Senior Software Engineer - LowerOS Team
About The Position
LowerOS is our modern operating system that powers Lower’s digital mortgage and home finance experiences end to end. Our platform helps borrowers move from first inquiry to clear-to-close with less friction by unifying application, underwriting, and closing tools into a single, cohesive workflow for our sales, operations, and servicing teams. As a Senior Software Engineer on the LowerOS team, you will shape the core services and features that make getting a mortgage feel simple, transparent, and human—so more people can build wealth through homeownership. This is an opportunity to join a fintech company redefining the mortgage industry by combining data-driven insights with thoughtful user experiences. You’ll work on impactful projects, collaborate with a talented team, and help us build scalable systems that directly improve how people achieve one of life’s biggest milestones—owning a home.
Requirements
- 6–11 years of professional experience in software engineering and enterprise-scale web application development (or closely related fields).
- Full-stack expertise with proven ability to deliver high-quality backend and frontend solutions.
- Problem solver and innovator , with a track record of implementing new ideas and tackling complex technical challenges in design and architecture.
- Proficiency in our stack — TypeScript, React, AWS, Next.js, Node.js and Postgres —or the ability to quickly learn new languages, frameworks, and tools.
- Strong computer science foundations , including algorithms, data structures, concurrency, parallelism, asynchronous programming, networking, and system design.
- Excellent communication and collaboration skills —someone who values teamwork, gives and receives feedback constructively, and helps foster a supportive engineering culture.
Nice To Haves
- Prior experience in fintech, lending, or consumer financial products is a plus , but not required.
Responsibilities
- System design & architecture
- Code quality & testing
- Performance optimization
- DevOps & CI/CD
- Security awareness
- Data & APIs
- Tooling & automation
- Stakeholder communication
- Mentorship
- Code review
- Cross-functional collaboration
- Project ownership
- Risk management
- Tradeoff negotiation
- Documentation
- Continuous improvement
- Technical vision
- Innovation
- Quality bar setting
Benefits
- Extended benefit offerings including medical/dental/vision, parental leave, life insurance, short- and long-term disability
- Paid holidays and paid time off
- 401K with company match
- Discount on home mortgage refinances or purchase
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
