# PaxDynamics

> PaxDynamics is an applied research and engineering consultancy based in Bucharest, Romania, led by Andrei “Pax” Popa. We help teams and individuals build software, adopt AI, improve security and compliance readiness, and develop technical skills.

Founded and led by Andrei “Pax” Popa. The founder’s previous roles describe his experience; they are not a list of company clients.

## Company and services

- [Company overview](https://paxdynamics.com/): Applied research, prototyping, services, founder experience, and contact.

- [Software R&D & Prototyping](https://paxdynamics.com/services/software-rd-prototyping): Test a technical idea before committing to a full build. Receive a prototype, findings, and a clear next step. Scope: Feasibility studies; Proofs of concept and prototypes; Comparative experiments. Available in English, Romanian, and Simplified Chinese.

- [Software & Product Development](https://paxdynamics.com/services/software-architecture): Build your first product, develop web, mobile, or desktop applications, or improve an existing codebase. Prepare an agreed release for launch. Scope: MVP & application development; Refactoring & modernisation; Architecture, APIs & launch readiness. Available in English, Romanian, and Simplified Chinese.

  - [MVP Development](https://paxdynamics.com/services/software-architecture#mvp-development): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [Codebase Refactoring & Modernisation](https://paxdynamics.com/services/software-architecture#codebase-refactoring): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [Web App Development](https://paxdynamics.com/services/software-architecture#web-app-development): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [Mobile App Development](https://paxdynamics.com/services/software-architecture#mobile-app-development): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [Desktop App Development](https://paxdynamics.com/services/software-architecture#desktop-app-development): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [APIs & System Integration](https://paxdynamics.com/services/software-architecture#api-system-integration): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

  - [Production Readiness & Launch Support](https://paxdynamics.com/services/software-architecture#production-readiness-launch): An offer within Software & Product Development; scope, deliverables, and acceptance checks are defined on the service page.

- [Hardware & Embedded Systems](https://paxdynamics.com/services/hardware-embedded-systems): Build a device prototype, adapt its firmware, and connect it to an application. Test the result against agreed requirements. Scope: Hardware prototypes & custom PCBs; Custom firmware; Device & software integration. Available in English, Romanian, and Simplified Chinese.

- [AI Adoption & Engineering](https://paxdynamics.com/services/ai-product-engineering): Adopt AI in your business, build specialized AI systems and agents, and improve quality, control, and operating costs. Scope: Local, private & governed AI; Specialized models, agents & harnesses; Evaluation, quality & cost optimization. Available in English, Romanian, and Simplified Chinese.

- [Data Platforms & Analytics](https://paxdynamics.com/services/data-platforms): Turn source data into reliable processing, analytical APIs, and interfaces people can use. Keep the source and method connected to each result. Scope: Ingestion, ETL, and data quality; Analytical APIs and workspaces; Processing, monitoring, and recovery. Available in English, Romanian, and Simplified Chinese.

- [Blockchain & Smart Contract Engineering](https://paxdynamics.com/services/blockchain-smart-contract-development): Build smart contracts, wallets, and blockchain integrations with defined rules, tests, and an operating plan. Scope: Smart contracts and business rules; Wallets, APIs, and chain data; Contract tests and release controls. Available in English, Romanian, and Simplified Chinese.

- [Confidential & Privacy-Preserving Computing](https://paxdynamics.com/services/confidential-privacy-computing): Evaluate TEEs, zero-knowledge proofs, and FHE for sensitive workloads. Receive a tested prototype, measurements, and clear trust assumptions. Scope: Trusted execution and attestation; Zero-knowledge proofs and zk-SNARKs; FHE feasibility and benchmarks. Available in English, Romanian, and Simplified Chinese.

- [Project Setup & Software Factories](https://paxdynamics.com/services/engineering-project-kickstart): Set up a software project or a repeatable delivery process for your team. Connect the repository, infrastructure, checks, planning, and release workflow. Scope: Project kickstarts and monorepos; Code standards, tests, and CI/CD; Team tools and AI development workflows. Available in English, Romanian, and Simplified Chinese.

- [Managed Services & Hosting](https://paxdynamics.com/services/managed-services-hosting): Host, maintain, and improve your websites and applications. Agree the infrastructure, website updates, and ongoing support your business needs. Scope: Hosting, domains, and infrastructure; Maintenance, monitoring, and recovery; Website administration and technical SEO. Available in English, Romanian, and Simplified Chinese.

- [Security Testing & Investigations](https://paxdynamics.com/services/security-research): Find weaknesses in software and AI systems, investigate suspicious activity, and understand relevant threats. Receive supported findings and practical next steps. Scope: Application, API & AI security testing; Vulnerability research & reverse engineering; Digital forensics & threat intelligence; Smart contract security reviews & audits. Available in English, Romanian, and Simplified Chinese.

- [Compliance Engineering & Audit Readiness](https://paxdynamics.com/services/security-compliance-readiness): Prepare for customer and audit reviews, including EU AI Act readiness. Map requirements to controls, implement agreed changes, and organize evidence with clear ownership. Scope: Requirements mapping and EU AI Act readiness; GRC tooling and evidence; Control implementation and review support. Available in English, Romanian, and Simplified Chinese.

- [EU AI Act Readiness & Engineering](https://paxdynamics.com/services/eu-ai-act-readiness): Review your AI systems, implement agreed controls, and prepare EU AI Act evidence with your legal and compliance owners. Scope: AI inventory and gap assessment; Technical controls and testing; Documentation and team training. Available in English, Romanian, and Simplified Chinese.

- [Fractional CTO & Technical Advisory](https://paxdynamics.com/services/cto-for-hire): Work directly with Andrei on technical direction and engineering delivery. Define the responsibility, decisions, and time commitment your team needs. Scope: Technical strategy and roadmaps; Hiring and supplier reviews; Delivery oversight and team leadership. Available in English, Romanian, and Simplified Chinese.

- [Technical Mentoring & Team Training](https://paxdynamics.com/services/technical-mentoring-team-training): Develop technical skills and better working practices through individual mentoring and practical team workshops. Scope: Engineering and leadership mentoring; AI training for teams; Practical reviews and exercises. Available in English, Romanian, and Simplified Chinese.

- [All services](https://paxdynamics.com/services): Explore the full service catalogue.

- [Contact](https://paxdynamics.com/contact): Scope a consultation, mentoring, team training, research, implementation, security, compliance, or leadership engagement.

## Industries

- [Industries](https://paxdynamics.com/industries): Industry-specific software, AI, data, and automation applications.

- [Software & SaaS](https://paxdynamics.com/industries/software-saas): Add AI features, connect product data, and prepare your software for enterprise customers.

- [WealthTech & Financial Software](https://paxdynamics.com/industries/wealthtech-financial-software): Connect financial documents and data to research, reporting, and adviser workflows with clear review steps.

- [Legal & Law Firms](https://paxdynamics.com/industries/legal): Improve document intake, search approved sources, and connect legal workflows to your existing systems.

- [Government & Public Administration](https://paxdynamics.com/industries/public-administration): Connect departmental data, route documents for staff review, and improve public-service workflows.

- [Research & Innovation](https://paxdynamics.com/industries/research-innovation): Build research software, connect datasets, and keep sources, methods, and results linked through each experiment.

- [Education & Training](https://paxdynamics.com/industries/education-training): Build learning tools, connect course systems, and help staff use AI with approved material and clear learning goals.

- [Digital Assets & Web3](https://paxdynamics.com/industries/digital-assets): Build contracts, wallets, and blockchain integrations with clear business rules, security review, and operational ownership.

Industry pages describe proposed services and distinguish the founder's professional experience from company clients.

## Use cases

- [Use cases](https://paxdynamics.com/use-cases): Defined software, AI, and data workflows with scope, review steps, and deliverables.

- [Software delivery & security health checks](https://paxdynamics.com/use-cases/software-delivery-security-health-checks): Review one application’s delivery process, dependencies, and agreed security checks. Receive verified findings, clear priorities, and scheduled follow-up.

- [AI quality & cost monitoring](https://paxdynamics.com/use-cases/ai-quality-cost-monitoring): Evaluate one AI workflow against representative tasks. Compare results over time and review failures, response time, and cost per successful task.

- [Customer security reviews & audit evidence](https://paxdynamics.com/use-cases/customer-security-review-readiness): Prepare for a customer security review, then maintain the agreed control records, evidence, and open actions as your systems change.

- [Document processing & review](https://paxdynamics.com/use-cases/document-workflow-automation): Extract information from approved documents, check it, and send reviewed results to your existing systems.

- [Token distribution & vesting](https://paxdynamics.com/use-cases/token-distribution-vesting): Define token allocations and release schedules, test the contract rules, and connect claims to a wallet and reporting workflow.

- [Confidential AI & document processing](https://paxdynamics.com/use-cases/confidential-ai-document-processing): Assess a protected environment for sensitive document processing, with attestation, controlled secret release, and defined output access.

- [Private eligibility & credential verification](https://paxdynamics.com/use-cases/private-eligibility-verification): Verify a defined eligibility condition from authenticated evidence while limiting disclosure of the underlying personal record.

Use cases are illustrative workflows. They do not describe completed customer projects.

Blockchain services cover contracts, wallets, integration, and defined security reviews. Private computing covers TEE and attestation engineering, ZK proof integration, and FHE feasibility. Trust assumptions, scope, measurements, and limitations are agreed for each engagement.

## Selected work

- [Work](https://paxdynamics.com/work): Selected projects, founder contributions, and current status.

- [Research](https://paxdynamics.com/research): Original investigations and acknowledged research contributions.

- [FourthSpace](https://paxdynamics.com/work/fourthspace): Founder experience; platform in development.

- [CrazyPax engineering](https://paxdynamics.com/work/crazypax): PaxDynamics initiative in private beta.

- [Selected work](https://paxdynamics.com/#selected-work): Published PHP research, an acknowledged Ghostline engineering contribution, CrazyPax private beta, and FourthSpace platform engineering.

- [CrazyPax](https://crazypax.sh/): A PaxDynamics initiative for authorized security investigations. Private beta; public demonstrations use simulated output.

- [PHP after the patch](https://paxdynamics.com/blog/php-research-series): Source and patch analysis, controlled lab reproductions, application reachability, prior art, and result limits.

- [Ghostline](https://arxiv.org/html/2610.18764v1): Wi-Fi motion-tracking prototype. The preprint acknowledges Andrei Pax Popa for board validation and diagnostics and the React diagnostics app.

## Founder and writing

- [Andrei “Pax” Popa](https://paxdynamics.com/pax): Founder profile, projects, and talks.

- [Professional experience](https://resume.paxdynamics.com/): The founder’s detailed career history.

- [Engineering articles](https://paxdynamics.com/blog): Writing by the founder.

## Contact

- [Discuss a project](mailto:pax@paxdynamics.com): Send the goal, current system, and constraints.