> Markdown version of [/jobs/ext/265724-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/265724-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** FIDELITY LLC - **Location:** Jersey City, NJ, United States - **Experience:** Expert - **Salary:** $156,000.0 - $176,800.0 - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Amazon Web Services, Amazon S3, Cloud Computing, Continuous Integration, Data Architecture, Linux, DevOps, Distributed Systems, Groovy, Python (Programming Language), Machine Learning, Performance Tuning, Software Engineering, Enterprise Data Management, Scripting, Enterprise Software Applications, Cloud Platform System, Cloudformation, Git Flow, Information Technology, Deployment Automation, Free and Open-Source Software, Terraform, Jenkins - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=1d9ea6c9215929e6 ## About the Role * Bachelor's degree, Controller's degree, or equivalent experience in Computer Science, Software Engineering, or a related field is required. You should have 8+ years, typically 10+, of experience building and operating production platforms at scale. * Deep software engineering expertise in Python and distributed systems, with a proven track record of building production-grade services. Proficiency in Linux and scripting are required. Familiarity with Java or Groovy is a plus. * Cloud platform leadership (AWS)-hands-on with S3, Lambda, Batch, and more. * Experience with DevOps and continuous integration/delivery at scale, including Jenkins and Git-based workflows. * Expertise in Infrastructure as Code (CloudFormation, Terraform/OpenTofu) and platform reliability engineering. * ML enablement in production, including model packaging, deployment strategies, performance tuning, and observability. * Cross-org technical leadership: mentoring engineers and driving systemic improvements. ## Description As a Principal Software Engineer on the Enterprise AI/ML Platform team, you will tackle complex technical challenges in delivering machine learning at enterprise scale. You will develop, build, and improve platform capabilities that are reliable, secure, and cost-efficient. This role lets you work closely with multiple teams to implement practical and robust solutions widely used in production., * Set platform strategy and standards for ML packaging, deployment, serving, and observability-driving consistent adoption across squads and business units. * Partner with Data Scientists to package, scale, and operationalize models; define the APIs, guardrails, and automation that take work from experimentation to reliable production. * Enable secure, scalable access to traditional and generative models by collaborating with platform and application engineers to integrate through enterprise gateways and services. * Advance model/data observability-tooling for data and feature drift detection, prediction-quality monitoring and uncertainty signals, and automated diagnostics/explainability. * Lead cross-platform incident response and post-mortems, drive systemic fixes, and evolve standards to prevent recurrence-across applications and the platform. * Uplevel engineering velocity by introducing reusable frameworks, paved paths, and CI/CD templates that simplify integration, reduce toil, and improve reliability at scale. * Reduce cost and complexity across the ML ecosystem through pragmatic technology choices, clear abstractions, and a long-term platform roadmap. ## Related Videos - [Reliable scalability: How Amazon.com scales on AWS](https://www.wearedevelopers.com/videos/983-reliable-scalability-how-amazon-com-scales-on-aws) - [Give your build some love, it will give it back!](https://www.wearedevelopers.com/videos/514-give-your-build-some-love-it-will-give-it-back) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [#90DaysOfDevOps - The DevOps Learning Journey](https://www.wearedevelopers.com/videos/548-90daysofdevops-the-devops-learning-journey) - [AI-Native Enterprise Platforms: Interpreting Logic, Not Compiling Code](https://www.wearedevelopers.com/videos/1975-ai-native-enterprise-platforms-interpreting-logic-not-compiling-code) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)