W

W Group

Global fintech ecosystem enabling blockchain adoption

Java Developer

Backend EngineeringUpdated on Nov 11
Full-timeUkraineNo salary listedIn-person

About the Job

Requirements

  • Strong Java programming skills, including Core Java, multithreading, asynchronous programming, and low-level optimizations.
  • Solid understanding of algorithms and data structures, with a focus on performance optimization.
  • Knowledge of networking and protocols, including client-server communication, low-latency optimizations, and WebSockets.
  • Experience with databases such as MySQL or PostgreSQL and MongoDB for handling large-scale financial data.
  • Strong understanding of operating systems, networks, and performance tuning.
  • Experience with distributed systems and microservices architecture.
  • Strong analytical and problem-solving skills, with a commitment to testing and quality assurance.
  • A track record of independently solving complex technical challenges with real industry impact.
  • Strong ability to debug, profile, and optimize performance in production systems.
  • Experience with automated testing, continuous integration, and deployment processes.
  • Passion for technology, problem-solving, and continuous learning.
  • Intellectual curiosity and a strong drive to grow within the quantitative finance industry.
  • Reliable and predictable availability to ensure smooth operation of production trading systems.

Responsibilities

  • Design and implement innovative solutions for algorithmic trading strategies.
  • Develop and optimize functionality for trading systems, ensuring low latency, high availability, and scalability.
  • Work on microstructure research, developing tools for market data analysis and feature engineering.
  • Build a risk management platform to enhance trading operations and risk control.
  • Engage in full-cycle development, including research, coding, testing, and production deployment.
  • Optimize the performance of trading architecture to maximize execution efficiency.
  • Maintain and improve data pipelines and system infrastructure.

Desired Qualifications

  • Knowledge of C/C++, particularly for performance optimization and understanding low-level system behavior.
  • Experience in Go or Rust.
  • Strong communication skills and a collaborative attitude.
  • Experience collaborating as part of a team.

About the Company

W Group

Global fintech ecosystem enabling blockchain adoption

W Group is a global fintech ecosystem that combines banking, payments, and blockchain infrastructure to make crypto accessible. Its flagship product, WhiteBIT, is a European cryptocurrency exchange offering spot trading, margin markets, and perpetual futures with many trading pairs. The group also includes Whitepay for crypto payments, Whitechain (an EVM-compatible Layer-1 blockchain), Hash Bank (Georgia’s first fully digital bank), and PayUniCard (e-wallet with international VISA cards), plus ventures like White.market, The Coinomist, and ByHi. Revenue comes from exchange fees, crypto processing fees, and various financial services, and the goal is to accelerate the mass adoption of blockchain by delivering trusted, interconnected financial services to over 35 million users in 150 countries.

Company size
Not listed
Company stage
Not listed
Total funding
$389.1M
Headquarters
Ukraine
Founded
2018

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