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@verejoel
Last active March 11, 2022 12:15
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My JSON resume
{
"meta": {
"theme": "elegant"
},
"basics": {
"name": "Joel Verezhak",
"label": "DevOps Consultant",
"summary": "Motivated and driven software engineer, system architect, and scientist, passionate about bringing new ideas to life. . Looking for a role where I can combine my love of mathematics, physics, and a new-found appreciate for computer science to build truly awe-inspiring and world altering applications. I am an automation and cloud enthusiast, and admire clean architecture that adopts the principles of GitOps and the 12-factor applications.",
"email": "j.verezhak@gmail.com",
"location": {
"city": "Wettingen",
"countryCode": "CH"
},
"profiles": [
{
"url": "https://github.com/verejoel",
"username": "verejoel",
"network": "github"
}
]
},
"languages": [
{
"language": "English",
"fluency": "Native speaker"
},
{
"language": "German",
"fluency": "B2"
}
],
"education": [
{
"endDate": "2017-02-12",
"startDate": "2012-09-29",
"area": "Condensed Matter Physics",
"studyType": "PhD",
"institution": "Rutherford Appleton Laboratory, UK"
},
{
"endDate": "2012-07-16",
"startDate": "2008-03-09",
"area": "Physics",
"studyType": "Master of Physics (BSc MPhys)",
"institution": "The University of Warwick, UK",
"score": "First class honors (GPA 4.0)"
}
],
"references": [
{
"reference": "Dr. Verezhak is an intelligent, innovative and creative person. He was able to develop new ideas for future research and made a strategic planning for their realization. Using his background from superconductivity and quantum magnetism, he carried out a detailed investigation of novel ground states highly topical materials. Without reservation, I therefore give Dr. Joel Verezhak my highest recommendation. I am absolutely sure that he will continue to be extremely successful in pursuing his career and we would be happy to collaborate with him again in the future.",
"name": "Dr. Hubertus Luetkens, Head of Bulk Muon Group at PSI"
}
],
"skills": [
{
"keywords": [
"Terraform / Packer / Vault / Consul",
"Ansible",
"Gitlab / GitOps / CICD",
"Kubernetes / OpenShift",
"GCP / AWS"
],
"name": "DevOps"
},
{
"keywords": [
"Python / Object Oriented Programming",
"Go / Golang",
"Redis",
"MariaDB / SQL",
"Kafka"
],
"name": "Backend"
},
{
"keywords": [
"Identity and Access Management (IAM)",
"Web Application Firewall (WAF)",
"PKI / TLS",
"OAuth2 / SAML"
],
"name": "Security"
},
{
"keywords": [
"PHP Laravel / Django / Flask",
"Inertia / Vue / React",
"CSS / Bootstrap / Tailwind",
"Heroku / DigitalOcean"
],
"name": "Web Apps"
}
],
"awards": [
{
"title": "Undergraduate Research Scholarship",
"date": "2011-09-01",
"awarder": "The University of Warwick",
"summary": "Awarded a bursary with value of £1000 to pursue a scientific research project in the field of nanotechnology."
},
{
"title": "Undergraduate Research Scholarship",
"date": "2010-09-01",
"awarder": "The University of Warwick",
"summary": "Awarded a bursary with value of £1000 to pursue a scientific research project in the field of graphene synthesis."
}
],
"publications": [
{
"name": "For a full list of publications, check my ORCID",
"url": "https://orcid.org/0000-0003-3774-9704",
"releaseDate": "2021-10-11",
"summary": "Please find my first-author publications below."
},
{
"name": "Unconventional Superconductivity in La7Ir3 Revealed by Muon Spin Relaxation",
"publisher": "Physical Review Letters",
"releaseDate": "2015-12-30",
"url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.267001",
"summary": "Using muon spin relaxation, a study of the superconductivity in La7Ir3 was conducted. The results suggest an unconventional state, that is the first of its kind to be discovered in this family of materials."
},
{
"name": "Superconducting and normal-state properties of the noncentrosymmetric superconductor Re3Ta",
"publisher": "Physical Review B",
"releaseDate": "2018-09-10",
"url": "https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.104506",
"summary": "A full and detailed characterization of the superconductivity in the noncentrosymmetric compound Re3Ta, using a wide variety of lab-based and synchrotron techniques."
},
{
"name": "Probing the superconducting ground state of the rare-earth ternary boride superconductors RRuB2 (R=Lu,Y) using muon-spin rotation and relaxation",
"publisher": "Physical Review B",
"releaseDate": "2018-03-12",
"url": "https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.094506",
"summary": "The rare-earth ternary boride superconductors Lu/YRuB2 were investigated using low-temperature muon-spin spectroscopy."
}
],
"work": [
{
"name": "Knowledge Lab AG",
"location": "Zurich, CH",
"description": "Boutique IT consultancy in the financial sector",
"position": "Senior Security Cloud Engineer",
"url": "https://knowledge-lab.ch/en/knowledge-lab-home.html",
"startDate": "2019-06-01",
"summary": "Bringing secure DevOps best practices to the banking industry.",
"highlights": [
"Designed, built, and deployed the security infrastructure for a banking mobile app with around 16,000 active users.",
"Implemented Device Token authentication for a mobile banking application, integrating seamlessly with existing authorization framework.",
"Built an in-house Terraform Provider (Golang) for a partner company's web-application firewall software.",
"Performed the first cloud-based integration on Amazon Web Services of proprietary API Gateway, including automated configuration management using Ansible.",
"Advocate for the adoption of and migration to Google Cloud Platform. Installed Gitlab on GKE, configured IAM policies for runner Workload Identities, and enabled my colleagues to start implementing CI/CD best practices as part of their daily work."
]
},
{
"name": "Paul Scherrer Institut",
"location": "Villigen, CH",
"description": "Large-scale physics research in superconductivity and magnetism",
"position": "Postdoctoral Researcher",
"url": "https://www.psi.ch/en",
"startDate": "2017-07-01",
"endDate": "2019-05-31",
"summary": "Performed cutting-edge research on unconventional magnetic and superconducting systems using muon-spin spectroscopy. Also responsible for aiding external users with their experiements, as well as designing new instruments for the future.",
"highlights": [
"Analysed large time-series datasets using machine learning algorithms (Python), extracting knowledge and insights into the underlying physical processes",
"Pioneered a novel approach relating directly physical simulations of a system to the observed muon timeseries data.",
"Provided support to external experimental teams, including advising on experimental design and architecture, technical support, data analysis, and theoretical modelling and interpretation.",
"Authored and co-authored 17 papers during my tenure of two years, including journals such as Nature Physics and Physical Review Letters"
]
},
{
"name": "Berlin International College",
"location": "Berlin, DE",
"description": "Studienkolleg for foreign students entering German higher-education",
"position": "Lecturer (Dozent)",
"startDate": "2017-01-06",
"endDate": "2017-06-28",
"summary": "Taught courses in Classical Mechanics, Electrical Engineering, and Mathematics for pre-university students, in preparation for the German Studienkolleg examinations.",
"highlights": [
"Designed 3 six-month long courses in physics and mathematics from scratch.",
"Set homework assignments and examinations, and gave tailored feedback to each student",
"Delivered courses to 8 students from a variety of different backgrounds",
"All of my students made it to their desired universities."
]
},
{
"name": "University of Warwick",
"location": "Coventry, UK",
"description": "Supporting undergraduate studies",
"position": "Laboratory demonstrator",
"startDate": "2012-10-16",
"endDate": "2015-05-02",
"summary": "Demo-ed labs in for third-year masters students and first-year electronics students."
}
],
"projects": [
{
"name": "Security Cloud Migration to AWS",
"description": "Enterprise 'lift-and-shift' of WAF, API Gateway, and IAM software to AWS for a customer.",
"highlights": [
"A big challenge was lack of Kubernetes - nonetheless, I was able to quickly adapt and deployed IAM containers to Elastic Container Service EC2 cluster.",
"Achieved a working migration within 20 working days, and a production-ready system passing tests within 30 days.",
"Wrote extensive documentation and held knowledge transfer sessions at the close of the project.",
"Initially a short-term project, my performance encouraged the client to sign-up for an ongoing maintenance contract and SLA."
],
"keywords": [
"Cybersecurity / Cloud Migration / Enterprise",
"Gitlab / CICD",
"Cryptography / Authentication & Authorization / Device Tokens"
],
"startDate": "2021-11-01",
"roles": ["Architect", "Developer"],
"type": "integration"
},
{
"name": "Google Cloud Platform foundation setup",
"description": "Laid the groundwork for future development in Google Cloud Platform.",
"highlights": [
"Adopted best-practices based on the Google Cloud Security Framework and Beyond-prod whitepapers.",
"Managed a team of developers to bootstrap the K-Lab GCP organization, including user and group federation from Azure AD.",
"Configured hub-and-spoke network model with HA VPN connection to the on-premises network, and DNS forwarding between GCP Cloud DNS and on-prem Active Directory Domain Controllers.",
"Over 200 pipelines are run on a typical workday, with more than 10 projects in active development."
],
"keywords": [
"Google Cloud Platform",
"Infrastructure as Code / Terraform",
"Identity Federation / Azure AD"
],
"startDate": "2022-01-01",
"roles": ["Architect", "Developer"],
"type": "cloud"
},
{
"name": "Self-managed Gitlab implementation.",
"description": "Introduced Gitlab as the standard for version control and continuous integration/delivery at K-Lab.",
"highlights": [
"Deployed highly-available, resilient, scalable, and cost-effective self-managed Gitlab on Google Kubernetes Engine in GCP in a production environment. Everything is managed with Terraform.",
"User identities federated from Azure AD authoritative IdP, with internal permissions managed with Gitlab groups (again with Terraform).",
"System is highly-available, resilient, scalable, and cost-effective.",
"Setup Workload Identities for specific Gitlab runners, linked to specific Gitlab groups, providing granular access control to Foundation, Infrastructure, and Application pipelines.",
"Conducted knowledge transfer sessions and wrote extensive documentation, which encouraged a high-user uptake.",
"Over 200 pipelines are run on a typical workday, with more than 10 projects in active development."
],
"keywords": [
"Gitlab / CICD",
"Everything as Code",
"Identity Federation / Azure AD"
],
"startDate": "2022-01-01",
"endDate": "2022-03-01",
"roles": ["Architect", "Developer"],
"type": "integration"
},
{
"name": "Device Token authentication for Mobile Banking Application",
"description": "Enabled users to login using biometric means (TouchID / FaceID) by implementing Device Token authentication for a mobile banking application.",
"highlights": [
"Device Token authentication flow integrates seamlessly with existing OAuth2 authorization framework, and is fully backwards compatible.",
"Reduced the percentage of failed or aborted logins by 73% since introduction of Device Token authentication.",
"Configuration recorded as code in version control, with changes continuously integrated and delivered using Gitlab pipelines."
],
"keywords": [
"Configuration as Code",
"Gitlab / CICD",
"Cryptography / Authentication & Authorization / Device Tokens"
],
"startDate": "2021-09-01",
"endDate": "2022-01-31",
"roles": ["Architect", "Developer"],
"type": "integration"
},
{
"name": "Terraform Provider for proprietary WAF and API Gateway",
"description": "Built Golang HTTP client and Terraform Provider for partner cybersecurity software.",
"highlights": [
"Successful PoC, with support for creating and importing Virtual Hosts and attaching TLS certificates.",
"Test-driven development approach with unit and acceptance tests - current overall coverage of 82.3% (HTTP client)",
"Continuous integration, testing, and deployment across multiple Golang versions using Github Actions pipeline."
],
"keywords": [
"Golang / Terraform / Provider Development / HTTP Client",
"Cybersecurity",
"Test-driven Development",
"Github Actions"
],
"startDate": "2021-04-01",
"endDate": "2021-10-01",
"roles": ["Architect", "Developer"],
"type": "application"
},
{
"name": "Cloud Security Infrastructure for Mobile Banking application",
"description": "Designed and built the authentication and authorization infrastructure for a mobile banking application",
"highlights": [
"App has gone-live successfully with around 16,000 e-banking users",
"Designed OAuth2 Authorization Code Grant flow incorporating federation of user identities across realms",
"Highly-available and fault tolerant API Gateway and web application firewall deployment, with automated configuration on scale-out",
"Used GitOps to realise 100% infrastructure- and configuration-as-code, with continuous integration and deployments on-demand, and minimal manual hacks"
],
"keywords": [
"GitOps / GitLab",
"Infrastructure as Code / Configuration as Code",
"CICD",
"Cybersecurity / Authentication & Authorization / OAuth2"
],
"startDate": "2020-10-01",
"endDate": "2022-01-31",
"roles": ["Architect", "Developer"],
"type": "integration"
},
{
"name": "Next Best Offer for Banking Products",
"description": "Built a recommendation system based on implicit customer ratings of banking products.",
"highlights": [
"Used RFM analysis to model implicit customer ratings for particular banking products.",
"Leveraged open-source Python library to train a model to generate Top N predictions for additional products customers may appreciate.",
"Implemented business logic on top of ML predictions, in collaboration with domain experts and SMEs.",
"FastAPI written to expose training and prediction endpoints, with the whole thing deployed to OpenShift."
],
"keywords": [
"Machine Learning / AI",
"Python / Numpy / SciPy / FastAPI",
"Recommender Systems / Implicit ratings",
"OpenShift"
],
"startDate": "2019-06-01",
"endDate": "2020-10-01",
"roles": ["Architect", "Developer"],
"type": "application"
}
],
"interests": [
{
"name": "Family",
"keywords": ["Hiking", "Swimming / Thermal Baths", "Restaurants"]
},
{
"name": "Music",
"keywords": [
"Opeth",
"Dream Theater",
"Porcupine Tree",
"David Bowie",
"Tenacious D",
"Alter Bridge",
"Gojira"
]
},
{
"name": "Gaming",
"keywords": ["MMO", "Strategy"]
},
{
"name": "Open Source"
}
]
}
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