Professional Summary
Senior Quantitative Developer with over 20 years of experience building exchange connectivity, low-latency trading systems, and market-making infrastructure across four continents. Eight years at IMC Financial Markets connecting 90+ global exchange venues. Delivered the Goldman Sachs reconciliation system for 630+ securities. Built the music metadata database Apple acquired for Apple Music Classical. Two US patents in healthcare IT. Expertise in sub-millisecond latency systems, FIX protocol, proprietary binary exchange protocols, ring buffer architectures, and JVM performance engineering. Selectively exploring senior and principal-level roles in quantitative finance and trading technology.
Professional Experience
Senior Software Engineer — Capital Markets Technology
Amsterdam, Netherlands
- Building FX swap market data publisher sending real-time prices to Reuters through RFA feed for ING's capital markets division
- Low-latency market data distribution with proper market data protocols across internal trading desks
- Java-based systems engineering for market data infrastructure at one of Europe's largest banks (€85B market cap, 40+ countries)
Java Software Engineer — Trading Systems
Amsterdam, Netherlands
- Retrofitted existing trading architecture to enable CBBC (Callable Bull/Bear Contract) options trading on the Hong Kong Exchange (HKEX)
- Maintained and enhanced low-latency options and ETP trading systems at a top global ETP market maker
- Exchange connectivity and trading infrastructure development for equities and derivatives across global venues
Senior Software Engineer — Exchange Connectivity
Amsterdam, Netherlands
- Built and maintained exchange connectivity for 90+ global venues including CME, Eurex, ICE, NYSE, OPRA, LSE, and dozens of APAC and emerging market exchanges at one of the world's top three options market makers
- Implemented FIX protocol and proprietary binary exchange protocols (MDP 3.0, iLink, Enhanced Transaction Solution, ITCH, Pillar) for order routing and market data
- Designed and delivered the Goldman Sachs reconciliation system covering 630+ securities when IMC acquired Goldman Sachs' NYSE DMM rights — inception to production in four months (2014)
- Built the real-time ETF basket valuation system that launched IMC's ETF trading desk — zero to live trading in three months (2016)
- Developed news aggregation system integrating Bloomberg, Reuters, and Federal Reserve announcements for real-time trading signals
- Engineered sub-millisecond latency systems: ring buffer architectures (LMAX Disruptor), kernel bypass networking (DPDK), CPU affinity, NUMA-aware memory allocation, lock-free data structures, zero-allocation hot paths
- JVM performance engineering: garbage collection tuning, off-heap memory management, deterministic latency optimization
Senior Engineer — Metadata & Search Systems
Amsterdam, Netherlands
- Built the music metadata database that became the foundation of Apple Music Classical when Apple acquired Primephonic in August 2021
- Designed hierarchical metadata model for classical music: composer → work → opus → movement → recording → conductor/orchestra/soloists
- OCR'd and parsed the 1,399-page Da Capo Catalog using Perl regex grammar parsing; built matching engine connecting catalog metadata to 5M+ audio recordings
- Developed purpose-built classical music search engine supporting simultaneous multi-field queries
Director of Software Development
United States
- Built proprietary closed-loop messaging system for emergency radiology — real-time escalation and workflow tracking for critical studies
- Filed 2 US patents for emergency radiology workflow systems: closed-loop critical study notification and escalation chain systems
- Led development of Radiology Information System (RIS) with sentinel event tracking, audit trails, and 24/7 emergency coverage management
- Managed team delivering Java, Spring Boot, MongoDB, Docker, and AWS-based healthcare infrastructure
Software Engineer — Teleradiology Systems
Milwaukee, WI, United States
- Built software for remote radiologist reading systems at one of the early teleradiology companies
- Developed systems enabling radiologists to read and report on medical imaging studies remotely with real-time delivery
Software Engineer — Industrial Automation
Milwaukee, WI, United States
- Developed PLC ladder logic and automation software for factory floor control systems
- Built industrial automation systems where physical consequences were immediate and system reliability was critical
Technical Skills
Languages
Java (primary — production-scale low-latency), Kotlin, Python, C++, Perl
Trading Systems
Exchange Connectivity, FIX Protocol, Proprietary Binary Protocols (MDP 3.0, iLink, ITCH, Pillar), Order Management Systems, Market Data Systems, Reconciliation Systems, ETF Valuation
Low-Latency
Sub-millisecond latency, Ring Buffer Architecture (LMAX Disruptor), Lock-Free Data Structures, Zero-Allocation Hot Paths, Kernel Bypass Networking (DPDK), CPU Affinity, NUMA-Aware Memory
JVM Engineering
Garbage Collection Tuning, Off-Heap Memory Management, JVM Performance Optimization, Deterministic Latency
Infrastructure
Spring Boot, Kubernetes, Docker, AWS, GCP, PostgreSQL, MongoDB, Linux Systems Programming, TCP/IP, Multicast
Exchanges
CME, Eurex, ICE, NYSE, NYSE Arca, OPRA, LSE, SGX, HKEX, ASX, ADX, DFM, Tadawul, DGCX (90+ venues total)
Domains
Market Making, Algorithmic Trading, High-Frequency Trading, Options Trading, ETP/ETF Trading, Capital Markets, Market Microstructure