Principal Full Stack Engineer
Job Description:
Tech Lead / Principal Full Stack Software Engineer
The Role
We are currently sourcing for a Tech Lead / Principal Full Stack Software Engineer to work at Fidelity Charitable in Westlake, TX or Merrimack, NH. This role will contribute to enhancing the Charitable Contact Center integration with the Enterprise Contact Center (ECC) to improve service delivery, increase associate efficiency, and enhance satisfaction for our Donors, NPOs, and Advisors. You will work on an Agile team focused on telephony and contact center integration while leveraging your technical expertise.
As a Tech Lead / Principal Full Stack Engineer, you will architect and deliver secure, scalable, and cloud-native applications that integrate with enterprise contact center platforms. You'll lead the design and development of complex features such as intelligent call routing, IVR workflows, and real-time analytics, while ensuring seamless integration with internal associate-facing tools like Salesforce. Collaborating across agile teams, you'll translate strategic business requirements into robust technical solutions, drive API-first development, and champion DevSecOps best practices. This role combines hands-on engineering with technical leadership to elevate donor experiences, optimize operational efficiency, and guide the evolution of platform capabilities.
The Team
We build next-generation technology that empowers our customers to achieve their philanthropic goals. As part of our team, you'll help design and implement innovative solutions that meet functional, performance, scalability, and reliability requirements.
The Expertise You Have
• 8+ years of experience designing and implementing full-stack, customer-facing applications with a focus on scalability, performance, and security.
• Bachelor's or Master's degree in Computer Science, Engineering, or a related field-or equivalent professional experience.
• Deep expertise in Agile methodologies, with a track record of driving engineering excellence and mentoring teams in Scrum environments.
• Advanced proficiency in front-end technologies and frameworks such as Angular (11+), HTML/CSS, JavaScript/TypeScript, and web components.
• Extensive experience with backend development using Java (11+), Spring Boot, and modern open-source frameworks.
• Strong architectural background in building enterprise-grade digital applications using design patterns like MVC, micro frontends, and microservices.
• Proven leadership in designing and implementing RESTful APIs and driving API-first development strategies.
• Expert-level understanding of Git workflows and version control best practices across large-scale engineering teams.
• Hands-on experience with DevSecOps practices and tools including Jenkins (or Jenkins Core), SonarQube, Mend.io, Datadog, GitHub, and related CI/CD pipelines.
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• Deep knowledge of cloud-native development, serverless architectures, and containerization using Docker, Kubernetes, and AWS.
• Commitment to quality-first development with experience in TDD and automation using tools like Mockito, Jasmine, Mocha, JUnit, and others.
• Strong grasp of secure coding standards and application security principles.
• Experience in the financial services domain and familiarity with contact center or telephony platforms is a plus.
• Exposure to Genesys or similar platforms for telephony integration is desirable.
The Skills You Bring
• A passion for crafting exceptional user experiences, backed by deep expertise in functional programming, front-end architecture, and API design patterns.
• Strategic understanding of the web application ecosystem, including modern architectures, performance optimization techniques, and emerging technologies that drive resilient and scalable solutions.
• Strong foundation in computer science principles, data structures, and algorithms, with the ability to apply them to complex engineering challenges and architectural decisions.
• Mastery of Test-Driven Development (TDD), the Test Pyramid, and automation strategies to ensure high-quality, maintainable, and fault-tolerant applications.
• Advanced knowledge of modern engineering practices such as trunk-based development, monorepos, feature toggles, and branch-by-abstraction to foster high-performing, collaborative development environments.
• Exceptional communication and influence skills, enabling effective cross-functional collaboration and alignment with business and technical stakeholders.
• A growth mindset with a demonstrated ability to quickly learn and apply new technologies, frameworks, and industry trends.
• Demonstrated passion for mentoring engineers, shaping cross-team architectural decisions, and driving platform strategy to align with long-term business and technology goals
Certifications:
Category:
Information Technology
Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.
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.
Perks and Benefits
Health and Wellness
- Health Insurance
- Dental Insurance
- Vision Insurance
- Life Insurance
- Short-Term Disability
- Long-Term Disability
- FSA
- HSA
- HSA With Employer Contribution
- Fitness Subsidies
- On-Site Gym
- Pet Insurance
- Mental Health Benefits
- Virtual Fitness Classes
Parental Benefits
- Birth Parent or Maternity Leave
- Non-Birth Parent or Paternity Leave
- Fertility Benefits
- Adoption Assistance Program
- Family Support Resources
- Adoption Leave
Work Flexibility
- Flexible Work Hours
- Remote Work Opportunities
- Hybrid Work Opportunities
Office Life and Perks
- Commuter Benefits Program
- Casual Dress
- Snacks
- Company Outings
- On-Site Cafeteria
- Holiday Events
Vacation and Time Off
- Paid Vacation
- Paid Holidays
- Personal/Sick Days
- Leave of Absence
Financial and Retirement
- 401(K)
- 401(K) With Company Matching
- Company Equity
- Performance Bonus
- Relocation Assistance
- Financial Counseling
- Profit Sharing
Professional Development
- Tuition Reimbursement
- Promote From Within
- Mentor Program
- Shadowing Opportunities
- Access to Online Courses
- Lunch and Learns
- Internship Program
- Work Visa Sponsorship
- Leadership Training Program
- Associate or Rotational Training Program
Diversity and Inclusion
Company Videos
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