Senior Software Engineer & Lead Frontend Engineer

I'm Seifeddine 👋, a Senior Software Engineer and Lead Frontend Engineer with 10+ years of experience designing, building, and scaling modern web applications for startups, scale-ups, and enterprise organizations. I'm specialized in frontend architecture and high-performance web applications, with deep expertise in JavaScript, TypeScript, React, Next.js, and Angular.

My work consistently focuses on scalability, maintainability, performance, and user experience. I'm comfortable operating as a Lead Engineer, Senior Individual Contributor, or Technical Owner, depending on the needs of the organization, bringing a pragmatic mindset focused on long-term code quality, team efficiency, and real product impact.

Leading High-Performing Frontend Teams: A Practical Guide for Tech Leads

January 16, 2026

Learn how to lead frontend engineering teams effectively. Discover strategies for mentoring, code reviews, technical decision-making, and building a culture of excellence based on 10+ years of experience leading teams at scale-ups and enterprise organizations.

Modern Frontend Development: React, TypeScript, and Next.js Best Practices for 2025

January 16, 2026

Discover modern frontend development best practices for React, TypeScript, and Next.js. Learn performance optimization techniques, type safety patterns, and architectural decisions from 10+ years of building production applications.

Building Scalable Frontend Architecture for B2B SaaS: Lessons from 10+ Years of Engineering

January 16, 2026

Learn how to design and implement scalable frontend architecture for B2B SaaS applications. Discover proven strategies for React, TypeScript, and Next.js that I've used to stabilize fragile codebases and scale platforms serving fast-growing e-commerce brands.

Work

Company
Prediko
Role
Lead Frontend Engineer
Date
Aug 2022 Nov 2024
Company
Airbus (via Symolia Technologies)
Role
Senior Frontend Engineer
Date
Apr 2021 Jul 2022
Company
ONCODE
Role
Senior Frontend Engineer
Date
Feb 2020 Mar 2021
Company
BSMART
Role
CTO
Date
Jan 2019 Feb 2020
Company
KAWAMI
Role
CTO
Date
Jan 2017 Dec 2018
Company
KAWAMI
Role
Full-stack Developer
Date
Oct 2016 Dec 2016
Company
Docteury
Role
Full-stack Developer
Date
Jun 2016 Oct 2016

Download CV

Recommended by amzing people

Anya Bacon

Seif’s input into Prediko Overall and specifically Front End strategy can’t be underestimated. With his structured approach to work; extensive knowledge of the latest tools in the market and creative business mind - we really are able to develop at the immense speed.What’s great about Seif is that he always starts from a customer and really strikes a perfect balance between tech needs and business. Most importantly he is a very easy person to work with personally and always ensures the team is well lead.

Manuel A Carvalho

I worked with Seif for five months and he is an exceptional team player - selfless, responsive, and dedicated to success. Seif's positive attitude and collaborative nature make him a valuable asset to any organization.

Youri Moskovic

Seif is an experienced, skilled and disciplined engineer. He's very productive and also fun to work with. A man of many talents!

Avani Chawla

During the short period we collaborated in the same project at Airbus, I noticed that Seif is a great front end developer. He is a highly-skilled, experienced, and helpful professional with a positive attitude. He is very passionate about anything he takes on and always tries to leads his team with enthusiasm and encouragement. Working with Seif has been a great experience for me as I learned a lot from him. I beleieve any employee would be happy to have him as their team lead.

Anya Bacon

Manuel A Carvalho

Youri Moskovic

Seif is an experienced, skilled and disciplined engineer. He's very productive and also fun to work with. A man of many talents!

Avani Chawla

Frederic Drezen

Working with Seif was really great. As a portfolio manager, I've always been satisfied with his work and panel of possible solutions he proposed. Seif is both experienced professional, deadline oriented and intelligent person. Seif is a great consultant with very strong problem solving skills, definitively a valuable asset to the team and the projects. Working with Seif is a signature of success, I highly recommend him.

Afef Ayed

I've been fortunate to work with Seif for different companies and I can only say that he has always gone above and beyond to make sure everything was done well and professionally. As a marketer in a different department, I've always been happy with his support as he always delivers exactly what we need.

Dov MORYUSEF

Seifeddine est un super développeur, sa maitrise des technologies frontend et de ReactJs est impressionnante. Rapide et efficace, il trouve toujours les solutions les plus adaptées aux problématiques complexes. Très pédagogue, il est très agréable de travailler avec lui et c'est une chance de l'avoir dans son équipe.

Othmane Lahlou

Seifeddine is a very talented front end developer. Beyond his strong work ethic, he carries out most tasks with efficiency and speed. He has great technical knowledge of the field and is not afraid to take on a challenge. I highly recommend him.

Haroun Ouertatani

Étant le recruteur de Seifeddine, j'ai été impressionné par sa maitrise et sa passion sur les technologies JavaScript spécialement sur React Js et Node Js. Nous sommes sont très satisfaits de son engagement et la qualité de son travail. C'est un plaisir de pouvoir collaborer avec lui

Sirine Bejaoui

Seif is an excellent leader and manager who will show what excellent project management should be and an outstanding mentor with a rich experience in several areas. I’ve worked under his guidance for three months and I can say that he is innovative, organized as well as helpful and is always open to ideas and suggestions. He has made me improve in many professional areas and taught me about leadership skills. It was a pleasure to be managed by him during internship period.