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Senior Software Engineer BaaS Team

WinMax Systems CorporationLos Angeles, CA🇺🇸United StatesPosted 13 Jul 2026

Quick Overview

Salary
$75 - $82/hr
Work Type
Hybrid
Level
Mid Senior

Job Description

Senior Software Engineer BaaS Team
Location: Los Angeles, CA (Resource must be located in the W. Los Angeles, CA area as this is a temp-to-possible hire opportunity)
Contract: 7+Months
 
 
Job Description:
We are seeking a highly skilled and motivated Senior Software Engineer to join our BaaS team, supporting partner onboarding and BaaS platform enhancement initiatives.  This role will be instrumental in building and supporting scalable, secure, and high-performance systems that enable embedded financial services across our partner ecosystem. 
 
Key Responsibilities 
  •  Design and develop APIs and microservices that support BaaS onboarding and partner integration. 
  •  Collaborate with product managers, architects, and other engineering teams to define technical     requirements and deliver robust solutions. 
  • Support engineering excellence through code reviews, mentoring, and best practices in CI/CD, testing, and observability. 
  • Ensure compliance with SLA standards and contribute to the development of monitoring and alerting systems. 
  • Contribute to incident response and root cause analysis to improve system reliability. 
  •  Draft architectural and design documentation to assist design options analysis and decision making. 
  •  Evaluate emerging technologies from applicability to feasibility to adoption paths. 
  •  Refactor and extend the existing codebase to fix defects and add features/functionality 
  •  Create systems that are durable and flexible by developing for change favor configurability over customization. 
Skills/Experience:    
Technical Qualifications :
  • 5+ years of experience in software engineering, with at least 1 year in a technical leadership role. 
  • Strong portfolio of work showing experience developing secure and standards-compliant code across multiple platforms. 
  • Fluent in several of the following languages/platforms/libraries: C#, .NET, SQL, and hands-on experience with cloud platforms (Azure native services such as APIM, Azure SQL, Cosmos DB and Key Vault), container technologies, and caching frameworks. 
  • Solid understanding of RESTful API design, OAuth2, and OpenAPI specifications. 
  • Familiarity with event-driven (Service Bus, Event Hubs) and microservice based architecture patterns. 
  • Hands-on experience with leveraging and implementing observability dashboards and platforms (Datadog, Grafana). 
  • Ability to handle a fast-paced environment for iterative project turnarounds on mission & revenue critical, customer-facing applications 
  • Deep knowledge in Git, DevOps, Agile Scrum, and security best practices in financial services and compliance standards (PCI DSS, SOC 2). 
Preferred Qualifications:
  •    Prior experience in fintech or embedded finance platforms. 
  •    Familiarity with partner onboarding workflows and SLA management. 
  •    Contributions to open-source projects or technical publications. 
Must have:
  • Fintech Experience
  • Back-end C# development experience
  • Azure experience
  • Cloud environment experience
​​​​​​​
Pay Transparency: "The expected pay range for this position is $75.00–$82.00 per hour. Final compensation will be determined based on experience, skills, and qualifications. Non-exempt employees are eligible for overtime. Full-time employees are eligible to select from different benefits packages. Packages may include medical, 401(k) without employer match. Paid Sick leave is provided based on state or local laws."

Skills

Microservices
SQL
PCI DSS
SOC 2
Scrum
Agile
Azure
C#
Datadog
.NET
Git
Grafana
Vault

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