Senior Backend Developer

About the Company
We are a U.S.-based software company serving the mortgage industry. We build reliable, scalable backend systems that support mission-critical mortgage servicing workflows. Our engineering team values technical excellence, ownership, and clear execution. We operate in a collaborative, fast-moving environment where experienced engineers are trusted to make architectural decisions and improve complex systems.

Position Overview
We are seeking a highly experienced Senior Backend Developer to join our engineering team. This role is designed for senior-level candidates with a proven track record of building and maintaining large-scale backend systems in production environments. You will have significant responsibility in backend architecture, performance optimization, and technical leadership.

This is a fully remote position based in the United States, offering competitive compensation aligned with experience.

Key Responsibilities

- Design, develop, and maintain high-performance backend services

- Architect and scale APIs and microservices using Java and GraphQL

- Design and optimize DynamoDB schemas, queries, and indexing strategies

- Build and support event-driven and distributed system architectures

- Improve system reliability, observability, and fault tolerance

- Collaborate with frontend, DevOps, and product teams

- Lead code reviews and enforce backend engineering best practices

- Mentor junior engineers and provide technical guidance

- Ensure security, scalability, and performance across cloud-based systems

Required Qualifications

- 5 or more years of professional backend development experience

- Strong expertise in Java and Spring Boot

- Proven experience building and maintaining GraphQL APIs

- Deep hands-on experience with DynamoDB and NoSQL data modeling

- Experience designing high-throughput, scalable systems

- Strong knowledge of AWS services including Lambda, SQS, and API Gateway

- Experience with microservices, RESTful APIs, and event-driven architectures

- Familiarity with CI/CD pipelines, automated testing, and DevOps practices

- Experience working in agile development environments

- Strong problem-solving and debugging skills

Preferred Qualifications

- Experience with Kafka, RabbitMQ, or similar messaging systems

- Familiarity with Docker, Kubernetes, and infrastructure-as-code tools

- Experience with caching technologies such as Redis

- Understanding of domain-driven design and CQRS patterns

Why Join Us
- Competitive salary based on experience

- Fully remote work environment

- High level of ownership and technical influence

- Opportunity to work on complex, impactful systems

- Collaborative team with strong engineering standards

- Clear paths for growth and leadership