Engineering Tech Lead (Product Security)

Jobgether; France; Remote; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Remote-first environment

Equity and bonus opportunities

Premium insurance coverage

Flexible working schedule

Remote-work flexibility

Global collaboration

Technical ownership

Open-source environment

Job summary

Jobgether, on behalf of a partner, seeks an Engineering Tech Lead (Product Security) in France to lead the secure development of Kubernetes and cloud-native infrastructure. This remote-first team writes production Go code and carries out threat modeling, penetration testing, and secure design reviews.

You will own security practices across the software lifecycle, guide engineers, remediate vulnerabilities, and clearly communicate risks to stakeholders.

Qualifications

• Hands-on penetration testing of production products and infrastructure.
• Deep Kubernetes security expertise, including container isolation and RBAC.
• Strong knowledge of Kubernetes internals and components.
• Proficiency in Go and production-grade software development.
• Experience with threat modeling and secure system design.

Responsibilities

• Perform hands-on penetration testing to identify vulnerabilities in Kubernetes environments.
• Lead vulnerability triage, remediation planning, and patch verification.
• Review features and designs early to mitigate security risks.
• Analyze Kubernetes attack surfaces and harden API server, RBAC, and controllers.
• Collaborate with engineers to integrate secure development practices.
• Contribute production Go code while ensuring security and reliability.

Skills

Penetration testing

Kubernetes security

Kubernetes internals

Go programming

Threat modeling

Secure design reviews

Code reviews

Communication of risks

Ownership

Collaboration

Vulnerability lifecycle

Tools

controller-runtime

Kubebuilder

client-go

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Engineering Tech Lead (Product Security) based in France.

Join a remote-first engineering team building next-generation Kubernetes and AI infrastructure for organizations operating at scale. In this hands-on technical leadership role, you’ll help secure infrastructure software by identifying vulnerabilities, conducting penetration tests, and strengthening security across cloud-native products. You’ll bring deep Kubernetes expertise to threat modeling, security-sensitive design reviews, and vulnerability remediation, helping engineers build secure systems from the ground up. Working closely with engineering teams, you’ll guide technical decisions, improve security practices, and ensure vulnerabilities are addressed through verified fixes and patched releases. You’ll also contribute production-quality Go code while helping protect container isolation and critical infrastructure components. This is an opportunity to shape product security in a fast-growing, open-source-oriented environment where ownership, technical excellence, and measurable impact matter.

Accountabilities

• Penetration Testing and Security Assessments: Conduct hands-on penetration testing of products and infrastructure to identify and exploit vulnerabilities, with particular focus on Kubernetes environments, container isolation, and cloud-native systems.
• Vulnerability Management: Investigate, triage, prioritize, and remediate security vulnerabilities in application code and dependencies, taking ownership from discovery through patch development, release, and verification.
• Threat Modeling and Secure Design: Review new features and security-sensitive architectural designs early in the development lifecycle, identify potential attack paths, assess risks, and recommend practical mitigations.
• Kubernetes Security: Analyze Kubernetes attack surfaces, including container breakout risks, privilege escalation, role-based access control (RBAC), admission control, and security policy configurations.
• Kubernetes Internals and Infrastructure Security: Apply a strong understanding of Kubernetes components, including the API server, controllers, admission mechanisms, and kubelet, to identify weaknesses and strengthen system security.
• Code and Architecture Reviews: Participate in code reviews, design discussions, and technical reviews to identify security issues and promote robust engineering practices.
• Secure Engineering Practices: Work with engineers across the organization to embed secure defaults, security checks, and threat-aware development practices into the product lifecycle.
• Production Software Development: Build, maintain, and improve production-grade software using Go, contributing directly to secure and reliable infrastructure components.
• Security Communication and Collaboration: Explain vulnerabilities, attack scenarios, and remediation priorities clearly to engineering stakeholders, helping teams make informed security decisions.
• Continuous Security Improvement: Strengthen security processes, vulnerability handling practices, and engineering standards as the platform and its threat landscape evolve.

Requirements

• Hands-on experience conducting penetration tests and identifying and exploiting vulnerabilities in production systems.
• Deep practical expertise in Kubernetes security, particularly container isolation, container breakout scenarios, privilege escalation, RBAC, and security policy best practices.
• Strong understanding of Kubernetes internals, including the API server, admission control, controllers, RBAC, and kubelet.
• Experience building Kubernetes controllers or operators using tools such as controller-runtime, Kubebuilder, or client-go is highly relevant.
• Demonstrated experience with threat modeling, secure system design, and reviewing production architectures for security risks.
• Proven ability to investigate and remediate vulnerabilities in software you work on, including familiarity with the CVE lifecycle, coordinated vulnerability disclosure, and security patch releases.
• Professional experience building and shipping production systems with Go as a primary programming language.
• Strong software engineering fundamentals, including code review, debugging, secure development practices, and practical risk assessment.
• Ability to communicate complex technical risks and security recommendations clearly to engineers and other stakeholders.
• A proactive, independent approach to problem-solving, with the ability to take ownership of security issues and drive them through to resolution.
• A collaborative mindset and commitment to improving security practices across engineering teams.

Nice to have

• Certified Kubernetes Security Specialist (CKS) certification.
• Experience working at an early-stage startup or in a rapidly growing organization where autonomy, adaptability, and initiative are essential.
• Familiarity with open-source development and cloud-native infrastructure projects.

Benefits

• Competitive compensation: Annual salary for Canada-based candidates ranging from CA$140,000 to CA$200,000, depending on experience and location.
• Equity and bonus opportunities: Compensation package includes equity and a bonus opportunity.
• Premium insurance coverage: Health, dental, vision, and life insurance, with plans for eligible dependents; coverage may vary by country.
• Flexible working schedule: Flexibility to manage your schedule around personal commitments, with an emphasis on results rather than fixed working hours.
• Remote-work flexibility: Remote-first working arrangements with flexibility in where you work.
• Global collaboration: Work with a distributed team of infrastructure engineers on challenging, high-impact technical problems.
• Technical ownership: Opportunity to influence product security, infrastructure architecture, and secure engineering practices.
• Open-source environment: Contribute to a culture that values open-source technology, continuous learning, and innovative approaches to complex engineering challenges.