Full-Stack Engineer (Backend)

Lendbuzz • Boston, MA

4d • $110,000 - $120,000

About The Position

We're looking for a backend-focused full-stack Software Engineer to build the high-quality, scalable backend systems behind our products, and to help shape the user experiences they power. You will play a key role in developing and scaling our in-house Operations team’s experience, owning features from design through deployment and collaborating closely with design, product, and backend teams to deliver scalable, high-performance systems. This is a full-stack role with about 70% focus on backend systems and a 30% focus on frontend.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience)
• 3+ years of backend development experience
• Experience designing and implementing RESTful APIs, with familiarity in microservices and event-driven architecture
• Fluency in relational database technology such as PostgreSQL
• Strong grounding in testing methodologies, including TDD and automated testing frameworks
• Experience with AWS or comparable cloud infrastructure
• Familiarity with agentic development workflows and AI coding tools (Claude Code, Cursor, or similar), and an interest in applying them to real engineering work
• Working knowledge of React, Next.js, and TypeScript, with a willingness to contribute across the stack
• Proven ability to work independently, with strong communication and interpersonal skills

Responsibilities

• Participate in all phases of agile software development, including design, implementation, testing, and deployment
• Build and maintain backend services in Python, supporting RESTful APIs and event-driven workflows
• Collaborate with engineering teams to architect systems optimized for speed, scalability, and reliability
• Contribute to frontend development in React, Next.js, and TypeScript, working across the full stack as product needs require
• Research, prototype, and evaluate new tools and technologies to improve our development workflow
• Develop internal tools and integrate with external APIs
• Contribute to the expansion, testing, and release of products that impact thousands of customers

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level