◆ 6/10
fintechtechOtherremote
About this role
Join BTSE as a Senior Java Engineer to build and maintain a high-performance real-time data platform. Work in a collaborative environment impacting data accuracy and reliability in fintech.
Description
About BTSE
BTSE Group is a leading global fintech and blockchain company that is committed to building innovative technology and infrastructure. BTSE empowers businesses and corporate clients with the advanced tools they need to excel in a rapidly evolving and competitive market. BTSE has pioneered numerous trading technologies that have been widely adopted across the industry, setting new benchmarks for innovation, performance, and security in fintech. BTSE’s diverse business lines serve both retail (B2C) customers and institutional (B2B) clients, enabling them to launch, operate, and scale fintech businesses.About the Opportunity
We are seeking a Senior Java Engineer to join the team building our real-time data platform. You will build, optimize, and maintain a high-performance, low-latency system that ingests, normalises, and computes reference values from multiple external data sources.Responsibilities
Responsibilities
- Implement composite reference-value algorithms that remain stable and representative under highly volatile input conditions.
- Build and maintain aggregation methodologies (e.g. volume-weighted, time-weighted, median-based) used in downstream periodic calculations and reporting.
- Deliver accurate, timely data feeds and calibration inputs to internal monitoring and control systems; integrate new data sources on request to improve coverage and resilience.
- Conduct statistical and time-series analysis on high-frequency data to detect anomalies, latency patterns, and data-integrity issues.
- Design low-latency capture, normalisation, and cross-source synchronisation of external real-time feeds.
- Collaborate with devops and infra teams to deploy production-ready Java code on trading systems.
- Backtest and monitor model outputs; propose data-driven improvements to accuracy and robustness.
- Document methodologies and contribute to internal pricing standards across the firm.
- Support business operations, including on-call troubleshooting of pricing issues and onboarding new instrument listings.
Requirements
Requirements
- Interest in global capital markets and quantitative/systematic data analysis.
- 5+ years of hands-on experience with Java development.
- Experience with real-time or high-throughput data systems.
- Strong understanding of multi-threading, concurrency, and low-latency system design.
- Solid data structures, algorithms, and design patterns.
- Strong analytical and problem-solving skills; clear communication.
- Excellent communication and teamwork skills.
Conditions & Benefits
Nice to have
- Experience with real-time market data feeds or external data-provider APIs (REST/WebSocket).
- Familiarity with derivative instrument data (e.g. contract specifications, reference rates).
- Cloud platform experience (AWS).
- SQL and NoSQL databases.
- Python for backtesting, analysis, or tooling.
- Understanding of monitoring, alerting, and control systems for real-time pipelines.
- Spring Boot or similar Java backend frameworks.
Job Details
Market range (est.)$120k–$245k
LocationRemote
AI Score★★★★★★☆☆☆☆ 6/10
PostedSep 18, 2026 (2d ago)
Tags & Skills
fintechtechOtherremote
Tech Stack
Javareal-time data systemsmulti-threadingconcurrencylow-latency system designdata structuresalgorithmsdesign patternsSQLNoSQLPythonSpring Boot