Lead Engineer, Pricing & Decision Systems
One Park Financial2 days ago
Plano, TX, USAStaff+
Responsibilities
- Own and evolve the Python pricing and decision engine deployed on AWS.
- Implement scoring models, pricing rules, offer grids, modifiers, rates, fees, and offer sizing logic.
- Lead and mentor supporting engineers, establish architecture and coding standards, and review high-risk pricing changes.
- Own pricing data correctness, audit records, experiment history, versioned reference files, reconciliation, and quality checks.
- Design and analyze A/B tests and maintain clean experiment data and assignment logic.
- Integrate the pricing engine with sales, CRM, credit, and bank-data platforms.
- Maintain production reliability, observability, and health dashboards.
- Partner cross-functionally with Product, DevOps, Data Engineering, Data Science, and QA on roadmap, deployment, model integration, and testing.
- Build analytics applications, data products, storage, data plumbing, and quality checks as the analytics platform grows.
- Use modern AI and LLM tooling to accelerate prototyping, documentation, testing, and delivery.
Requirements
- 5+ years of professional Python development building and maintaining production applications and services.
- Experience leading or mentoring engineers, setting standards, reviewing code, and directing a small team.
- Experience building and maintaining REST APIs using FastAPI, Flask, or similar tools.
- Hands-on production AWS experience with ECS/Fargate, DynamoDB, S3, Lambda, SQS, Secrets Manager, and CloudWatch.
- Experience designing DynamoDB access patterns, handling schema and type changes, and managing versioned S3 data such as Parquet and partitioned datasets.
- Strong SQL skills and comfort with relational and NoSQL data, CSV, and Parquet files.
- Experience implementing business-logic-heavy applications where correctness is critical.
- Familiarity with Pydantic or similar data modeling and validation frameworks, plus reconciliation and QA checks.
- Hands-on experience integrating machine-learning or analytical model outputs into production, including feature engineering and scoring logic.
- Experience designing or supporting A/B tests and experimentation, including stratification and experiment-data integrity.
- Strong communication, cross-team collaboration, self-direction, and end-to-end ownership.
- Comfort using modern AI and LLM tools.
- Preferred: financial services, lending, or pricing experience; Salesforce or HubSpot integrations; Docker and ECS deployments; dbt or Airflow; Next.js and TypeScript; AI infrastructure and agents; RAG, LangChain, LangGraph, Agents SDK; MLflow or SageMaker.
Benefits
- Hybrid work arrangement in Plano, United States.
- Local and national health insurance.
- Dental and vision insurance.
- Group Medical Bridge.
- 401(k) with company match.
- Company-paid identity protection and life insurance.
- Generous paid time off and holidays.
Tech Stack
Categories
About One Park Financial
One Park Financial provides small-business financing, connecting entrepreneurs with working capital through options such as short-term funding and factoring. The privately held fintech, founded in 2010 and headquartered in Miami, generates revenue by originating and pricing financing offers and matching applicants with capital providers. It serves small and midsize businesses via an online application process and a partner network.