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Christopher – Python, Typescript, OAuth, experts in Lemon.io

Christopher

From United States (UTC-4)

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Tech lead
Full-stack Web DeveloperSenior
18 years of commercial experience
AI
Biotech
Business intelligence
Data analytics
Fintech
Govtech
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Christopher – Python, Typescript, OAuth

Christopher is an accomplished Data Architect, Senior Full-Stack Developer, and Tech Leader with nearly 20 years of engineering experience, specializing in fintech and AI-driven solutions. Throughout his career, he has successfully built software products from the ground up, raised funds, and turned around struggling teams, showcasing his ability to drive both technical and strategic success. Christopher thrives in fast-paced environments, having led diverse teams ranging from startups to large, established organizations. He brings hands-on experience in Python and TypeScript, along with a deep understanding of AI and machine learning applications. His leadership skills have been instrumental in transforming technology from a broken system into a powerful competitive advantage for multiple startups.

Main technologies
Python
5 years
Typescript
8 years
Additional skills
OAuth
React
Flask
PostgreSQL
.NET
AWS
Docker
Vector Databases
Playwright
OpenAI API
Terraform
Kubernetes
Django
Azure DevOps
Microsoft Azure
MySQL
Amazon S3
CI/CD
C#
Swift
MongoDB
Data Warehouse
Web Sockets
Snowflake
Ready to start
4-5 weeks' notice
Direct hire
Potentially possible
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Experience Highlights

Lead Researcher and Author
Nov 2024 - Ongoing5 months
Project Overview

This project explores how to make agencies’ statistical data products more readily ingestible by AI technologies. It will produce an AI readiness assessment as a shared resource for any agency looking to test the machine understandability of its public data products and an AI readiness prototype tool to transform public data products into machine-understandable, AI-ready data.

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Responsibilities:
  • Developed a scorecard and rubric to evaluate AI readiness;
  • Authored reports assessing government data for AI readiness;
  • Presented findings and recommendations to high-ranking government officials;
  • Initiated the development of a tool to automate the evaluation of datasets for AI readiness;
  • Began work on a software solution to transform government datasets for improved AI compatibility.
Project Tech stack:
Python
BeautifulSoup
OpenAI API
Playwright
Docker
Docker Compose
Vector Databases
Architecture & Development Consultant
Jan 2023 - Ongoing2 years 3 months
Project Overview

A platform was developed to support the secure upload, storage, discovery, and analysis of experimental data generated in wet lab environments. The system was designed with a strong focus on maintaining data confidentiality and ensuring a verifiable chain-of-custody, which is critical for supporting regulatory approval processes such as those required by the FDA.

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Responsibilities:
  • Designed the system architecture for a lab-wide data management platform used to centralize and unify access to experimental data;
  • Eliminated data silos by enabling full data discoverability and searchability within a single system;
  • Implemented a Chinese Wall model to protect confidential partner data, allowing secure sample processing without revealing sensitive drug development outcomes;
  • Enabled data segregation within single lab instruments, significantly reducing equipment costs and turnaround times;
  • Reduced the cost and complexity of FDA audits through improved data accessibility and traceability;
  • Preserved negative experimental results, typically discarded, to support future machine learning model training.
Project Tech stack:
.NET Core
PostgreSQL
.NET
AWS
C#
Development Consultant
Jul 2017 - Ongoing7 years 9 months
Project Overview

Worked on a range of consulting, engineering, and data architecture initiatives, delivering tailored technical solutions across diverse industries. Projects included designing scalable systems, implementing robust data pipelines, and providing strategic guidance to improve data infrastructure and software performance.

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Responsibilities:
  • Successfully turned around struggling teams, projects, and companies by identifying key issues and implementing effective solutions;
  • Quickly ramped up on new domains, architected systems, and delivered high-quality projects under tight timelines;
  • Implemented CI/CD and automated testing at a company that struggled with this for years;
  • Built a proprietary system to search through billions of records to recover lost assets from bankruptcy estates.
Project Tech stack:
Microsoft SQL Server
MySQL
Transact-SQL (T-SQL)
Azure Functions
Microsoft Azure
Azure DevOps
Algorithms and Data Structures
C#
MongoDB
Snowflake
TeamCity
Web Sockets
Swift
Redshift
Data Warehouse
Lead DevOps Engineer
Jun 2024 - Nov 20245 months
Project Overview

A private equity platform built on a quasi-crowdsourced model, designed to broaden access to investment opportunities beyond traditional PE structures. While still requiring accredited investor status, the model enables a wider pool of participants, offering greater flexibility and reach compared to conventional funds. The platform supports streamlined capital deployment and investor management across multiple deals.

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Responsibilities:
  • Built CI/CD pipeline and infrastructure;
  • Used Kubernetes and Terraform to set up a system that could auto-scale to handle tens of thousands of users per hour with a minimal budget;
  • Performed load testing and discovered bottlenecks;
  • Optimized various aspects of the application (frontend, database, application server) to handle the required load, multiple order-of-magnitude performance improvements;
  • Implemented zero-downtime deployments to ensure uninterrupted service availability during release cycles;
  • Created a system that allows for an arbitrary number of fully valid integration environments at negligible additional hosting cost.
Project Tech stack:
Python
Django
PostgreSQL
AWS
GitHub Actions
Terraform
Kubernetes
Nginx
Docker
Docker Compose
Amazon Cognito
Amazon EC2
Amazon RDS
Amazon S3
Amazon SNS
CI
CD
Development Consultant
Aug 2019 - Oct 20212 years 2 months
Project Overview

A platform designed for private equity and venture capital professionals to streamline the collection of financial reports from portfolio companies. It enabled users to view, analyze, and generate consolidated reports, improving visibility and decision-making across the investment portfolio.

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Responsibilities:
  • Recommended and implemented strategies that significantly increased project velocity, contributing to a successful exit;
  • Reworked business and software development processes to enhance efficiency and productivity;
  • Recruited a new CTO to strengthen the leadership team;
  • Implemented best practices that facilitated passing SOC and security audits;
  • Personally developed an Excel plugin to enhance data interaction and integration;
  • Built a public-facing API to expand external access to services;
  • Integrated Single Sign-On (SSO) with various providers and technologies to improve user authentication and security.
Project Tech stack:
Python
React
PostgreSQL
OAuth
Typescript
Flask
AWS

Education

2007
Computer Science
BS and MS

Languages

English
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