Security Engineer (Senior)

atFastwork Technology Co., Ltd.

Security Engineer (Senior)

Bangkok, Thailand (Full-time)


About Us
Fastwork is building the most powerful everything store for services in Southeast Asia, empowering freelancers and businesses to thrive together. As a fast-growing tech company, we are deeply committed to providing a secure and trustworthy platform for our users. We’re looking for adaptable, highly skilled, and proactive Security Engineers to join our engineering team. If you thrive in a dynamic, collaborative environment, love solving challenging security problems, and are passionate about safeguarding user data, we want you on our team.
At Fastwork, we value engineers who are T-shaped–experts in specific areas but flexible enough to tackle challenges across the security landscape. Our engineers don’t just mitigate threats—they think like product builders, focusing on securing the success of the platform and our users. You’ll have opportunities to experiment, innovate, and implement robust security measures across a diverse tech stack including Node.js, Golang, Flutter, Elixir, Svelte, Python, GCP, AWS, ArgoCD, and more.

Role Overview
As a Security Engineer, you’ll collaborate with talented teammates across engineering, product, and infrastructure teams to secure our platform, services, and users in a supportive and open working environment. You’ll take ownership of key security initiatives, evaluate potential vulnerabilities, and design solutions to protect against evolving threats. We’re looking for individuals with a scientist mindset—curious, experimental, and unafraid to explore new ideas while learning from both success and failure.

Key Responsibilities
  • Design, develop, and maintain security systems, tools, and best practices across the stack (frontend, backend, mobile, and infrastructure).
  • Identify, assess, and mitigate security vulnerabilities through proactive risk management and threat modeling.
  • Collaborate with product managers and developers to embed security into the software development lifecycle (SDLC).
  • Develop and enforce policies for secure coding, data protection, and incident response.
  • Implement robust authentication and authorization mechanisms.
  • Conduct regular security assessments, including penetration testing and code reviews.
  • Monitor, detect, and respond to security incidents using advanced tools and methodologies.
  • Enhance infrastructure security using Kubernetes, Docker, and cloud platforms (GCP, AWS).
  • Stay current on emerging threats, vulnerabilities, and security trends, and recommend actionable insights to improve defenses.
  • Champion security awareness across the organization, including training sessions and knowledge-sharing activities.
  • Ensure compliance with relevant security standards and regulations such as ISO 27001, PDPA, GDPR, SOC 2, or PCI DSS.

Basic Qualifications
  • Proven expertise in application security, cloud security, and infrastructure security.
  • Proficiency in securing systems built with technologies such as Node.js, Golang, Elixir, Python, React, Svelte, or Flutter.
  • Experience with tools like Docker, Kubernetes, and cloud services (GCP, AWS).
  • Strong understanding of cryptographic principles and secure communication protocols.
  • Familiarity with CI/CD pipelines and secure DevOps practices.
  • Hands-on experience with security tools for vulnerability scanning, penetration testing, and threat detection.
  • Deep understanding of database security, especially with PostgreSQL or other relational or non-relational databases.
  • Strong analytical and problem-solving skills with a security-first mindset.
  • Excellent communication skills and the ability to collaborate effectively in Agile teams.
  • Self-motivation, adaptability, and a strong work ethic.

Preferred Qualifications
We’re especially excited if you bring:
  • Experience leading security initiatives or mentoring other engineers in security best practices.
  • Expertise in compliance frameworks such as ISO 27001, PDPA, GDPR, SOC 2, or PCI DSS.
  • Advanced knowledge of security monitoring and incident response systems.
  • Strong system design skills with a focus on secure architectures and long-term trade-offs.
  • A proven track record of securing fast-paced, high-growth tech environments.
  • A passion for securing user-centric products and contributing to their success.
Perks & Benefits
Flat Structure

As we continue to grow fast, we strive to retain our culture where everyone is heard, contributes, and grows with the company.

Work-life Harmony

We believe that quality time outside of work is important to sustaining a healthy and happy lifestyle.

Remote Work

Hybrid-mode activated! It comes with the package: flexibility, focus and productivity!

Urban Office

One breath from Phrom Phong BTS. No sweat whatsoever! The office should also feel like a second home so we dedicated a lot of care and resources into building the best environment for you to wake up to every morning.

Fun Workshop

The best relationships are built over new experiences, that’s why we have workshops filled with a range of activities for you to look forward to and enjoy.

Game Tournament

It’s getting fun and competitive! Challenge doesn’t only have to come from work. Own the championship and show the peeps how great of a gamer (and player) you are.

Group Insurance

Health comes first, we know, don’t worry, we’ve got you covered.

Health & Wellness

Only a healthy army wins the war. We invest to take care of you from physical, mental and happiness-level. Adopted health & wellness applications plus activities to make sure everyone here is on cloud nine <3

Career Progression

Having full ownership and never stop exploring! We always make sure that everyone has the opportunity to lead and own. At Fastwork, you’ll never be just a number or a role, you will experience a career that makes the most of your passions and talents.

Experience required
  • any or no experience
Salary
  • Negotiable
Job function
  • Security
  • Engineering
Job type
  • Full-time

Company overview

Size:n/a
Industry:Information Technology
Location:Bangkok
Website:www.fastwork.com
Founded in:n/a
Ranking:4.5/5
Head office: 68/1, ซอยศรีบำเพ็ญ, แขวงทุ่งมหาเมฆ, เขตสาทร, กทม. 10120
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