Senior Software Engineer, Data Platform

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🔥 0 minutes ago

🇺🇸 United States – Remote

💵 $150k - $200k / year

⏰ Full Time

🟠 Senior

🏗️ Platform Engineer

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Cross River

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 2008

🏦 Banking

💳 Fintech

☁️ SaaS

💰 $620M Series D on 2022-03

Banking • Fintech • SaaS

Cross River is a leading technology-focused financial company that provides API-driven banking infrastructure. They enable a wide range of financial services, leveraging partnerships with major payment networks like Visa, Mastercard, and American Express to offer card issuing solutions. Cross River supports innovation in financial services through a variety of products, including infrastructure for banks, digital lending solutions, faster payments like FedNow® and RTP®, and card and account programs for credit and debit. Their solutions cater to numerous sectors, redefining financial services with compliance-integrated solutions, serving neobanks, digital lenders, and various institutional credit investors.

📋 Description

• Design, develop, and maintain full-stack software in support of Cross River's data platform • Build and operate AI-native capabilities: LLM-powered agents and reasoning loops, retrieval-augmented generation (RAG) over the data catalog, and natural-language-to-SQL query experiences • Integrate large language models responsibly, with rigorous permission checks, tracking, and observability on every model call • Act as a thoughtful and considerate data steward, with a mind for strong data security • Engineer React-based web UIs that present complex data (catalogs, lineage, dashboards, and conversational interfaces) clearly and accessibly • Build and operate Python back-ends that house APIs and integrate with the data platform and adjacent systems • Interact with AWS services and technologies including Lake Formation, Glue, Iceberg, Hive, Athena, ECS, and Snowflake • Operate and troubleshoot and issues across the UIs, APIs, agents, and data pipelines • Collaborate with other software engineers, data engineers, data scientists, and business personnel to ensure business, security, and operational needs are met • Manage code and versioning effectively using Git and participate in architectural discussions on product- and platform-level designs • Ensure best practices around development, testing, and documentation.

🎯 Requirements

• 5+ years of experience in software engineering, with a strong focus on full-stack web and API development • Strong front-end skills with React and TypeScript • Strong back-end / API development skills in Python • Hands-on experience building with large language models, such as integrating LLM APIs, agents, RAG, or other AI-powered application features • Proven experience with AWS cloud environments (ECS, IAM, S3, and data services such as Glue, Athena, or Lake Formation) • Strong experience with relational databases and SQL, plus Git for version control and review processes • Very strong problem-solving skills and an enthusiasm for delivering working, performant, and operationally stable solutions.