Apriorit

Apriorit is a Ukraine-based software engineering firm founded in 2002 with over 400 experts across 15 development teams. The company specializes in full-cycle development for security-sensitive products—kernel drivers, cloud infrastructure, AI systems, blockchain networks, and custom enterprise software. A 98% client retention rate and 675+ completed projects suggest they've built deep relationships in fintech, healthcare, automotive, telecom, cybersecurity, and energy sectors. The core differentiator is explicit: security is embedded at every SDLC stage, not bolted on afterward. This matters for the buyers they target—CTOs at regulated firms handling sensitive data.

Services and capabilities

Apriorit breaks work into several tracks. System programming covers OS components, kernel and driver development, data processing solutions, and remote access tools—the kind of low-level work that requires C/C++ discipline and understanding of hardware constraints. The firm has shipped Windows audio drivers (with WHQL certification), drone battery management firmware, and distributed networking stacks.

Cloud engineering spans migration, cost optimization, and DevOps automation on AWS, Azure, Google Cloud, and Kubernetes. They've built AWS-based blockchain infrastructure for international banking and handle the full DevOps pipeline.

AI and ML work includes both integration (OpenAI, Gemini, Perplexity APIs) and custom model training. A medical NLP system they built analyzes scientific reports with 92.8% accuracy; another healthcare AI detects and measures follicles at 90% precision with 97% recall.

Cybersecurity offerings range from penetration testing and code audit to secure architecture design and threat modeling. They audit blockchain implementations and integrate zero-trust principles into product design. Compliance work spans GDPR, HIPAA, PCI DSS, ISO 26262, and TISAX.

Web, mobile, and SaaS development round out the menu—frontend (React, Angular), backend (Node.js, .NET, Python), API integration, and UI/UX design. They maintain legacy systems and handle multi-platform feature parity (e.g., keeping Windows and macOS versions in sync).

Reverse engineering is listed as a unique capability: disassembling binaries to restore documentation, audit security, verify compatibility, or troubleshoot without source code access.

Notable work

A Windows audio driver for an AI sound-filtering app: the firm improved performance, added WHQL certification, and redesigned the UI while keeping the macOS version synchronized.

A secrets management desktop application with robust encryption helped a client improve their security score by 30%.

A healthcare CRM for medical transportation: Apriorit rewrote legacy code, added new modules, integrated cloud infrastructure, and ensured compliance and security.

An embedded MVP for drone battery charging and data management—the system charges up to six batteries simultaneously and aggregates flight data.

A SaaS cybersecurity platform: the team added multi-platform support, automated internal processes, and improved UI/UX; the firm's compliance work helped the client attract customers handling sensitive data.

AWS-based blockchain infrastructure for international banking, delivered on strict deadlines.

How they work

Apriorit offers three engagement models: dedicated teams, fixed-price projects, and time-and-materials. Project managers coordinate stakeholder communication and build task pipelines between client and development teams. Initial response happens within 1–2 business days of inquiry; an offer follows based on scope, then a detailed call before contract signature. The firm emphasizes a mature delivery process—granular planning, efficient communication, predictable outcomes—and flexible collaboration that adapts to your workflow.

Their secure SDLC spans five phases. Requirements elicitation includes security risk assessment and compliance analysis upfront. Architecture design applies threat modeling and zero-trust principles. Development uses secure coding guidelines, static analysis, security code review, and third-party component vetting. Testing adds security test strategy, penetration testing, and rigorous QA. Deployment includes infrastructure security assessment and secure configuration.

Team and credentials

The firm employs 400+ engineers organized into 15 development teams. Leadership and founding details are not disclosed in the source. Certifications include ISO 27001, NIST SP 800-53, TISAX, and GDPR compliance; healthcare clients can rely on HIPAA alignment, fintech on PCI DSS. The source lists mastery of C/C++, Golang, Python, Rust, Node.js, .NET, React, and Angular. Specific vendor partnerships (AWS, Azure, Google Cloud, Kubernetes) are mentioned for cloud work. No Clutch, G2, or third-party review scores are cited in the source.