Senior Software Engineer - Security & Infrastructure

PT Tiga Beruang Kalifornia (Mobitech); Jakarta Selatan; On-site; IDR 480,000,000 - 720,000,000; Full time

Job summary

Waresix is seeking a Senior Software Engineer focused on Security & Infrastructure to strengthen the security, reliability, and scalability of our technology ecosystem. The role emphasizes securing applications and infrastructure while maintaining performance and availability.

You will lead security hardening, threat assessment, and remediation across cloud platforms and CI/CD pipelines, collaborating with engineering to embed SSDLC practices and compliance standards.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field.
• Minimum 5 years of experience in Software Engineering with strong exposure to IT Security and Infrastructure.
• Strong understanding of software engineering fundamentals.
• Hands-on experience in securing existing applications and infrastructure.
• Ability to identify security gaps and recommend practical improvements.

Responsibilities

• Assess the security posture of existing applications, systems, and infrastructure.
• Identify security vulnerabilities, evaluate potential risks, and implement remediation plans.
• Strengthen application and infrastructure security through security hardening and best practices.
• Improve infrastructure reliability, scalability, availability, monitoring, and logging.
• Implement security practices across cloud infrastructure, CI/CD pipelines, and software development lifecycles.
• Collaborate with the Engineering team to integrate security into existing systems and development processes.
• Support security compliance initiatives, including SOC 2 and ISO 27001 (or equivalent standards).

Skills

Security & infrastructure

Cloud security

DevSecOps

SSDLC

IAM

CI/CD security

Monitoring & logging

Vulnerability assessment

Team collaboration

Education

Bachelor's degree in CS/IT/SE

Tools

AWS

GCP

Azure

SOC 2

Job description

Senior Software Engineer - Security & Infrastructure

Waresix is looking for a Senior Software Engineer – Security & Infrastructure to strengthen the security, reliability, and scalability of our existing technology ecosystem.

In this role, you will focus on identifying security vulnerabilities, improving infrastructure, and implementing security best practices across our existing applications and systems.

You will work closely with the Engineering team to enhance our overall platform security while ensuring system performance, availability, and reliability.

This role is ideal for an experienced engineer with a strong software engineering foundation and hands‑on expertise in infrastructure and application security.

What You'll Do

Assess the security posture of existing applications, systems, and infrastructure.

Identify security vulnerabilities, evaluate potential risks, and implement remediation plans.

Strengthen application and infrastructure security through security hardening and best practices.

Improve infrastructure reliability, scalability, availability, monitoring, and logging.

Implement security practices across cloud infrastructure, CI/CD pipelines, and software development lifecycles.

Collaborate with the Engineering team to integrate security into existing systems and development processes.

Support security compliance initiatives, including SOC 2 and ISO 27001 (or equivalent standards).

What We're Looking For

Bachelor's Degree in Computer Science, Information Technology, Software Engineering, or a related field.

Minimum 5 years of experience in Software Engineering, with strong exposure to IT Security and Infrastructure.

Strong understanding of software engineering fundamentals.

Hands‑on experience in securing existing applications and infrastructure.

Ability to identify security gaps and recommend practical improvements.

Comfortable balancing security implementation with software development needs.

Strong analytical, problem-solving, and collaboration skills.

Experience working with production systems and large‑scale applications is a plus.

Solid knowledge of:

Application Security and Infrastructure Security.

Cloud Infrastructure (AWS, GCP, or Azure).

DevSecOps and Secure Software Development Lifecycle (SSDLC).

Security Hardening and Vulnerability Assessment & Remediation.

Infrastructure Monitoring and Logging.

Security Architecture and CI/CD Security.

Identity and Access Management (IAM).

System Scalability and Availability.