Cyber Security Operations Center (CSOC) Analyst (English Speaker)

BTSE btse.com Open

Remote Jakarta Full-time Mid-level Security Operations & Analysis

At a glance

Mid-level Security Operations & Analysis role at BTSE. Remote, Indonesia · full-time.

Pay not stated Security Operations & Analysis salary

RoleSecurity Operations & Analysis

SeniorityMid-level

LocationJakarta

WorkplaceRemote

EmploymentFull-time

PostedNov 2, 2026

Role brief

remoteroles summary, based on the employer's posting.

What you'll do

Triage security alerts across SIEM, EDR/XDR, WAF, email and cloud logs, coordinating with the MSSP when needed
Carry incidents from initial review through resolution, then capture lessons in playbooks and revised detection logic
Build and test SIEM rules, checking that existing detections trigger for the threats they are meant to catch
Turn threat feeds and hunting results, such as lookalike domains or unusual sign-ins, into clear response actions
Help launch insider-threat monitoring and verify log sources and detection tools are connected and functioning

What you bring

A bachelor's degree in cybersecurity, IT, computer science or a related discipline
Three to four years in SOC work or a comparable security monitoring and detection role
Practical SIEM experience with rule development, detection testing, alert handling, case management and raw-log review
Working ability in Python or similar scripting to adjust existing scripts for automation or log parsing
Knowledge of attack methods, incident response, cloud security and operating systems, with experience documenting incident playbooks

Who this fits

This mid-level role suits someone who can take security incidents through to resolution and improve detections, rather than only process an alert queue. The position is remote in Jakarta. Chinese-language ability may be needed when working with internal stakeholders and regional partners.

From the employer

About BTSE: BTSE Group is a global leader in fintech and blockchain technology, anchored by three core business pillars: Exchange, Payments, and Infrastructure Development. Serving over 100 corporate clients worldwide, we provide white-label exchange and payment solutions. Our offerings encompass everything from exchange infrastructure hosting and development to custody, wallets, payments, blockchain integration, trading, and more. We are looking for talented professionals in marketing, operations, customer support, and other departments. The roles offered may be on-site, remote, or hybrid, in collaboration with our local partner. About the Opportunity: We are seeking a Cyber Security Operations Center (CSOC) Analyst with 3-4 years of experience in security monitoring, detection engineering, and incident response to join a lean, high-ownership security team at a cryptocurrency exchange. You will work closely with our MSSP and internal engineering team to close gaps between raw alerting and actual risk reduction — turning threat intel feeds into action, validating that our detections actually work, and helping build out new programs like insider threat monitoring. This is not a pure alert-queue role: you'll be expected to write and improve detection logic, document your work so it survives beyond you, and take ownership of incidents end-to-end rather than handing off after triage.

Responsibilities:

Perform triage, analysis, and escalation of security alerts across SIEM, EDR/XDR, WAF, email security, and cloud log sources, coordinating with our MSSP where relevant.
Own incidents end-to-end — triage through resolution through "what changed afterward" — and turn that work into documented playbooks and updated detection logic, not just closed tickets.
Develop, tune, and validate SIEM detection rules (ES|QL/EQL/KQL or equivalent), including running detection validation exercises against existing use cases to confirm they actually fire.
Convert threat intelligence feeds and scheduled hunting queries (e.g., lookalike domain alerts, anomalous auth events) from passive detection into defined, actionable response — closing the loop between "we saw it" and "we did something about it."
Support the build-out of an insider threat monitoring program, including identity and privileged-access anomaly detection.
Understand our detection tooling and log source pipelines (maintained day-to-day by our MSSP) well enough to confirm they're onboarded correctly and actually working — you're not expected to build or maintain this tooling yourself, but you need to be able to verify it.
Track and report CSOC performance metrics (MTTD/MTTR, false-positive rates, MSSP SLA adherence) to support continuous improvement of operations.
Write and maintain operational documentation, playbooks, and detection rule rationale so institutional knowledge isn't concentrated in one or two people.
Contribute to automation of repetitive triage and enrichment work (scripting, workflow tools) to reduce manual toil across the team.
Collaborate with internal stakeholders and regional partners, where Chinese language skills may be required.

Requirements:

Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related field.
3-4 years of experience in a Security Operations Center (SOC) or equivalent security monitoring/detection engineering role.
Hands-on experience with SIEM tools, including: 1. Detection rule and use case development, and the ability to reason about whether a rule actually detects what it claims to (detection validation mindset, not just rule-writing). 2. Query/rule-writing experience in ES|QL, EQL, KQL, or equivalent. 3. Alert triage, enrichment, and case management with ticketing systems. 4. Comfort reading raw logs (auth events, CloudTrail-style audit logs, process trees) without relying solely on pre-built dashboards.
Working knowledge of Python or similar scripting for automation, log parsing, or extending existing tooling — enough to pick up and modify scripts someone else wrote, not build from scratch.
Knowledge of common attack techniques, malware behavior, and network security principles, with familiarity mapping detections to MITRE ATT&CK.
Familiarity with incident response frameworks (e.g., NIST, SANS) and a track record of writing playbooks or documentation from real incidents.
Exposure to identity/IAM log analysis or insider threat / UEBA concepts is a strong plus, given active program build-out.
Good understanding of cloud security (AWS, Azure, or GCP) and comfort across varied operating systems (Windows, Linux, macOS).

Nice to Haves

Familiarity with atomic-level adversary emulation using Atomic Red Team or equivalent framework, for the purpose of validating that detections fire as expected.
Effective communication and documentation skills.
Chinese language proficiency (reading, writing, and/or speaking) is a strong advantage.
Relevant certifications (e.g., CISSP, GCIH, GCFA, CompTIA Security+, CySA+, CEH, or similar) are desirable.