Fluent Trade Technologies

Big Data & Infrastructure Engineer (Time-Series Specialist)

In short

This remote senior role owns the Big Data/Time-Series database architecture for an FX Trading Analytics platform at a fintech firm serving global banks and hedge funds. It covers evaluating and implementing a Big Data/NoSQL engine, designing schemas for massive high-velocity datasets, and optimizing complex time-series queries for sub-second performance. The role requires deep expertise in a database like ClickHouse, InfluxDB or ScyllaDB/Cassandra, experience with high-frequency streaming data, strong Linux and low-latency tuning skills, and at least 3 years of relevant experience.

Description
Fluent Trade Technologies is a global fintech software firm at the forefront of providing state-of-the-art technology to the world's largest global banks and hedge funds. Specializing in ultra low-latency strategy and market data solutions, Fluent is committed to delivering cutting-edge innovations to the Financial Industry. With a prominent Israeli R&D center in Jerusalem and global development centers, Fluent is a dynamic and collaborative environment.
We are seeking a Big Data & Infrastructure Architect to spearhead the data architecture for our new FX Trading Analytics platform. You will be the primary authority on the big-data engine that powers real-time and historical analysis of liquidity, fill ratios, and market impact. This is a foundational role where you will select, implement, and optimize the "brain" of our analytics suite. The position is a remote position based in Ukraine.
Responsibilities
•Architecture & Tool Selection: Evaluate and select the optimal Big Data/NoSQL engine to handle high-frequency FX market data and trade execution logs.
•Infrastructure Ownership: Own the end-to-end installation, configuration, scaling, and long-term maintenance of the database environment.
•System Design & Configuration: Design the database schema and storage strategy to support massive datasets while ensuring high availability and resilience.
•Query & Performance Optimization: Build and tune complex time-series queries (calculating metrics like Effective Spread and Last Look Hold Times) to ensure sub-second responses for real-time monitoring tools.
•Knowledge Leadership: Act as the subject matter expert, training GUI developers and team members on best practices for efficient data retrieval and interaction with the data layer.
•Technical Collaboration: Work closely with the team leader and GUI developers to ensure the data infrastructure perfectly supports the product requirements.
Requirements
•Deep knowledge of at least one industry-leading Big Data or Time-Series database (e.g., ClickHouse, InfluxDB or ScyllaDB/Cassandra).
•Proven experience managing "high-velocity" data environments (streaming ticks, execution logs, and order book events).
•Strong proficiency in writing and optimizing complex queries for massive datasets (billions of rows).
•Extensive experience in a Linux-heavy environment with a focus on system-level performance and low-latency tuning.
•Ability to translate business metrics into efficient data structures without necessarily writing application-level code.
•Excellent English communication skills.
Advantages
•Experience in the financial industry (FIX protocol, FX trading, etc.).
•Background in high-performance hardware/software integration.
•Experience with scripting for automation (Python, Bash).

Stop applying.
Get referred.

$10 in free credits

In just 60 seconds, fully on autopilot — Eraldt's AI agents read your CV, map the roles you fit, find live vacancies and the people who can refer you, write personal emails, and get you referred.

This isn't an application: your CV doesn't go to the company, and we don't promise a referral for this exact role.

Discover who else lands interviews on autopilot