Python API Engineer

About this role

Where Ambition Meets Innovation Build a career that matches all your initiative with an impressive dose of innovation. From cutting-edge resources and a collaborative environment to the freedom to make an impact and more, you’ll find the ingredients you need at LPL Financial to shape your success while helping clients pursue their financial goals.

Job Overview:

The Senior Software Engineer (Python / AWS) is a key member of the Data Modernization & Integration organization , responsible for building and supporting scalable cloud-native solutions that enable critical business platforms and enterprise integrations.

This role combines Python development, AWS cloud engineering, API integration, automation, observability, and production support . The engineer will develop and maintain Python-based services and REST APIs, support cloud migration initiatives, implement monitoring and resiliency solutions, and help drive operational excellence across AWS-hosted applications.

The ideal candidate brings strong experience with Python, REST APIs, AWS services (Lambda, API Gateway, CloudWatch), Terraform, CI/CD pipelines, and enterprise application support . Success in this role requires close collaboration with platform, data, security, middleware, and application teams to deliver reliable, secure, and scalable solutions while modernizing legacy capabilities.

Responsibilities

API Engineering & Application Development • Design, develop, and maintain   Python‑based REST APIs  that support business‑critical workflows.

• Build APIs using   AWS Lambda and Amazon API Gateway , following API‑first and REST best practices.

• Implement clean, testable, and well‑documented Python code suitable for enterprise production environments.

• Optimize API performance, reliability, scalability, and error handling.

• Ensure proper API versioning, contract stability, and backward compatibility.

Security & Access Management • Implement secure authentication and authorization mechanisms such as   OAuth2, JWT, and IAM‑based access .

• Enforce API security controls including request validation, throttling, rate limiting, and auditing.

• Partner with security teams to ensure APIs meet enterprise security and compliance standards.

Automation & Infrastructure Engineering • Provision and manage AWS infrastructure using   Terraform .

• Create and maintain reusable Terraform modules for: • API Gateway

• Lambda

• IAM roles and policies

• CloudWatch logging and monitoring

• Ensure environment consistency across   DEV, QA, UAT, and PROD .

CI/CD & Operational Excellence • Design and maintain   CI/CD pipelines  for build, test, and deployment of Python APIs.

• Support automated testing, packaging, versioning, and release management.

• Implement observability through   logging, metrics, alerts, and tracing .

• Participate in troubleshooting, root cause analysis, and production support activities.

Cross‑Team Collaboration • Collaborate closely with   application teams, platform engineering, cloud, and security teams .

• Align API design and implementation with enterprise architectural standards.

• Actively contribute to code reviews, design discussions, and technical documentation.

• Promote best practices and a culture of engineering excellence.

Strategic Influence • Influence API engineering standards, patterns, and best practices across the organization.

• Contribute to architectural reviews and modernization efforts.

• Help drive consistent, scalable, and maintainable cloud‑native API solutions.

What Are We Looking For? We are looking for strong collaborators who deliver reliable, secure, and high‑quality API solutions in fast‑paced, team‑oriented environments. Ideal candidates pursue technical excellence, act with integrity, and are motivated to build scalable platforms that enable business growth. We value continuous improvement, curiosity, and individuals who take ownership and pride in their work.

Requirements: • Minimum of 7 years of experience in   s oftware engineering, cloud application engineering, API engineering, platform engineering, or related technical roles.

• Hands-on experience with Python development, REST APIs, AWS services (Lambda, API Gateway, CloudWatch, IAM, S3), and Terraform for Infrastructure as Code.

• Experience developing, validating, supporting, or operating APIs and cloud-native applications in large-scale production environments.

• Experience with CI/CD pipelines, Git-based workflows, automated testing, and deployment automation tools such as Jenkins or GitHub Actions.

• Working knowledge of SQL, data validation, data profiling, system integrations, and enterprise application support.

Core Competencies • API Design Mindset  — builds clean, consistent, and consumer‑friendly APIs.

• Builder Mindset  — emphasizes automation, reuse, and simplicity.

• Systems Thinking  — understands how APIs integrate with distributed systems.

• Collaboration  — works effectively across engineering, security, and platform teams.

• Ownership & Accountability  — takes responsibility for design, delivery, and reliability.

• Bachelor’s degree in   Computer Science, Engineering, or related field (Master’s preferred).

Preferences • Strong understanding of application monitoring, observability, logging, alerting, resiliency, and operational support.

• Experience troubleshooting production issues, conducting root cause analysis, and supporting release and deployment activities.

• Experience collaborating across application, platform, cloud, security, middleware, and data engineering teams.

• Financial services, wealth management, or banking industry experience preferred.

• Strong understanding of authentication, authorization, and secure API design.

• Experience with   OAuth providers and identity platforms.

• Familiarity with   AWS SAM or Serverless Framework (tooling experience).

• Exposure to   event‑driven architectures (EventBridge, SNS/SQS).

• Experience operating APIs in   r

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