Principal .NET Engineer: Scalable FinTech Backend & AI

Cprime, Inc

Los Angeles (CA)

On-site

USD 180,000 - 250,000

Full time

40 hours ago

Be an early applicant

A complete application in a minute

Tailored resume and cover letter, ready to send.

Get past ATS filters

Job summary

Cprime, Inc. is seeking a Principal Software Engineer to join the Firewire team in Los Angeles, focusing on scalable payment processing systems. You will drive technical leadership, build backend services and APIs, and own DevOps pipelines in an AI-enabled SDLC environment.

You will mentor engineers, collaborate with QA, Security, and Infrastructure, and lead initiatives to enhance observability, platform reliability, and secure coding practices across regulated environments.

Qualifications

10+ years of software engineering experience with 2+ years in a technical lead role.
Bachelor’s degree in computer science or related field, or equivalent work experience.
Proficiency in 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 mechanisms, multithreading, and distributed computing.
Knowledge of container orchestration, release automation, and 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 tools like JIRA.
Understanding of secure development processes in regulated environments (PCI DSS, SOC 2)
Methodologies - Agile, Scrum.

Responsibilities

Lead development of backend services and APIs to support Firewire platform operations including release engineering, DevOps pipelines, and system integrations.
Collaborate with QA, Security, and Infrastructure to ensure seamless deployment and performance of Firewire services.
Lead 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.
Implement intelligent testing frameworks that auto-generate test cases, predict bugs, and enable self-healing.
Lead and build test automation frameworks using standard API testing tools for REST-based APIs hosted on Azure cloud.
Lead the creation of test strategy, test planning, and test execution for functional, integration, system, end-to-end testing, accessibility, database validations and automation.