Senior Software Engineer

Fidelity • Westlake, TX

1d

About The Position

Build desktop user experiences and underlying platforms that support Fidelity’s digital presence, including applications and platforms such as Active Trader Pro and Fidelity Trader+®. Work on end-to-end features within autonomous, cross-functional teams and contribute to features from concept through deployment. The role offers opportunities to contribute product ideas, develop skills, and learn new technologies and languages in a collaborative, iterative, fast-paced environment. The position supports Fidelity’s digital experience for customers using financial planning, investing, and retirement solutions.

The role calls for product-aware engineers who are curious, responsible, self-starting, and motivated to deliver an excellent customer experience. Engineers are expected to take ownership, share knowledge, use customer feedback and data to guide decisions, and contribute to a culture of autonomy and leadership. Fidelity is transitioning toward a full-time onsite working model through a phased regional and role-based rollout; current onsite expectations vary, and may evolve. Fully remote roles are not subject to this transition. Fidelity will not provide immigration sponsorship for this position.

Requirements

• Expertise in .NET/C#/XAML-based applications is desired.
• Strong knowledge of HTTP-based APIs, networking, and how the internet works.
• Experience with desktop application frameworks such as WPF, Xamarin.Forms, or .NET MAUI.
• Experience with Azure DevOps or GitHub repositories, pipelines, and tools.
• Experience tuning performance and managing memory utilization in desktop applications.
• Comfort with visual design and rapid prototyping.
• Expertise with one IDE, such as Visual Studio, VS Code, WebStorm, or Rider.
• Experience with unit testing and automation tools or frameworks such as MS Unit, NUnit, or xUnit.
• Knowledge of API design and development and microservices architecture.
• Knowledge of DevOps, automated testing, and continuous delivery.
• Strong communication skills and technical expertise to drive and participate in meaningful discussions.
• Passion for technology, curiosity, adaptability, and willingness to share knowledge.
• Knowledge of algorithms, data structures, and design patterns.
• Experience working in collaborative, iterative, and fast-paced environments.
• Ability to work as a self-starter, challenge the status quo, and take ownership of projects.

Responsibilities

• Build desktop user experiences and the underlying platforms that support Fidelity’s digital presence.
• Develop end-to-end features as part of autonomous, cross-functional teams, contributing from concept through deployment.
• Create rapid prototypes that can be shipped and evaluated using real-life feedback.
• Contribute ideas to improve products and deliver a strong customer experience.
• Use CI/CD practices and tools to deploy changes rapidly while minimizing risk, including practices such as A/B tests, blue-green deployments, and feature toggles.
• Build highly scalable systems capable of supporting thousands of transactions per second.
• Apply test-first development and modern testing frameworks, treating quality as a shared responsibility.
• Measure, collect, and use data to inform decisions, while balancing data with intuition.
• Participate in technical discussions, communicate effectively, take ownership, and share knowledge.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed