Hi, I'm Mavia.

i build backend systems for products that move money.

backend, ai, crypto, security — whatever gets the job done.

m.sc. cybersecurity student at btu cottbus–senftenberg, germany. 5+ years building web3 backends before that.

wrote docs. shipped projects.

also vibed with devs at encode bootcamp.

SPECIALIZE IN:

complex protocols architecture & design.

and making apps/protocols look like someone cared.

off-screen, i play cricket.

SONG RECOM:

🎧 you and i by naryquokka    🎧 blue by yong kai

projects

Cooking-Ai-Journal

An AI-powered crypto trading terminal integrated with Hyperliquid that provides smart pre-trade and post-trade analysis. Built for traders who want actionable market insights alongside fast, seamless trade execution.

- Engineered core data ingestion pipelines tracking perpetual market data from dYdX and HyperLiquid APIs for AI training models.

- Optimized database queries to efficiently calculate trader net positions and historical PnL.

- Expanded API endpoints to dynamically support multi-coin queries and complex date window filtering.

Tars

A Solana-based platform for deploying and monetizing AI agents, built on industry-standard and proprietary frameworks for scalability and performance.

- Built an autonomous AI agent that deploys and manages tokens on pump.fun with minimal human intervention.

- Integrated Discord and Twitter automation to handle community building, engagement, and moderation at scale.

- Deployed the agent on Tars AI Market, combining on-chain token operations with social media management into a single workflow.

Coin Terminal

Coin Terminal is a leading crypto launchpad with a 15.95% average ROI, connecting over 0.5M investors to innovative projects.

- Design and create architecture and database to handle high-volume user transactions during investment periods.

- Integrate Merkle root to determine the winner of the IDO.

- Implement Redis caching to efficiently provide user IDO data.

Spaace Marketplace

The #1 Gamified NFT Marketplace and aggregator with 100% revenue sharing in ETH for the community. Focused on immersive gamification and rewards, Spaace boasts a unique, community-centric NFT trading experience where traders become players.

- Convert Google Pub/Sub service to RabbitMQ for better performance.

- Use Reservoir Sync Node to sync data between the reservoir and the database.

- Implement Quest System for users to earn rewards by completing tasks.

Completed
Stashed Wallet

The next-gen wallet takes crypto management to the next level. It integrates cutting-edge features like multi-chain support, Account Abstraction (ERC-4337), MultiChain Gas Abstraction, advanced analytics, and an NFT marketplace, all wrapped in a user-friendly interface

- Integrate Account Abstraction (ERC-4337)

- Implement MultiChain Gas Abstraction

- Integrate NFT Aggregator for Comprehensive NFT Discovery

- Build SDK for Seamless Platform Integration

Artfi

Artfi is a decentralized marketplace for fractional artwork purchases. It allows users to buy and sell fractional shares of artwork, enabling art enthusiasts to invest in high-value art pieces. Users can purchase shares of artwork using cryptocurrency and receive dividends based on the value of the artwork.

- Develop Marketplace Server for Fractional Artwork Purchases

- Integrate Paper Wallet Functionality for Web2 User Experience with Social Logins

- Integrate AWS Media Converter SDK for Video Streaming Conversion

S

Security architecture review as code. Describe a system in YAML and get a STRIDE threat model, risk scores on a likelihood/impact matrix, a security concept report and a CI/CD policy gate.

- 26 architecture control checks, each mapped to CWE and the OWASP Top 10.

- Formal risk acceptance with a named approver and an expiry date, after which the finding is enforced again.

- Python, one runtime dependency, 157 tests.

J

Static taint analyzer for Java bytecode. Finds SQL injection, command injection and path traversal directly in a .jar through Soot dataflow analysis.

- Forward taint analysis over Soot's Jimple IR with fixed-point convergence on control-flow graphs.

- Runs as a Spring Boot REST API or a CLI, with JSON and SARIF output.

H

Multi-tenant OAuth2/OIDC platform: one identity service issuing tenant-scoped JWTs, and a resource server on top of it.

- Kotlin, Spring Boot 3 and Spring Authorization Server, with PostgreSQL, Flyway and Testcontainers.

- Every request is scoped to the tenant in the validated token; a missing tenant claim is refused.

☀

Planning tool for solar PV and heat-pump installers, from a customer address to a priced proposal in one workflow.

- Satellite roof scanner, 12-month yield simulation and an automated bill-of-materials and quote builder.

- AI copilot for German feed-in tariffs, VAT rules and 25-year ROI.

work

Drox January 2024 - Present

Backend & AI Engineer

- Build perpetuals trading data for dYdX v4 and HyperLiquid: ingestion of trades, fills, funding and candles, position reconstruction and per-user PnL.

- Wrote the WebSocket gateway that streams long-running AI trader-profile jobs to the client as progress events.

- Own the LLM layer of a market-intelligence product: Claude as primary model, GPT-4o as fallback, a circuit breaker per provider and versioned prompts.

- Implemented multi-chain account abstraction in the wallet server, so users can transact without holding gas on every chain.

- Created a custom indexer for EVM blockchains.

Auto Compound (Contract) June 2025 - August 2025

Web3 & AI Engineer

- Wrote the investment plugin that lets an elizaOS-based AI agent zap in and out of liquidity positions from a plain-language request.

- Added QuickSwap and subgraph plugins, plus the principal and APR maths across Polygon and BNB Chain pools.

Artfi May 2023 - November 2023

Backend Engineer

- Worked on-site with the client in Dubai and designed the server infrastructure from scratch.

- Collaborated with other team members to design and implement new features.

- Refine existing programs and develop new web tools.

- Developed a high-performance, user-friendly application.

- Engaged in pair programming sessions to optimize code and enhance team collaboration.

BlockApex (Part-time) May 2023 - December 2023

Backend Engineer

- Worked on a decentralized exchange, implementing partial and full order matching with a price-time priority algorithm.

Xord October 2020 - April 2023

Full Stack Engineer → Team Lead

- Promoted twice, ending as lead of a team of five engineers.

- Architected the backend for the Coin Terminal launchpad (0.5M+ registered investors), using Merkle-root allowlists and Redis caching for sale-opening traffic.

- Excel in implementing high-quality solutions across diverse projects, including NFTs, staking, Web3 Wallets, flash loans, bridges, and crypto lending/borrowing platforms.

- Gained experience working with several well-known blockchains, which include EVM, Solana, Near, and Concordium.

- Spans a wide tech stack, including JS, TS, Go, Rust, Java, and Solidity. I have worked with various frameworks like Nest.js, React.js, Spring Boot, Node.js, and Anchor.rs.

- Strong computer science fundamentals in system design, data structures and algorithms.

- Worked on an Ethereum Layer 2 mobile wallet and integrated zkSync.

- Worked on Food Delivery Mobile App which use binance smart chain and other payment delivery methods with MongoDB geospatial indexing.

- Experience working with various databases, including SQL, PostgreSQL, MongoDB (Mongoose) and Pinata.

- Experience with writing and maintaining unit tests with Jest, Enzyme, and Hardhat using TDD.