Senior Software Engineer II, Lister

Apartment List is a company that helps renters find homes and property partners manage listings on its platform. The Senior Software Engineer II, Lister will own core services and user experiences for the Lister team, building scalable backend systems and full-stack features while partnering with product, design, analytics, and other engineering teams.

Responsibilities:

• Own the design and delivery of scalable backend services that power the Lister experience, from architecture decisions through production reliability
• Drive full-stack feature delivery — from Kotlin/Ruby services to TypeScript/React interfaces — in close partnership with product, design, and analytics
• Shape technical solutions for ambiguous problems, weighing speed against long-term maintainability and making the call
• Partner with engineering teams across Apartment List to keep solutions consistent and cohesive for both renters and property partners
• Raise the technical bar for the team through code reviews, pairing, and design discussions — mentoring engineers earlier in their careers
• Contribute to Lister's technical roadmap, surfacing tradeoffs and opportunities that product and engineering leadership should know about

Requirements:

• Required

• 5+ years of professional software engineering experience in organizations that prioritize quality, scalability, and performance
• Strong grounding in computer science fundamentals — data structures, algorithms, and distributed systems
• Demonstrated experience designing and implementing RESTful APIs
• Experience with relational databases and data modeling
• Working proficiency in at least one of Kotlin, Ruby, or TypeScript, with willingness to build fluency in the others
• Experience working across the stack, from backend services through frontend applications
• Practical experience using AI-assisted development tools (e.g., Copilot, Claude Code, or similar) to speed up real engineering work, with sound judgment about when and how to apply them
• Demonstrated ability to communicate and collaborate effectively with product managers, designers, and analysts

• Nice to Have

• Mentorship experience for other engineers
• Experience with search or recommendation systems
• Experience working in an online marketplace.
• Familiarity with real-time systems, particularly in the context of optimizing latency and performance