Senior Software Engineer

Walker & Dunlop

1d • Remote

About The Position

WDTech is Walker & Dunlop's in-house technology team, a group of collaborative and highly skilled technology professionals who are leading experts in real estate data, data science, and technology. WDTech Engineering builds solutions that impact products, people, and processes across the organization, with a commitment to innovation and disrupting the old-fashioned real estate industry. As a Senior Software Engineer, you will help shape the future of the Loan Origination and Servicing platform, which is the digital foundation for how capital is structured and deployed. You will design and build scalable applications and services that power real-time insights and complex financial workflows, delivering high-performance solutions that enable smarter decision-making across the business through strong backend architecture and thoughtful system design.

Requirements

• 6+ years of professional software development experience.
• Bachelor’s degree in Computer Science or a related field (or equivalent practical experience).
• Strong experience building APIs and backend services in Python, including OpenAPI-based service contracts.
• Experience developing and deploying containerized applications in AWS environments, including event-driven architectures.
• Deep proficiency in Python (3.6+) and modern backend frameworks such as FastAPI, with a strong focus on clean, maintainable architecture.
• Strong expertise in SQL databases, including schema design, query optimization, and performance tuning.
• Ability to design efficient, scalable backend systems, including background processing, queues, caching strategies, and scheduled jobs.
• Strong understanding of testing strategies across unit, integration, and end-to-end levels.
• Working knowledge of system design documentation practices, including UML and architectural diagrams.
• Familiarity with event sourcing and/or Domain-Driven Design (DDD) principles.
• Ability to leverage AI-enabled development tools to enhance design, implementation, and testing workflows.
• Demonstrated ownership mindset with a commitment to quality, accountability, and continuous improvement.
• Agile mindset with the ability to work independently, provide early feedback, and adapt to evolving requirements.
• Ability to show ownership of your work, take on challenges and acknowledge growth opportunities, and demonstrate patience when learning new processes.
• Courtesy, respect, and thoughtfulness in teaming with colleagues and other stakeholders.

Nice To Haves

• Experience in real estate finance or financial services preferred.

Responsibilities

• Design, build, and maintain scalable, high-quality applications across new and existing product lines.
• Own features end-to-end — from architecture and development through testing, deployment, and iteration.
• Architect and evolve our core stack (Python, FastAPI, Vue.js, PostgreSQL, Redis, Docker, Kubernetes).
• Translate complex business and product requirements into elegant, reliable technical solutions in collaboration with Product and business stakeholders.
• Drive improvements in performance, reliability, testing, and CI/CD practices.
• Mentor engineers and contribute to a culture of engineering excellence and accountability.
• Perform other duties as assigned.

Benefits

• The opportunity to join one of Fortune Magazine’s Great Places to Work winners
• Comprehensive benefit options that have earned Walker & Dunlop the gold level of the 2025 Cigna Healthy Workforce Designation™, some of which include: - Up to 83% subsidized medical payroll deductions - Competitive dental and vision benefits - 401(k) + match - Pre-tax transit and commuting benefits - A robust health and wellness program – earn cash rewards and gain access to resources that promote health, engagement, and balance - Paid maternity and parental leave, as well as other family paid leave programs - Company-paid life, short and long-term disability insurance - Health Savings Account and Healthcare and Dependent Care Flexible Spending
• Career development opportunities
• Empowerment and encouragement to give back – volunteer hours and donation matching

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 11-50 employees