Sr Applications Engineer Jobs in Reston, VA (NOW HIRING)

Since 1983, Aristotle has been a leader in developing technology and harnessing data used in political campaigns at every level-from local races to the White House. Our flagship platform, Campaign Manager, is the only fully integrated, three-in-one campaign relationship management solution, supporting compliance, fundraising, and financial reporting. We also offer industry-leading data products, including the National Voter File, National Donor File, National Consumer File, and New Mover File-each enriched with over 1,000 demographic attributes to enable precise targeting and better outcomes. 

We are seeking a highly experienced Senior Web Applications Engineer to serve as a technical leader within our Software Development team. This role will own the design, architecture, and delivery of key features and platform capabilities, guiding solutions from concept to production. The ideal candidate will bring deep technical expertise, strong architectural judgment, and proven leadership experience, helping shape the future of our platform while mentoring others and driving best practices across the organization. 

This role is responsible for leading the full lifecycle of feature development-from collaborating on requirements and designing optimal technical solutions to implementation, deployment, and long-term maintenance. The Senior Web Applications Engineer will serve as a technical owner, making architectural decisions that ensure scalability, security, and maintainability while aligning with business needs. This position also plays a key leadership role, guiding a small Agile team, mentoring engineers, and partnering closely with Product, QA, and stakeholders to ensure high-quality delivery. Additionally, this role will drive modernization initiatives, including API integrations, cloud migration efforts, and the adoption of emerging technologies such as AI-powered solutions. Day-to-day responsibilities include:

• Hands on day to day development  of Web Applications, Web Services, Windows Services(background jobs), Third Party API integration and Microservices using .NET, Angular and SQL Server technologies.
• Architect and design scalable, maintainable and secure systems,
• Provide production support and troubleshoot complex issues when needed.
• Collaboration with cross-functional teams - Product, QA and other stakeholders.  
• Mentor and champion team members for code quality, performance, security and industry best practices.

Requirements

• Minimum 5 years of professional software development experience.
• Bachelor's degree in computer science or related field required.
• Minimum 2 years of experience leading a team - full feature development from design through production delivery.
• Strong hands-on development experience with Microsoft .NET, ASP.NET, C#, Angular and MS SQL Server. 
• Extensive experience writing and debugging complex stored procedures.
• Strong communication skills and ability to collaborate cross-functionally.
• Experience building and maintaining RESTful APIs.
• Familiarity with CI/CD pipelines and modern DevOps practices. 

Preferred Qualifications 

• 8+ years of professional software development experience.
• Experience migrating on-premise applications to cloud environments (Azure, AWS, or GCP).
• Familiarity with identity and authentication systems.
• Experience working with Microservices architectures.
• Experience working with Financial and Compliance heavy applications.
• Knowledge of QA automation frameworks such as Playwright.
• Experience applying AI or automation to software products or development workflows.  

Salary Range: $140k-$175k per year 

This is a flexible hybrid role designed to support both focused remote work and meaningful in-person collaboration. We are seeking a local candidate who can join us in the office approximately 2-3 days per week during the first 3-6 months to build relationships, onboard effectively, and gain deeper context into our platform and teams. After that, in-office presence typically transitions to once per month, with flexibility based on project needs. 

Our office is in the heart of Capitol Hill, just steps from the Capitol South Metro, surrounded by great restaurants, cafes, and the energy of Washington DC. We foster a vibrant, collaborative in-office culture, and we host catered team lunches every Wednesday to bring everyone together. While we value the flexibility of remote work, we believe in-person time strengthens collaboration, creativity, and connection. 

Benefits

All positions are Full-Time, with competitive compensation, medical benefits, paid vacation, 401k plan and stock options. Casual dress code and a non-corporate atmosphere make this a fun place to work and learn in a team environment. Please visit our website at www.aristotle.com.