About Oussema
👋 I'm a passionate Software Engineer, Tech Lead, and Entrepreneur with over 10 years of experience building and scaling high-performance software systems across the US, Europe, and North Africa.
My journey spans from hands-on backend engineering to mentoring developers and leading cross-functional teams to deliver resilient, scalable, and elegant tech solutions.
👨🏻💻Your all-in-one Software Engineering Partner — and Co-CTO. I help tech and AI startups design, build, and scale their platforms with confidence and speed.
⚙️ My top areas of expertise:
- 🧠 Designing and building scalable backends — from data indexing to complex API architectures.
- ☁️ Deploying and scaling infrastructures capable of handling up to 1,500+ requests/sec.
- 💳 Integrating cutting-edge payment solutions with Stripe — including Online Payments, In-Store Terminals, Stripe Connect, Stripe Billing, and AI-based Stripe usage subscriptions.
- 🤖 Building AI Agents and workflow automations that streamline operations and enhance user experiences (n8n expert).
🏅Certification:
- Stripe Certified Professional Developer
- Stripe Certified Billing Developer
- Elasticsearch Certified Engineer
- GCP Certified Engineer
As a cheerful entrepreneur and mentor, I’m passionate about bridging technology and business strategy — transforming innovative ideas into sustainable products that truly make an impact.
Arabic
Native or bilingual
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- StripeSoftware Engineer | Technical Solutions EngineerJune 2022 - Today (4 years and 1 month)Paris, France• Deep understanding of Stripe's internal and public codebases, supporting both Stripe engineers and external developers.• Provided technical assistance via email, Discord, GitHub, and face-to-face, resolving complex integration challenges.• Analyzed user friction points and collaborated with cross-functional teams to improve product experiences.• Led the development of a RAG app that index Stripe's internal resources in a vector database and build a scalable infrastructure utilized by internal teams for self-serve• Mastering Stripe Payments, Stripe Billings, Stripe Invoices, Stripe Terminal, Stripe Connect and Stripe Webhooks and SDK.
- VayetekCo-Founder | CIODecember 2015 - January 2024 (8 years and 1 month)Tunisia• Administering the company infrastructure and the DevOps pipelines for a better product delivery (CI: Gitlab; CD: Ansible, Docker, OVH, GCP; Monitoring: ELK )• Infrastructure governance (costs, hybrid infrastructure providers, alerting, monitoring, tracking, security)• Review & Validate products' architecture: Redesign the backends architecture in order to support autoscaling on demand (CDN, Redis Caching, Load balancing, Cloud functions…)• Analysis, refactoring and continuous technical improvement
- OpenClassroomsProject Manager MentorFebruary 2021 - December 2022 (1 year and 10 months)Paris, FranceHelp students to learn how to Coordinate multidisciplinary teams in the realization of digital projects.
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Education
- Google Cloud Platform Fundamentals: Core Infrastructure Essential Google Cloud Infrastructure: Foundation Essential Google Cloud Infrastructure: Core Services Delf B2Google Cloud Platform Fundamentals: Core Infrastructure Essential Google Cloud Infrastructure: Foundation Essential Google Cloud Infrastructure: Core Services Delf B2
- Engineer's DegreeINSAT - Institut National des Sciences Appliquées et de Technologie2018Engineer's Degree
Certifications
- Stripe Certified Professional DeveloperStripe2025
- Stripe Certified Billing DeveloperStripe2025