Principal Full Stack Engineer

Fidelity
Fidelity

Software Engineering

Durham, NC, USA

Posted on Aug 26, 2026

Job Description:

Note: Fidelity will not provide immigration sponsorship for this position.

Position Description:

Designs and implements batch and real-time data collection solutions using technologies (Python, Event Collection, or similar frameworks). Collaborates with engineering team to define the overall system architecture, ensuring scalability, fault tolerance, and performance optimization. Influences and builds vision with product managers, team members, customers, and other engineering teams to solve complex problems for building enterprise-class business applications. Evaluates trade-offs between correctness, robustness, performance, and customer impact to ensure we build the right solution.

Primary Responsibilities:

  • Uses a systematic approach to plan, create, and maintain data architectures while also aligning with business requirements.
  • Formulates a set of dataset process and store optimized data.
  • Designs and develops generic frameworks for batch and near real-time data ingestion, data quality checks, monitoring and reporting.
  • Works with architects as a subject matter expert of the current application to design new architectures for the projects.
  • Writes Data Modelling standard guidelines for developers and reviews their design and architecture.
  • Automates manual tasks and eliminates manual intervention.
  • Supports and maintains existing data and processes to eliminate gaps in datasets.
  • Supports the building of data flow channels and processing systems to extract, transform, load, and integrate data from various sources.
  • Stores data in unstructured/structured formats, and manages and monitors data.
  • Tracks production processes stability and ensures cost effectiveness and enhancements.
  • Facilitates data cleansing, enrichment, and data quality enhancements.

Education and Experience:

Bachelor’s degree in Computer Science, Engineering, Information Technology, Information Systems or a closely related field (or foreign education equivalent) and five (5) years of experience as a Principal Full Stack Engineer (or closely related occupation) building large-scale data analytics and ML solutions on AWS and Snowflake Cloud Data Warehouse.

Or, alternatively, Master’s degree in Computer Science, Engineering, Information Technology, Information Systems or a closely related field (or foreign education equivalent) and three (3) years of experience as a Principal Full Stack Engineer (or closely related occupation) building large-scale data analytics and ML solutions on AWS and Snowflake Cloud Data Warehouse.

Skills and Knowledge:

Candidate must also possess:

  • Demonstrated Expertise (“DE”) architecting, designing, and building highly scalable Cloud-based Big Data applications according to business user requirements in AWS using S3, EMR, Lambda, Athena, Kinesis, or EKS; maintaining Continuous Integration/Continuous Delivery (CI/CD) pipelines for application code using Jenkins, Stash, or Concourse; developing Unix shell scripts; and creating Control-M jobs to automate and schedule end-to-end processes.
  • DE architecting, designing, and building of real time and near real-time data ingestion frameworks for customer interactions flowing from different channels using AWS Services -- Kinesis (Stream and Firehose), Lambda, EMR, Snowflake Task, and Streams.
  • DE acting as a member of a team responsible for implementing data lake strategies to leverage Snowflake as a platform for structured and semi-structured data; and building and formulating data lake design patterns for data ingestion, processing, and extraction for personalization teams using Snowflake, SQL, Python, data warehousing, or advanced data modeling techniques.
  • DE performing platform migration, including seamlessly transitioning on-premise systems to AWS cloud infrastructure and end-to-end migration planning, execution, and optimization to ensure the full potential of cloud-based environments and modern data warehousing technologies.

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Fidelity’s Onsite Working Model
Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.

Certifications:

Category:

Information Technology

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

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Benefits that balance life and work

From our fully paid parent leave to our on-site health and wellness centers, our benefits support the belief that more balance you have, the better you can achieve your goals.

Benefits

Company overview

Company overview

At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want. We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experience.

Reasonable accommodations

Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process. To initiate a request for an accommodation contact the HR Accommodation Team by sending an email to accommodations@fmr.com, or by calling 800-835-5099, prompt 2, option 3.

Equal opportunity employer

Fidelity Investments is an equal opportunity employer. We believe that the most effective way to attract, develop, and retain a diverse workforce is to build an enduring culture of inclusion and belonging.

Applicant screening

At Fidelity, we value honesty, integrity, and the safety of our associates and customers within a heavily regulated industry. Certain roles may require candidates to go through a preliminary credit check during the screening process. Candidates who are presented with a Fidelity offer will need to go through a background investigation and may be asked to provide additional documentation as requested. This investigation includes but is not limited to a criminal, civil litigations and regulatory review, employment, education, and credit review (role dependent). These investigations will account for 7 years or more of history, depending on the role. Where permitted by federal or state law, Fidelity will also conduct a pre-employment drug screen, which will review for the following substances: Amphetamines, THC (marijuana), cocaine, opiates, phencyclidine.

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