Fidelity Investments

Principal Software Engineer (Python, Oracle, AWS)

Fidelity Investments
US Boston, MA, US
Onsite 2026-06-30
Announced salary
$107,000 - $216,000
Low
$105K
Median
$147K
High
$189K
Market in Boston · BLS OEWS 2025
Estimated net pay
$6,590 - $12,519
/month · 26% withheld
after tax & contributions · Single, no dependents

Job description

### **Job Description:** ### **The Role** You are an experienced engineer with a deep hands\-on experience developing systems and products with a burning desire to deliver software solutions which unlock the capabilities of Generative AI in the context of a professional domain such as finance. You are passionate about this opportunity to help drive and deliver first\-of\-a\-kind knowledge\-based applications for investment professionals. You have prior experience in developing and crafting products using constantly evolving, powerful yet brittle, AI technology. You are comfortable working in a fast\-paced environment where the lag between conceptualization, research, development, and productionization is constantly shortening. You are skilled at working with architecture and engineering stakeholders. You enjoy mentoring junior contributors, helping them grow and learn new skills in today’s engineering field. You are a critical thinker who revels in working as part of a team to deliver the most amount of value in the least amount of time. ### **The Expertise and Skills You Bring** * A Bachelor’s or Master's Computer Science or relevant field, with five years plus of industrial experience. * Proficient in deploying software products into production capable of handling large volumes of data at scale. * Design, develop, and maintain robust, scalable, and secure Python\-based applications and services. * Strong understanding of Python internals, performance tuning, and advanced language features. * Write clean, idiomatic, and well\-documented Python code following PEP8 and enterprise coding standards. * Optimize Python applications for performance, memory usage, and concurrency. * Ability to orchestrate solutions within a cloud based environment * Strong understanding of standard methodologies for large scale application design, SOA, microservices, distributed compute, containers, and use of the cloud. * An understanding of how to deliver into production GenAI app

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