Senior Full Stack Engineer

About This Role Saaf Finance is building the AI workforce for the mortgage industry. We are an AI startup integrated with a top-10 mortgage lender, American Heritage Lending (AHL). Together we are combining AHL’s 15+ years of mortgage origination expertise with the power of AI-native innovation to redefine what’s possible in mortgage lending. As a Full Stack Engineer at Saaf Finance, you will design and ship software that automates complex mortgage workflows while collaborating closely with founders, engineers, and design. We are an AI-native engineering team: AI-assisted development tools are a regular part of how we build, review, and ship software. We expect engineers to use these tools thoughtfully and effectively as part of their daily workflow. Responsibilities Product & Engineering - Design, develop, and maintain scalable software solutions that automate mortgage-related processes and support collaboration among end users. - Work closely with founders, senior engineers, and design teams to translate customer needs into effective, practical software. - Shape engineering strategy and contribute to new product features and team planning. Architecture & APIs - Design and maintain scalable systems, APIs, and services that are easy to update, expand, and secure. - Design, implement, and document RESTful and/or GraphQL APIs that are robust, secure, and easy to use. - Ensure data integrity, security, and governance across applications, following best practices for data management and compliance. - Foster a security-first mindset in all development activities. AI-Integrated Development - Leverage AI-assisted development tools (code generation, intelligent autocomplete, automated refactoring) as a regular part of your workflow to accelerate delivery and improve code quality. - Use AI tools to support documentation, code review, test generation, and knowledge sharing across the team. - Evaluate and integrate emerging AI development tools and practices, helping the team continuously improve how we build software. - Apply AI-assisted analysis to debugging and troubleshooting workflows where appropriate. Team & Process - Break down and organize large projects into manageable tasks, ensuring clarity and alignment within the team. - Encourage documentation and knowledge sharing to promote collaboration and onboarding. - Create an environment where everyone feels safe to express ideas and disagreements, and is open to new perspectives. - Ensure team discussions focus on organizational goals and strategies. - Regularly review and improve team methods and workflows. - Guide and support team members, helping to build skills and ensure mutual coverage. Reliability & Operations - Use thorough debugging and troubleshooting methods to resolve software issues. - Set up and enhance monitoring to improve service stability and performance. Qualifications Required - 5+ years of experience as a Full Stack Developer, with experience spanning both frontend and backend development. - 3+ years of experience working with frontend JavaScript frameworks such as React or Angular, and backend technologies like NodeJS (these may overlap). - Strong experience designing and implementing APIs (RESTful and/or GraphQL), including versioning, documentation, and security best practices. - Demonstrated, regular use of AI-powered development tools (e.g., Cursor, GitHub Copilot, Claude Code, or similar) to accelerate coding, debugging, or documentation workflows. - Proficiency in SQL and NoSQL databases such as Postgres, MongoDB, or MySQL. - Solid understanding of the software development life cycle and Agile methodologies. - Proven experience leading a team or architecting a large-scale enterprise product. - Exceptional problem-solving, debugging, and software design skills. - Excellent written and verbal communication skills. - Self-driven with a strong work ethic and passion for excellence. - Ability to work effectively both independently and as part of a team. Preferred - Strong understanding of AWS infrastructure and hands-on experience with services such as Serverless Framework, Lambda, and CloudFormation. - Experience working with Terraform. - Experience with prompt engineering for code generation, refactoring, test creation, or building AI-powered product features. - Knowledge of design patterns, data structures, and distributed systems. - Experience with data engineering (pipelines, ETL workflows, data architecture). - Prior early-stage startup experience is highly preferred. Benefits - Competitive salary - High ownership from day one — your work will directly shape core systems and products - Fast-paced environment with quick decision cycles and minimal bureaucracy - Remote-first team with flexibility on work hours and location - Direct access to founders and cross-functional teams — no layers, no silos - Clear expectations, regular feedback, and support for professional growth - Work on real problems in a complex, high-impact industry Originally posted on Himalayas