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I am a versatile and innovative data analyst, engineer and leader with over 10 years of experience in business operations and strategy across Go To Market and Product domains such as Sales, Marketing, Finance, Operations and Revenue Strategy. I excel at turning large datasets into actionable insights that drive data-driven decisions and cross-functional collaboration. My work spans building centralized data portals, guiding stakeholder engagements, and leading system migrations. I’m passionate about delivering meaningful insights that empower teams to achieve objectives and improve decision making.…I am a versatile and innovative data analyst, engineer and leader with over 10 years of experience in business operations and strategy across Go To Market and Product domains such as Sales, Marketing, Finance, Operations and Revenue Strategy. I excel at turning large datasets into actionable insights that drive data-driven decisions and cross-functional collaboration. My work spans building centralized data portals, guiding stakeholder engagements, and leading system migrations. I’m passionate about delivering meaningful insights that empower teams to achieve objectives and improve decision making.

John Antonio Lechstaff

AI Engineer, AI Developer, Data Scientist, +5

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I am a versatile and innovative data analyst, engineer and leader with over 10 years of experience in business operations and strategy across Go To Market and Product domains such as Sales, Marketing, Finance, Operations and Revenue Strategy. I excel at turning large datasets into actionable insights that drive data-driven decisions and cross-functional collaboration. My work spans building centralized data portals, guiding stakeholder engagements, and leading system migrations. I’m passionate about delivering meaningful insights that empower teams to achieve objectives and improve decision making.…I am a versatile and innovative data analyst, engineer and leader with over 10 years of experience in business operations and strategy across Go To Market and Product domains such as Sales, Marketing, Finance, Operations and Revenue Strategy. I excel at turning large datasets into actionable insights that drive data-driven decisions and cross-functional collaboration. My work spans building centralized data portals, guiding stakeholder engagements, and leading system migrations. I’m passionate about delivering meaningful insights that empower teams to achieve objectives and improve decision making.

Available to hire

I am a versatile and innovative data analyst, engineer and leader with over 10 years of experience in business operations and strategy across Go To Market and Product domains such as Sales, Marketing, Finance, Operations and Revenue Strategy. I excel at turning large datasets into actionable insights that drive data-driven decisions and cross-functional collaboration.

My work spans building centralized data portals, guiding stakeholder engagements, and leading system migrations. I’m passionate about delivering meaningful insights that empower teams to achieve objectives and improve decision making.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Applied Scientist – AI Developer at Microsoft

May 1, 2025 - Present

Designed and delivered scalable distributed microservices architecture and REST APIs using C#/.NET on Azure for end-to-end production-grade systems; implemented security-first RiskEngine platform with fraud signal validation, anomaly scoring, and secrets/identity hygiene across Azure-hosted services, improving enterprise risk detection AUC-ROC by 64% while enforcing compliance-aware architecture with SQL Server, Azure ML, and Cosmos DB. Prototyped and won hackathon for AI-assisted developer workflows using GitHub Copilot and MCP integrations, increasing engineering productivity by 30%. Built KQL-driven telemetry, diagnostics, and fraud monitoring dashboards; delivered structured LLM evaluation and experimentation pipelines with offline test suites, A/B experiments, and fine-tuning workflows; scaled LLM-driven search and scraping infrastructure using agent-based architectures, increasing search relevance and scraping throughput at global scale.

Data Scientist at Everly HSE Corp via TweakCoders LLC

May 1, 2024 - May 1, 2025

Designed and deployed ML model validation frameworks and Python/SQL data pipelines on AWS and Azure, improving real-time decision-making across 10+ production projects while enforcing reproducible, test-driven model lifecycle practices. Built deep learning inference pipelines (PyTorch, TensorFlow) integrated with NVIDIA Triton and ONNX, reducing processing time for high-volume simulations. Developed NLP and Generative AI systems for plant safety analysis, reducing incidents and improving compliance through iterative delivery and stakeholder collaboration.

ML Software Engineer at Bear Brown & Company

March 1, 2024 - May 1, 2025

Architected and shipped a web-based Data Asset Management Platform (React, Node.js, Vue.js) end-to-end, achieving 40% reduction in development time and improved reliability. Integrated and optimized deployment pipelines on AWS SaaS infrastructure; led standards for reusable automation components. Directed development of RAG-powered chatbot and BERT/GPT-based NLP models, enhancing product clarity and user experience.

Software Engineer at BlackPearl Technology

August 1, 2023 - March 1, 2024

Architected backend and frontend systems with Qt/C++, analyzed system logs to reduce crashes by 60% and improve performance on ARM-based processors. Built secure APIs with Django REST Framework and token-based authentication. Enhanced GPU performance by 20% via advanced communication protocols; streamlined development workflows with automation, improving productivity and reducing release errors. Conducted regular code reviews to improve code quality.

Data Scientist at World Resources Institute - WRI.org

June 1, 2022 - November 1, 2022

Improved GPU-driven data processing for large-scale satellite imagery with Earth Engine. Analyzed NAIP aerial imagery to identify optimal school bus depot locations with 84% accuracy and processed over 10,000 coordinates. Developed ML models to predict depot locations, achieving 90% accuracy and presenting findings to stakeholders for transportation-cost reductions.

Senior Business Data Analyst at Auth0 by Okta

January 1, 2023 - Present

Led and managed initiatives as a trusted advisor to GTM and Product/Engineering; spearheaded the first stakeholder engagement model with intake process, backlog prioritization and final asset delivery, earning multiple executive recognition awards. Directed UX optimization with a unified data portal providing centralized access to Tableau/Looker dashboards, data governance documentation, and over 80% asset adoption. Directed the CEO Dashboard initiative, delivering executive-level metrics used in weekly leadership discussions with 100% adoption by the CEO and direct reports. Managed complex data systems migrations, including Redshift to Snowflake and the unification of Salesforce, Marketo and Tableau Server, covering requirements, reverse engineering SQL/Python/R logic, data modeling, dashboard development, UAT and change management.

Senior Business Data Analyst at Auth0 by Okta

January 1, 2021 - January 1, 2023

Spearheaded the first stakeholder engagement model with GTM and Product/Engineering, serving as the primary contact for intake, backlog prioritization and final asset delivery; contributed to governance and data dictionary documentation; earned numerous internal recognition awards for collaboration and business acumen.