Sebastien Correaud

Engineering Manager, hands-on

Profile

Engineering manager, hands-on. I lead a product squad at Heropay and still code. Background in testing, quality and data analysis. I build things to make life easier, full remote (France, United Kingdom) or onsite.

Experience

Staff Engineer · Heropay Fintech, Paris

– Present

Promoted from Senior Fullstack engineer to Staff Engineer after six months

  • Line manager of up to 9 engineers. Merged two squads into one under my supervision
  • Strong Customer Authentication (PSD2) and anti-fraud: Signicat integration, 2 million challenges, 20k+ users enrolled
  • Signup to activation funnel: onboarding rebuilt as signups grew 10x in 2025; median time to activate cut from 4+ days to under 12 hours
  • Continued and finished the billing migration from Hyperline to an in-house system
  • Technical foundations: long-running tasks, SQS queues, monitoring, E2E and reliable tests, tech migrations
  • Introduced coding agents in the squad's daily work

Career break

Twelve months of travel

Senior Fullstack engineer · Tomorro (formerly Leeway) LegalTech, Paris

–

Early stage SaaS company

  • ISO 27001 certificate: contributed, with a main part on the controls (Salesforce)
  • Salesforce CRM integration

Tech lead · Simplifield

–

  • Managed an Impact Team of 5 developers (Ukraine/France)
  • Facilitated workshops on the design of a new import system.

Lead developer + Data analyst · You2You (Yper) Full remote from Montpellier & Oxford

–

Real-time tracking, platform performance and data analysis

  • Coached junior colleagues as much in product creation (Agile method) as in technical learning
  • Created products using Lean Startup and Agile methods, product owner (January to August 2019)
  • Automated quality control with a large panel of tests — TDD, unit tests, E2E tests, visual regression tests…

Guest lecturer · University of Montpellier

–

Bachelor and Master degree, agile method and QA courses

Fullstack developer + QA engineer · 1001Pharmacies Montpellier

–

Rework from scratch of a high-audience marketplace

  • Facilitated agile workshops or team building. Scrum master of the product team
  • Created toolsets for performance optimization for a high-traffic marketplace (users, 1M€ / month)
  • Co-organized UX meetup with workshops and talks

IT Engineer · CGI (formerly Logica) Montpellier

–

Designed and developed mobile and web applications (PHP, JavaScript, both iOS and Android apps)

  • Security audits

Volunteering

Full stack developer · Aile Papillon

– Present

Aile Papillon is an association that helps patients with eating disorders and their families.

  • Design and develop new architecture (website, donation platform, secured system)

Fullstack developer + designer · Hack La Crise

–

Hackathon about the fight against the covid-19

  • Project leader for caregiver support project, development and UI/UX design

Education

BSc · University of Montpellier

–

E-Business Application Development

BTEC Higher National Diploma · University of Montpellier

–

Computer Science

Skills

Leadership
Line management · Hiring · Squad delivery · Scrum master · Product owner
Development
Typescript (Node.js, Nestjs, Nextjs, React) · Python, Flask · PostgreSQL/MySQL, MongoDB · Go (basics) · GraphQL · AI-assisted development (coding agents)
Tests
TDD · Unit (jest/vitest) · Functional (playwright/cypress) · Performance (k6)
DevOps
Docker · AWS · CI/CD (Circle CI/Github actions)

Languages

French
Native speaker
English
C1
Italian
B1

Interests

Travels
Europe · United Arab Emirates · United States
Sport
Basketball

References

Sebastien was involved and curious during the years when we worked together. He has been involved in front-end web development, as well as mobile evolutions, and is generally interested in web evolutions and their implications for the company.

Sabine Safi (CEO) - 1001pharmacies

I had great pleasure in supervising Sebastien at 1001Pharmacies. Meticulous, fully aware of the UX issues of the projects entrusted to him and of great effectiveness he is a valuable asset in the realization of web projects and applications. I'd love to work with him again.

Guilhem Marty (CTO) - 1001pharmacies

Pragmatic agile and exemplary quality. I had the pleasure of working with Sebastien for 1 year during which he transmitted his passion for agile methods. Sebastien makes a huge difference for our team and its productivity. He is constantly looking for efficiency with the automation of all production processes and deployment. A great sensitivity of UX and frontend experience provide Sebastien a proactivity to improve the product. I hope to work with Sebastien again on a new project.

Laurent Cuenet (CTO) - You2You

The projects in which we have to work together in 1001pharmacies allow me to make the human and professional qualities that Sebastien has. Its expertise in JavaScript, tools dev forehead and watchful eye on new trends in the environment are a real plus that I appreciate every day. His seriousness, his ability to listen and his energy are also a collaborator with whom it is pleasant to work.

Mathieu Fortune (Frontend developer) - 1001pharmacies

Sebastien is a rare developer. I had the opportunity to work with a lot of developers, especially with Epitech, and Sebastien's profile is precious. He understands the impact and the multidisciplinarity of his developments, which allow him to always propose an smart code adapted to the initial problematic. Even when a ticket may lack specificity, Sebastien always challenges the Product Owner to optimize the specificities with kindness.

Lou Husson (Product Owner) - You2You