Founding Senior Full-Stack Engineer (GPS Forward Deployed)

Badreddine Bennoui

Founding Engineer Senior Full Stack Engineer Frontend Developer

CONTACT

Location: Istanbul, Turkey

Email: *******.**********@*****.***

Phone: +90-531-***-****

LinkedIn: https://www.linkedin.com/in/badreddinebennoui GitHub: https://github.com/badr21b

Portfolio: https://badreddine-bennoui.vercel.app

Website: https://samelink.io

SUMMARY

Founding engineer, senior full stack engineer, and frontend developer with 9+ years shipping production web and mobile systems. Expert in frontend frameworks (React, Next.js, React Native), JavaScript, TypeScript, HTML, CSS, Node.js, NestJS, REST APIs, PostgreSQL, system design, and scalability. Uses Chrome DevTools for debugging and performance analysis. Founded SameLink and shipped 5+ products, including 2 apps on the App Store and Google Play. As Technical Project Lead at Foursight, translates Product and Design briefs into API contracts and weekly milestones across 3+ workstreams, cutting ambiguity-to-build time by about 40%. Open to 12-month contracts and relocation (Qatar, EU, Quebec). SKILLS

Front End: frontend frameworks, JavaScript, TypeScript, HTML, CSS, Tailwind CSS, Next.js, React, Redux, React Native, Expo, Progressive Web Apps, Chrome DevTools

Back End: Node.js, NestJS, Express, REST APIs, modular microservices, GraphQL, Python Data: PostgreSQL, Prisma, MySQL, SQL, Redis

Delivery: Git, GitHub, CI/CD, Docker, Kubernetes, AWS, Vercel, Cloudflare, unit testing, code review, Agile, debugging, technical documentation

Leadership: technical project leadership, mentoring, stakeholder communication, product ownership Foundations: C, C++, algorithms, data structures, system design, scalability, computer vision EXPERIENCE

Technical Project Lead (Contract)

Foursight Istanbul, Turkey

May 2026 - Present

- Led system design for 3+ concurrent full stack workstreams (TypeScript, Node.js REST APIs, PostgreSQL), cutting ambiguity-to- build time from about 2 weeks of clarification to under 1 week (about 40%).

- Converted Product and Design briefs into milestones and API contracts in 1-2 week cycles, raising on-time delivery by about 25% across 3+ streams.

- Raised release confidence by about 30% via CI/CD checks, code review, unit testing, and structured debugging on production features.

- Authored API references and operational runbooks for 3+ workstreams and mentored 2 engineers, cutting review rework by about 20%.

Principal Frontend Engineer (Contract)

Karnaval Medya Grubu Istanbul, Turkey

April 2025 - Present

- Shipped JavaScript and TypeScript web and Smart TV clients with frontend frameworks for a national media audience across 2+ platforms (Tizen and webOS).

- Cut TV UI defects by about 30% by hardening HTML and CSS for pixel-accurate layouts on 2 OS targets, using Chrome DevTools before release.

- Delivered production screens inside release windows under 2 weeks with Product and Design stakeholders. Principal Product Engineer

Budhi Berlin, Germany

March 2025 - September 2025

- Took a wellness product from unclear requirements to App Store launch in about 6 months as sole end-to-end owner.

- Built React Native, Expo, TypeScript, and JavaScript client flows with REST APIs, enabling first production users within 2 release cycles.

- Cut scope churn by about 40% across 2 major iterations by prototyping highest-impact screens first and shipping weekly slices.

- Documented release checklists and component usage notes so later contributors could ship without rediscovering setup steps. Founder and Founding Engineer

SameLink Istanbul, Turkey

January 2023 - Present

- Founded SameLink and shipped 5+ products (Memora, DailyGuide, FitConnect Pro, Verba Pro, Autonomic) as sole technical owner and frontend developer.

- Built NestJS modular microservices APIs (REST and GraphQL) on PostgreSQL, Prisma, and MySQL with Redis, Docker, Kubernetes-compatible images, and AWS-oriented S3 and CDN delivery for 5+ backends.

- Launched 2 consumer apps on both App Store and Google Play (4 store listings) using Next.js, TypeScript, Tailwind CSS, React Native, Expo, and Progressive Web App-ready web surfaces; FitConnect Pro moved from idea to store listings faster than prior solo prototypes (about 6 months versus prior 9+ month cycles).

- Wrote technical documentation and process notes and ran informal training for collaborators on shared stacks.

- Presented DailyGuide at Web Summit Qatar 2025 to 1,000+ attendees and shipped a Slack-to-Jira FDE demo creating real issues in under 2 minutes.

Senior Full Stack Engineer

Koosmik Luxembourg City, Luxembourg

January 2021 - September 2024

- Delivered secure authentication, operational dashboards, React Native clients, and REST APIs over 3 years and 9 months in regulated EU FinTech.

- Hardened compliance workflows with validation, server-side error handling, and code review across 10+ production releases.

- Improved production stability by about 20% in Agile squads through debugging and unit testing, supporting about 50 weekly releases per year.

- Partnered with product and compliance stakeholders to clarify edge cases before build, reducing late-cycle rework on authentication and dashboard flows.

- Built reusable dashboard components that cut duplicate UI work across 2+ internal tools.

- Supported release readiness with checklist-driven QA and clearer defect triage before weekly ship windows. Senior Full Stack Engineer

Panjur Bilisim Istanbul, Turkey

January 2017 - December 2024

- Owned high-traffic JavaScript, TypeScript, PHP, and Symfony platforms for 8 years with focus on scalability and maintainability

(full-time through 2020, then consulting concurrent with Koosmik).

- Introduced Git workflows, code review, and Jest unit testing that reduced shared-code regressions by about 25% within 2 quarters.

- Mentored 3 engineers and modernized legacy HTML and CSS surfaces, improving load time on core pages by an estimated 15% to 20%.

- Used Chrome DevTools and frontend frameworks patterns to diagnose and fix production UI performance issues on high-traffic pages.

- Standardized shared module boundaries to reduce cross-team merge conflicts on core platform packages.

- Improved incident turnaround on critical UI defects by documenting reproduction steps and fix patterns for the team. PROJECTS

- Memora (January 2024 - Present): event films and shared media albums for web and mobile; Next.js, NestJS, Prisma, MySQL, Expo; https://www.studiomemora.com.

- DailyGuide (January 2025 - December 2025): consumer product showcased at Web Summit Qatar 2025 to 1,000+ attendees.

- FitConnect Pro (January 2023 - Present): sports marketplace; sole owner; React Native, NestJS, PostgreSQL, Mapbox; Progressive Web App-ready web client; 2 store listings; https://fitconnect.samelink.io/web.

- Verba Pro (January 2023 - Present): speech-to-text to LLM summarization; sole owner; React Native, NestJS; 2 store listings.

- Autonomic (January 2024 - Present): vehicle damage management platform from concept to technical delivery. EDUCATION

Graduate Specialization in Images, Computer Vision, and Computer Graphics (IMA) Sorbonne University (UPMC) Paris, France 2012 - 2015 Master of Science in Computer Science and Embedded Systems University of 20 August 1955 Skikda, Algeria 2009 - 2011 Thesis: Multi-Agent Systems for Medical MR Image Segmentation (brain imaging). Bachelor of Science in Mathematics and Computer Science University of 20 August 1955 Skikda, Algeria 2006 - 2009 CERTIFICATIONS

Udacity React Nanodegree · React Native Specialization.

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