SchedJoules is a leading Calendar and Event API. We help businesses and heavily used applications to boost user engagement, create revenue channels, cut editorial costs and provide business insights. We support businesses across the world, including some of the largest, most respected enterprises.

We are an active member of CalConnect, the Calendaring and Scheduling Consortium. CalConnect improves all aspects of calendaring and scheduling, in particular interoperability. Rutger Geelen, CEO of SchedJoules, is the current president of CalConnect.

Rutger Geelen (CEO/Co-founder), Marten Gajda (CTO) and Wilfred Stegeman (CCO/Co-founder) have years of experience with events and calendaring technology on the web, iOS and Android.

Together with our team we are an international bunch of punctual people, passionate about planning and organizing, but also about living the good life. For the latter we really wanted to know when we could plan our holidays, our BBQs, and our nights out without this good life interfering with things like bad weather, games of our favourite football team and the occasional full moon. That’s why SchedJoules was founded with only one mission: to build the industry leading Event Discovery API.

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September 24-28, 2018

CalConnect XLIII

We’ll attend CalConnect XLIII, September 24-28, 2018, hosted by 1&1 in Karlsruhe, Germany. If you are interested in calendaring and scheduling this is the conference to be at.

June 4-8, 2018

CalConnect XLII

We’ll attend CalConnect XLII, June 4-8, 2018, hosted by Jorte in Tokyo, Japan. If you are interested in calendaring and scheduling this is the conference to be at.

Februari 26 – March 1, 2018

Mobile World Congress

We’ll be present at the 2018 Mobile World Congress in Barcelona, Spain.

Together with 9 other startups, SchedJoules is selected to be present in a Startup International Program at the Holland Pavilion (Booth 6M8, Hall 6).

Are your visiting the Mobile World Congress? Get in touch with us, so we can meet!

September 25-29, 2017

CalConnect XL

We’ll attend CalConnect XL in Cologne, September 25-29, 2017, hosted by Open-Xchange. If you are interested in calendaring and scheduling this is the conference to be at.

September 19, 2017

Meet us at #geomob in London

We’ll present at #geomob on Tuesday the 19th of September in London. #geomob is a regular event for London location based service developers who meet every two months. They provide a forum to discuss geo innovation. If you are a geo innovation fan, stop by.

June 20, 2017

Visit us at Emerce e-Travel

We’ll present at #geomob at September 19th in London. If you are a geoinnovation fan, stop by.

June 01-02, 2017

Meet us at Pioneers

We have a booth at the Pioneers conference in Vienna. Stop by if you want to discuss calendars & events.

May 18, 2017

May Newsletter

A lot has been achieved since our last update in April. Read about it in our May newsletter.

April 14, 2017

April Newsletter

Check out what we have been up to via our April Newsletter.

April 18-22, 2016

CalConnect Hong Kong

We are in Hong Kong at CalConnect XXXVI.

February 22-25, 2016

World Mobile Congress

We will be attending World Mobile Congress in Barcelona from February 22-25, 2016. Get in touch if you want to meet.

February 10, 2016

Calendar Digest #3

Here is our 3rd digest with updates from SchedJoules and interesting stuff in the world of calendaring & scheduling.

November 3-5, 2015

Web Summit Dublin

We will be attending Web Summit in Dublin from November 3-5, 2015. Get in touch if you want to meet.

September 28 – October 2, 2015

CalConnect Amsterdam

We are in Amsterdam at CalConnect XXXIV.

September 4, 2015

#1 issue of Calendaring & Scheduling Updates

The first issue with updates from SchedJoules and interesting stuff in the world of calendaring & scheduling is out. Subscribe to receive these Updates in your inbox on a regular basis.

September 3, 2015

New SDK 1.4.1

We released a new version of the SDK, built with the iOS9 SDK and Bitcode enabled. Get the latest version 1.4.1 on GitHub.

May 26, 2015

1B Calendar Requests per month

We handled over 1B calendar requests last month. 1.039.584.000 to be more precise.

May 19-22, 2015

CalConnect Bucharest

We are in Bucharest at CalConnect XXXIII

April 24-25, 2015

TheNextWeb Europe

We are in Amsterdam at TNW Europe

March 25-26, 2015


We are in Rust, Germany for WHD.global.

May 18-22, 2015

CalConnect XXXIII

We are in Bucharest for CalConnect XXXIII.

March 2-4, 2015

MWC & 4YFN.com

We are attending the MWC in Barcelona and 4YFN.com from March 2-4. 4YFN is a startup event devoted to innovation in the mobile and digital ecosystem and part of GSMA Mobile World Congress. Do you want to meet? Get in touch by sending us an email or tweet us @SchedJoules.

iOS developer

SchedJoules is reinventing event discovery by integrating events like concerts, movies, expositions and tours & activities worldwide with the apps that users already heavily use, like calendars, maps, messengers and virtual assistants. We are a 2017 Startupbootcamp alumnus. Check out our Demo Day pitch at https://www.youtube.com/watch?v=jUtlGDRiTX8

We are looking for someone who is a good fit with our small, international team and who can work independently. Taking responsibility is very important. You have the drive to improve yourself and our team and deliver high quality work. You have a clear opinion on things.

We’re looking for you if you:
✓ Eat and breath iOS/Objective-C/Swift
✓ Are willing and able to lead our growth on iOS
✓ Have an entrepreneurial spirit. We love a ‘can do’ attitude
✓ Can combine freedom with responsibility
✓ Are eager to investigate new technical possibilities and push the boundaries
✓ Have good verbal and written communication skills in English

Are you looking for:
✓ A great chance to build a game changing service that is used by millions of users
✓ A small, agile and international team (Amsterdam/Utrecht/Dresden/Budapest)
✓ Travelling to iOS/Mobile related conferences
✓ Flexible working hours

….then get in touch!

How to apply
✓ Contact us in person in our office in Amsterdam or Utrecht, mail us at hello@schedjoules.com or call us at +31 (0)20 707 22 50
✓ Show us some of your works
✓ Join us for a paid trial week

If your code is good, if you like us, if we like you, you are in!

Do you want to request an API key, discuss calendars and events for your business or do you have any questions regarding our product or company? Happy to help. We’re based in Amsterdam, The Netherlands (UTC +2), we’ll respond within 24 hrs.