Andrei Popa

Jazz.tools is an open-source TypeScript toolkit for building apps with distributed state, making local-first applications mainstream. Jazz simplifies 90% of traditional app stack while providing local-first storage, cross-device sync, real-time multiplayer, and end-to-end encryption.

Highlights:

• Enhanced core library functionality and performance across distributed state management, improving reliability and developer experience for the open-source community.
• Developed create-jazz-app CLI tool for streamlined project scaffolding across environments, libraries, and auth methods.
• Implemented Jazz framework bindings for VueJS and React Native + Expo, expanding platform compatibility and ecosystem adoption.
• Built Metamask authentication system enabling Web3 wallet-based onboarding and decentralized identity management.
• Designed multiple storage adapter architectures supporting various persistence backends for flexible deployment scenarios.
• Delivered critical improvements and bug fixes across monorepo, maintaining code quality and stability.
• Created official example apps and starter templates for multiple platforms, providing production-ready reference implementations.
• Architected a production-ready Linear clone demonstrating Jazz's real-time collaborative capabilities and complex state patterns.
• Implemented agentic AI workflows for automated code generation, streamlining development and improving productivity.
• Contributed to key company apps: user dashboard, Waffle (Discord clone), and Inspector (debugging tool).
• Enhanced** CI/CD **with Vercel optimizations, Nomad deployments, and backup systems for improved reliability.
• Conducted R&D: React Native passkeys in WebViews, AI agents, and MCP server implementation.
• Provided technical support to community and enterprise clients, fostering ecosystem growth.
• Authored technical documentation and developer guides, improving onboarding and reducing support overhead.

Tech Stack: TypeScript, NodeJS, React, React Native (Expo), Nomad

As the tech consultant for the Minister of the Romanian Ministry of Investments and European Projects, the role involves aiding the Minister in decision-making. This is achieved by engaging in ongoing national tech projects of interest, gaining a thorough understanding of these projects, and providing guidance to all involved parties.

Kin is a personal AI designed to enhance private life. Joined the team as the 2nd employee and contributed significantly to its growth. Kin successfully raised $1M from the Danish Government and $3M from cyber.fund.

Main Architectural Features:

• Local-first
• Private
• Multi-platform
• open-source LLMs

Highlights:

• Involved in all engineering aspects of the app, from R&D, to deployment and monitoring.
• Built a robust codebase with a focus on Developer Experience (DX) and best practices.
• Established CI/CD workflows using GitHub Actions and EAS Build for our mobile app and libraries.
• Implemented end-to-end tests using Maestro.
• Developed an on-device inference service using local AI models, ONNX and Transformers.js for vector embeddings and speech-to-text.
• Created and published an Expo module (Swift + Kotlin) for audio playback, utilized for text-to-speech.
• Developed an Expo module (Swift + Kotlin) as a wrapper around CozoDB, used for storing vector embeddings.
• Published an abstract-level implementation of AsyncStorage for React Native using TypeScript.
• Packaged our core capabilities as an isomorphic JS SDK, consumed by clients in various environments (react-native, nodejs, web).
• Implemented AI agent patterns like ReAct, CoT, RAG, using LangChain.js or plain TS.
• Developed AI agents for various tasks including triplets extraction, reasoning, tool usage or search.
• Contributed to open-source projects from our stack, either with bug reports, bug fixes, or new features, helping us move forward
• Otherwise fixing problematic dependencies by forking, patching or polyfilling
• Set up observability and instrumentation using OpenTelemetry and Grafana.
• Built a smart local job queue with recurring tasks, locks, and retry on failure or timeout mechanisms, triggered by user inactivity.
• Implemented backup and restore functionality for user data.
• Developed an interactive graph visualisation of the AI agent’s memory
• Benchmarked various libraries or AI models for performance.
• Delivered various UX & performance optimisations, improving FPS, time to main screen, time of first token
• Built lots of POCs for various technologies and scenarios, to figure out our next steps. Researched and leveraged Decentralized Identifiers (DIDs), **Decentralized Web Nodes **(DWN), and Trusted Execution Environments (TEE).
• Always available to help others

Tech Stack: TypeScript, React Native (Expo), NodeJS, Azure

Hypercent is the largest launchpad on the Kadena blockchain, enabling startups to raise over $3M through our crypto crowdfunding platform.

Highlights:

• Developed the infrastructure and hosted the official Kadena node. Leveraged Hasura on top of the node, to listen for specific on-chain events and to expose the chain data via GraphQL.
• Created Hypercent’s official crypto wallet.
• Authored smart contracts to implement our business logic.
• Built backend services to interact with the smart contracts.
• Developed the crowdfunding platform
• Maintained a robust monorepo hosting our wallet, website, backend, libraries, and tools.
• Developed various tools to enhance the engineering’s team productivity.
• Led a team of 4 developers to achieve business objectives.

Tech Stack: TypeScript, NestJS, NextJS, Pact-lang

Ronin is a fiat crowdfunding platform for startups. Responsibilities included building the platform from the ground up.

Highlights:

• Led a team of 3 developers.
• Designed and built the architecture powering the platform.
• Successfully launched the platform in production, which immediately started funding startups.

Qualitest is a leader in software outsourcing, catering to the needs of prominent clients such as Elbit Systems and Cellebrite.

Elbit Systems:

• Industry: Military technology and defense contractor.
• Highlights: Developed various features for a cyber intelligence platform.

Cellebrite:

• Industry: Digital intelligence for law enforcement.

• Highlights:

  • Developed a Docker container orchestration and monitoring tool, providing the platform with 100% control and visibility into its processes.
  • Successfully delivered a complex reporting system for operational and system data, aiding shareholders in making better decisions.

Tech Stack: TypeScript, AngularJS, NestJS, Docker

Genesis offers two premier products:

1. Kartra: An industry-leading marketing SaaS that integrates Customer, Email, Video, Affiliates, Pages, Campaigns, and Shopping Cart management into a single suite.
2. WebinarJam: "The most dramatic improvement to Live Casting, Event Streaming, and Webinar Broadcasting ever released to the public."

Highlights:

• Enhanced the features and usability of Kartra’s no-code web page builder, benefiting over 100k users.
• Successfully reduced the loading time for more than 500k web pages by at least 1 second.

Tech Stack: ES6, VueJS

TailPath is a B2B SaaS supply chain management platform that facilitates the blockchain pairing of data assets with physical products.

Highlights:

• Managed and extended the existing admin panel and API written in PHP.
• Rewrote parts of the API in NodeJS for improved performance and scalability.
• Developed the core business idea by creating a system for pairing data assets with blockchain transactions.
• Successfully developed and implemented an access control system used in NATO's largest medical exercise in history.
• Created and launched a blockchain-powered clothing donation mobile app, which was spotlighted by the UK Embassy in Bucharest.

Tech Stack: React Native, NodeJS, PHP, Solidity

888 is an international sports betting and gambling company.

Highlights:

• Enhanced the features and usability of 888’s main poker game.
• Successfully developed a modern web poker game from scratch, providing the company with a competitive edge.
• Designed the app's architecture based on product requirements.
• Translated designs into React components.
• Conducted R&D and created various Proofs of Concept (POCs) to determine the best technical approaches, such as choosing canvas over DOM for game rendering.

Tech Stack: TypeScript, ReactJS, Redux, KonvaJS, AnimeJS, Styled-components

Findie is a London-based startup specializing in generating ideal video summaries from full-length videos.

Highlights:

• Developed new features and enhanced the usability of the white-label video platform.
• Successfully delivered custom features for premium clients such as L’Oreal New York and MotoGP.

Tech Stack: React, Reflux, SASS, NodeJS

AMA Studios, a branch of Ubisoft, develops mobile games. Responsibilities included building an admin panel to manage games, developers, and payments.

Highlights:

• Led front-end and back-end development of admin panel features.
• Developed a unified API integrating multiple payment systems.
• Created a unified API for integrating multiple affiliate systems.
• Built a unified API for integrating various analytics and reporting systems.

Tech Stack: PHP with Symfony3, JavaScript, MySQL, Bootstrap

Arimatrix.com is a startup dedicated to helping people gain deeper insights into themselves. Responsibilities included building an app to compile psychological profiles of users.

Highlights:

• Translated designs into React components.
• Developed the API using Express, deployed on AWS Elastic Beanstalk with DynamoDB for data storage.

Tech Stack: React, Express, AWS Elastic Beanstalk, DynamoDB

Sandline is a cyber security company. Responsibilities included developing in-house cyber security products.

Highlights:

• Developed a SaaS platform to handle cyber incidents for companies operating SCADA equipment, such as oil refineries, nuclear power plants, and electric grid operators.
• Created a SaaS platform to manage GPS devices over 3G, including functionalities like geofencing, alerts, and asset tracking.

Tech Stack: PHP with Codeigniter, JavaScript, Bootstrap

CESTRIN is the Center of Informatics Studies within the Romanian National Road Company. Responsibilities included developing a reporting system to collect and analyze the status of nationwide infrastructure projects.

Tech Stack: PHP, JavaScript, MySQL, Bootstrap, D3.js

Founded a solo software development company as a student, generating $100k in revenue over 3 years by building custom web applications for various private and public institutions.

The Center for Advanced Strategies is a Romanian think-tank specializing in training on intelligence, security, and geopolitics. Delivered lectures on cybersecurity and OSINT.

The Association for Advanced Technologies is a Romanian NGO dedicated to addressing some of Romania's most significant challenges.

Contributions:

• Provided tech consultancy for various public institutions.

Successfully launched the national system for monitoring and surveillance of fiscal data collected from all cash registers in Romania.

Tech Stack: Go, RabbitMQ, Kubernetes (k8s), React

The "International Economic Intelligence" postgraduate program, offered by the Center for Advanced Strategies and the Academy of Economic Studies, is a transdisciplinary course focused on competitive intelligence, strategic analysis, and decision-making. It aims to equip participants with advanced tools for market analysis, business optimization, and strategic thinking in the international economic environment.

Contribution:

• Annually present a course on OSINT techniques.

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