Principal Python Engineer

MSIG USA; New Jersey; On-site; USD 140,000 - 200,000; Full time

Benefits offered by this job

Healthcare coverage

401(k) matching

Paid time off

Tuition reimbursement

Job summary

MSIG USA is seeking an experienced Software Engineer to design and implement Python-based agents for enterprise AI. This role involves backend development, technical design discussions, and optimizing performance within a collaborative team environment.

The ideal candidate has 8-10 years of software engineering experience and a strong understanding of Python frameworks. The position offers a competitive salary range and comprehensive health and wellness benefits.

Qualifications

• 8-10 years of professional software engineering experience with a focus on Python.
• Deep understanding of Python frameworks such as FastAPI or Flask.
• Hands-on experience with cloud platforms, preferably Azure.
• Solid understanding of software design principles and data structures.

Responsibilities

• Design, develop, and maintain scalable backend systems and APIs using Python.
• Lead technical design discussions and contribute to system architecture decisions.
• Write clean, testable, and well-documented code following best practices.
• Collaborate with cross-functional teams to deliver end-to-end solutions.

Skills

Python programming

API development

Collaboration and communication

Cloud platforms

Tools

FastAPI

Flask

Docker

Kubernetes

Job description

MSIG USA continues to grow!

Company Overview

MSIG USA is the US-based subsidiary of MS&AD Insurance Group Holdings, Inc., one of the world’s top P&C carriers and a global Class 15 insurer, with A+ ratings and a reach that spans 40+ countries and regions. Leveraging our 350-year heritage, MSIG USA brings the financial strength, expertise, and global footprint to offer commercial insurance solutions that address your business’s unique risks.

Role Overview

Join us at the forefront of enterprise AI, building intelligent agentic systems that reason, plan, and take action across complex business workflows. You will design and implement Python-based agents that orchestrate models, tools, and data to automate real‑world decision‑making at scale. This role blends deep engineering with cutting‑edge AI—working on everything from agent frameworks and APIs to safety, observability, and performance. If you are excited about shaping how autonomous systems operate in production, this is where you’ll make a tangible impact.

Key Responsibilities

• Design, develop, and maintain scalable backend systems and APIs using Python.
• Lead technical design discussions and contribute to system architecture decisions.
• Write clean, testable, and well‑documented code following best practices - also with assistance of LLM.
• Optimize application performance, reliability, and scalability.
• Collaborate with product managers, designers, and other engineers to deliver end‑to‑end solutions.
• Mentor junior and mid‑level engineers through code reviews, pairing, and technical guidance.
• Drive improvements in code quality, tooling, CI/CD, and engineering processes.
• Participate in on‑call rotations and troubleshoot production issues when needed.

Required Qualifications

• 8-10 plus years of professional software engineering experience, with strong focus on Python.
• Deep understanding of Python frameworks such as FastAPI, Flask or similar.
• Experience building and consuming MCPs, RESTful APIs (and/or GraphQL).
• Hands‑on experience with cloud platforms - Azure experience preferred.
• Solid understanding of software design principles, data structures, and algorithms.
• Experience with unit testing, integration testing, and test automation.
• Proficiency with Git and collaborative development workflows.
• Strong communication skills and ability to work in cross‑functional teams.

Preferred Qualifications

• Experience with designing and building agentic platforms.
• Experience with microservices architecture.
• Familiarity with Docker, Kubernetes, or container orchestration.
• Exposure to event‑driven systems, message queues (Kafka, RabbitMQ).
• Knowledge of CI/CD pipelines and DevOps best practices.
• Experience working in high‑scale, production environments.
• Prior experience mentoring or leading engineers.

Salary

The estimated salary range for this position is $140,000.00 - $200,000.00 per year. This is a good‑faith assessment of the salary range for this position only. In determining the actual salary within this range, MSIG USA will consider a candidate’s relevant experience, location, and other job‑related factors.

Additional Benefits

• Healthcare and retirement benefits including comprehensive medical, dental, and vision coverage.
• 401(k) with a generous employer match and profit‑sharing contribution.
• Wellness incentive program.
• Life and accidental death and dismemberment (AD&D) insurance.
• Flexible spending programs.
• Short‑term and long‑term disability plans.
• Paid time off program.
• Paid charitable leave.
• Paid parental leave.
• Tuition reimbursement program.
• Personal insurance (auto/homeowners) discounts.

It is the policy of MSIG USA to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, MSIG USA will provide reasonable accommodations for qualified individuals with disabilities.