Full Stack Software Engineer

About Qevlar AI

Qevlar is B2B SaaS startup that strives to massively increase the productivity of cybersecurity teams. We develop AI Cybersecurity Analysts that augment Security Operations Centers (SOCs). Since our creation 2 years ago, we have:

• Raised €14 million in seed funding led by EQT Ventures and Forgepoint Capital
• Been incubated both by Microsoft (genAI studio) and Meta (AI program)
• Deployed our solution to Global 500 companies and leading MSSPs in EMEA and NA (Equans, Nomios, Globalconnect, Almond)

We're now looking for our first full-time (CDI) People Operations Specialist to help us structure, support, and elevate our fast-growing team in Paris.

What will you do

You’ll play a critical role in evolving our core web platform — both frontend and backend — with a focus on performance, API design, and product integrations. This is a backend-heavy role with a full-stack flavor.

Backend Scalability & API Performance

• Refactor REST APIs to reduce over-fetching and inefficient database calls.
• Push async processing across high-latency parts of the stack.
• Introduce structured pagination, connection pooling, or background jobs

Database Modeling & Architecture

• Enhance scalability and maintainability.
• Debug, refactor, and optimize slow queries.

Integrations & Observability

• Hook up tools like PostHog, Mixpanel, and Sentry for better product & tech insight
• Build integrations with external APIs for internal tools or client-facing features

Who you are

• Software engineer with 5 years' hands-on experience
• A strong Python developer with hands-on experience using SQLAlchemy in production environments
  
• Proficient with modern frontend frameworks like Vue.js (or similar single-page application frameworks)
  
• Comfortable building responsive, user-friendly interfaces with solid CSS skills — flexbox, CSS variables, and utility-first frameworks are second nature to you
  
• Highly experienced with PostgreSQL, with a strong grasp of relational database design
  
• A query performance expert — you understand indexing, execution plans, JOIN optimization, and caching at a deep level
  
• Security-conscious, with working knowledge of JWT, SSO, and OWASP top 10 best practices
  
• Skilled at designing scalable, well-structured REST APIs
  
• A collaborative engineer who values clean code, strong documentation, and working closely with teammates across disciplines

What we offer

• Work on meaningful problems with real-world impact in cybersecurity
• join a small, fast-moving team where you'll own your work
• Shape the future of a product already making noise in AI + Security circles
• Opportunity for equity and early ownership
• Remote-friendly, flexible work culture.

Hiring process

1. Introduction Call with Aleksandra
2. Technical Interview
3. Case Study
4. Meet the Team!