Safety-Critical Software Development
High-reliability systems where failure is not an option — designed, verified and delivered by mathematicians and systems engineers.
What makes software safety-critical
Safety-critical software operates in environments where a defect can cause injury, financial loss, data corruption or system failure. The engineering discipline is fundamentally different from standard software development:
- Correctness requirements — behaviour must be provably correct, not just empirically tested
- Fault tolerance — systems must degrade gracefully and recover predictably under failure conditions
- Determinism — timing, memory usage and execution paths must be bounded and predictable
- Traceability — every requirement must be traceable through design to code to test
- Security by design — attack surfaces must be analysed and minimised from day zero, not patched later
Our approach to safety-critical projects
We treat safety-critical engineering as a first-class discipline, not an afterthought:
Architecture design with safety in mind
We begin every engagement with a thorough review of your system's architecture, identifying failure modes, isolation boundaries and risk surface before a line of code is written.
Static analysis throughout development
Our Visão static analysis engine is applied continuously during development — not just at release gates. We catch memory safety issues, undefined behaviour, dependency violations and security anti-patterns at compile time.
Formal verification where it counts
For the most critical subsystems, we apply formal verification techniques to prove correctness properties that testing alone cannot establish. We have built custom formal analysis tooling for client projects.
Comprehensive testing strategy
Using our TS Factory distributed testing framework, we design and execute large-scale test campaigns across real hardware — unit, integration, system and hardware-in-the-loop tests running in parallel.
Security hardening
Secure boot, cryptographic integrity verification, privilege separation, input validation and supply chain isolation are built into our process from the start.
Domains and platforms
We have delivered safety-critical and high-reliability software across multiple domains:
- Industrial control systems — firmware for safety-classified embedded controllers with strict timing requirements
- Networking infrastructure — router firmware where security vulnerabilities affect thousands of end users
- Blockchain and verification systems — correctness-critical logic backed by formal analysis and custom static analysis tooling
- Wearable and medical-adjacent devices — firmware for devices where firmware bugs directly impact the end user
- Compiler and language toolchains — including a purpose-built safe programming language designed for a client's safety-critical environment
Why mathematical background matters
Most software engineering teams approach safety-critical systems through process and checklists. We approach them through mathematics. Our founders have backgrounds in program analysis, formal methods and systems research. This means we do not just follow best practices — we understand why those practices exist and where they are insufficient. We have built our own static analyser, our own testing framework and custom formal verification tooling — because existing tools did not meet the requirements of the systems we were working on. That depth of expertise is what we bring to your project. See the tools we built →
How we engage
Safety-critical projects require trust, transparency and rigour. Our engagement model is designed for exactly that:
- System analysis — we review your architecture, constraints and risk surface before committing to a scope
- Codebase assessment — deep technical evaluation of existing code, dependencies and integration points
- Integration design — definition of analysis pipelines, testing strategy and deployment model
- Controlled implementation — phased execution with measurable validation checkpoints
- Ongoing maintenance — continuous visibility and long-term system integrity support
Related pages
Talk to our team
Describe your system and its safety requirements — we will propose an approach grounded in both engineering rigour and practical delivery.
We typically respond within 1–2 business days.