Reza Jelveh, Big Data Architect and Developer in Berlin, Germany
Reza Jelveh

Big Data Architect and Developer in Berlin, Germany

Member since October 8, 2017
Reza has worked as a CTO for various startups and a German government institution with a one billion revenue that needed restructuring. Ever since he dismantled his first VCR over 30 years ago, Reza has been passionate about building meaningful hardware and software that people use and love. His obsession has grown to include a love for solving complex problems across a broad spectrum of technologies.
Reza is now available for hire

Portfolio

Experience

  • Performance 15 years
  • Architecture 12 years
  • Agile Software Testing 7 years
  • Kubernetes 4 years
  • Fuzz Testing 4 years
  • Terraform 3 years
  • Machine Learning Automation 3 years
  • Google Cloud 3 years

Location

Berlin, Germany

Availability

Full-time

Preferred Environment

Vim Text Editor, Linux

The most amazing...

...project I've done was reverse-engineer Apple's bootloader and migrate from VMware to KVM, decreasing maintenance and saving millions of dollars recurring fees.

Employment

  • Solutions Architect

    2020 - PRESENT
    Industrial Automotive Machine Learning (via Toptal)
    • Provided strategic guidance to the CIO and the directors of autonomy solutions on security, platform, integration, and edge data processing.
    • Designed an AWS machine learning architecture platform.
    • Integrated HSM for a secure developer's access to infrastructure.
    • Designed a Kubernetes enterprise storage solution for hybrid cloud solutions.
    Technologies: Amazon Web Services (AWS), Kubernetes, AWS, IoT Security, Leadership
  • DevOps Engineer | Software and System Architect | Python and Data Processing Architect

    2018 - PRESENT
    Rio Tinto (via Toptal)
    • Architected a scalable containerized solution for a seismic analytics platform for real-time sensor analysis.
    • Led a development team and handled resources; advised the client on restructuring previous resources; hired and directed the development of a back-end and front-end application. Introduced asynchronous standups to allow collaboration across timezones.
    • Introduced a Django-based REST API for the unified access of processed data. Built a real-time web integration in Django.
    • Enhanced a major performance and architectural review and rewrites of all components involved. I rewrote and architected various pieces of Python code into a releasable versionable library.
    • Reverse-engineered a legacy database and storage systems for integration in a Kafka streaming re-architecture, significantly reducing the latency in the data access. I built a Kafka-streaming solution for ingesting legacy data in Kotlin.
    • Designed and implemented a scalable on-premise Kubernetes-based cluster with deployment in a copper mine. It mirrored the deployment on the cloud for developers without the need for access to the internal corporate processes.
    • Developed a Go connector to extract legacy data for stream processing in Kafka.
    • Implemented near real-time processing of seismic events. Also, I matched requirements with potential streaming solutions Flink, Pachyderm, Argo, Airflow, NiFi, Spark, and Flink to provide the best solution to the client.
    • Rearchitected the application to reduce the amount of data passed around in messages and removed and replaced Kafka dependency for normal messaging to Kafka streams processing where it was necessary.
    • Profiled and rewrote major parts of the application, turning them into a Python library, and added Python packaging and testing infrastructure with corresponding build pipelines.
    Technologies: Cloud, Azure Kubernetes Service (AKS), DevOps, Ceph, Redis, Kotlin, Go, GlusterFS, MongoDB, Kubernetes, Apache Kafka, Django, Azure, Terraform, Leadership, Cloud Security, ARIS Cloud
  • Freelance Developer

    2018 - PRESENT
    talkyoo
    • Built the original transition to Rails 2 and integrated the payments infrastructure, working closely with the CTO, CEO, and lead designer on commercializing the product and A/B testing migration of the existing free customers.
    • Implemented a GitLab CI integration with Google Cloud platform.
    • Designed a Google Cloud architecture with Google Cloud, GKE, and Terraform.
    • Terraformed the on-premise vSphere infrastructure and added an ELK Elasticsearch cluster for monitoring.
    • Dockerized the platform for Kubernetes use. I migrated the existing manually installed Kubernetes cluster to an automated Kubespray setup and connected it to the GitLab CI.
    Technologies: Cloud, DevOps, Google Kubernetes Engine (GKE), Google Compute Engine (GCE), SaaS
  • Architect

    2021 - 2021
    Computer Vision/3D Printing Data Processing via Toptal
    • Reviewed the current infrastructure and assessed scalability of the current solution.
    • Created a multi-tenant AWS design with strict data segregation necessary for the enterprise clients of this 3D printing validation startup.
    • Provided scalable design for hybrid sensor to cloud infrastructure.
    Technologies: Python, AWS
  • DevOps Consultant

    2021 - 2021
    Toptal Client
    • Introduced Autoscaling for Kafka, using CruiseControl.
    • Coached the client on how to autoscale Kafka consumer groups in Kafka.
    • Advised the client on Kubernetes persistent volume setups and Kafka Clusters across Availability Zones.
    Technologies: Apache Kafka, CruiseControl, Prometheus, Azure Kubernetes Service (AKS), Kubernetes
  • Solution Architect

    2020 - 2020
    Industrial 3D Printing Quality Control Startup (via Toptal)
    • Designed a multi-tenant secure cloud Kubernetes infrastructure for a platform that supports multiple enterprise clients secure compartmentalized ML workflows.
    • Worked with the client to educate and design an easy-to-use job queuing as a step before the ML pipeline for high-velocity integration.
    • Educated the client on designing the aforementioned autoscaling solutions with Terraform on AWS.
    Technologies: Amazon Web Services (AWS), RQ, Terraform, TensorFlow, AWS, Python, SaaS
  • CTO

    2020 - 2020
    Toptal Law Firm Client
    • Restructured the team, thereby reducing its size by half and improving velocity tenfold; migrated the team to a more accountable, results-driven work mode, and coached the client on how to do so without my help.
    • Recruited a new team and trained the CEO on the importance of engineering quality; created an environment for him to take over the lead with minimal effort.
    • Led technology and product decisions temporarily along with the development and communication ground rules to allow the CEO to run a new performance team efficiently.
    Technologies: Vue.js, Heroku, Ruby on Rails (RoR), CTO, Mentorship & Coaching, Leadership
  • CTO

    2016 - 2019
    Association of Statutory Health Insurance Physicians
    • Planned and coordinated the wiring, data center, wireless, and security in the €40 million construction of the new HQ.
    • Guided the installation of 100G MTP wiring as well as the necessary core drillings for a future-proof construction.
    • Introduced Agile project management to the organization.
    • Mentored young developers and product owners to grow further on their own.
    • Wrote the blueprint for transitioning the current on-premise domain controller (DC) to a private cloud.
    • Guided the transition of network access control, physical access control, and system architecture.
    • Introduced Angular and Ruby on Rails for the new web projects.
    Technologies: DevOps, .NET, Oracle, Java, VMware, Ruby on Rails (RoR), Ruby, CTO, Mentorship & Coaching, Leadership
  • DevOps Engineer

    2018 - 2018
    In One Motion
    • Created a one-click solution for generating and updating secure Windows images customized for the Google Cloud to be used with graphic acceleration.
    Technologies: Cloud, DevOps, Ansible, Packer, Terraform, Remote Desktop Protocol (RDP), Windows Server, Ruby on Rails (RoR), Ruby
  • Cloud Computing Director

    2014 - 2015
    Softsage Solutions
    • Reverse-engineered Apple's bootloader and extended the EDK for an OS X boot.
    • Automated software development onboarding environments with Ansible.
    • Improved Sauce Labs' cloud performance by up to 38% and boot times by over 17%. Analyzed virtualized I/O, networking, and other bottlenecks against a bare-metal performance.
    • Designed and built preboot environments to migrate hundreds of Mac minis from VMware to KVM.
    • Implemented custom cloud deployment and performance work.
    • Developed packer imaging for Mac and Windows images.
    Technologies: Cloud, DevOps, BladeCenter H, VMware, Ansible, Python, Ubuntu, Boot, PXE, UEFI, KVM, CTO, Mentorship & Coaching, Leadership
  • Team Lead Web

    2014 - 2014
    Fly Victor
    • Led a team of web developers to build the new web platform with Angular and the Node.js API.
    • Increased the conversion rates for new visits by 29%.
    • Oversaw launch process, massively increasing turnaround on first-time private jet charter customers.
    Technologies: MongoDB, Angular, WordPress, Percona, Node.js, Leadership, SaaS
  • Software Engineer

    2012 - 2013
    Center for Business and Information Technologies
    • Reviewed and distributed an XMPP application for the Department of Homeland Security.
    • Designed and built the first RESTful Medicaid API.
    • Wrote special tooling to allow normal developers to modify data structures in the Dynamics CRM.
    • Evaluated the use of AWS GovCloud for Medicaid solutions.
    Technologies: Customer Relationship Management (CRM), XMPP, Erlang, Ruby on Rails (RoR), Ruby, .NET
  • Principle Software Architect

    2009 - 2012
    talkyoo
    • Wrote significant portions of the web application.
    • Integrated various payment gateway systems before the age of Stripe.
    • Introduced Chef for infrastructure automation.
    Technologies: DevOps, SOAP, VMware, Ruby on Rails (RoR), Ruby, Chef
  • Software Architect

    2008 - 2009
    TalentRun GmbH
    • Improved the database-heavy app substantially along with the Percona engineers.
    • Optimized the application by introducing a full-text search and moving all the necessary queries from the relational database.
    Technologies: Sphinx Search Engine, Memcached, MySQL, Zend Framework, PHP
  • Junior Engineer

    2007 - 2008
    Acculogic, Inc.
    • Built a new circuit testing algorithm to improve the performance of the checks against golden boards.
    • Constructed custom solutions for Intel to use with their circuit testing machinery.
    • Implemented a new circuit testing system using magnetic fields.
    Technologies: C++, Integrated Circuit Testing, Information & Communications Technology (ICT)

Experience

  • Eblotter

    Role: CTO | Co-founder
    • Designed and developed a price discovery platform for ETL brokers for one of the major securities brokerage firms.
    • Built Eblotter with React and Redux on a Ruby on Rails API with PostgreSQL as the datastore.

  • Universal Ctags
    https://ctags.io/

    • Forked exuberant Ctags and moved it to a new organization with the amazing work of Masatake Yamato.

  • Linux | EDKII | EFI | KVM | Qemu

    • Fixed initialization of SATA devices.
    • Added several protocols and fixes to the open-source UEFI bootloader and Qemu to unmodified macOS to boot in Qemu.
    • Added an implementation of an HFS+ filesystem driver to EDKII.
    • Created custom Linux boot images to migrate VMware ESXi to Linux.

  • MPlayer | FFmpeg

    • Executed the AltiVec CPU optimizations in the FFmpeg Swscaler.
    • Implemented savage graphics for the VIDIX driver.
    • Implemented an NSV demuxer.
    • Added seeking in Real files without an index.
    • Created the first Musepack decoding patch.

  • Spca5xx Generic Linux Camera Driver

    • Ported Spca5xx to Kernel 2.6.

  • Embedded Linux and Android Work

    • Created Yocto-embedded Linux images for an iMX6 platform.
    • Built custom Android images for home video and Mako-based CyanogenMod devices.

  • Go FreeNAS API Client
    https://github.com/fishman/go-freenas

    • Wrote a Go FreeNAS API client for use with the Terraform provider that I created.

  • FreeNAS Terraform Provider
    https://github.com/fishman/terraform-provider-freenas/

    • Created a Terraform FreeNAS provider to manage the NAS from Terraform, making it much nicer and easier to use in production environments.

  • Satellite Communication Simulator

    I added layer 2 to a niche network simulator to simulate layer 2 behavior for Inmarsat satellites. This allowed simulating communication for FDR P2P transfers in Inmarsat zones to estimate the optimal data transfer between planes.

  • Added Nuvoton | Ducky Support to QMK | ChibiOS
    https://qmk.fm/

    QMK is an embedded keyboard distribution that runs on ChibiOS—an RTOS. I added support for a keyboard I bought and used for a while.

    The keyboard uses a Nuvoton NUC123 SoC. I first mainlined support for the Nuvoton platform to ChibiOS and then mainlined the keyboard support to QMK.

    I am currently working on porting the platform to Zephyr.

Skills

  • Languages

    Python, Ruby, Assembler x86, C++, C, Solidity, Embedded C, Java, Erlang, PHP, Go, Kotlin, GraphQL
  • Frameworks

    Angular, AWS HA, Truffle, .NET, Django, Ruby on Rails (RoR)
  • Libraries/APIs

    Ruby on Rails API, Node.js, TensorFlow, Java Security, React, Vue.js, RQ
  • Tools

    Packer, GitLab, GitHub, Git, RSpec, Vim Text Editor, Terraform, AWS CloudFormation, Ansible, Helm, Wireshark, Azure Kubernetes Service (AKS), GitLab CI/CD, Jenkins, Logstash, Kibana, Elastic, RabbitMQ, Shell, Puppet, Chef, Kafka Streams, VMware, Google Compute Engine (GCE), Google Kubernetes Engine (GKE)
  • Paradigms

    DevOps, DevSecOps, Agile Software Development, REST, Fuzz Testing, Penetration Testing, API Architecture
  • Platforms

    Amazon Web Services (AWS), Azure, KVM, Ubuntu, Docker, Kubernetes, Windows, Linux, Apache Kafka, Solaris, Android, Oracle, WordPress, Windows Server, Heroku, Ethereum, Blockchain, Kernel
  • Storage

    Ceph, Redis, NoSQL, MySQL, Memcached, Google Cloud, Elasticsearch, Database Performance, PostgreSQL, MongoDB, GlusterFS
  • Industry Expertise

    IT Security, Security
  • Other

    Cloud, Virtualization, WiFi, SANs, Software Defined Storage, Performance, Performance Analysis, Back-end Performance, UEFI, Agile Software Testing, Project Management Professional (PMP), CISSP, Linux Internals, Software Engineering, Architecture, Software Architecture, Big Data, Big Data Architecture, Time Series, Stream Processing, Streaming Data, Machine Learning Automation, Authentication, IoT Protocols, Wireless Networking, IoT Security, Fintech, Cloud Security, LTE, Unified Threat Management (UTM), Intrusion Detection Systems (IDS), Intrusion Prevention Systems (IPS), Security Audits, PXE, SOAP, Windows Internals, Cryptocurrency, OpenZeppelin, Cryptography, ARM, ChibiOS, XMPP, Customer Relationship Management (CRM), Boot, BladeCenter H, Remote Desktop Protocol (RDP), AWS, Information & Communications Technology (ICT), Integrated Circuit Testing, CruiseControl, Prometheus, RTOS, ChibiOS/RT, CTO, Mentorship & Coaching, Leadership, FreeNAS, SaaS, ARIS Cloud

Education

  • Master's Degree (Diplom Ingenieur) in Computer Engineering
    2002 - 2007
    Hamburg University of Technology - Hamburg, Germany

Certifications

  • Certified Information Systems Security Professional (CISSP)
    DECEMBER 2017 - DECEMBER 2020
    (ISC)2
  • Project Management Professional (PMP)®
    AUGUST 2017 - AUGUST 2020
    PMI | Project Management Institute

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