SIMON CAPLETTE - Hands-on Technical Lead

Located in Paris | LinkedIn Profile | Github Profile

SUMMARY

For two decades, I've collaborated to create and launch robust, scalable software solutions across diverse teams and industries in global hubs including Sydney, London, New York, and Paris.

My expertise extends to the security sector, where I provide defensive/offensive services, trainings and consultancy.

I have a passion for the Go language and its ecosystem which I have been deploying in production for the last 11 years. I teach professional & production Go through my own hands-on workshops based on real life content.

On a daily basis, I:

Industries I built products for:

Positions held:

Practices I value:

Strong interests: #Go #TDD #E2ETesting #Mentoring #CNCF #Kubernetes #KubeInternals #Scalability #Containers #Fuzzing #MachineLearning #MLAlgorithms #AppSec #CloudSec #Malware #Ethereum #Layer-2

EDUCATION

OPEN SOURCE

Below is some open code contributions I can show. The rest of my engineering and security work has been done in private owned repositories.

Also, my GitHub profile

ENTREPRENEURIAL

Via my own entity REKON, I provide security consultancy; advanced Go trainings as well as introductory security (offensive & defensive) workshops.

Here is what some companies have said about my security work and consultancy:

“Simon's security audit on our wallet component saved us money before going to any ANSSI certification.” - Fred de Matos - VP of Engineering, Rockside
“Rekon tools and analysis allowed Edulib to detect and remove a open redirect to a phishing website.” - Emilie Barreau - Director, Edulib
“Rekon gave us a complete overview of our public infrastructure so that we could simplify greatly its architecture and remove obsolete resources” - Eric Herve - CTO, Edulib
“We have strengthened and formalized our SDLC thanks to Simon. It enabled us to bump the security of our processes and set-up tools to ensure it stays secured” - Jeff - Security Engineer, Hivebrite

WORKSHOPS & TRAINING

I provide advanced Go workshops for engineers and companies. Here is what developers say about them:

"Well balanced hands on intro to Go with clear explanations and instructions. Overall, learned a lot and had fun!" - Developer at YLD
"Great balance of demonstrations vs practice, which worked well for a remote workshop." - Developer at YLD
"10 out of 10!" - Developer at YLD
"Très intéressant. Formateur très pro." - Developer at Ankama
"Bonne ambiance. Enrichissant. Permet de pratiquer différement." - Manager at Email Vision
"Beaucoup d'expérience perso sur le sujet avec un certains nombres d'anecdotes à remonter pour illustrer le sujet." - Developer at Amadeus
"Très instructif. Nouvelle vision sur les process de développements." - Developer at Email Vision
"Rien à redire. Présent. Disponible. À l'écoute." - Developer at Ankama

WORK EXPERIENCE

Senior Platform Engineer & Senior Offensive Security Engineer - Form3

Our product is one of the most resilient, multi-cloud, high volume transactions platform in FinTech. It spans 3 clouds (AWS, GCP & Azure ) using Go, Kubernetes and Infrastructure as Code, with more than 30 internal services/middlewares/gateways and third-party integrations.

Customers using our APIs: Loyds banking Group, Mastercard, Barclays, Stripe, JP Morgan, Nationwide, GoCardless, etc.

Direct responsibilities as part of the Customers API team:

I become then part of the small offensive security team. Overall my mission is to create new ways to consistently feed the risk framework of Form3 with novel and relevant vulnerabilities.

Direct responsibilities as Senior Offensive Security Engineer:

Technical Lead for UK/US companies (Design, Development, Security, Infra)

Via my own entity REKON, I offer concrete and extensive hands-on experience at various levels for challenging projects: design, build, architecture and infrastructure; security audits and threat modeling.

Candy (US) from Jan / November 2022

Working with Candy on their NFT Go platform that offers a first and second marketplace, and gamification of sports items

Improbable (UK) from May / November 2021

Working with Improbable to implement collectively a brand new and modern Go orchestration platform for the multi-players industry

Principal Engineer - Doctolib

Immersion in various teams to provide targeted implementations, solve technical & performance issues, and audit various internal systems (customized internal CI built on Kubernetes, SMS sending pipeline, etc.).

Technical Lead Contractor - Rockside (Development, Design, Blockchain, Security, Infra & Architecture)

Security
Core

DevOps

Others

Technical Lead Contractor - Edulib (Design, Development, Security, Infra, Scalability)

Technical Lead Contractor - Hivebrite (Design, Development, Security, Infra & Middleware)

Security Lead - CyberSecurity firm WALLIX

Principal Scalability Engineer - Streamroot (US backed company)

Talk (Slides | Video) on my work at Streamroot for Technical Paris Meetup: Go and Platform for Realtime processing

Platform Engineer - PrePlaySports (US company)

Lead Developer Ruby Contractor - Finexkap

Building a minimum viable product of a web portal verifying customers eligibility for financial factoring.

Ruby Developer Contractor - Hivebrite

Implementing full stack features for an application for private alumni communities. The online product is a white label for business & schools.

Senior Agile Software Consultant - Xebia

Mission as a Xebia consultant:

Within Xebia firm:

Agile Software Developer - Virgin Media (London)

Implementing back-end features for the Virgin e-commerce website offering broadband and adjacent services.

Agile Software Developer - Factset (London)

Overall refactoring with ongoing features of an online Outlook-like service for fund managers and investors.

J2EE Developer - Orbian (London)

Working on the back and front end of a supply chain finance platform that provides business-to-business finance and payment solutions.

GUI Developer & System Designer - Petards (London)

Solo work to create a full in-car detection and alerting system prototype for an upcoming European commission trial.