Developer of backend systems and services using functional programming, with experience automating IT and administration tasks.
I have done a fair deal of integration and import/export of data, along with investigating undocumented procedures.
I prefer projects on the more technical side, preferably with open-source tools and technologies.
sept. 2020 - present
Developing features and doing bugfixes on our main application, an Angular SPA talking to an (almost) RESTful backend (PHP + Angular + mongodb + OAuth/Keycloak)
Developing features for our mobile apps (iOS + Android) using angular + cordova. Maintaining automated build system (Bitrise). Managing approval and release of mobile apps
Setup of CI/CD (Bitbucket-pipelines) for deployment to beoth legacy stand alone servers and kubernetes on google cloud.
Doing evaluation of pentesting-software and miscellaneous operations/maintenance tasks, mainly in python or bash
nov 2019 - sept 2020
Bugfixing and developing features on main application (PHP, both with Laravel and legacy, Vue + Auroradb + docker)
Developing internal information system using Vue, websockets, Laravel-Vapor
ETL system for vehicle-data (Danish "motorregistret") into nosql, using AWS (lambda, batch, glue, dynamodb, api-gateway) + docker + CircleCI
PDF ripper: a C# + .net framework, webservice for data extraction using Pidgin parser-combinators and AWS Textract, setup of automatic deployment github -> Azure. Testing done using nUnit.
june 2019 - okt 2019
Development and updating of Magento webshops (PHP+MySQL+Linux)
Developing and maintaining frontend systems (Vue+javascript+html)
jan 2019 - mar 2019
Refactoring PHP/Laravel code using PHPUnit
Automated excel-export, Postgres and Influxdb testing
may 2015 - september 2018
Primarily developed backend software (Linux daemons) written in Scala and Java.
Developed the main message-sender: Receive and emit message-jobs via http or from database, implements features (recipient-lists and message templates), throttles messages and prioritizes them (fairness for users who send few messages vs. users who send many), queueing system for high-load scenarios. This eliminated delays for high priority messages (for example passcodes) during high-load scenarios.
Implemented a pseudo “DSL” for message filtering and transform, used for spam-filtering and traffic-routing to save costs. This changed the process from releasing a new version of software, to simply editing some database entries representing the rules whenever a business-change was necessary.
Developed services for receiving and parsing SOAP-formatted MMS-messages.
Developed service for sending message-receipts/reports to HTTP endpoints of customers (i.e. to webservices that are sometimes slow or unreliable)
Various import/export tasks for customer-data using ruby and Scala.
Minor debugging and bugfixing of SMPP-software.
May 2014 - April 2015
Developed core and customer specific solutions for Metazo, an in house QA/ISO9000 web-based software using PHP+MySQL.
Made an automated installer for the customer-hosted version of Metazo using Powershell.
Implemented E-conomic invoicing using REST+SOAP.
Minor systemadministration and network tasts, migrated hosted sites using python-scripts.
January 2013 - April 2014
PHP (Codeigniter, CakePHP) + MySQL + jQuery, primarily for inhouse systems.
Implemented restaurant booking and planning system backend for Gezto.dk
Ruby + Sinatra, REST-API for contact and contact-lists.
Refactored a WindowsPhone app (streaming audio, C#) and got it approved on the app store.
May 2008 - December 2012
Mitigated the complexity of 3 directories (OpenLDAP + win2003AD + win2008AD). Developed a solution where they were combined and syncronized using ActiveLDAP (ruby) and exposed as a REST webservice using Sinatra (ruby)
Transformed the account creation process from various manual scripts and processes, into a fully automated precess. It involved reading and writing files, databases and LDAP/AD directories for the various administration and IT systems (using perl, python, php, ruby) involved when creating a new employee or student account.
Implemented WiFi (EDUROAM) using Freeradius + 802.1X + 802.1Q. Employees and students had separate VLANs provisioned.
Various systemadministration tasks, VMWare, SAN, procurve+Aerohive network/wifi. ActiveDirectory, OpenLDAP, Linux, Apache, firewalls.
October 2004 - December 2006
Various programming and IT-related tasks, using mainly FreeBSD, PHP and MySQL.
Developed features for the main administration and invoicing system (PHP+MySQL) for CopyGene Aps.
Administering network (procurve) and firewall (FreeBSD ipfw) for CopenhagenOfficeHotels.
September 2005 - November 2005
Developed administration and forecasting system using PHP and MySQL.
2010
T6 IT-sikkerhed
1999-2006
Bachelor degree, information technology. Information technology with some mathematical modelling for image/video analysis. Example: http://stalinize.heynjohnsen.dk
1995-1998
Mathematical student
Reads and writes Danish (native language) and English (full professional proficiency).
Married with 3 children.
My spare time is used reading books and strengthtraining.