Senior Software Engineer

Walker & Dunlop; Netherlands; Hybrid; EUR 90,000 - 125,000; Full time

Benefits offered by this job

Flexible hours

Career advancement

Pension scheme

Mental health services

Job summary

Walker & Dunlop is seeking a Senior Software Engineer to shape the Loan Origination and Servicing platform with scalable backend services. You will design, implement, and maintain high-performance systems, collaborating with Product and business stakeholders to deliver real-time insights and robust workflows.

The role requires experience in Python, FastAPI, Vue.js, and containerized deployments in AWS, with a focus on quality, reliability, and continuous improvement.

Qualifications

• 6+ years of professional software development experience.
• Bachelor’s degree in Computer Science or related field (or equivalent).
• Strong experience building APIs and backend services in Python, including OpenAPI-based contracts.
• Experience deploying containerized apps in AWS with event-driven architectures.

Responsibilities

• Design, build, and maintain scalable applications across product lines.
• Own features end-to-end from architecture to deployment and iteration.
• Architect and evolve our core stack (Python, FastAPI, Vue.js, PostgreSQL, Redis, Docker, Kubernetes).
• Translate business requirements into reliable technical solutions with stakeholders.
• Improve performance, reliability, testing, and CI/CD practices.
• Mentor engineers and foster engineering excellence and accountability.
• Perform other duties as assigned.

Skills

Python

FastAPI

Vue.js

PostgreSQL

SQL

APIs

OpenAPI

AWS

DDD

Education

Bachelor's degree in Computer Science

Tools

Docker

Kubernetes

OpenAPI

AWS

Job description

Department: WDTech - R&D

We are Walker & Dunlop. We are one of the largest providers of capital to the commercial real estate industry, enabling real estate owners and operators to bring their visions of communities — where people live, work, shop, and play — to life. We are committed to creating meaningful social, environmental, and economic change in our communities.

Department Overview

WDTech is W&D’s in-house technology team – a group of collaborative and highly skilled technology professionals, all of whom are leading experts in real estate data, data science, and technology.

WDTech Engineering builds solutions that impact not only our products but also the people and processes across our organization. A commitment to innovation and a passion for disrupting the old-fashioned real estate industry are our highest priorities.

The Impact You Will Have

As a Senior Software Engineer, you will help shape the future of our Loan Origination and Servicing platform — 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. By combining strong backend architecture with thoughtful system design, you will deliver high-performance solutions that enable smarter decision-making across the business.

Primary 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.

Education and Experience

• 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.
• Experience in real estate finance or financial services preferred.

Knowledge, Skills and Abilities

• 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.

What We Offer

• Agile working environment with flexible working hours and location, career advancement, and competitive compensation package.
• We are a family friendly company.
• We arrange social activities to help our employees and families become familiar with each other and our culture.
• In addition to other benefits, we offer a pension scheme and 100% complimentary and confidential mental health services.

EEO Statement

We are committed to equity in all steps of the recruitment and employment experience.

We believe in equal access to opportunities in our workplace.

We do not tolerate discrimination, including harassment, based on any characteristic protected by applicable law, such as race, color, national origin, religion, gender identity, sexual orientation, sex, age, disability, veteran or military status, and genetic information, or any other characteristic protected by applicable law.

We strive to be a safe place to ask questions, build professional relationships, and develop careers.