Sofiane Ouafir



Throughout my career, I have successfully led diverse teams and projects across Canada, France, and the UK, significantly enhancing user engagement and platform growth. I hold a Bachelor's degree in Computing Science from the University of Nice and bring over 8 years of software engineering experience to the table.

Software, DevOps and Blockchain Engineer

I co-founded and raised $3.5 million for, a digital art platform, demonstrating my entrepreneurial spirit and technical expertise. My professional journey also includes roles as a software engineer at,, and the European Society of Cardiology, where I contributed to various impactful projects.

  • Birthday: 20 4 1994
  • Website:
  • Phone: +1 (647)-238-4971
  • City: Toronto, Canada
  • Age: 30
  • Degree: Bachelor
  • Email:
  • Freelance: Available

Beyond my professional endeavors, I'm deeply committed to personal development and continuous learning, as evidenced by my certifications in Amazon Web Services, React, Node.js, and Ethereum Blockchain Development. My work not only reflects a dedication to technological advancement but also a passion for building great products. As I look to the future, I'm excited to explore new opportunities that challenge the status quo, drive innovation, and create lasting impact in the tech and creative industries.


This section showcases a curated collection of facts that highlight my diverse experiences, achievements, and contributions. From pioneering technological innovations to fostering global community growth, each fact reflects a facet of my professional journey and personal development.

+ Years. Extensive Professional Experience in leading innovative projects in tech.

Million+ (USD). Amount of funding raised for ventures, showcasing financial awareness and trust.

Countries Operated In. Global impact through work and projects across France, England and Canada.

Sales Volume Generated. From the last startup I've co-founded.

Countries explored. Leveraged global insights by traveling to 30 countries, enriching professional perspective and cultural understanding.

Years of Advanced Education. Achieved a Bachelor's degree, underscoring a strong foundation in computing science.

+ User Community Growth. Expanded the user base for (platform co-founded), demonstrating ability to build highly scalable & resilient product.

Certifications Earned. Professional certifications that enhance my expertise and skills.


This section highlights my comprehensive skill set, refined through years of hands-on experience and continuous learning in the tech industry.

Docker 90%
Amazon Web Services (AWS) 85%
Blockchain 80%
Next.js 90%
Node.js 90%
Databases 90%
Fullstack engineering 90%
Engineering Leadership 85%
Project Management 85%
Entrepreneurship 85%
Communication 90%


Here are some of my professional certifications.

AWS Certified Developer Associate
AWS Certified Developer Associate


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AWS Certified Cloud Practitioner
AWS Certified Cloud Practitioner


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AWS Certified DevOps Engineer Professional 2024 - DOP-C02
AWS Certified DevOps Engineer Professional 2024 - DOP-C02


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Ethereum Blockchain Developer Bootcamp with Solidity
Ethereum Blockchain Developer Bootcamp with Solidity


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The Complete Node.js Developer Course
The Complete Node.js Developer Course


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The Complete React Developer Course
The Complete React Developer Course


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Sofiane Ouafir

Passionate and driven software engineer with 10+ years of experience desiging and developing user-centered tech products.

  • Queens Whard Road, Toronto, ON, Canada
  • +1 (647)-238-4971


Bachelor's Degree, Computing Science

2013 - 2017

Université Côte d'Azur



Lycée Professionnel des Métiers - Les Coteaux, Cannes, France

Professional Experience

Co-Founder & CTO

2021 - 2024 (Chestr Labs), Toronto, ON, Canada

Joyn’s mission is to empower creators to earn a living doing what they love, while having full control over their career. Skills: AWS, ECS, Docker, React.js, Next.js, Node.js, AWS ElastiCache, AWS RDS, Postgresql, SQS, SNS, WebSocket, Ethereum, Solidity, Smart contract, Elastic Search

    Senior Software Engineer

    2020 - 2021

    Humi, Toronto, ON, Canada

    The leading all-in-one HR solution for Canadian businesses. Skills: AWS, Ruby on rails, Lavarel, Docker, Angular.js, Typescript, Postgresql, Redis ElastiCache

      Senior Software Engineer

      2019 - 2020

      Thrive Career Wellness Platform, Toronto, ON, Canada

      Thrive is a career wellness platform designed to help people advance their careers. Skills: AWS, Ruby on rails, Ember.js, React.js, Postgresql

        Software Engineer

        2017 - 2019

        Resi, London, UK, England

        Resi is the UK's first online residential architecture platform. Skills: AWS, Heroku, Ruby on rails, React.js, ElastiCache Redis, AWS RDS Postgresql, SQS, SNS, Elastic Search

          Software Engineer

          2016 - 2017

          European Society of Cardiology, Nice, French Riviera, France

          Sep 2016 - Sep 2017 (1 year 1 month) The European Society of Cardiology (ESC) is an independent, non-profit organisation aiming to reduce the burden of cardiovascular disease. Skills: ASP.NET, C#, Microsoft SQL Server 2012, SVN, WPF, LINK, IIS


            This section showcases a curated collection of some of my most impactful work, highlighting projects that span various domains and technologies.

            • All
            • App
            • Open-source
            • Mobile
            • Web


            I offer a suite of services designed to empower your digital presence through cutting-edge technology and innovative solutions.

            Web Development

            Crafting responsive, user-friendly websites with a focus on modern design principles. Specializing in creating seamless, scalable online experiences that drive user engagement and satisfaction.

            Mobile Application Development

            Designing intuitive, high-performance mobile applications tailored for both Android and iOS platforms. Committed to leveraging the latest in mobile technology to meet diverse user needs.

            Cloud Application Development

            Delivering robust cloud application solutions that ensure scalability, security, and high availability. Expertise in cloud infrastructure to drive efficiency and innovation.

            IT Consulting

            Providing expert IT consulting services to optimize your technology strategy. I offer comprehensive approach addresses your toughest IT challenges with innovative solutions.

            Software Testing

            Ensuring the highest quality software releases with meticulous testing services. From automated testing to user acceptance and performance testing, I cover all bases.

            Database Development

            Building powerful database solutions that store, organize, and retrieve data efficiently. My expertise ranges from database design to administration and optimization.


            Explore the reflections and endorsements from colleagues, clients, and industry peers. Their testimonials offer a glimpse into the professional relationships I’ve cultivated and the tangible results of my work.

            TLDR; Sofiane is thoughtful and attentive leader who is great at execution. Sofiane is so easy to get along with, and I really enjoyed working with him on understanding and validating the requirements, planning, breaking down the work and reviewing and testing each other’s PRs.  Continue Reading

            Jonathan Siu

            Engineering Lead at Humi

            Sofiane is a driving force behind Joyn, blending vision with action. It's been great having him as a co-founder and a mentor. His approachability and commitment to the team's success have made a significant impact, making the journey with both productive and enjoyable.  Continue Reading

            Gianmarco Tudisco

            3D Artist, Architecture Specialist

            I found his passion for continuous learning inspiring. Not only does he have a natural talent for software engineering, he also has a keen interest in the commercial side of launching and marketing apps/software.  Continue Reading

            Guv Marwaha

            Ruby Engineer

            Sofiane's exceptional leadership skills and ability to inspire others were evident in every project we worked on together. He is a natural leader with excellent communication abilities, a strategic mindset, and a deep understanding of best software engineering practices.  Continue Reading

            Savan Parel

            Fullstack Developer

            Sofiane stands out for his meticulous attention to detail, proactive communication, and ability to deliver reliable results under pressure. These qualities not only accelerated trust building across teams but also significantly enhanced efficiency within our startup environment at Humi.  Continue Reading

            Mingzi Zhang

            Product Manager at Meta

            Sofiane played a pivotal role in leading our engineering efforts, overseeing projects that significantly enhanced our platform's functionality and user experience. His leadership ensured high coding standards and fostered a culture of continuous improvement, instrumental in our team's development and cohesion.  Continue Reading

            Miguel Angel Romero Jr.

            Marketing Lead

            Sofiane is an incredibly talented and hardworking engineer, always ready to help with complex issues and generously shares his expertise, significantly improving our product. His exceptional performance, exemplary character, and leadership qualities make him a valuable asset to any team or project.  Continue Reading


            NFT Artist

            Sofiane excels in communication and has a deep understanding of architecting scalable and efficient systems, with a meticulous attention to detail and a strong knowledge of object-oriented and various design patterns, emphasizing Test-Driven Development. His contributions across all aspects of projects, including smart contracts, frontend, backend, and DevOps, are significant. Beyond his professional skills, Sofiane is a genuinely great human being, making him a highly recommended leader and team member.  Continue Reading

            Hiren Kavad

            Tech Lead

            Sofiane, as CTO at, led with a rich technical skill set in frontend, backend, DevOps, and blockchain technology. His ability to adapt and innovate in the Web3 landscape was impressive, demonstrating agility crucial in a startup environment. His strategic thinking and vision significantly contributed to's growth, making him a valuable asset to any organization.  Continue Reading

            Aleksandra Artamonovskaja

            Partnership Lead

            Sofiane, as Co-founder and Head of Engineering at Joyn, led a team that was responsive and supportive, enhancing the collaboration experience significantly. Under his leadership, the team developed various innovative products that operated seamlessly, reflecting his strategic vision and impactful leadership. His ability to lead high-performing teams and commitment to excellence makes working with him professionally enriching.  Continue Reading

            Lina Melendro

            Partnership Associate

            Sofiane's passion and energy significantly accelerated Joyn's development pace. His meticulous attention to detail and business acumen ensured our projects not only met technical specifications but also exceeded user expectations. Familiar with every part of the tech stack, from frontend to devops and smart contracts, Sofiane's willingness to tackle unknown challenges head-on makes him an invaluable asset to any engineering team.  Continue Reading

            Joyn Yeung

            Senior Product Manager

            Sofiane's exceptional problem-solving skills and deep technical understanding significantly contributed to our success at Humi and JOYN. His leadership as CTO and Senior Engineering Lead was characterized by his remarkable ability to simplify complex issues, fostering a collaborative environment and setting high standards of excellence. Sofiane's genuine personality and technical expertise make him an invaluable asset and a pleasure to work with, strongly recommended for any challenging technical role.  Continue Reading

            Himat Jutla

            Senior Software Engineer



            Set up auto-scaling for your Fargate service using cloudwatch metrics.

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            How I Built a Contact Form with AWS CDK, API Gateway, Lambda, and SNS for SMS and Email Notifications

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            [Video] Hands-on introduction to Docker Stack

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            Mastering AWS CLI: Managing Multiple Profiles for Enhanced Workflow

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            [Video] Setting Up a 3-Node Warm Cluster with Docker Swarm

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            [Video] Scale Web Applications with AWS Application Load Balancer

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            This guide covers the steps from uploading your website content to enabling the static website hosting feature, making web deployment accessible and quick for everyone.


            Connect with me directly through this section. Whether you're interested in discussing potential projects, seeking advice, or simply want to say hello, I'd love to hear from you.


            Queens Whard Road, Toronto, ON M5V 0J8


            +1 (647)-238-4971