Profile cover photo
You're now following
Error following user.
This user does not allow users to follow them.
You are already following this user.
Your membership plan only allows 0 follows. Upgrade here.
Successfully unfollowed
Error unfollowing user.
You have successfully recommended
Error recommending user.
Something went wrong. Please refresh the page and try again.
Email successfully verified.
User Avatar
$30 USD / hour
aberystwyth, united kingdom
$30 USD / hour
It's currently 9:39 PM here
Joined May 29, 2014
0 Recommendations

Owain J.


5.0 (1 review)
$30 USD / hour
aberystwyth, united kingdom
$30 USD / hour
Jobs Completed
On Budget
On Time
Repeat Hire Rate

Full-stack / "many-stack" software engineer

Strong background using Linux (predominantly RHEL/CentOS/Fedora), lots of experience with Docker, Kubernetes, CI/CD (GitLab CI + ArgoCD), Ansible, expert Python dev, 5 years developing RESTful web APIs within distributed systems, highly parallel shell scripting in the context of High-Performance Compute clusters (Sun Grid Engine etc), efficient database design and querying i.e. Postgres + TimescaleDB, Elasticsearch. Also experience working with lower-level programming; developing for microcontrollers and SBCs, optimizing OpenCV vision algorithms for ARM (Raspberry Pi), implementing machine learning algorithms in constrained environments.

Contact Owain J. about your job

Log in to discuss any details over chat.


Changes saved
Showing 1 - 1 out of 1 reviews
Filter reviews by:
$558.00 USD
Ridiculously smart and a very hard worker.
C Programming
Shell Script
User Avatar
Flag of Greg P.
9 years ago


Software Engineer

National Oceanography Centre
Oct 2015 - Present
Responsible for the development of the MARS Portal ( ), providing a common web interface for scientists and technicians to view oceanographic projects. This was the predecessor to the Oceanids C2 project, a UK government funded project to increase national capability involving autonomous oceanographc research. I have spent most of my time NOC developing large parts of the C2 system from the ground up. [Python, Docker, Kubernetes, Flask, PostgreSQL+TimescaleDB, ...]

Software Developer

Plymouth Marine Laboratory
Jul 2012 - Aug 2013 (1 year, 1 month)
Worked within the Remote Sensing Group at PML for the Industrial Year placement of my computer science degree. Developed lots of little tools used internally (lots of Bash, Python and the dreaded C-Shell), made lots of little improvements to our public websites (primarily the NEODAAS 'MultiView' website), and also handled satellite imagery data requests for our customers / other PML staff.

Software Developer

Newport University Cognitive Robotics Research Center
Jun 2010 - Aug 2011 (1 year, 2 months)
As some very interesting summer work, I was hired by Newport University's Cognitive Robotics Research Center, to set up a cluster of HP servers for the lab, as well as some programming work; modifying the SimSpark robotics simulator to make it a playable football simulation. I continued to assist the robotics team during their time at the National Eisteddfod for Wales. The following year, I spent the summer at the CRRC assisting with some research for the "RoboSkin" European project. I wrote a framewo


Intelligent Systems MSc

University of Wales, Aberystwyth, United Kingdom 2014 - 2015
(1 year)

Computer Science BSc

University of Wales, Aberystwyth, United Kingdom 2010 - 2014
(4 years)


Machine Learning



Oceanids C2: An Integrated Command, Control, and Data Infrastructure for [...] Marine Systems

Frontiers in Marine Science: Ocean Observation
(This paper describes in detail the large project I have been involved in since its conception 5 years ago - a unified, web-based control interface for the oceanographic research community to more effectively operate autonomous research platforms in the ocean in order to make best use of them for collecting scientific data. I was, along with the others in my small team, responsible for the design and implementation of this microservices architecture, RESTful API (OpenAPI v2/v3) based system.)

Marine Science from an Armchair: A Unified Piloting Framework for Autonomous Marine Vehicles

Conference proceedings - Oceans 2019, Marseille, France, 17-20 June 2019
The UK's National Marine Equipment Pool contains over 40 Autonomous Marine Vehicles for use by the UK marine science community. In order to deliver science consistently, the different types of vehicle each require considerable training and a large pool of trained operators to monitor and pilot these vehicles whilst at sea. In this paper, we present the development of a new unified piloting framework. Our work allows pilots to monitor and control a range of AMV types from any web-capable device.

Shadow detection for mobile robots: Features, evaluation, and datasets

Spatial Cognition & Computation, 18 (2). 115-137
Shadows have long been a challenging topic for computer vision. This challenge is made even harder when we assume that the camera is moving, as many existing shadow detection techniques require the creation and maintenance of a back- groundmodel. This article explores the problem of shadow modelling from a moving viewpoint (assumed to be a robotic platform) through comparing shadow-variant and shadow- invariant image features —primarily color, texture and edge- based features.

Identification and Production of Simple Tactile Gestures

Proceedings of the ACM/IEEE International Conference on Human-Robot Interaction, Workshop on Advances in Tactile Sensing and Touch- Based Human-Robot Interaction. Boston, Massachussetts, March 5-8, 2012
This paper describes a method for identifying and producing three “simple” tactile gestures of “tap,” “poke” and “push”. The gesture data is collected from a large sample size of over 200 people using a small humanoid robot fitted with 648 capacitive sensors. A temporal pressure profile is produced for each tactile gesture and reproduced by the robot. The profiles show a measurable difference in both the pressure applied and the duration of the applied pressure between each tactile gesture. The human

Contact Owain J. about your job

Log in to discuss any details over chat.


Preferred Freelancer
Identity Verified
Payment Verified
Phone Verified
Email Verified
Facebook Connected


us_eng_1.png US English 1 100%
shell-script.png Shell Scripting 1 90%
python-1.png Python 1 88%
html5-basic-1.png HTML5 1 83%
Previous User Next User
Invite sent successfully!
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2023 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.