Principal Python Engineer

MSIG Holdings USA, Inc.

$140K — $200K *
Enterprise Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8-10 years of professional software engineering experience, focused on Python.
  • Deep understanding of Python frameworks like FastAPI and Flask.
  • Experience building and consuming MCPs and RESTful APIs.
  • Hands-on experience with cloud platforms, preferably Azure.
  • Solid understanding of software design principles, data structures, and algorithms.
  • Experience with unit testing and test automation.
  • Proficient in Git and collaborative development workflows.

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.
  • Optimize application performance, reliability, and scalability.
  • Collaborate with product managers and other engineers to deliver end-to-end solutions.
  • Mentor junior and mid-level engineers through code reviews and technical guidance.
  • Drive improvements in code quality and engineering processes.

Benefits

  • Comprehensive medical, dental, and vision coverage.
  • 401(k) with employer match and profit-sharing contribution.
  • Wellness incentive program.
  • Life and accidental death insurance.
  • Paid time off and charitable leave.
  • Tuition reimbursement program.
Full Job Description

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 onPython
  • Deep understanding of Python frameworks such asFastAPI, Flaskor similar
  • Experience building and consuming MCPs, RESTful APIs(and/or GraphQL)
  • Hands-on experience withcloud platforms- Azure experience preferred.
  • Solid understanding of software design principles, data structures, and algorithms
  • Experience withunittesting, integration testing, and test automation
  • Proficiency withGitand 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 withDocker, Kubernetes, or container orchestration
  • Exposure toevent-driven systems, message queues (Kafka, RabbitMQ)
  • Knowledge ofCI/CD pipelinesand 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 candidates relevant experience, location, and other job-related factors.

Additional Benefits:
Healthcare and Retirement Benefits
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 (ADD) insurance
Flexible spending programs
Short-term and long-term disability plans

Additional Benefit Programs
Paid time off program
Paid charitable leave
Paid parental leave
Tuition reimbursement program
Personal insurance (auto/homeowners) discounts

#LI-HYBRID

#LI-REMOTE, #LI-HYBRID, #LI-ONSITE

Its an exciting time for our company and a great opportunity to join a financially sound and growing global insurance group!  


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