Backend Software Engineer (Boston) - job 1 of 3

At Lendbuzz, we believe financial opportunity should be more personalized and fair. We develop innovative technologies that provide underserved and overlooked borrowers with better access to credit. From our employees to our dealers, partners, and borrowers, we’ve built a company and a culture around a resolute belief in the promise and power of diversity. We value independent and critical thinking.

We're looking for an experienced Software Engineer to join our Backend team. In this role, you'll help design and develop backend systems, work on system architecture, and build event-driven microservices. You'll also collaborate on API integrations and contribute to products that impact thousands of users. The ideal candidate has 3+ years of backend development experience and is skilled in PostgreSQL and microservices architecture.

• Develop and maintain core backend services within Lendbuzz’s microservices infrastructure in a fast-paced, high-ownership environment
• Drive cross-functional impact by building scalable infrastructure used horizontally across multiple product teams
• Build deep technical and business understanding, resisting specialization silos to stay adaptable and valuable across domains
• Partner with engineers to architect system frameworks for new product and platform initiatives
• Research, prototype, and implement tools that enhance backend service performance and reliability
• Upgrade and maintain microservice ecosystems, including database infrastructure and deployment workflows
• Design and develop internal tooling while ensuring clean integration with third-party APIs and services
• Contribute to the lifecycle of customer-facing products—expansion, testing, release—ensuring stability and measurable impact

• 3+ years of hands-on backend development experience in production environments
• Bachelor's degree in Computer Science or a related technical field
• Familiarity with Python is a plus—especially if you’ve shipped production code using it
• Strong proficiency with relational databases, particularly PostgreSQL
• Experience designing, building, and maintaining microservices, ideally in Dockerized environments (e.g., AWS ECS, EKS)
• Solid understanding of RESTful API design principles and asynchronous communication using message brokers like RabbitMQ or Kafka
• Proven ability to write and review technical design documents and implement scalable APIs in service-oriented architectures

We believe:

Diversity is a competitive advantage. We celebrate our differences, and are better when we have a variety of experiences, viewpoints, and backgrounds.

Compassion is a strength. We care about our customers and look to build long-term relationships with them.

Simplicity is a key feature. We work hard to make our forms and processes as painless and intuitive as possible.

Honesty and transparency are non negotiable. We incorporate these traits in all of our interactions.

Financial opportunity belongs to everyone. We work every day to improve lives by extending this opportunity.

If you believe these things too then we would love to hear from you!