Data Visualization Engineer

📍 Work mode: 100% Remote (US or UK working hours) 🕒 Contract type: B2B 💼 Experience level: Mid–Senior 💰 Rate: 50–65 USD/h net + VAT 📆 Project length: Long-term cooperation 🏢 About the Company We collaborate exclusively with a stable US-based client, a global leader in electronic trading platforms that has operated for over 25 years. The company serves the world’s leading asset managers, central banks, hedge funds, and other institutional investors — facilitating around 30 trillion USD in trades every month across its electronic marketplaces. 📌 About the RoleWe’re looking for a Data Visualization Engineer to join an international team developing data applications and interactive analytics tools for large-scale trading systems.In this role, you’ll design and implement data visualizations, build reliable data pipelines, and contribute to the development of production-grade data services used by global financial institutions. 💼 Your Responsibilities • Translate business requirements into technical specifications for data visualizations. • Present front-end mock-ups effectively to both technical and non-technical stakeholders. • Develop and operate data applications on Tradeweb’s data platform using public cloud infrastructure and modern technologies. • Build and maintain data pipelines — define schemas, create DAG workflows, and monitor data quality. • Manage and support mission-critical production services. ✅ Must Have • 3+ years of experience in data engineering or front-end development. • Solid programming experience with Python, SQL, JavaScript, and HTML/CSS. • Strong hands-on experience building data visualizations • Experience implementing authentication, authorization, and web application security. • Good understanding of HTTP, REST APIs, WebSockets, and gRPC. • Experience with Kafka, Spark, Airflow/Prefect, Pandas/Polars, or similar tools. • Experience with AWS or GCP (S3/GCS, EC2/GCE, IAM, etc.), Kubernetes, and Linux in production. • Excellent communication skills and ability to collaborate with technical and business teams. ➕ Nice to Have • Experience building custom visualization libraries for Streamlit. • Automated testing of web applications. • Performance optimization and scalability improvements. • Contributions to open-source projects. • Experience in financial services or fintech. 🎁 What We Offer • Competitive hourly rate: 50–65 USD/h net + VAT (B2B). • 100% remote work with alignment to US or UK time zones. • Long-term cooperation with a leading global fintech company. • Flexible work environment and technical ownership. • Opportunities to work with cutting-edge cloud and data technologies This role isn’t for you, but know someone who’d be a great fit? Refer them and earn up to PLN 5,000. Referral Program: Talent from your network