Alec is available for hire
Hire AlecAlec Ten Harmsel
Verified Expert in Engineering
Software Developer
Grand Rapids, MI, United States
Toptal member since March 7, 2019
Bio
Alec began programming at the age of 14 and has loved it ever since. He ran an autonomous drone team in college for a couple of years before graduating to work on a variety of software in banking and construction management.
Portfolio
Revela
Redis, PostgreSQL, React, Ruby on Rails (RoR), Ruby
ControlNET
Qt 5, PyQt 5, Kubernetes, D3.js, PostgreSQL, React, Ruby on Rails (RoR), Ruby...
Goldman Sachs
C, Boost.Asio, Redis, Vert.x, Java, Boost, C++
Experience
- Java - 6 years
- C++ - 5 years
- Python - 4 years
- Ruby - 3 years
- React - 3 years
- Ruby on Rails (RoR) - 3 years
- Spark - 2 years
- Boost - 1 year
Availability
Part-time
Preferred Environment
Vim Text Editor, Linux, Gentoo
The most amazing...
...opportunity was when I discovered and helped fix a serious issue less than two weeks after starting at Goldman Sachs.
Work Experience
Programmer
2019 - PRESENT
Revela
- Developed tools for property owners to view and manage their properties.
- Added cash basis views to various accounting reports.
- Supported property management software built with Ruby on Rails.
Technologies: Redis, PostgreSQL, React, Ruby on Rails (RoR), Ruby
Programmer
2018 - 2019
ControlNET
- Developed Tridium-based software to sync HVAC and lighting schedules with Microsoft Exchange calendars.
- Modeled labor across construction projects to predict future labor needs.
- Ideated and created a web app to track projects, costs, and work orders using Ruby on Rails, React, and D3, deployed to Kubernetes.
- Created a search engine with Spring Boot and Lucene to search job and work order documents. Made a web front end with Spring Boot and a desktop app interface to the search API with PyQt5.
Technologies: Qt 5, PyQt 5, Kubernetes, D3.js, PostgreSQL, React, Ruby on Rails (RoR), Ruby, Java, Node.js
Programmer
2016 - 2018
Goldman Sachs
- Wrote custom monitoring and alerting software using Vert.x to reduce time to detect problems by two orders of magnitude.
- Designed, developed, and supported core trading control software written in C++, Java, Scala, and Q globally.
- Improved DevOps tooling to significantly reduce manual intervention during releases.
- Developed a StatsD proxy server with C++ and Boost.Asio to improve monitoring accuracy.
- Created custom reports as needed for crucial business team members.
Technologies: C, Boost.Asio, Redis, Vert.x, Java, Boost, C++
Hadoop System Administrator
2013 - 2016
University of Michigan
- Installed and managed Hadoop, Spark, and other related tools.
- Wrote jobs to process HPC cluster logs for monitoring.
- Assisted researchers in analyzing large amounts of data using Hadoop and Spark in Java, Scala, and Python.
- Used Ansible to configure base cluster operating system and manage services, including Hadoop and Spark.
- Wrote system administration tools using Python to reduce manual system administration work.
Technologies: Spark, Ansible, Python, Scala, Java, Apache Spark, Hadoop
Experience
Michigan Autonomous Aerial Vehicles
Designed and developed various software throughout my 3.5 years on the team. Developed computer vision algorithms to find, identify, and locate flash drives in 3D space. Developed path planning (A*), networking, and a Qt-based user interface for controlling drones.
Managed the team developing navigation, computer vision, and other high-level algorithms for two years. Co-managed the team for the same two years, leading or assisting in fundraising, outreach, and recruiting.
Managed the team developing navigation, computer vision, and other high-level algorithms for two years. Co-managed the team for the same two years, leading or assisting in fundraising, outreach, and recruiting.
Emergency Flight Planning for an Energy-constrained Multicopter
Was the main author on a paper describing a methodology for planning emergency landing paths for multicopters in urban environments. Using a combination of maps and sensor data, emergency planning can be done constantly in the background to land as quickly as possible in an emergency.
Web-based Coaching App
I developed the back end of a web-based application for coaching esports users using Ruby on Rails. Specifically, I implemented changes for scheduling, payments, in-app currency, user wallets, and reporting for business analysts.
Education
2012 - 2016
Bachelor's Degree in Computer Engineering
University of Michigan - Ann Arbor, MI
Skills
Libraries/APIs
Stripe, React, PyQt 5, D3.js, Node.js
Tools
Vim Text Editor, Ansible, MATLAB, Yardi
Frameworks
Ruby on Rails (RoR), Apache Spark, Boost, Vert.x, Hadoop, Spark, Qt 5
Languages
C++, C, Ruby, Java, Scala, Python, Go
Platforms
Linux, Kubernetes
Storage
PostgreSQL, Redis
Other
Gentoo, Boost.Asio
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring