Contract Python Jobs in San Antonio, TX (NOW HIRING)

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.

ResponsibilitiesAPI 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 software 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 regulated or enterprise environments (financial services preferred).
• Knowledge of observability tools such as CloudWatch, Dynatrace, Datadog, OpenTelemetry.
• Experience designing reusable API frameworks or shared libraries.

Pay Range

$106,100.00 - $176,900.00

Actual base salary varies based on factors, including but not limited to, relevant skill, prior experience, education, base salary of internal peers, demonstrated performance, and geographic location.

Benefits

• 401K matching
• Health benefits
• Employee stock options
• Paid time off
• Volunteer time off
• and more

Company Overview

LPL Financial Holdings Inc. (Nasdaq: LPLA) is among the fastest growing wealth management firms in the U.S. As a leader in the financial advisor‑mediated marketplace, LPL supports over 32,000 financial advisors and the wealth management practices of approximately 1,100 financial institutions, servicing and custodying approximately $2.3 trillion in brokerage and advisory assets on behalf of approximately 8 million Americans.

The firm provides a wide range of advisor affiliation models, investment solutions, fintech tools and practice management services, ensuring that advisors and institutions have the flexibility to choose the business model, services, and technology resources they need to run thriving businesses.

For further information about LPL, please visit www.lpl.com. At LPL, independence means that advisors and institution leaders have the freedom they deserve to choose the business model, services, and technology resources that allow them to run a thriving business. They have the flexibility to do business their way. And they have the freedom to manage their client relationships, because they know their clients best. Simply put, we take care of our advisors and institutions, so they can take care of their clients.

Join the LPL team and help us make a difference by turning life’s aspirations into financial realities.

Information on Interviews

LPL will only communicate with a job applicant directly from an @lplfinancial.com email address and will never conduct an interview online or in a chatroom forum.

During an interview, LPL will not request any form of payment from the applicant, or information regarding an applicant’s bank or credit card.

Should you have any questions regarding the application process, please contact LPL’s Human Resources Solutions Center at (855) 575-6947.

EOE.