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Decebal Dobrica

Decebal Dobrica

Rust Systems & Agentic AI

About Me

I'm a Rust engineering leader and the founder of Wolven Tech, a Rust-only technical advisory practice. I've architected and shipped 1M+ lines of production Rust across four event-sourced platforms, including desktop AI tooling, gRPC microservices, embedded analytics engines, and WASM frontends. I authored AllSource, an embedded Rust event store with WAL and Parquet columnar storage built for 24/7 throughput, plus AllFrame, the Rust framework that powers it.

Currently Senior Software Engineer at iProov, building deepfake-detection and liveness-verification features that protect ~5M biometric transactions per year, while modernising the JS/WASM stack (Biome, Bun, buf.build) for 30%+ CI/CD gains. Previously Technical Lead at Ebury, Engineering Manager at Tellimer, and Technical Lead at Breakout Clips, with 15+ years across fintech, identity, SaaS and Web3.

Wolven Tech is my operating vehicle for specialist Rust engagements: HFT, HPC, trading, and 24/7 platforms where microseconds and state integrity matter. Typical outcomes vs. equivalent TypeScript services: 6–10× memory reduction, 8× smaller release binaries, 5× faster startup. I also lead 0→1 AI-augmented product delivery. The clearest example: a production AI document-parsing platform on AWS Bedrock + SageMaker that powered multiple fintech analytics products and cut AWS cost by 75%.

I write about Rust systems design, event sourcing, agentic AI workflows, and how small teams outbuild big ones. Public artifacts include monorepo-meta on crates.io and the wolven-tech/rust-v1 production template. Based in London, available fully remote on a B2B (Outside-IR35) basis.

Expertise

AI Engineering & GenAI

Leading AI integration strategies for development teams, navigating GenAI adoption challenges, and building intelligent systems that enhance productivity and innovation.

Cloud Architecture & SaaS

Expert in cloud management, serverless architectures, and SaaS development. Proven track record of reducing infrastructure costs by 75% through smart AWS optimization.

Technology Strategy & Leadership

Engineering Leader guiding startups through digital transformation. Led teams of 25+ engineers, increasing productivity by 300% through modern development practices.

Blockchain & Web Development

Deep expertise in blockchain technologies, custom software development, and building scalable web applications from MVPs to production-ready systems.

Experience

Senior Software Engineer

iProov · Full-time · Nov 2025 - Present

Biometric face verification at scale. Building deepfake-detection and liveness features for regulated identity assurance.

  • Shipping verified-video features (deepfake detection, liveness) for safety-critical, ML-adjacent identity workflows
  • Modernised the JS/WASM stack (Biome, Bun, buf.build), improving CI/CD and build performance by 30%+
  • Hardened an encrypted-WebSocket channel protecting ~5M biometric transactions per year
  • Tech stack: TypeScript, WebAssembly, Bun, buf.build, WebSockets

Founder & Principal Rust Engineer

Wolven Tech · Ongoing · 2025 - Present

Specialist Rust technical advisory for HFT, HPC, trading, and 24/7 platforms. Author of AllSource and AllFrame.

  • Authored AllSource, an embedded Rust event store with WAL, Parquet columnar storage, zero-copy Arrow IPC, and a 7-day durability stress harness
  • Authored AllFrame, the Rust framework that powers AllSource
  • Engagement models: Technical Due Diligence, Fractional Architect, Platform Sprint, Advisor
  • Public Rust: monorepo-meta on crates.io (Tokio + tmux task orchestrator, ~2.7 MB binary), wolven-tech/rust-v1 production template, mcp-log-server
  • Tech stack: Rust (Tokio, Axum, Tonic, Arrow/Parquet, DataFusion, RocksDB, Leptos, Tauri 2)

Technical Lead

Ebury · Full-time · Apr 2025 - Sep 2025

Architected a fully-audited event-sourced platform handling 2M requests/day at regulated-fintech reliability standards.

  • Designed the event store and projection model; piloted Node.js → Bun + Elysia.js migration cutting API latency 25% and CI/CD build 30%
  • Led a cross-functional team of 10+ through the cutover; introduced Claude and Cursor into developer workflows
  • Reduced onboarding time by 65% while preserving regulatory compliance
  • Tech stack: TypeScript, React, Bun, Elysia.js, AWS, event sourcing

Part-time Smart Contract Engineer

Mundo Wallet · Contract · Apr 2025 - Sep 2025

Repositioned a non-custodial Web3 wallet into a fintech app with virtual-card integration for USD-scarce markets.

  • Delivered Rust smart-contract and wallet-feature optimizations on Solana driving sustainable growth
  • Cut 3rd-party blockchain stack costs by 60% through indexer optimisation and chain selection
  • Tech stack: Rust, Solana, Anchor

Part-time Senior Developer

HedgeX Capital · Contract · Nov 2024 - Mar 2026

Auto-rebalancing crypto strategy engine in Rust + WASM, deployed as serverless Fermyon workloads.

  • Lifted measured trading efficiency 15% via low-latency execution across multiple exchange WebSockets
  • Improved scalability 20% with a modular Rust + WASM architecture for rapid strategy iteration
  • Tuned hot-path allocation and serialization for sub-second exchange quote ingestion; Supabase as GraphQL data plane
  • Tech stack: Rust, WASM, Fermyon, Supabase

Senior Software Engineer

BrainRocket · Full-time · Dec 2024 - Mar 2025

Greenfield Jackpot platform (0→1), architected for high concurrency and fault tolerance.

  • Designed responsibility-focused microservices (NestJS, NATS.io, AWS) and a C4 architectural model that drove cross-team alignment
  • Established CI/CD pipelines on AWS + Vercel to shorten feedback loops
  • Tech stack: Bun, NestJS, TypeScript, Kubernetes, AWS

Part-time Senior Software Engineer

VendueTech · Contract · Sep 2024 - Jan 2025

Public-auction analytics platform on Azure with multi-layered RBAC.

  • Designed a multi-layered RBAC system enabling fine-grained feature access
  • Increased access efficiency 40% by centralising public auction data into an Azure-based platform
  • Tech stack: Python, React, Azure

Technical Lead

Breakout Clips · Full-time · Mar 2023 - Jul 2024

AI-assisted video tooling. High-performance render pipeline on GCP Cloud Run + FFmpeg.

  • Cut video-rendering latency 30% via FFmpeg + GCP Cloud Run + Pub/Sub pipeline
  • Reduced CI/CD infra cost 40% with a Pulumi IaC pipeline and ephemeral preview environments
  • Transitioned engineering to trunk-based development, cutting integration issues 20%
  • Tech stack: TypeScript, Python, GCP Cloud Run, FFmpeg, Pulumi

Engineering Manager

Tellimer · Full-time · Aug 2019 - Mar 2023

AI and fintech analytics platforms. Delivered a 0→1 production AI document-parsing platform on AWS Bedrock + SageMaker.

  • Led research and delivery of a Python/FastAPI AI parsing pipeline, commercialised across multiple fintech analytics products
  • Cut AWS cost 75% through a serverless-first architecture
  • Guided REST → GraphQL migration; directed a team of 9 engineers with agile rituals and structured mentorship
  • Tech stack: TypeScript, Python, FastAPI, AWS (Lambda, SageMaker, Bedrock), GraphQL, Pulumi

Earlier Roles

Flyt, Funeral Zone, eMAG, eRepublik Labs & Others · 2010 - 2019

Software Architect and Senior Engineer roles across PHP, Python, and JavaScript stacks. Built expertise in serverless architecture, event sourcing, GraphQL, blockchain, and team leadership.

Education

Software Engineering

Military Technical Academy2007-2011

Advanced software engineering studies with focus on building robust, scalable systems and technical leadership fundamentals.

Professional Certifications

Various • Ongoing

Continuous learning through professional certifications and technical training.

  • Linux/Unix System Administration
  • Zend Certified PHP 5.5 Engineer
  • Transaction Monitoring (Sumsub)