Thoughtworks contributes to and uses open source software wherever possible.
Software excellence
We are a bit fanatical when it comes to delivering software. We’re serious about our craft and are always striving to improve the way we do things. And we like to push the industry as a whole to improve. This is a central tenet of our software excellence mission.
We believe that software quality is driven by open communication, review and collaboration. That’s why we’re such vehement supporters of open source and have been throughout our history. In 2020, Thoughtworks was rated in the top 25 contributors to GitHub by the Open Source Contributor Index.
Open source enables us to build superior solutions to those based on proprietary software in terms of cost, freedom, privacy, security, quality and community. Building open source allows us to pay it forward, share new ways of working, and learn from the wider community.
What we are building
Our technologists bring successful, field-tested techniques and ideas from around the globe to open source solutions. Here are some highlights of our work across many domains including machine learning, security and privacy, global health, continuous delivery, monitoring, testing, and software development tools.
Continuous Delivery and Monitoring
Machine Learning
CD4ML — Scenarios is evolving to be a great starter kit for bringing machine learning projects into production; the project contains a sample application and machine learning code used for the Continuous Delivery for Machine Learning (CD4ML) and Continuous Intelligence workshop.
EmoPy is a deep neural net toolkit for facial expression analysis. It serves as an accessible educational tool and practical example of how to approach the problem of emotion classification via facial expression recognition (FER). EmoPy has generated interest with students, academics, robotic scientists and other tech consulting firms.

Isula is a Java library for the implementation of artificial intelligence algorithms based on the ant colony optimization paradigm. It contains the common elements present in the meta-heuristic to allow algorithm designers the reutilization of common behaviors. With Isula, solving optimization problems with Ant Colony can be done in a few lines of code.
TWallet is the next-generation digital wallet. It supports general payment, digital currency transfer and duplex-offline payment. With an emphasis on personal privacy issues, it introduces technologies such as decentralized identity and verifiable claims.
Security and Privacy
Social Impact
Bahamas Marine Mammal Research Organization (BMMRO) is a non-profit scientific research organization led by scientists finding marine mammals in and around Abaco Island, Bahamas, understanding their primary areas of habitation and using what they learn to make a difference. As a part of the conservation of biodiversity efforts within the social impact umbrella, a team of Thoughtworkers in the UK are developing an open-source web application. The vision is to build a data centric tool to help researchers promote conservation of marine mammals.
Health

Bahmni, an easy-to-use electronic medical record and hospital management system, combines and enhances multiple open-source products into a single solution (including integration with DHIS tracker which was built in collaboration with PSI Zimbabwe). The recent Bahmni COVID-19 Program adds COVID-19-specific features.

Project EKA is an endeavour to create reference solutions for exchanging health information with patients’ consent in Indian Healthcare context. The architecture and solutions are largely inspired by the proposed National Health Stack (NHS). The team wants to improve patient care through informed decision making, clinical history assessments, treatment management and ensuring continuity of care through this initiative.
EpiRust is an open-source fast agent-based simulation framework to model epidemics in large cities. Using this framework, researchers can model diseases like smallpox, H1N1, and now COVID-19. Researchers can use EpiRust to simulate a disease model for a city with a population of up to a few million people using commodity hardware like laptops and desktops.
OpenMRS is a platform used to create a customized EMR system in response to actual needs on the ground. It serves an essential role in a country’s health information system. Data from OpenMRS is increasingly used to inform the public health decisions needed to achieve the UN Sustainable Development Goals, measure progress towards UNAIDS’ 95-95-95 targets for HIV epidemic control and achieve universal health coverage.

HardPosit is a library of hardware units that implement Posit arithmetic using Chisel, a Scala embedded hardware description language. This project is maintained by a relatively small team at E4R (Engineering for Research). It deals with a different programming paradigm all together (hardware description/digital design) and introduces a less familiar technology to the community, ultimately opening doors for new endeavors.