Hey!

I am Vova, a backend engineer & quantitative developer. I am passionate about algorithmic trading and backend applications with Go and Python. Based in Wasrsaw, Poland.

Previously, I have completed my bachelor’s degree in Economics at Belarusian State University and master’s in Computer Science at Moscow Institute of Physics and Technology

Few years ago I photographed on DSLR. Now trying to combine gym, tennis and swimming.

Also, I shoot on film.

Writing
Go 1.26: Everything That Ships in February 2026 (2026)
Green Tea GC is now default, cgo is 30% faster, new(expr) works, SIMD lands as an experiment, and 20+ go fix modernizers can rewrite your code. The full breakdown.
Green Tea GC: How Go 1.26 Cuts Garbage Collection Overhead by Up to 40% (2026)
Go's new default garbage collector works with memory pages instead of individual objects. Here's how the algorithm works, why cache locality matters for GC, and when it won't help.
Atomics in Go and C++: How They Actually Work (2026)
A deep dive into atomic operations: how they work at the hardware level, why they're faster than mutexes, memory ordering, and when to use them.
FIX Protocol: The Language of Electronic Trading (2026)
A deep dive into the Financial Information eXchange protocol: message structure, session management, and a practical Go implementation connecting to Binance.
How Do Go Decimal Packages Work Under the Hood? (2025)
Inside shopspring/decimal: what type Decimal hides, why .Add allocates 6 times, and how three libraries trade precision for speed.
Linux perf: The Swiss Army Knife of Performance Analysis (2025)
A practical guide to Linux perf: CPU profiling, hardware counters, flame graphs, and finding performance bottlenecks.
CPU Cache: What Every Programmer Should Know (2025)
A deep dive into CPU caches, cache coherence, virtual memory, and NUMA. With benchmarks showing why your code might be 10x slower than it should be.
Go's unsafe Package: Power, Peril, and Practical Patterns (2025)
A deep dive into Go's unsafe package: what it is, how it works, when to use it, and why you probably shouldn't.
Go JSON Performance Showdown: Benchmarking the Fastest Libraries (2025)
A comprehensive benchmark comparison of 8 high-performance JSON libraries for Go: from standard library to SIMD-accelerated parsers.
Python 3.14: The Release That Actually Changes Things (2025)
T-strings, no GIL, subinterpreters, deferred annotations, a JIT compiler — Python 3.14 ships more fundamental changes than any release in years.
Initial post (2025)
Welcome!

Contacts:

v.saraikin1 [at] gmail [dot] com

telegram @saraikin