Ostrovskiy Alexander: C++ Programmer
Senior C++ Developer | Software Architect | London
Welcome to Ostrovskiy Alexander professional portfolio. With over a decade of experience crafting high-performance software solutions, I specialize in developing robust C++ applications that push the boundaries of what's possible in modern computing.

About Me
Growing up in St. Petersburg, Russia, I discovered my passion for programming at an early age, spending countless hours exploring the intricacies of computer systems. After completing my Master’s in Computer Science from Saint Petersburg State University, I embarked on a journey that would take me from writing low-level system utilities to architecting complex trading systems for some of London’s most prestigious financial institutions.
Today, I call London my home, where I continue to challenge myself with exciting projects that demand both technical excellence and creative problem-solving. The Ostrovskiy Alexander approach combines deep technical knowledge with a practical understanding of business needs, allowing me to deliver solutions that not only perform exceptionally but also provide real value to users and stakeholders.


Technical Expertise
My core strength lies in C++ development, with particular emphasis on modern C++ standards (C++17/20) and high-performance computing. I have extensive experience in:
Performance Optimization
I specialize in developing and optimizing critical systems where microseconds matter. My work involves fine-tuning algorithms, memory management, and CPU cache utilization to achieve maximum performance. Recent projects have included developing a real-time market data processing system that reduced latency by 40% through careful optimization of data structures and memory access patterns.
Systems Programming
My background in systems programming allows me to work effectively at both high and low levels of abstraction. I have developed device drivers, implemented custom memory allocators, and created efficient inter-process communication systems. I particularly enjoy working on projects that require a deep understanding of operating system internals and hardware architecture.
Financial Technology
Having worked extensively in London’s financial sector, Ostrovskiy Alexander has developed a strong understanding of trading systems, market data processing, and risk management platforms. I’ve contributed to the development of low-latency trading engines and real-time risk calculation systems used by major financial institutions.
Professional Journey
Currently, I work as a Lead C++ Developer at QuantumTrade Systems in London, where I head the core engine development team. Our focus is on building next-generation trading platforms that process millions of transactions per second with sub-microsecond latency.
Prior to this role, I spent five years at GlobalBank Technologies, where I led the development of their derivatives pricing engine. This system now handles over £50 billion in daily trading volume and has become a cornerstone of their trading infrastructure.
Development Philosophy
I believe that great software is born from a combination of technical excellence, clear communication, and a deep understanding of user needs. My development philosophy centers around several key principles:
Code Quality Writing clean, maintainable code is not just about following best practices—it’s about creating software that can evolve with changing requirements while maintaining its reliability and performance. I emphasize strong testing practices, clear documentation, and code that clearly expresses its intent.
Performance by Design Performance considerations should be built into software from the ground up, not added as an afterthought. This means making informed decisions about data structures, algorithms, and system architecture early in the development process. I frequently use profiling tools and performance metrics to guide development decisions.
Collaborative Development Software development is a team sport. I believe in fostering an environment where knowledge sharing is encouraged, code reviews are thorough but constructive, and team members feel empowered to contribute their ideas. Ostrovskiy Alexander’s experience leading development teams has taught me the importance of clear communication and mentorship in building successful software projects.


Recent Projects
Trading Engine Optimization
Led a team of five developers in redesigning the core matching engine for a major cryptocurrency exchange. The new system achieved a 65% reduction in latency and can handle over 500,000 orders per second. Key achievements included implementing a custom lock-free data structure for the order book and optimizing the network stack for minimal latency.
Real-time Risk Analytics Platform
Designed and implemented a distributed risk analytics system capable of calculating portfolio risk metrics in real-time across multiple asset classes. The system processes market data updates with sub-millisecond latency and can handle complex risk calculations for portfolios with thousands of positions.
Custom Allocator Framework
Developed a high-performance memory allocation framework specifically designed for low-latency trading applications. The framework reduced allocation overhead by 80% compared to standard allocators and virtually eliminated garbage collection pauses in critical paths.
Our Clients






Speaking Engagements
I regularly share my knowledge and experiences at technical conferences and meetups. Recent presentations include:
“Modern C++ in Ultra-Low-Latency Systems” – C++ London Meetup 2024 “Memory Management Strategies for High-Performance Applications” – Financial Technology Forum 2023 “Building Reliable Trading Systems with Modern C++” – Trading Technology Summit 2023

Education and Certifications
Master of Science in Computer Science Saint Petersburg State University Thesis: "Optimization Techniques for High-Frequency Trading Systems"
Professional Certifications: Advanced C++ Programming (C++ Institute) Linux System Programming (Linux Foundation) Financial Risk Management (Global Association of Risk Professionals)
Community Involvement
Ostrovskiy Alexander believes in giving back to the technology community that has supported my growth. I maintain several open-source projects focused on high-performance computing and regularly contribute to major C++ libraries. I also mentor junior developers through London's Tech Mentorship Program, helping them develop their skills and advance their careers in software development.
My Blog
I maintain a technical blog where I share insights about C++ development, performance optimization, and software architecture. Recent articles include:

"Understanding Memory Order in Modern C++"
An in-depth exploration of the C++ memory model and its implications for concurrent programming. This article discusses how different memory ordering constraints affect performance and correctness in multi-threaded applications.

"Optimization Techniques for Modern CPUs"
A detailed look at how CPU architecture influences software performance, covering topics like cache coherency, branch prediction, and instruction pipelining. Includes practical examples and benchmarks.

"Building Reliable Distributed Systems"
Insights from designing and implementing distributed trading systems, focusing on consistency, reliability, and performance considerations in distributed architectures.

Feel free to explore these articles and more on my blog section. I update regularly with new content about software development, technology trends, and lessons learned from real-world projects.
Technical Deep Dives
As part of my commitment to sharing knowledge and fostering technical excellence in the C++ community, I regularly publish detailed technical analyses and implementation guides. Here are some selected deep dives:
Implementation of Lock-Free Data Structures
In high-frequency trading systems, every microsecond counts. I've spent considerable time researching and implementing lock-free data structures that can handle millions of operations per second. My recent work includes developing a lock-free ring buffer that achieves near-zero contention in multi-producer, multi-consumer scenarios. This implementation is now used in several major trading platforms and has been crucial in reducing latency in critical trading paths.
Custom Memory Management Systems
Memory management is often the hidden bottleneck in high-performance applications. I've developed several specialized memory management systems, including a segregated storage allocator that reduces fragmentation and improves cache utilization. This work has led to significant performance improvements in real-world applications, with allocation times reduced by up to 90% compared to standard allocators.
Network Stack Optimization
Network latency can make or break a trading system. I've worked extensively on optimizing network stacks for low-latency applications, including implementing kernel bypass solutions and custom protocol handlers. Ostrovskiy Alexander's recent project involved developing a specialized network protocol that reduced round-trip latency by 35% compared to standard TCP/IP implementations.


Research and Publications
While my primary focus is on practical software development, I maintain strong connections with the academic community and regularly contribute to research in high-performance computing. Some of my recent publications include:
“Optimizing Memory Access Patterns in High-Frequency Trading Systems” Published in the Journal of Financial Software Engineering, 2023
“Implementation Strategies for Lock-Free Data Structures in Modern C++” Conference Proceedings, International Symposium on Computer Architecture, 2023
“Analysis of Cache-Friendly Data Structures for Real-Time Trading Applications” Technical White Paper, QuantumTrade Systems, 2024



Teaching and Mentorship
I believe in nurturing the next generation of C++ developers. Besides my regular mentoring activities, I’ve developed several specialized training programs:
Advanced C++ Workshop Series
I run quarterly workshops focusing on advanced C++ topics such as: Modern C++ features and their practical applications Template metaprogramming techniques Concurrent programming patterns Performance optimization strategies
These workshops have helped dozens of developers advance their careers and contribute more effectively to their organizations.
Code Review Clinics
Monthly sessions where I work with development teams to improve their code review processes and coding standards. These clinics have been particularly successful in helping teams transition to modern C++ practices while maintaining high performance and reliability standards.
Consulting Services
I offer specialized consulting services in several areas:
Performance Optimization System architecture review and optimization Bottleneck identification and resolution Implementation of high-performance algorithms and data structures
Trading Systems Development Design and implementation of trading engines Market data processing systems Risk management platforms
Training and Team Development Custom training programs for development teams Code review process implementation Modern C++ best practices workshops

Personal Projects
Beyond my professional work, I maintain several personal projects that allow me to experiment with new technologies and approaches:
HPCBench
An open-source benchmarking framework for high-performance computing applications. This project includes a suite of customizable benchmarks for testing various aspects of system performance, from memory access patterns to network latency.
TradeSimulator
A sophisticated trading system simulator that helps developers test their trading algorithms under realistic market conditions. The simulator can replay historical market data and simulate various market scenarios with configurable latency and execution parameters.
MemProfiler
A memory profiling tool specifically designed for C++ applications, offering detailed insights into memory usage patterns, allocation hotspots, and cache utilization. This tool has become popular among developers working on performance-critical applications.
Industry Insights
Drawing from my experience in both financial technology and systems programming, I regularly share insights about industry trends and technological developments:
The Future of Trading Systems
The trading landscape is evolving rapidly with the emergence of new technologies and markets. I believe the next generation of trading systems will need to handle not just traditional assets but also digital assets and decentralized finance protocols. This presents unique challenges in terms of security, scalability, and interoperability.
Evolution of C++ in Financial Technology
Modern C++ continues to evolve, and with it, our ability to write more expressive and safer high-performance code. I’m particularly excited about the potential of concepts in C++20 and the upcoming features in C++23 to improve code clarity while maintaining performance.
Sustainable High-Performance Computing
As the industry moves towards more sustainable practices, I’m increasingly focused on developing systems that not only perform well but also use computing resources efficiently. This includes research into energy-efficient algorithms and green computing practices.
Personal Philosophy
Ostrovskiy Alexander believes that technical excellence comes from a combination of deep understanding, practical experience, and continuous learning. Throughout my career, I’ve maintained a balance between pushing the boundaries of what’s possible with technology and ensuring that solutions are practical and maintainable.
In my view, the best software developers are those who can bridge the gap between theoretical knowledge and practical implementation. This philosophy guides my approach to both development and mentorship, where I emphasize not just the “how” but also the “why” of software development decisions.

Contact
I’m always interested in discussing new challenges and opportunities in the field of high-performance computing and financial technology. Whether you’re looking to collaborate on a project or just want to discuss the latest developments in C++, feel free to reach out.
Based in London, United Kingdom Available for consulting and speaking engagements.
Office Phone
+442089865230
Office Location
141-143 Shoreditch High St, London E1 6JE, United Kingdom
Office Email
© 2024, Ostrovskiy Alexander -> C++ Programmer