Justas Azna
Verified Expert in Engineering
Software Developer
Copenhagen, Denmark
Toptal member since August 25, 2016
Justas is a web developer and DevOps engineer based out of Denmark. For the past three years, he has been a partner in a web development company. He works mostly on Python and Node.js-based applications with a focus on APIs, software architecture, and deployment automation.
Portfolio
Experience
- JavaScript - 4 years
- Python - 4 years
- Node.js - 3 years
- Express.js - 2 years
- CoffeeScript - 2 years
Preferred Environment
Git, Vim Text Editor, Arch Linux, Red Hat Linux, Debian Linux
The most amazing...
...thing I've developed is a D3.js-based linked data explorer. I used architecture defined in SoLiD-spec for doing a decentralized social web.
Work Experience
Software Development Consultant
Novozymes A/S
- Developed features for an internal big data platform using Python and Node.js.
- Implemented parsers and ingested large volumes of raw DNA and protein data into HBase using Spark and map-reduce.
- Backfilled Solr search indices and HBase tables using Spark and map-reduce.
- Created performance profiles and improvements of critical back-end algorithms using cProfile and Python.
- Parallelized BLAST (Basic Local Alignment Search Tool) workers to get faster protein and DNA sequence alignment results using Python, RabbitMQ, and multiprocessing.
- Implemented data access restrictions for HBase and Solr.
Software Engineer/Partner
Fadeit
- Developed software and provided system administration for IPVISION A/S: Mobile Virtual Network Operator (MVNO).
- Created software and provided system administration for Grundfos A/S. Worked on the implementation of their IoT platform, Gatesense.
- Built software for Alexandra Institute A/S. Worked on an open data portal implementation.
- Developed software for Bitshifters ApS: Implemented a next-generation building intelligence management (BIM) system.
- Managed projects, developed software, and did DevOps for Visualize Wealth, LLC. Worked on releasing the MVC of Viziphi.com, a financial risk analysis system.
- Developed software for Davoodi Pty, Ltd., working on the Automed.io platform.
- Built Hopper.dk, a local service search engine.
- Created Playsignage.com, a digital signage SaaS.
- Developed software for Sirenia ApS. Worked on CCOW context management registry using Go.
Software Developer
Alexandra Institute
- Implemented a free software plugin for CKAN open data portal software. The plugin enables real-time events from CKAN's datastores.
- Implemented Drupal/CKAN integration for user management.
- Developed a RESTful API for the Gatesense IoT platform using Java (Spring MVC).
Software Developer/Sysadmin
iPinion
- Re-implemented an old phone usage accounting system.
- Implemented a call center wallboard solution, an order handling system integrated with a payment gateway and two different mobile network operators (MNO), and self-service portals for B2B and private users.
Software Development Intern
Captator
- Wrote a backup utility using C#.
- Conducted research of real-time web libraries for .NET.
Experience
"Play" Digital Signage SaaS
https://playsignage.comEducation
Professional Degree in Software Development
Business Academy Aarhus - Aarhus, Denmark
Academic Profession Degree (AP) in Computer Science
Business Academy Aarhus - Aarhus, Denmark
Skills
Libraries/APIs
Node.js, Stormpath, ZeroMQ, React, Auth0 API
Tools
NGINX, Git, GitHub, Bitbucket, GitLab, Atlassian Suite, Apache Solr, Biopython, RabbitMQ, Apache, Vagrant, Docker Compose, Vim Text Editor, Asterisk, Puppet, Jenkins, Jekyll
Languages
Markdown, Python 3, CoffeeScript, JavaScript, Python, Go, HTML5, RDF, C#, PHP, Perl, Java, Scala
Frameworks
Apache Spark, Flask, Express.js, Django, .NET, Windows Presentation Foundation (WPF), Spark, Hadoop, Bootstrap 3, Scrapy, Sails.js
Platforms
Linux, Docker, Amazon Web Services (AWS), Debian Linux, Red Hat Linux, Arch Linux, Drupal, Debian, DigitalOcean
Storage
HBase, PostgreSQL, MySQL, CouchDB, Redis, Ceph, MongoDB
Paradigms
MapReduce, Kanban, Test-driven Development (TDD), REST, Continuous Deployment, Scrum, Agile, Functional Programming
Other
Unix Shell Scripting, Technical Project Management, Payment Gateways, WebSockets, Lean Startups
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