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Hi, I'm Kostas Apostolopoulos

Senior DevOps Engineer @ Vechain
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About Me

I am a software engineer with 20 years of experience in web development, cloud computing, blockchain and DevOps. I wrote my first line of code in 1997 on an Amstrad 6128 computer, and I never stopped coding ever since. I graduated top of the 2003 class in my Computer Science BSc and earned my MSc in Adv. Software Engineering with distinction. I have a proven track record of cutting down on operational toil and solving complex problems with high quality software. Beyond coding, I enjoy elevating others in their professional journey through mentoring, presenting, and blogging.

Following my BSc in Computer Science, I worked for SiEBEN (now called Pobuca), an award-winning Microsoft partner in Greece, where I designed, implemented and deployed N-Tier web applications for large corporations like Phillip Morris and The Economist. Then, I moved to Dublin, where I earned my first-class honours MSc degree in Adv. Software Engineering from UCD. Following that, I worked as a Software Development Engineer in the development team of KeyedIn Konfigure, a rapid application development platform. In 2016 I joined Equifax (NYSE: EFX) as a Senior Software Development Engineer, developing web applications that ingest and process large volumes of data, to deliver useful, actionable business insights to its customers. Within Equifax, I transitioned into a DevOps role, building tools and services to support the full DevOps lifecycle of hundreds of projects. In 2019, I worked as a Technical Design Expert for Novartis (SWX: NOVN), where I implemented robust CI/CD pipelines for their globally distributed Salesforce applications and consulted several teams in DevOps best practices. I am currently working as a Senior DevOps engineer for Vechain, where I design, implement and maintain their highly available (99.999%) and scalable global node clusters.

My Specialities

Web Development

13+ years of professional web development for large multinational organizations

Cloud Computing

12+ years of professional working experience with Azure and AWS PaaS and IaaS services

DevOps and SRE

7+ years of professional working experience in cloud infrastructure automation, CI/CD pipelines, monitoring, alerting

Skills & abilities

Agile, DevOps, Site Reliability Engineering
IaC, Immutable Infrastructure, Terraform, Ansible, Docker
Azure DevOps, GitHub Actions, Jenkins, Octopus Deploy
Telemetry, Logging, Prometheus, Grafana, Checkly
Azure, AWS
PowerShell, Bash
ASP.NET (MVC, WebApi, Core, Entity Framework)
Microsoft SQL Server, MongoDb, Azure Storage, AWS S3
NUnit, Selenium, k6
Javascript, Typescript, HTML5, CSS3, Bootstrap

Language skills


Education & jobs

October 2022 - today Senior DevOps Engineer Vechain | Dublin
March 2019 - September 2022 Technical Design Expert Novartis | Dublin, Ireland
May 2018 - March 2019 Senior Software Development Operations Engineer Equifax | Dublin, Ireland
April 2017 - May 2018 Senior Software Development Engineer Equifax | Dublin, Ireland
April 2016 - April 2017 Software Development Engineer Equifax | Dublin, Ireland
October 2014 - April 2016 Software Development Engineer KeyedIn Solutions | Dublin, Ireland
September 2013 - September 2014 MSc in Computer Science University College Dublin | Dublin, Ireland
October 2010 - August 2013 Software Development Engineer SiEBEN Innovative Solutions | Athens, Greece
January 2008 - July 2009 Customer Service The Web | Larissa, Greece
September 2003 - August 2010 BSc in Computer Science Technological Educational Institute | Larissa, Greece
September 1990 - June 2003 Primary and Secondary Education Ellinogermaniki Agogi | Athens, Greece
Latest blog posts

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