Network & Systems Administrator
Manage, monitor, and secure core IT infrastructure, networks, servers, and cloud environments.
As a Network & Systems Administrator at Trade Sense, you will manage, monitor, and maintain our IT infrastructure, networks, servers, cloud services, user access, and security. You'll independently diagnose complex infrastructure issues, maintain high-availability network and server systems across Windows, Linux, Microsoft 365, and Azure environments, and enforce disciplined security and backup practices.
Interview Loop
Intro call
Alignment on role and expectations
Technical rounds
Role-specific
Practical working session
Practical problem solving
Founder conversation
Standards, ownership, culture
- Manage and troubleshoot LAN, WAN, Wi-Fi, VPN, routers, switches, firewalls, VLANs, DNS, DHCP, and TCP/IP networks.
- Install, configure, and maintain Windows and Linux servers.
- Manage Active Directory, Microsoft Entra ID, user accounts, groups, permissions, and access controls.
- Administer Microsoft 365 services including Outlook, Teams, SharePoint, and OneDrive.
- Support Microsoft Azure infrastructure including Virtual Machines, VNets, NSGs, Storage, Azure SQL connectivity, Key Vault, and monitoring.
- Configure and maintain secure VPN, SSH, SFTP, and remote-access connectivity.
- Monitor CPU, memory, disk, network, server availability, and system health.
- Troubleshoot network, server, authentication, application-connectivity, and infrastructure-related issues.
- Manage system backups and periodically validate recovery procedures.
- Perform operating-system updates, security patches, and infrastructure maintenance.
- Maintain endpoint security, firewall policies, and least-privilege access.
- Manage employee IT onboarding and offboarding, including systems and access provisioning.
- Maintain network diagrams, server inventories, access documentation, and standard operating procedures.
- Coordinate with ISPs, cloud providers, hardware vendors, and other technology vendors.
- Automate routine administration tasks using PowerShell, Bash, or Python where appropriate.
- 4+ years of hands-on Network and Systems Administration experience.
- Strong practical knowledge of Windows Server and Linux administration.
- Proficiency in Active Directory, Microsoft Entra ID, and Microsoft 365 administration.
- Experience supporting Microsoft Azure infrastructure (VMs, VNets, NSGs, Key Vault, Storage).
- Solid networking fundamentals: TCP/IP, subnetting, DNS, DHCP, VLANs, routing, and firewalls.
- Hands-on experience with VPN, SSH, SFTP, and secure remote-access configurations.
- Proven troubleshooting and diagnostic skills using tools like PowerShell, Bash, Wireshark, ping, traceroute, and curl.
- Disciplined approach to backups, disaster recovery, security patches, and documentation.
- Relevant certifications: CCNA / CCNP, CompTIA Network+ / Security+, Azure Administrator (AZ-104), RHCSA / RHCE, or Fortinet / Palo Alto.
- Experience in financial services, fintech, quantitative trading, or high-availability production environments.
- Scripting and automation experience with PowerShell, Bash, or Python.
- Experience managing infrastructure monitoring with tools like Azure Monitor, Prometheus, or Grafana.
This position is not primarily intended for candidates whose experience is limited to:
- Basic desktop or helpdesk support.
- Password resets and ticket handling without infrastructure ownership.
- Hardware installation only.
- IT asset management without system administration.
- Software installation without server or network administration.
- Vendor coordination without hands-on infrastructure troubleshooting.
Flat teams, clear ownership, evidence-based reviews.
Clear expectations, direct feedback, strong support.
Problems are solved systematically, not politically.
How To Apply
Apply using the form or email us. We read every application. If there's a fit, you'll hear back from us.
