Knock · 1 hour ago
Senior Full Stack Software Engineer - Remote in US
United States
Full-time
Remote
Senior Level
$156K/yr - $185K/yr
5+ years expKnock is redefining the home buying and selling experience, and they’re seeking a Senior Full Stack Software Engineer to develop technology that powers their platforms. The role involves backend-focused development, contributing to full-stack delivery, and collaborating with various teams to create impactful technology solutions.
LendingProperty ManagementPropTechReal EstateResidential
Responsibilities
Design, develop, and maintain backend services, APIs, and data pipelines that power Knock's customer-facing and internal applications — with occasional frontend contributions to support full-stack delivery when needed
Architect and build scalable backend services using Node.js and TypeScript that power Knock's customer-facing and internal applications, ensuring they integrate seamlessly with our frontend experiences
Own end-to-end delivery of complex integration projects, including third-party lending systems and RESTful/RPC APIs, ensuring robust data synchronization, error handling, and seamless service-to-service communication
Own end-to-end delivery of complex integration projects, such as connecting our platform with third-party lending systems, ensuring robust data synchronization and error handling
Contribute to AI-powered features and initiatives, integrating AI services (such as LLMs or ML APIs) to enhance our risk analysis and decision-making capabilities
Collaborate with engineers, product managers, designers, and business partners to create innovative, impactful technology solutions that deliver excellent user experiences
Champion best practices in architecture, security, testing, monitoring, and deployment to ensure our applications are scalable, secure, and reliable throughout the development lifecycle
Provide mentorship, share knowledge, and take initiative on technical challenges — exploring new tools and approaches to support your team across backend architecture, integrations, infrastructure, and beyond
Take initiative on technical challenges, explore new tools and approaches, and support your team wherever your skills can contribute most — from backend architecture and integrations to infrastructure improvements and occasional frontend work
Join a rotating on-call schedule, helping ensure system reliability and rapid response when needed
Qualification
Required
At least 5 years of experience building production-grade software, with at least 3 years writing production-level Node.js code using modern frameworks like Fastify or Express
Backend expertise using TypeScript and Node.js (required) — proven ability to design and implement scalable RESTful and/or RPC-style APIs, integrate with complex third-party systems, and handle data synchronization challenges, API versioning, and error scenarios
Product-minded engineering approach — comfortable working with ambiguous requirements, making pragmatic scope decisions, and designing solutions that truly solve user problems, not just implementing specifications
Can contribute to frontend work when needed — comfortable reading and making changes to React/Next.js codebases, even if frontend development isn't your primary focus
Database proficiency — solid experience with RDBMS and SQL (MySQL or PostgreSQL), including database design, writing and optimizing queries
Solid understanding of software engineering fundamentals and experience across the full development lifecycle — including requirements gathering, development, testing, deployment, instrumentation, monitoring, and ongoing maintenance
Cloud infrastructure experience — familiarity with at least one major cloud provider (AWS preferred) and hands-on experience with services like ECS, RDS, Lambda, S3, CloudWatch, plus CI/CD pipelines and application performance monitoring tools
Belief in creating diverse, equitable, and inclusive practices and programs that will further Knock's commitment to making an impact, learning, putting people first, being open, and courageous
Proven success working 100% remote in prior positions & experience working with a distributed, national team
Preferred
Experience with GraphQL is a plus
Experience integrating AI/ML services into production applications — such as LLM integration (OpenAI, Anthropic), prompt engineering, or building features that leverage AI for ranking, scoring, or decision support (highly desired)
Benefits
Top tier medical, dental, & vision benefits for full time employees starting on the first day of employment
Flexible Paid Time Off for full time employees
Paid parental leave for all full time employees: - 12 weeks paid parental leave for the birthing parent - 6 weeks paid parental leave for the non-birthing parent
One thousand annually for professional development
Life, AD&D and Disability insurance for full time employees
401K (noncontributory by Knock) for all employees
$75 monthly allowance for health & wellness
Up to $400 monthly for a co-working space for eligible employees
$100 monthly allowance for home internet, mobile phone or other communication devices
$2,500 referral bonus for eligible employees
Company
Knock
Knock is a tech-enabled company offering lending solutions for homeownership.
11-50 employees
H1B Sponsorship
Knock has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2022 (4)
2021 (5)
Funding
Current Stage
Growth StageTotal Funding
$754.5MKey Investors
Foundry GroupSecond Century VenturesRRE Ventures
2025-08-26Debt Financing· $100M
2022-03-15Series Unknown· $70M
2022-03-15Debt Financing· $150M
Leadership Team
Sean Black
Co-Founder & CEO
Jamie Glenn
Co-Founder & COO
Recent News
2025-08-11
Business Journals
2024-03-26
Company data provided by crunchbase