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I'm Jóni Sousa

With more than 7 years of experience in email marketing. I've worked with brands like Sainsbury's, Sainsbury's Bank, P&O Cruises, Lego, Burberry, etc. Pushing the boundaries of email with interactive elements and always on the edge of email trends...


I'm a Passionate Web & Email Developer

I'm a native problem solver, there's no better feeling than developing something to solve a problem. That's why I love email, the number of limitations around this ancient marketing tool, makes me go the extra mile, research, and develop new ways to push the boundaries of email.

Self-taught Developer who loves challenges, working hard, I care about writing clean code and genuinely love to learn.

I am very pro-active and have developed many personal projects in my spare time. A methodical and organised person, my colleagues say I am dynamic, responsible, and a great problem-solver, always available for my co-workers.

Highly motivated, I always achieve my goals set for a project, through a critical spirit of initiative and creativity, I always seek the best results for the company I work for.

Skills & Technologies
  • Client-side: HTML5, CSS3, SASS, Bootstrap, jQuery, JavaScript, AMPscript
  • Programming language: PHP, VB. NET
  • CMS: WordPress
  • Systems: Mac, Linux (Ubuntu), Windows
  • Database: MySQL, SQL Server
  • Version Control Systems: Git
  • Email marketing platforms: Salesforce Marketing Cloud, Mailchimp, Campaign Monitor, Responsys
  • Currently learning: ReactJS, Django, MongoDB

What Do I Do?

Work Experience

I am a developer that is continually seeking to improve my technical knowledge and abilities.

Mar 2015 - Present
Head of Email Development
Altaire Limited
  • Building templates in Salesforce Marketing Cloud, and adding interactive elements with help of AMPscript
  • Developing a portfolio of bespoke components to use in emails (enhancedemails.com)
  • Architecting an email builder tool that fulfilled the client brief for optimising and automating the email creation process (Creators Studio)
  • Architecting an email briefing tool to aid clients briefing and approve emails (Nucleus)
  • Overseeing all email development and leasing with the design team
  • Managing the email test process to ensure the quality and functionality of emails across all clients
  • Developing an email design system to force brand identity
  • Planning and coordinating a team of 3-5 email developers
  • Identifying and promoting opportunities to develop more engaging interactive email content
  • Actively participating in client calls and meetings to brainstorm creative ideas
  • Analysing potential client CRM to pitch creative ideas using interactive techniques and better designs
  • Developing Landing pages
Senior Email Development
Altaire Limited
  • Production of efficient HTML/CSS code to aid the development and production of a wide range of email communications
  • Ongoing discovery and employing new design, development, technologies and techniques to continually evolve the email offering
  • Performing cross-client testing using tools like Litmus, Email on Acid, and real devices
  • Constantly researching best practices and implementing them in campaigns to level up email performance
  • Managing workflows to meet business and creative deadlines
  • Active member of the email team helping to improve team skills, tools, and processes
  • Researching new ideas to better track emails and interactive components
  • Developing landing pages
Web Developer
Postura Global / Freelancer
  • Handling all verbal and written communication with clients
  • Preparing multiple designs for client’s approval before proceeding with development
  • Developing websites with HTML, CSS, JavaScript, PHP & MySQL
  • Developing a simple and easy CMS to allow clients to manage their websites
  • Following the best practices in implementing SEO including optimisation of images and improving the site's speed
  • Building best practice HTML emails
  • Management and maintenance of domains and hosting
  • Creating corporate branding
Jan 2009 - Jan 2015
Nov 2007 - Dec 2014
Software Developer
Grupo Júlio Lopes
  • Developing VB .Net and SQL applications, including software for stock control, file management, project cost management having connection to external databases
  • Developing websites with HTML, CSS, JavaScript for all the group companies
  • Creating corporate branding for all the group companies
  • Creating and maintaining an online survey platform
  • Maintenance of around 50 computers in the company network
  • Training and support to the user
  • Reports using Crystal Reports

What people say about me

I'm fortunate to have worked with amazing people, which were always supportive and helpful in my professional journey. I was able to be at my best because of the team I was part of.

Jóni is an individual that brings an immense amount of creativity and passion to any project. Whilst working alongside Jóni, he always exceeded my expectations by bringing high levels of attention to detail and innovation to the projects he managed. Jóni was instrumental in bringing new technologies to market, and can be credited for the success of Altaire's email technology innovations. Jóni's ability to find a way to make the seemingly impossible (in email) work makes it a pleasure to have him as part of our team.

Joe Pratt
Head of Product at Altaire Limited

I have worked with Joni for more than 3 years and in this time he always had the best attitude towards work and on the multitude of projects we worked on together. I've seen him grow and turn into a successful head of department.
Coordination is embedded in him with a clear mind towards prioritizing with an Agile approach, delivering value for clients from first interactions.
I've seen Joni time and time again building from scratch many impressive components that are still pushing boundaries in the email development space. His attention to detail and thorough process in delivering a piece of software makes him an ideal colleague for anyone and a perfect mentor to people starting in their careers.
Working with Joni was a privilege and I do hope we will meet again on other projects soon enough.
Recommending Joni for a role in any company comes naturally as I know he will surpass any expectations set upon him.

Gabriel Antonica
Senior Consultant at Deloitte Digital Romania

I've been working with Joni for over 5 years and I don't think I'ver met anybody who made such a big difference in a company like he does with his great mix of technical skills, very hard work and leadership. He's at the forefront of innovation and up-to-date with the latest trends in email marketing. You can always count on him even when things get really busy and he knows how to adapt his style and language with different stakeholders.

Stefano Danelli
Marketing Manager at FXTM Brand Campaigns

Joni has been great to work with, he is an email expert who knows all the email client quirks that plague email development.
He is adaptable and friendly, I’d recommend him to anyone looking for an email developer!.

Jack Skinner
Website Project Manager at B4B Marketing

Jóni is a very talented and creative Web Developer. He works very hard and he is usually on top of the latest technologies. Jóni is a wonderful person to work with.

Paulo Jorge
Lead EPP Developer at Com Laude

Excellent webdeveloper with high skills in program languages. In it concerns about design and work objectives its a natural worker too. In summary it's a good fellow and outstanding worker.

Rafael Fernandes
CEO Postura Global Angola

Contact Me

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