Open Banking Developer
CurrentContracted for design and development of Crosskey's Open Banking Platform C°Open.
Jun 2019 - Present
AeroLeads people directory · profile
John Österlund Email & Phone Number
Open Banking Developer
at
Crosskey
1 work email found
@crosskey.fi
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Open Banking Developer
Location
Finland, Finland, Finland
Company size
Who is John Österlund? Overview
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Quick answer
John Österlund is listed as Open Banking Developer at Crosskey, a company with 276 employees, based in Finland, Finland, Finland. AeroLeads shows a work email signal at crosskey.fi and a matched LinkedIn profile for John Österlund.
John Österlund previously worked as Founder at Norrut Åland Ab and Co-Founder at Ax Systems Ab. John Österlund holds Master, Computer Science from Linköping University.
Company email context
Email format at Crosskey
This section adds company-level context without repeating John Österlund's masked contact details.
{first_initial}{last}@crosskey.fi
79% confidence
AeroLeads found 1 current-domain work email signal for John Österlund. Compare company email patterns before reaching out.
Profile bio
About John Österlund
Wide experience in Open Banking and API development. Good with strategy, systems-thinking and finding innovative solutions to complex problems. I like to build solid and simple solutions that are easy to maintain. I have several years of experience in working with AWS infrastructure.INTJ personality; love consistency, structure and logic.
Listed skills include Javascript, Jquery, Web Services, Java, and 40 others.
Current workplace
John Österlund's current company
Company context helps verify the profile and gives searchers a useful next step.
Crosskey
12 roles
John Österlund work experience
A career timeline built from the work history available for this profile.
Founder
Current
Norrut Åland Ab
The company offers developer experience in Java, Spring, API design, Open Banking, PSD2 compliance, AWS infrastructure and more.
Apr 2021 - Present
Co-Founder
Current
Ax Systems Ab
The company develops and maintain the time reporting system tid.ax.
Dec 2015 - Present
Founder
John Österlund Consulting
The company offers developer experience in Java, Spring, API design, Open Banking, PSD2 compliance, AWS infrastructure and more.
May 2005 - Dec 2021
Devops Engineer
Design and development of Enfuce PSD2 Compliance Platform and API Hub, deployed on AWS cloud infrastructure.
May 2018 - May 2019
Application Developer
Working with API infrastructure on BIPS department. Focus on Open Banking and PSD2 compliance regarding APIs, built on AWS cloud infrastructure.
Apr 2017 - May 2018
Application Developer
Development of e-banking systems on Crosskey eBanking department. Focus on capital market systems and integration of third-party systems. Java development including frameworks such as Spring, MyBatis and client side scripting with jQuery.
Apr 2015 - Mar 2017
Application Developer
Development of Internet bank systems, card systems and integration of third-party systems. Enterprise Java development including frameworks as Spring, Struts, mybatis (iBATIS) and client side scripting with jQuery. Using domain driven design (DDD) as structural design principal.
Aug 2009 - Mar 2015
Co-Owner And Developer
Jan 2013 - Sep 2014
Feb 2009 - Jul 2009
System Developer
Developing rich internet applications (RIA) with Adobe Flex, ActionScript, PHP and other web technics. Microsoft Sharepoint development in.NET including creation of custom webparts, pages and workflows. System integration is also a part of my work.
Nov 2006 - Jan 2009
Jun 2001 - Aug 2006
Team & coworkers
Colleagues at Crosskey
Other employees you can reach at crosskey.fi. View company contacts for 276 employees →
EB
Emma Brandt
Colleague at Crosskey
Åland Islands, Åland Islands
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MM
Monica Malmberg
Colleague at Crosskey
Åland Islands, Åland Islands
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JG
Jonas Grönholm
Colleague at Crosskey
Hammarland, Ålands Countryside, Åland Islands, Åland Islands
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NL
Nadja Lindman
Colleague at Crosskey
Sweden, Sweden
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JM
João Mendes
Colleague at Crosskey
Santa Cruz, Madeira Island, Portugal, Portugal
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MS
Mum Sarling
Colleague at Crosskey
Åland Islands, Åland Islands
View →
DM
Daniel Melander
Colleague at Crosskey
Mariehamn, Mariehamn sub-region, Åland Islands, Åland Islands
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ZM
Zkozei Mariehamn
Colleague at Crosskey
Åland Islands, Åland Islands
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HM
Henrik Martola
Colleague at Crosskey
Turku Metropolitan Area, Finland
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JH
Johan Hjälmarstrand
Colleague at Crosskey
Mariehamn, Mariehamn sub-region, Åland Islands, Åland Islands
View →
Emma Brandt
Colleague at Crosskey
Åland Islands, Åland Islands
View →
MM
Monica Malmberg
Colleague at Crosskey
Åland Islands, Åland Islands
View →
JG
Jonas Grönholm
Colleague at Crosskey
Hammarland, Ålands Countryside, Åland Islands, Åland Islands
View →
NL
Nadja Lindman
Colleague at Crosskey
Sweden, Sweden
View →
JM
João Mendes
Colleague at Crosskey
Santa Cruz, Madeira Island, Portugal, Portugal
View →
MS
Mum Sarling
Colleague at Crosskey
Åland Islands, Åland Islands
View →
DM
Daniel Melander
Colleague at Crosskey
Mariehamn, Mariehamn sub-region, Åland Islands, Åland Islands
View →
ZM
Zkozei Mariehamn
Colleague at Crosskey
Åland Islands, Åland Islands
View →
HM
Henrik Martola
Colleague at Crosskey
Turku Metropolitan Area, Finland
View →
JH
Johan Hjälmarstrand
Colleague at Crosskey
Mariehamn, Mariehamn sub-region, Åland Islands, Åland Islands
View →
2 education records
John Österlund education
Master, Computer Science
Education record
Ålands Lyceum
FAQ
Frequently asked questions about John Österlund
Quick answers generated from the profile data available on this page.
What company does John Österlund work for?
John Österlund works for Crosskey.
What is John Österlund's role at Crosskey?
John Österlund is listed as Open Banking Developer at Crosskey.
What is John Österlund's email address?
AeroLeads has found 1 work email signal at @crosskey.fi for John Österlund at Crosskey.
Where is John Österlund based?
John Österlund is based in Finland, Finland, Finland while working with Crosskey.
What companies has John Österlund worked for?
John Österlund has worked for Crosskey, Norrut Åland Ab, Ax Systems Ab, John Österlund Consulting, and Enfuce Financial Services.
Who are John Österlund's colleagues at Crosskey?
John Österlund's colleagues at Crosskey include Emma Brandt, Monica Malmberg, Jonas Grönholm, Nadja Lindman, and João Mendes.
How can I contact John Österlund?
You can use AeroLeads to view verified contact signals for John Österlund at Crosskey, including work email, phone, and LinkedIn data when available.
What schools did John Österlund attend?
John Österlund holds Master, Computer Science from Linköping University.
What skills is John Österlund known for?
John Österlund is listed with skills including Javascript, Jquery, Web Services, Java, Sql, Php, Scrum, and Eclipse.
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