CareerPlan

Senior Software Engineer - Trading Platform

Sofia, Sofia City Province, BulgariaFull-time2026-10-09 → 2026-11-10
On-site

Core

Build and maintain low-latency, high-availability internal platforms for firm-wide visibility, trade record, and core infrastructure across eight trading regions.

Role type

Senior Software Engineer (Trading Platform)

Builds

Real-time observability systems, centralized trade ledgers, and shared services for a crypto market-making firm.

Domain

High-frequency trading, crypto markets, low-latency infrastructure

Required skills

Rust, C++, performance engineering, profiling, heterogeneous data reconciliation, time-series storage, system design, observability

Preferred skills

HFT pedigree, competitive programming, mathematics

Technologies

Rust, C++, pub/sub, message transport, databases, blockchain nodes

Responsibilities

Design and optimize low-latency systems for firm-wide visibility and trade capture; profile and rewrite hot paths without breaking consumers; manage shared services across multiple regions; maintain 24/7 operational health of trading systems.

Seniority

Senior, hands-on IC