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BigTree108

SOC as a service and security monitoring

SOC as a service and security monitoring: a managed SOC covering the hours you choose, SIEM deployment and migration, log onboarding, detection engineering, EDR and XDR operations, incident response retainers, vulnerability management, response automation and threat hunting, with dedicated SOC analysts and detection engineers for your team.

Security operations services we provide

  • Managed SOC

    Alerts from your SIEM and EDR triaged by analysts during your working hours or around the clock, confirmed incidents escalated to your on-call within agreed response times, and a monthly report on what was seen, what was closed and which detections were tuned.

  • SIEM deployment and migration

    Microsoft Sentinel in the Defender portal, Splunk Enterprise Security, Elastic Security, Google Security Operations or Wazuh set up with retention, access and cost limits planned before data arrives, and migrations between SIEMs with every detection rebuilt and tested on the new platform before the old one is switched off.

  • Log source onboarding

    Cloud audit logs, Entra ID and Okta sign-ins, Microsoft 365 and Google Workspace activity, firewalls, EDR and your own applications parsed into one schema such as ASIM, ECS or OCSF, with Cribl or the SIEM’s own pipeline dropping noise before it is billed.

  • Detection engineering

    Detection rules kept as code in Git, written in Sigma or directly in KQL, SPL or ES|QL, mapped to MITRE ATT&CK, tested against simulated attacks with Atomic Red Team before release, and tuned until analysts trust what fires.

  • EDR and XDR operations

    Microsoft Defender for Endpoint, CrowdStrike Falcon or SentinelOne rolled out to every server and laptop with tamper protection on, exclusions kept short and reviewed, and devices isolated from the console as soon as a compromise is confirmed.

  • Incident response retainers

    Terms agreed before anything happens: contacts, access, evidence handling and the hours we answer in. When an incident comes, containment, forensic collection with Velociraptor, eradication and a written report follow, and hours not spent on incidents go to readiness work such as playbook reviews and response exercises.

  • Vulnerability management

    Servers, containers, laptops and cloud resources scanned with Tenable, Qualys, Rapid7 or Microsoft Defender Vulnerability Management, findings ranked by exploitability using EPSS and CISA’s Known Exploited Vulnerabilities catalogue, and fix deadlines per severity tracked to closure with the owning team.

  • SOAR and response automation

    Sentinel automation rules and Logic Apps playbooks, Splunk SOAR, Tines or Torq enriching each alert, opening the ticket and paging the right person, with steps that disable an account or isolate a device waiting for an analyst’s approval.

  • Threat hunting

    Hunts that start from a hypothesis, a new threat report or an ATT&CK technique your detections do not yet cover, run across months of retained logs, each ending in a new detection rule or a written note of why the hypothesis did not hold.

Hire SOC analysts and detection engineers

  • Dedicated SOC analysts and detection engineers

    SOC analysts and detection engineers who join your team full time, work in your tools and process, and report to your lead. You interview them; we carry the Ukrainian contract, payroll, invoicing and leave.

  • Security operations projects

    A defined piece of security operations with a scope, a fixed plan and a named lead on our side who owns the result and reports progress in your channels.

  • Ongoing security operations

    Security operations as a continuing service: the same people every month, a backlog you prioritise, and hours you can see in our portal and on the invoice.

The dedicated team page explains how specialists join your team, and the outsourcing page covers project delivery, take-overs and how we charge.

Who works on your security operations

  • SOC analysts

    Alert triage and escalation, first and second line

  • Detection engineers

    Rules as code, tuning and attack simulation

  • SIEM engineers

    Platform set-up, log pipelines and ingestion cost

  • Incident responders

    Containment, forensics and incident reports

  • Threat hunters

    Hypothesis-led hunts across retained logs

How we run security operations

Before monitoring starts we agree what is covered, the hours, the response time for each severity and who in your team is called for what. Every alert type has a runbook, every escalation is written up in your ticketing system, and analysts work through named accounts with only the access triage needs, so their own actions appear in the audit log.

Detections are treated like code: version-controlled, reviewed, tested against simulated attacks and measured by how often they fire for nothing. Findings from penetration tests and incidents come back as new rules, so the same technique is caught next time. We watch our own devices the same way: our laptops are checked by an agent we wrote in Rust against our security baseline, on Windows, macOS and Ubuntu, with checks mapped to ISO 27001, CIS, Cyber Essentials, Essential Eight and SOC 2.

Other cloud, DevOps and security services

Cloud, DevOps and security overview

Questions about SOC and security monitoring

Which industries do your SOC analysts work in?

Mostly cybersecurity companies, on managed detection services and the detection content in their products; fintech, banking and insurance, where monitoring and incident reporting are regulatory duties under DORA and PCI DSS; industrial and energy companies watching office and plant networks; e-commerce, protecting customer accounts from takeover and fraud; SaaS companies whose customers expect continuous monitoring; and hosting and telecom providers and public-sector systems.

Do you monitor around the clock?

Yes, when you need it: business hours in your time zone, extended hours, or 24/7 coverage on a rota, agreed before monitoring starts. Each option comes with written response times per severity and a named escalation path into your team.

Can you work with the SIEM and EDR we already have?

Yes. Most engagements run on the client’s own Microsoft Sentinel, Splunk, Elastic, Google Security Operations or Wazuh and the EDR already deployed, so the data stays in your tenant and under your licences. Analysts sign in through accounts you issue and can revoke.

What happens when an analyst finds a real incident?

The analyst confirms it, calls your named contact within the agreed response time and, where you have approved it in advance, contains it: an account disabled, a device isolated, a token revoked. Incident responders then collect evidence, find the root cause and write the report, including what regulators and customers need to be told and by when.

How quickly can SOC analysts and detection engineers start?

When the right SOC analyst is available, the start is gated only by your interview and the NDA and IP assignment. Otherwise we run a search, which typically produces candidate profiles within two to three weeks, and nobody starts until you have said yes.

How do we hire SOC analysts and detection engineers through BigTree108?

Tell us the work, the seniority and the hours you need. We propose one or two people with their profiles, you interview them the way you would interview your own hire, and you sign one agreement with BIG TREE 108 LLC and receive one invoice a month.

Who owns the work they produce?

You do. Every specialist has a signed contract with BigTree108 that assigns all work product to the company, and our agreement with you assigns it onward. Code, designs and documents are delivered into your own repositories and tools, not kept where only we can change them.

Need a SOC or security monitoring?

Tell us what you run, which security tools you have and the hours you need covered. You get an answer within one business day: a coverage proposal, a plan for your SIEM, or candidate profiles.

Email hello@bigtree108.com How we respond