Portfolio
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About
Hi, I'm Leif.
I love working with technology companies to bring products to market. I started as a Mechanical Engineer and then taught myself to code.
I also consult for small-medium businesses, helping them make the right data-driven decisions. My clients are interested in using technology to scale their business, ensuring quality with repeatable processes, and focusing their effort on the highest impact problem. With 9 years of experience in startup operations, a passion for data, and the technical know-how to implement solutions, I can help you bring your business to the next level.
I also love big wall climbing, cycling, reading, and skiing.
Skills
Here's a few of the technologies and methodologies I'm most familiar with:
Languages
Python, JavaScript, C++, HTML/CSS, Git, Bash
Frameworks
Django, React, Flask, MUI, Bootstrap, Wx
Databases
SQL, Postgres, NoSQL, ElasticSearch
Visualization
Tableau, PowerBI
Testing & CI
PyTest, Jest, Jenkins, UnitTest, Docker
Paradigms & APIs
OOP, MVC, TDD, GraphQL, OAuth2.0
Project Management
PMP-trained, Agile, SCRUM
Product Management
Survey Design, A-B Testing, JIRA
Resume
Professional Experience
Backend Engineer
April 2025 - July 2026
CapitalRx - Remote (EST)
Backend Engineer on the Medical Claims Processing team.
- Wrote high-risk member cost share calculation code to handle edge cases for Judi Health's first medical claims customer
- Built modules to manage medical codes and send letters to providers and patients
- Python/Flask backend, serverless infrastructure, react frontend
Full Stack Django Engineer
September 2023 - November 2024
WisdomTree Inc. - Remote (EST)
- Backend engineer on the WisdomTree Prime App, a Stellar Blockchain-backed banking and investment app
- Built system for resolving failed ACH, Card, and Stellar money movement
- Significantly decreased app load time by optimizing queries on several views
- Developed asset accruals payment and settlement backend to calculate payments due to customers holding money market funds
- Integrated transaction with third-party compliance software and Zendesk
- Built ACH Return flows – e.g. what happens when a check bounces
Sr. Software Engineer
June 2022 - September 2023
Connectwise LLC. - Remote
- Full-stack engineer on Connectwise SIEM with a backend focus
- Improved ReactJS app refresh time by 60% by optimizing hot reload of components
- Optimized backend views by optimizing SQL queries
- Reduced CI/CD build time by 75%, improved test suite usability, and set up Jenkins CI/CD server
- Wrote Django app to share security content and built in-app notifications system
- Decoupled microservices which were directly accessing Django db by creating high-performance API
- Automated deploys to ECS and EBS in CI/CD pipeline
- Upgraded major Django and Python versions of legacy server
- Implemented first module of the ConnectWise SIEM port to the new Asio platform (React)
Strategy and Data Science Consultant
July 2020 - June 2022
Remote West Coast
- Built a custom ERP in Python/Django unifying payroll, CRM, time tracking, telephony, and accounting data into real-time operational reporting
- Cut administrative costs by over 35% and reduced accounting and dispatch errors to near zero by automating manual workflows; segmentation analysis improved sales conversion by 50%
Director of Technical Operations
June 2017 - May 2021
HaptX Inc., San Luis Obispo, CA
- Grew a cross-functional engineering team from 1 to 40 people and established the engineering culture, hiring process, and project management program, document control system, IT, and HR
- Coordinated development of a complex integrated hardware/software system spanning pneumatics, embedded systems, wearables, high-speed control systems, game engine integrations, and a C++ API
- Set engineering development goals and product requirements with the executive team and delivered the company's first revenue-generating hardware product (HaptX Gloves DK2) on budget and on schedule, while remaining hands-on as a design engineer
- Managed funded customer development programs including the HaptX/Shadow Robot Tactile Telerobot, a Nissan automotive UX simulation, and the TC3Sim medical training integration below
- Established government-contracting-compliant IT and security infrastructure from scratch, including MSP selection and cloud and data systems; built a 7-person support organization with SOPs and a ticketing system
Manager of Engineering
2015 - 2017
HaptX Inc., San Luis Obispo, CA
- Opened the company's engineering office as its first employee and recruited a 7-person team
- Planned and executed early hardware programs, including a powered leg exoskeleton prototype, while contributing directly as a design engineer — modeling, designing, and fabricating prototypes
Mechanical Design Engineer
2013 - 2015
HaptX Inc., San Luis Obispo, CA
- Designed, built, and tested research prototypes
- Assisted writing technical specification for early patents
- Created CAD models and design visualizations
Education
BS Mechanical Engineering
2009 - 2013
Santa Clara University, CA
Services
Get help selecting and implementing the right software for your business, building integrations between existing systems, or developing a custom solution that precisely meets your needs. I'll work with you and help you find the right approach for your needs, timeline, and budget.
Develop
Build out a custom enterprise resource management system that meets your business needs.
Integrate
Connect existing applications and data sources to minimize errors and costs.
Analyze
Model your business and customers to predict growth and describe your customers with grouping analysis.
Visualize
Create actionable dashboards and real-time charts of KPIs.
Secure
Protect your customer and employee data with a security audit, training, and policy refresh.
Scale Up
Expand your business, enter new verticals, or launch a new product.