Principal Software Engineer
Job in
Los Angeles, Los Angeles County, California, 90079, USA
Listed on 2026-09-01
Listing for:
Eliassen Group
Full Time
position Listed on 2026-09-01
Job specializations:
-
Software Development
DevOps, Cloud Engineer - Software, Software Engineer, Backend Developer
Job Description & How to Apply Below
On-site in Los Angeles, CA
Our client seeks a Principal Software Engineer to lead backend services and APIs for a payment processing platform supporting prominent technology partners. The role will drive technical leadership across release engineering, Dev Ops pipelines, observability, reliability, and secure SDLC in an AI-enabled environment.
This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $70.00 to $76.00/hr. w2
JN
-46
Responsibilities:
- Lead development of backend services and RESTful APIs for payment processing at scale.
- Drive release engineering, Azure-based Dev Ops pipelines, and secure SDLC practices.
- Design and optimize distributed, event-driven architectures using queues and messaging.
- Implement observability with Datadog or equivalent, including alerting and incident response.
- Own test automation frameworks and integrate suites into CI/CD.
- Advance CI/CD workflows, platform reliability, and SLA adherence.
- Collaborate with QA, Security, and Infrastructure for seamless deployments.
- Mentor engineers and promote engineering best practices.
- Translate stakeholder requirements into scalable technical solutions.
- Operate in an AI-driven SDLC and implement intelligent testing capabilities.
- 8+ years of software engineering experience with 2+ years as a hands-on technical lead.
- Expertise in C#, .NET, SQL Server, and Azure services such as AKS, Service Bus, App Services, and Azure Dev Ops.
- Strong knowledge of RESTful API design, OAuth2, and microservices.
- Hands-on with queuing, multithreading, and distributed computing using Kafka, Service Bus, or MQ.
- Proven ownership of test automation frameworks beyond unit testing, integrated with CI/CD.
- Observability experience with Datadog or similar tools.
- Experience in payments or financial services with high transaction volume.
- Familiarity with Git Hub Actions and container orchestration.
- Secure coding and compliance in regulated environments such as PCI DSS or SOC 2.
- Experience with Agile methodologies and tools such as JIRA.
- Preferred: fintech environment experience, peer-to-peer payments exposure, stability and release management, open-source or publications, and leadership of scalable platform practices.
- Bachelor's degree in computer science or related field, or equivalent work experience.
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (, ) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position.
All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group's use of these tools, including AI tools, as part of the application and hiring process.
Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:
When you work with Eliassen Group, all email communication will come from an address, never Gmail, Yahoo, etc.
Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.
If you have any indication of fraudulent activity, please contact .
About Eliassen Group:
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life…
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