Principal Engineer – Python API Development

Fidelity is hiring a Principal Engineer – Python API Development in Jersey City, Hudson County, US. Lead the design and delivery of enterprise‑scale AI/ML platform services, focusing on Python‑based APIs, model serving, and observability.

Key Responsibilities

• Architect, develop, and maintain high‑performance Python APIs for model packaging, deployment, and lifecycle management.
• Design secure, scalable, and cost‑efficient platform components that support thousands of concurrent ML workloads.
• Implement monitoring, logging, and tracing solutions to ensure end‑to‑end observability.
• Collaborate with data scientists, product managers, and infrastructure teams to translate business requirements into technical specifications.
• Drive best practices in code quality, testing, CI/CD pipelines, and documentation.
• Mentor senior engineers and contribute to the technical roadmap of the Enterprise AI/ML Platform.

Required Qualifications

• 10+ years of professional software engineering experience, with at least 5 years focused on Python API development.
• Deep expertise in RESTful, gRPC, or GraphQL services and micro‑service architectures.
• Strong background in containerization (Docker, Kubernetes) and cloud platforms (AWS, GCP, Azure).
• Hands‑on experience with ML model serving frameworks (TensorFlow Serving, TorchServe, MLflow, etc.).
• Proven ability to design secure, high‑throughput systems and implement observability tooling.
• Excellent problem‑solving skills and ability to work across distributed teams.

Preferred Experience

• Experience with AI/ML pipelines, data engineering, or model governance.
• Familiarity with infrastructure‑as‑code tools (Terraform, CloudFormation).
• Knowledge of performance profiling and optimization techniques.

Compensation & Benefits

Salary range: $107,000 – $216,000 annually. Fidelity offers comprehensive health, dental, vision plans, 401(k) match, generous paid time off, and professional development resources.

Location

Jersey City, Hudson County, New Jersey, United States – hybrid work model with on‑site collaboration days.

Frequently Asked Questions

Do I need a visa to work at Fidelity in Jersey City?

Fidelity does not provide immigration sponsorship for this role; candidates must already have work authorization in the US.

What Python experience is required for this position?

At least 5 years of professional experience building and scaling Python APIs, including RESTful or gRPC services and cloud deployment.

Is remote work allowed?

Fidelity offers a hybrid model – you’ll work on‑site in Jersey City for collaboration days and can work remotely on other days.