Platform Security Engineer (m/f/d)

Full Time Lead

Job description

Set a new pulse for healthcare!

We are looking for a Platform Security Engineer to join the Security team at Doctolib.

Your mission will be to protect sensitive healthcare data while enabling rapid, secure innovation. You will be responsible for securing Doctolib's cloud infrastructure and application ecosystem, combining multi-cloud security expertise with hands-on platform engineering — contributing directly to the safety of millions of patients and care teams who rely on our platform every day.

Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients.

What you'll do

Your responsibilities include but are not limited to:

Own a platform security workstream end to end, from architecture to enforcement: scope it with your tech lead, design the control, roll it out progressively (report-only, then enforce), handle exceptions, and see it through to full coverage. Typical examples: hardening IAM across our AWS accounts, tightening cluster admission policies, or closing a class of misconfiguration for good.
Ship every change as code: Terraform and GitHub pull requests, peer-reviewed and always reversible. No console clicking, no undocumented state.
Harden our cloud and infrastructure baseline and keep it hardened: IAM permissions and access reviews, secrets management, network and cluster guardrails, CI/CD and supply chain controls — building the guardrails and driving remediation of what they surface with platform and engineering teams, turning recurring findings into automation rather than tickets.
Investigate and improve: lead incident investigations on the platform perimeter end to end, and continuously improve detection rules and response playbooks in our Elastic SIEM.
Work in the open: write clear technical notes, drive adoption of your changes with the engineering teams they affect, and grow through code review and pairing with the rest of the team.

Who you are

Before you read on: if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply.

You'll be a great fit if you:

Have 1 to 3 years of hands-on experience in security engineering, security operations, SRE, infrastructure or platform engineering, including some exposure to a cloud environment (AWS, GCP or Azure) in production — an internship or apprenticeship in one of those roles counts.
Work daily with infrastructure as code and GitHub: you have written and shipped your own Terraform through reviewed pull requests, and you are comfortable operating and debugging workloads on Kubernetes.
Use AI coding assistants (Claude or equivalent) as a normal part of how you work.
Have carried at least one project through to production — security or not — and stayed with it past the first deployment until it was actually adopted.
Have solid fundamentals: Linux, networking, cloud, Kubernetes and development/scripting, a pragmatic mindset, the ability to make decisions under uncertainty and follow through, and strong written communication skills — you can carry a proposal from draft to cross-team adoption.
Are fluent in English (working language in writing); daily team conversations happen mostly in French, so being a French speaker or willing to learn is a strong plus.

It would be fantastic if you:

Have worked with a SIEM (Elastic, Splunk, or equivalent), writing and tuning your own queries.
Have done detection engineering, incident response, threat hunting, or CTFs.
Can point to public write-ups, open-source contributions, or a home lab.
Have prior experience in a regulated industry (healthcare, fintech, or public sector).

Life at Doctolib Tech

Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements.
Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.
We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here.

Want to learn more about our tech culture and environment? Visit the Doctolib Tech site.

What we offer

Free comprehensive health insurance (basic package) for you and your children
25 days of paid vacation per year, plus up to 14 days of RTT
Free mental health and coaching services through our partner Moka.care
Work from abroad for up to 10 days per year thanks to our flexibility days policy
Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib
A subsidy from the work council to refund part of the membership to a sport club or a creative class
50% reimbursement of your public transport subscription
ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave and 75% during the second, covered by Doctolib
Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth
For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support
Relocation support in case of international mobility
Access to the best AI tools for coding, development and dedicated training

Our interview process

Recruiter Interview
Feature Building Interview
System Design Interview
Behavioral Interview
At least one reference check

We want your experience to be clear, respectful, and transparent. Learn more about our hiring process on our candidate experience page.

Job details

Permanent position
Tech stack: Terraform, AWS, Kubernetes, Elastic SIEM
Full-time
Levallois-Perret, France
Hybrid work setup (up to 2 remote days per week)
Start date: as soon as possible

We welcome everyone

At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination.

The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, or disability.

To ensure equal opportunities, we invite you to exclude personal information (e.g., pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.

Join us in building the healthcare we all dream of!

Your data privacy

All information provided is processed by Doctolib for application management. For data processing details, click here: France. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.

Required skills

debugging full-time health insurance development java ci/cd project management security incident response relocation support accommodation github typescript ai inclusion python aws kubernetes fintech france kotlin internship gcp azure claude sre terraform apprenticeship linux pull requests diversity disability react native swift infrastructure as code permanent position cloud infrastructure networking incident investigation scripting siem splunk written communication public sector code review iam security operations rtt deployment decision making candidate experience caregivers international mobility lunch vouchers english fluency network security production environment adoption pragmatic mindset platform engineering application management technical notes gender rails security engineering data privacy mental health services start date extra days off threat hunting workloads equal opportunities secrets management french speaker web interfaces uncertainty supply chain security age paid vacation regulated industry psychological support development training hybrid work setup religion healthcare data non-discrimination work from abroad sexual orientation detection engineering pairing reference check cloud-native platform ai coding assistants ethnicity platform security engineer open source contributions system design interview coaching services detection rules recruiter interview public transport reimbursement behavioral interview cloud fundamentals flexibility days ctfs parentcare program doctogrowth remote days swile card application ecosystem multi-cloud security admission policies cluster security response playbooks elastic siem cross-team adoption home lab mobile app interfaces work council subsidy sport club creative class birth leave employee value sharing plan workers with disabilities remote policy adaptation medical reasons ai tools for coding feature building interview levallois-perret personal information exclusion hiring process support hr.dataprivacy(at)doctolib.com