[About] [Projects] [Resume]
Category: InformationalOlli Vanhoja
Oct 2023


A picture of the author


University of Helsinki, Finland
Bachelor of Science in Computer Science, 2016

Helsinki Metropolia University of Applied Sciences, Finland
Electrical Engineering, 207 ECTS, didn't graduate
Specialization in Electronics and Automation.

Professional Experience

Once, Amsterdam, Netherlands
Developer, Jun 2020 - present
Working on a realtime acyclic graph database project.

  • Tech: C, TypeScript, Intel VTune

Relex Solutions, Venice, Italy
Developer, Sep 2019 - May 2020
Scaling out Relex Plan horizontally.

  • Tech: Kubernetes, Docker, Java, Scala, Clojure, JRuby, and JavaScript.

ZEIT, San Francisco, USA
Developer, Head of Security, DevOps, Jun 2016 - Sep 2019
Now Vercel. I was building the backend of a multi-DC, multi-cloud serverless cloud deployment platform. I worked on everything from the deployments platform, to X.509 certificates, to the DNS API, and to platform security. I was also helping to push some new IETF drafts important for the services provided by ZEIT.

  • Programming languages: TypeScript, JavaScript, C, COBOL

LM Ericsson, Jorvas, Finland
Developer, March 2014 - Jun 2016
Developing new features and fixing bugs for Ericsson IP Operating System, as well as porting it to new platforms such as SGSN-MME. The software was designed to support multiple POSIX-compliant host operating systems, and it was written in C89/C99 using a custom BSD-style API wrapper to the system services.

  • Internet protocols: MPLS, VRRP, DHCP, VLAN
  • Related products: Router 6000 series, SSR 8000 family, SGSN-MME

Arbitron Mobile Oy, Espoo, Finland
Junior System Admin, May 2013 - Jan 2014
Formerly Zokem Oy and now Nielsen. I was mainly working with the server infrastructure, improving server deployment automation, and hardening server security. I was also managing the LDAP and Kerberos system that was deployed globally for controlling access to the production servers. I designed an asymmetrically encrypted audit log system for all production access.

Ninjaware Oy, Helsinki, Finland
Member of the Board,
Director of Bitwise Operations
, June 2011 - Aug 2013
Mobile game, mobile game technology, and business software development and testing.

  • Tech: C#, Java, Android, iOS

ABB Oy Drives, Helsinki, Finland
Trainee/Developer, May 2009 - Dec 2012
Software development and testing.

  • Developing a communication protocol for a multiprocessor architecture
  • Hardware and software design for several test automation systems
  • Supporting subcontracting of test automation
  • Related products: ACS880, ACS580, ACSM1, ACS850, ACS800

Other Professional Activities

Microsoft Graph Security Hackathon, Online
Judge, ZEIT, April 2019
A hackathon exploring the possibilities of the Microsoft Graph Security API. The prize pool was set to $15000.

Positions of trust

University of Helsinki, Helsinki, Finland

  • Student member of the University Collegium, 2014 - 2015
  • Student member of Faculty Council, Faculty of Science, 2014 - 2015

Puotinkylän Valtti ry, Helsinki, Finland
A local sports society.

  • Secretary, ICT, 2009 - 2011
  • Board member, ICT, 2004 - 2008

Helsingin Kokoomuksen Nuoret HKN ry, Helsinki, Finland
A local association of the youth wing of the National Coalition Party.

  • Vice chairman, 2013 - 2014
  • Board member, 2012

Akavan opiskelijat, Finland
A group of delegates for student members in Akava.

  • Regional contact person of Akavan opiskelijat, 2013
  • Member of the regional executive team of Akava Uusimaa, 2013
  • Member of Akava's Student Council AOVA, 2011

Helsingin Insinöörit HI ry, Helsinki, Finland
A local association of the Union of Professional Engineers in Finland (UIL).

  • Board member, 2012

UIL, Koulutus- ja elinkeinopoliittinen valiokunta, Finland
A labour union's committee for education and industrial policy.

  • Member, 2011 - 2012

Insinööriopiskelijaliitto IOL ry, Finland
The Finnish Union of Engineering Students.

  • Board member, 2011

Uudenmaan Insinööriopiskelijat UIO ry, Helsinki, Finland
Local association of the Finnish Union of Engineering Students in Metropolia.

  • Board member, 2012
  • Board member, ICT 2008 - 2010

Helsingin Insinöörioppilaat HIO ry, Helsinki, Finland
A local association of the Finnish Union of Engineering Students in Metropolia.

  • Vice-chairman, 2009 - 2012

Puotinkylän Valtti ry, Helsinki, Finland
Local sports society.

  • Secretary, ICT, 2009 - 2011
  • Board member, ICT, 2004 - 2008

Telehpy, Espoo, Finland
Telehpy is a group for gay and lesbian students at Helsinki University of Technology.

  • Secretary, 2009