Principal Software Engineer (C#, .NET, SQL, Azure, DevOps, RestAPI)

Job Title: Principal Software Engineer

Location: West Los Angeles, CA

Worksite: Hybrid

About WCT

WCT is a global talent solutions partner committed to delivering high-impact technology and engineering talent to some of the world’s most innovative companies. As a WCT employee, you’ll be part of a dynamic, growth-oriented culture that values collaboration, continuous learning, and excellence in execution.

Job Summary

We are seeking a Princ. Software Engineer to join the Firewire team, focusing on building scalable, secure, and resilient payment processing systems behind some of Americas most prominent technology companies. This role will drive technical leadership and innovation in Firewire engineering team, aligning with client best practices.

Job Responsibilities

• Analyzes, designs, programs, debugs, and modifies software enhancements and/or new products used in local, networked, cloud-based or Internet-related computer programs. Code may be used in commercial or end-user applications, such as materials management, financial management, HRIS, mobile apps or desktop applications products. Using current programming language and technologies, writes code, completes programming, and performs testing and debugging of applications. Completes documentation and procedures for installation and maintenance. May interact with users to define system requirements and/or necessary modifications.
• Lead development of backend services and APIs to support Firewire platform operations including release engineering, DevOps pipelines, and system integrations.
• Collaborate with cross-functional teams including QA, Security, and Infrastructure to ensure seamless deployment and performance of Firewire services.
• Lead technical initiatives to improve CI/CD workflows, observability, and platform reliability.
• Implement monitoring and alerting solutions to ensure SLA adherence and rapid incident response.
• Mentor junior engineers and contribute to engineering best practices across the Firewire domain.
• Partner with business stakeholders to translate platform requirements into scalable technical solutions.
• Operate in an AI driven SDLC environment and familiarity with AI code assistants like GitHub Copilot or similar tools.
• Implement intelligent testing frameworks that auto-generate test cases, predict bugs, and enable self-healing.
• Leads and builds test automation frameworks using Standard API testing tools for rest-based APIs hosted on Azure cloud.
• Integrate test suites into CI/CD pipelines
• Leads the creation of test strategy, test planning, and test execution related to all aspects of testing like functional, integration, systems, end-to-end testing, accessibility, database validations and automation.

Qualifications

• 8+ years of software engineering experience, with 2+ years in a technical lead role.
• Bachelors degree in computer science or related field, or equivalent work experience acceptable.
• Proficiency in several languages/platforms/libraries such as C#, .NET, SQL Server, and Azure Cloud solutions.
• Strong understanding of RESTful API design, OAuth2, and microservices architecture.
• Familiarity with DevOps tools such as GitHub Actions.
• Strong understanding of Queuing mechanism, multithreading/Multi-Tasking, Distributed computing.
• Knowledge of container orchestration, release automation, and platform observability tools (e.g., Datadog).
• Experience implementing secure coding practices and compliance workflows in regulated environments.
• Strong analytical, multitasking, and organizational skills to manage testing on multiple projects.
• Experience with Agile methodology and concepts using JIRA or similar Agile tools.
• Understanding of secure development processes in regulated environments (e.g. PCI DSS, SOC 2)
• Methodologies- Agile, Scrum

Preferred Qualifications

• Experience in fast paced fintech organization.
• Familiarity with peer-to-peer payment processing domains, stability and release management experience.
• Contributions to open-source projects or technical publications.
• Demonstrated leadership in building scalable platform engineering practices.

Compensation / Salary Range: The typical pay range for this role is: USD $65/Hourly - $75/Hourly. Factors that may affect pay within or outside of this range may include but not limited to geography/market, skills, education, experience, and other qualifications of the successful candidate.

WCT will accept applications and processes offers for these roles until the role is filled.

Equal Employment Opportunity Declaration:

WCT is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.