Sr. Backend Engineer Jersey

Sunbit builds financial technology for real life. Our AI-native platform helps more people get to "yes" at the moments that matter with personalized offers, transparent terms, and no added consumer fees. In stores, practices and service centers across the country, Sunbit provides a fast, fair pay-over-time option. For everything else, the Sunbit Credit Card delivers a modern, no-fee credit experience managed in a powerful mobile app.

We are guided by people-centered values:
Serve Others Before Self, Include Always, Connect Genuinely, Innovate for Good. These values shape how we build, how we support customers and merchants, and how we work with each other.

What makes Sunbit different is an AI-native infrastructure that runs through the full customer and merchant journey. Our interconnected AI systems power instant decisioning, streamline fraud checks with human-in-the-loop safeguards, and enable highly personalized offers  result is a quick, fair, and simple experience for consumers and merchants.

We pair this technology with inclusion and transparency. Sunbit delivers industry-leading approval rates — 90%+ in auto service and 85%+ in dental — while maintaining zero consumer fee-based revenue. It is a better way to serve people and merchants, proven at scale.

Today, Sunbit is available across a nationwide, in-person merchant network of 30,000+ locations spanning auto service centers, dental and optical practices, veterinary clinics, and other specialty services. We help teams say "yes" more often and help customers move forward with confidence.

We are looking for a Sr Backend Engineer to join our team responsible for designing, building, and maintaining the core platform that supports our call center operations, including the agent desktop that powers day-to-day customer interactions. The solutions developed by this team have a direct impact on how efficiently our agents assist customers and resolve issues.

In this role, you will also contribute to improving operational efficiency through automation, AI, and intelligent workflows. This includes developing tools that enable agents to work more effectively, integrating systems across the call center ecosystem, and introducing AI-powered capabilities that enhance both the agent and customer experience.

This is a high-impact opportunity where engineering work directly influences real-world operations  will tackle complex product and platform challenges in a fast-paced environment while helping shape the technology that powers Sunbit’s customer success organization.

• Design, build, and evolve the Customer Success agent desktop, the core platform used by our call center to support customers.
• Develop tools, workflows, and integrations that connect multiple systems used by our Customer Success organization.
• Improve agent productivity and operational efficiency through automation, smart workflows, and AI-driven capabilities.
• Work on high-impact product and platform challenges, solving real operational problems at scale.
• Collaborate closely with Product, Customer Success, Product lines, and Operations teams to design solutions that improve both agent and customer experience.
• Ensure systems are reliable, scalable, and maintainable, supporting a fast-growing operational environment.
• Write clean, high-quality code, with strong testing and observability practices.
• Take ownership of features end-to-end, from design and architecture through development and production deployment.
• Contribute to a strong engineering culture by sharing ideas, improving processes, and supporting teammates.

• 5+ years of experience in software engineering
• Bachelor’s degree in Computer Science or a related field.
• Experience in Kotlin, Java, or Scala with hands‑on experience.
• Experience in the Spring Framework.
• Proficient in both relational (e.g., MySQL) and non‑relational databases (e.g., Mongo
  
  DB).
• Proficiency in micro‑service architecture
• Familiarity with message queue technologies such as Kafka, SQS, Rabbit
  
  MQ, or similar.
• Strong problem‑solving skills, capable of meeting technical challenges head‑on.
• Experience with backend software development.
• A…