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John McCall

John McCall

Humanism through technology

Brooklyn, New York, US
+1 (413) 297-2788
English

Background


About

About

Staff reliability and data engineer with 12+ years’ experience building and owning highly available cloud platforms. I lead infrastructure automation, observability, and incident resilience that improves uptime and developer velocity.

Work Experience

Work Experience

  • Staff Site Reliability EngineerHouse Rx

    Mar, 2023 - Oct, 20252 years 6 months

    • Managed geo-distributed multidisciplinary team

    • Owned infrastructure, reliability, and release management for a PHI-regulated product suite, taking Apdex from < 90 to 97

    • Maintained and extended self-hosted LGTM observability stack (Loki, Grafana, Tempo, Mimir)

    • Automated CI/CD and dependency provisioning with Terraform & Actions, cutting deploy time by 89% and 4xing redundancy.

    • Led incident management process redesign, improving MTTR and postmortem quality

  • Senior Database EngineerCollectors

    Sep, 2022 - Mar, 20236 months

    • Supported infrastructure and reliability efforts across cloud-hosted systems

    • Developed full hackathon project upgrading PSA slab QR codes with 4× resiliency to surface damage, including benchmarking suite and performance analysis

  • Senior Database Reliability EngineerFlatiron Health

    May, 2020 - Aug, 20222 years 3 months

    • Co-led AccessAbility ERG to improve accessibility and inclusion across engineering

    • Created and maintained open-source sqlserver Ansible collection (100k+ downloads) to automate and scale client database management

    • Implemented a novel SQL Server cloning approach enabling ephemeral branch deployments of the oncology platform

    • Optimized AWS storage configurations during internal hackathon, saving over $80k annually

  • Data Engineerjet.com / Walmart eCommerce

    Apr, 2019 - May, 20201 year 1 month

  • Application Database AdministratorJetBlue Airways

    Jul, 2017 - Mar, 20191 year 8 months

    • Managed remote contractors

  • Database AdministratorNew Classrooms (non-profit)

    Apr, 2015 - Aug, 20172 years 4 months

  • Database AdministratorArup

    Jul, 2014 - Apr, 20159 months

  • Technology Analyst / DBAJPMorgan Chase

    Jun, 2011 - Jul, 20143 years 1 month

Projects Experience

Projects Experience

  • mentalhealth.day

    Feb, 2023 - Present

    😌 Share this site as your status, out of office email, or on social media when you take a self-care day to normalize and destigmatize mental health (https://mentalhealth.day).

  • lowlydba/sqlserver

    Apr, 2022 - Present

    🥄 A cross-platform Ansible collection using PowerShell to configure and maintain SQL Server. Included in the official Ansible community collection.

Skills

Skills

  • Core SRE & Platform Engineering

    Kubernetes (EKS / AKS)

    Serverless / Containers

    Terraform & Helm

    Ansible & LGTM Stack (Loki, Grafana, Tempo, Mimir)

    CI/CD Automation (GitHub Actions, Jenkins)

    Incident Management & Postmortem Processes

    Monitoring & Observability (DataDog, New Relic, Sentry)

    Cloud Platforms: AWS, Azure, GCP

    Infrastructure Architecture & Resiliency

  • Databases & Data Engineering

    SQL Server (Always On, HA/DR)

    Amazon RDS, PostgreSQL, MySQL, MongoDB

    Query Optimization & Performance Tuning

    Replication, Backup Strategy, and DR Planning

    ETL Design, Data Modeling, dbt

    SQL Development (T-SQL / ANSI SQL)

  • Programming, Automation & Tooling

    Python (automation & data pipelines)

    TypeScript / JavaScript / Node.js

    PowerShell / Bash scripting

    Linux & Windows Administration

    Infrastructure as Code (IaC)

    YAML / JSON configuration

    Git / Version Control

Education

Education

  • Information Technology w/ concentration in Databases & minor in Literature, BS, Rochester Institute of Technology

    Sep, 2008 - May, 2012

Certificates

Certificates