Senior Software Engineer (Backend) - Remote in US at Knock

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Full Time

Start Date

Immediate

Expiry Date

15 Apr, 26

Salary

185000.0

Posted On

15 Jan, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Node.js, TypeScript, RESTful APIs, GraphQL, AI Integration, Frontend Development, Database Design, SQL, Cloud Infrastructure, AWS, ECS, RDS, Lambda, S3, CI/CD, Monitoring Tools

Industry

Real Estate

Description

Knock is redefining the home buying and selling experience, and we’re only getting started! We’re a passionate team of industry experts who knew there had to be a better, simpler way for people to navigate the journey between homes. That people-first mindset is core to how we operate, and why Knock has been honored as one of Inc.’s Best Workplaces six times in the past seven years. We bring that mindset into the work we do every day. The Knock Bridge Loan™ empowers homebuyers to ‘buy before they sell’, by unlocking the equity in their current home, giving them greater convenience, certainty, and competitiveness. Founded in 2015, Knock has grown into a trusted partner for thousands of homebuyers and a network of 60,000+ loan officers and agents across the country. Backed by top investors like Foundry Group, Trinity Capital, and the National Association of Realtors, we’ve built a reputation for innovation and trust, earning 900+ five-star Zillow and Trustpilot reviews and an A+ BBB rating. Join our growing team and help shape the future of homebuying! To learn more, visit Knock.com Senior Software Engineer (Backend) 👋 As a Senior Software Engineer, you will play a key role in developing the technology that powers Knock.com and the platforms supporting our customers, partners, and internal teams. Your contributions will directly impact our ability to deliver a seamless, world-class experience. This position is primarily backend-focused but requires strong expertise across the full stack. What You’ll Do: ✅ 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. What You Bring: 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. 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). 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. We encourage you to apply even if you don't have every listed requirement. 🖥️ Physical Requirements Set up and constantly operate a computer Communicate and exchange accurate information to others via telephone or internet video applications The candidate must be able to perform the essential functions of the job, with or without reasonable accommodation. 💵 Compensation and Benefits Our Compensation Philosophy: As a fully remote (U.S.-based) workforce, our goal is to ensure that all Knockstars are fairly compensated. Please note that the salary range information that follows is a good faith estimate for this position: $156,000 - $185,000 USD. This job posting expires on March 31, 2026. 💼 Offer & Employment Terms The actual offer, reflecting the total compensation package & benefits, will be at the company’s sole discretion, and determined by factors including but not limited to years of experience, job level, geographic location, and other relevant business considerations. The company also reserves the right to amend or modify this job description, employee perks, and benefits at any time. Employees eligible for bonus and/or commission will be provided details in the offer letter. ❓Why Knock 💡 Purpose-Driven Work: Your contributions will improve the homeownership journey for thousands of individuals and families. 🏡 Remote-First Flexibility: Work from anywhere in the U.S. with a flexible, people-first approach. 💙 Innovative Culture: Collaborate with curious, talented colleagues in a supportive, growth-oriented environment. To learn more about the culture at Knock, view our POPSICLE values. 🌎 Commitment to Inclusion: We are dedicated to creating diverse teams and an inclusive, respectful culture where everyone belongs. 🎉 Enjoying Life & Making an Impact 🪴 Since our founding in 2015, Knock has and continues to offer a 100% remote work culture 🏥 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 ⚖️ Equal Opportunity Employer Knock provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, gender, gender identity, gender expression, national origin, ancestry, age, physical or medical disability, medical condition, marital status, sexual orientation, genetic information, military and/or veteran status, or any other basis prohibited by applicable US federal, state, or local laws. 🛑 Internal Applicants If you are a current employee, do not apply here - please navigate to our Internal Job Board in Greenhouse to apply to our open roles. 🌎 Remote Culture & Company Mission We are proud to be a remote, distributed company with employees across 17 states and counting. This is an amazing opportunity to be an integral part of building a multi-billion dollar consumer brand in an industry that is long overdue for a new way of doing things. You will be working with a passionate team that is disrupting the status quo. Knock, and its subsidiaries, are committed to creating a diverse, inclusive, and equitable environment and are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity, gender expression, national origin, ancestry, age, physical or medical disability, medical condition, marital status, sexual orientation, genetic information, military and/or veteran status, or any other basis prohibited by applicable US federal, state, or local laws. 📬 Recruiter Policy Please no recruitment firm or agency inquiries — you will not receive a reply from us. 📎 Application Tip PDF is our preferred format for resumes and any other attachments. Thank you! #LI-Remote

Responsibilities

As a Senior Software Engineer, you will design, develop, and maintain backend services and APIs that power Knock's applications. You will also contribute to AI-powered features and collaborate with various teams to create impactful technology solutions.