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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer/Developer - **Company:** Fmr LLC - **Location:** Merrimack, NH, United States (Remote available) - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Data Analysis, Software Applications, Microsoft Azure, Cloud Computing, Information Systems, Continuous Integration, Information Engineering, Extract Transform Load (ETL), Data Visualization, DevOps, Distributed Data Store, Django Web Framework, Python (Programming Language), Messaging Application Programming Interface, NumPy, Power BI, Solution Deployment Descriptor, System Testing, Systems Integration, Tableau (Software), Management of Software Versions, Web Applications, Web Application Frameworks, Flask (Web Framework), Snowflake, Apache Spark, Software Application Programming, Backend, Git, Fastapi, Pandas, Event Driven Architecture, Matplotlib, Data Lakes, Information Technology, Apache Kafka, Tools for Reporting, Functional Programming, Jenkins, Oracledb - **Published:** November 6, 2026 - **Apply:** https://www.themuse.com/jobs/fidelityinvestments/principal-software-engineerdeveloper-a58b97 ## About the Role 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 Software Engineer/Developer (or closely related occupation) designing, developing and supporting backend systems using Python for high-performance data storage and retrieval in Cloud platforms (AWS or Azure). 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 Software Engineer/Developer (or closely related occupation) designing, developing and supporting backend systems using Python for high-performance data storage and retrieval in Cloud platforms (AWS or Azure). Skills and Knowledge: Candidate must also possess: * Demonstrated Expertise designing and developing backend systems and Application Programming Interfaces (APIs) using Python and modern frameworks (FastAPI and Flask); and integrating Delta Lake architectures to ensure scalable, reliable, and high-performance data storage and retrieval across Cloud platforms., * Demonstrated Expertise designing and implementing distributed data lake house and advanced data engineering pipelines using Apache Spark, Delta Lake, Snowflake, and Cloud-native tools on AWS or Azure; and enabling data movement workflows using message-based frameworks (Kafka) and data versioning best practices. * Demonstrated Expertise performing analysis and developing applications using Python data libraries (Pandas and Numpy); visualizing data using python libraries (matplotlib); performing data analysis and visualization using reporting tools (PowerBI or Tableau); and querying using Oracle DB. * Demonstrated Expertise applying Agile methodologies, and deploying and providing technical support to applications, using DevOps CI tools -- GIT, Jenkins or Azure DevOps. #PE1M2 ## Description Develops and maintains comprehensive test automation frameworks that span unit, component, integration, and system testing, using Continuous Integration and Continuous Delivery (CI/CD) pipelines. Builds Web applications using Flask and Django. Performs solution deployment and maintenance, using Amazon Web Services (AWS) or Azure Cloud environments, DevOps practices, and CI/CD workflows. Performs system design and messaging integration, using event-driven architecture, functional programming paradigms, emerging technologies, and messaging frameworks (Kafka and EMS). Uses business knowledge to translate the vision for divisional initiatives into business solutions by developing complex or multiple software applications and conducting studies of alternatives. Analyzes and recommends changes in project development policies, procedures, standards, and strategies to development experts and management., * Participates in architecture design teams. * Defines and implements application-level architecture. * Develops applications on complex projects, components, and subsystems for the division. * Recommends development testing tools and methodologies and reviews and validates test plans. * Responsible for QA readiness of software deliverables. * Develops comprehensive documentation for multiple applications or subsystems. * Establishes full project life cycle plans for complex projects across multiple platforms. * Responsible for meeting project goals on-time and on-budget. * Advises on risk assessment and risk management strategies for projects. * Plans and coordinates project schedules and assignments for multiple projects. * Acts as a primary liaison for business units to resolve various project/technology issues. * Provides technology solutions to daily issues and technical evaluation estimates on technology initiatives. * Advises senior management on technical strategy. * Mentors junior team members. * Performs independent and complex technical and functional analysis for multiple projects supporting several divisional initiatives. * Develops original and creative technical solutions to on-going development efforts.