SaaS estate: Okta, Google Workspace, Slack, Confluence/Jira, Workable, our HRIS, and ~20 other apps - Run access reviews and certification campaigns that hold up under SOC 2 and ISO 27001 audit - Build self-service request-and-approval flows - Bring the long tail under management — including apps with no SCIM support - Endpoint and network security - Own our device fleet in Jamf (macOS): baseline configuration, patch and OS-update compliance, disk encryption, and fleet visibility - Tie device posture to access — Okta Device Trust or equivalent - Own secure remote access to internal systems - Security operations and audit - Be the identity and endpoint interface for SOC 2 and ISO 27001 - Instrument alerting on suspicious authentication, MFA changes, privilege escalation, and drift in device compliance - Write the runbooks Qualifications - Deep hands-on Okta experience as an administrator and builder - Experience building HRIS-driven joiner/mover/leaver automation - Experience running an access-governance program that survived a SOC 2 or ISO 27001 audit - Practical endpoint management experience — Jamf or equivalent - Ability to explain access decisions in terms of risk and business need Requirements - Nice to have: Ability to write code (Python, Go, or TypeScript) - Experience with an IGA platform — Okta Identity Governance, ConductorOne, Lumos, or similar - ZTNA / SASE experience: Tailscale, Tailscale SSH, Netskope, Cloudflare Access, Zscaler - Experience in a globally distributed, remote-first company - Familiarity with the EOR / global employment space - Exposure to customer-facing identity (Auth0, OIDC, SAML) Benefits - Fully remote role - Opportunity to work on global-scale systems and products - Exposure to international teams and modern engineering practices - High ownership and autonomy in a fast-growing startup environment - A strong culture grounded in speed, ownership, trust, transparency, customer obsession, and excellence - Real problems, global impact, and the chance to help redefine how the world works

• Serve as a liaison between operational stakeholders and the Information Systems Department to ensure business needs are effectively represented. • Support the ongoing operations, optimization, and enhancement of assigned Epic applications. • Analyze business processes, workflows, and system requirements to identify opportunities for improvement. • Collaborate with operational leaders, end users, application teams, and technical resources to understand business needs and develop effective solutions. • Participate in requirements gathering, workflow analysis, system design, testing, issue resolution, and implementation activities. • Evaluate the impact of Epic system changes on existing workflows and downstream processes. • Assist with troubleshooting application and workflow issues and coordinate appropriate resolution. • Support testing activities, including test planning, execution, validation, and documentation. • Provide recommendations regarding system functionality, workflow optimization, and process improvement. • Maintain appropriate documentation related to requirements, workflows, system changes, testing, and operational processes. • Support Epic upgrades, enhancements, implementations, and other system initiatives as assigned. • Participate in meetings with business and technical stakeholders and communicate project status, risks, issues, and recommendations. • Ensure solutions support organizational objectives, operational efficiency, and a positive end-user experience.