Sebastiaan Deckers

Sebastiaan Deckers

Javascript Jockey at Cofounders Pte Ltd

Computer Software

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Sebastiaan Deckers's Overview

  • Webmaster at RedMart
  • Systems Technologist at Adz
  • Founder, Project Maintainer, Lead Developer at Pandion

500+ connections


Sebastiaan Deckers' Summary

Self motivated entrepreneur and software engineer specialised in front-end development of web applications, Javascript programming, real-time messaging, and open source software. Passionate about interaction design, distributed and federated networks, and software deployment automation. Originally from Belgium, working in South and South East Asia, currently living in Singapore.


Javascript, HTML5, CSS3, XMPP

Sebastiaan Deckers' Experience

Lead Frontend Software Engineer


Public Company; 1-10 employees; Marketing and Advertising industry

January 2014Present (10 months) Singapore

Frontend Cofounder

Cofounders Pte Ltd

Public Company; 1-10 employees; Internet industry

June 2012Present (2 years 5 months) Singapore

At Cofounders, I bring my expertise as a frontend developer to join a crack squad of startup geeks.

I help non-technical entrepreneurs take their startup from idea to a launched MVP to test their hypothesis in the market. I also help scale successful startups and advise their technical teams. Additionally, Cofounders builds and offers its own web apps.



Privately Held; 51-200 employees; Internet industry

February 2013July 2013 (6 months) Singapore

Consulting with RedMart to bring modern frontend development to their ecommerce platform.

My primary role was to architect and build the frontend technology stack. The new website needed to be fast and scalable to cope with growing traffic. The team's shared experience with BackboneJS made that an easy starting point. In the process I became a contributor to GruntJS, Yeoman and other open source projects.

Encouraged by the go-getter company culture, I also helped out by taking on many other pseudo-roles. Frontend, QA, UX, PM, etc.

Systems Technologist


Privately Held; 11-50 employees; Internet industry

March 2011March 2012 (1 year 1 month) Singapore

Frontend architect, building a Demand-Side Platform (DSP) for the Asian online advertising market.

Javascript, HTML5, CSS3, Node.js, Backbone.js, Underscore.js, jQuery, Moustache.js, ICanHaz.js, Jenkins, Ant, git, svn, AWS EC2.

- Architected, designed and developed some of the most crucial UI components in the product.
- Improved team productivity by leading the company to adopt agile project tools (Pivotal Tracker), continuous integration (Jenkins CI), distributed scm (GitHub).

Founder, Project Maintainer, Lead Developer


Self-Employed; Myself Only; Computer Software industry

20002011 (11 years)

Pandion is an open source instant messenger for XMPP networks used by millions worldwide with large deployments at Fortune 500 companies, government bodies, universities and other organisations.

I started working on Pandion during high school as a self-training experiment, published it online after a year of private development, and continued to build a company on it.

My responsibilities on the project include:
- Application architecture
- UX and graphic design
- Javascript programming
- XMPP compliance
- Technical end user support
- Consulting on large scale custom deployments and software update management
- Website design & development
- Development and scaling supporting web services
- Community management

I also co-founded a company to support the project and was responsible for its operations. As client liaison I successfully bid for and negotiated contracts for over a dozen projects. Customers included range of companies from SME to Fortune 500, non profit organisations, large educational institutes, government bodies.


XMPP Standards Foundation

20012010 (9 years)

I have been involved with the Jabber developer community even before the XMPP Standards Foundation was set up. I actively participate in protocol design discussion directly with other community members, at conference meetups, and on the XSF mailing lists.

One significant contribution has been the Icon Styles specification XEP-0038 of which I created the first implementation and strongly influenced the draft spec. This protocol has since been adopted by many other instant message clients. I registered the MIME type of this file format with the Internet Assigned Numbers Authority (IANA).

Privately Held; 1001-5000 employees; Internet industry

January 2008June 2009 (1 year 6 months)

Project was the leading part of a suite of social networking and real time communications services ad offers desktop+web interface to the user platform
Leading team of 5-10 people
Played a key role in the project from conceptual planning stage, to architecture, UX design and implementation over various iterations of the application
Hands-on development of instant messaging client using Javascript, HTML5, CSS, Titanium, Flex, AIR, ExtJS, Dojo, jQuery, Prototype
Training myself and my team in new tools, technologies and best practices
Involved in the sourcing, interviewing and hiring process across multiple teams and projects
Providing XMPP and Javascript domain knowledge including to other teams in the company
Capacity planning, scalability analysis and stress testing of available open source XMPP servers in collaboration with their developers

Other achievements:
Speaker for Directi on free and open source software at various conferences in Mumbai, Pune, Hyderabad
First expat to join Directi in India and instrumental in helping company build relevant HR processes
Initiated and organised company wide gaming tournaments with 50+ players

Sebastiaan Deckers' Projects

Sebastiaan Deckers' Skills & Expertise

  1. JavaScript
  2. Front-end Development
  3. XMPP
  4. HTML 5
  5. User Interface
  6. Usability
  7. PHP
  8. MySQL
  9. HTML
  10. Git
  11. CSS
  12. REST
  13. Open Source
  14. XML
  15. Scalability

Sebastiaan Deckers' Languages

  • English

    (Native or bilingual proficiency)
  • Dutch

    (Native or bilingual proficiency)
  • French

    (Limited working proficiency)
  • German

    (Elementary proficiency)

Sebastiaan Deckers' Additional Information


javascript, html5, xmpp, real time networks, open source, entrepreneurship, social networks, asia, gaming

Groups and Associations:

XMPP Standards Foundation

Contact Sebastiaan for:

  • career opportunities
  • consulting offers
  • new ventures
  • job inquiries
  • expertise requests
  • business deals
  • reference requests
  • getting back in touch

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