About Devsort
Clinical-grade data science and software engineering, from Islamabad.
We are a Pakistan-based team that builds technical systems under constraints most software companies never meet: regulatory certification, legacy codebases in production clinical environments and zero tolerance for output deviation.
We started by doing the hardest kind of work first.
Devsort's defining engagement started with a system that already existed: six certified algorithms for monitoring bradykinesia, dyskinesia and tremor in Parkinson's disease patients, cleared by the FDA under 510(k) certification, running in production and generating clinical data for real patients. The problem was the code underneath it.
The implementations were spread across legacy codebases in C/C++, Julia, TCL and Java, written by different teams over different years, with minimal documentation and no unified architecture. The FDA certification was tied to the existing implementation. Any change, even a refactoring that produced identical outputs, had to be formally assessed before deployment. The algorithms were effectively frozen.
Over 2.5 years, working with PKG Health (now Empatica), we refactored all six algorithms into production-quality Python with full documentation and a validation framework that ran both the original and new implementations against every clinical dataset. Every output was compared. Every deviation was documented and assessed against the clinical tolerance. By the end, the refactored suite ran on five device platforms (Apple Watch, Samsung Galaxy Watch, Sony SmartWatch, Empatica E4 and ActiGraph), with a preprocessing pipeline that normalised hardware differences transparently.
That engagement is how Devsort thinks about technical work. We treat constraints as the specification. Doing the work correctly means understanding exactly what “correct” requires, documenting the evidence, and producing output that holds under scrutiny.
What we believe.
Offshore talent is a structural advantage.
A team in Islamabad that has validated FDA-compliant algorithms does the same work as a team in San Francisco, at a different price point. The question is whether the quality is real. The PKG Health engagement answers that question. Six algorithms. Five device platforms. Three regulatory standards. Two-and-a-half years. Real patient data. If you are weighing up the local market, we keep a list of software houses in Islamabad.
Technical credibility comes from taking the hard projects.
Our algorithm work for PKG was not the most commercially obvious project to take on. It was slow, high-stakes, and technically demanding in ways that are difficult to communicate in a sales deck. We took it and did it properly for 2.5 years, and that is where the credential comes from. We are not interested in the kind of project where acceptable output is easy. We are interested in the kind where it is not.
Documentation is part of the deliverable.
The PKG codebase was undocumented when we received it. Nobody on the client team fully understood all of it. The refactored output was fully documented, in language plain enough for a clinical reviewer to follow. We do not add documentation at the end if time permits. It is part of the job. Code that cannot be reviewed is code that cannot be trusted. We said as much when we started writing here.
The team.
The core team comprises data scientists, SQA engineers, embedded firmware developers, and web and mobile engineers. Those disciplines rarely sit in the same company because their output requirements are so different. At Devsort they do, because the projects we take on tend to cross those boundaries. A wearable algorithm system is simultaneously a signal processing problem, an embedded deployment problem, and a regulatory documentation problem.
We also have a representative in Melbourne, Australia, which helps with AU-based clients across time zones. Australian clients have found the overlap practical: PKT and AEST have workable shared hours, and a local point of contact for first conversations makes it easier to start working with a Pakistan-based team.
Where we are.
Islamabad, Pakistan
Office 4, Level 2, Plaza 14, Urban Boulevard
Sector A, Bahria Enclave, Islamabad, Pakistan 44000
+92 51 272 1257 (landline)
+92 327 650 4506 (WhatsApp)
If you are evaluating Devsort for a project, the best next step is a conversation.
Tell us what you are building and the constraints you are working under. We will give you an honest read on whether we are the right fit, and what the engagement would look like.