Senior Backend Engineer (Kotlin/Java) — Remote & AI-Driven

Harvey Nash Technology; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Harvey Nash Technology is seeking a Senior Backend Engineer (Kotlin/Java) to join a compact, product-focused team working on a high-traffic mobile app backend. This role emphasizes end-to-end ownership of services, from development to monitoring, with a focus on scalability, reliability, and performance.

You'll work with AI-driven features, contribute to architectural decisions, and collaborate with a small team of about six engineers. Remote work is supported.

Qualifications

• Production-grade JVM backend experience in Kotlin or Java.
• Strong problem-solving, analytical and architectural thinking.
• Practical experience using AI in software development or AI-enabled features.
• Curiosity about emerging AI technologies and willingness to experiment.
• Experience in fast-paced product environments and end-to-end ownership of services.
• Strong English communication skills.

Responsibilities

• Build and maintain backend services for a high-traffic mobile app (chat, memory, personalization).
• Work on AI-powered assistants supporting purchasing journey and pre-purchase experience.
• Develop new features and extend functionality for additional business use cases.
• Improve and harden components for scalability, reliability and performance.
• Take end-to-end ownership of services: development, maintenance, monitoring and operational excellence.
• Take part in architectural and technical decisions in a small team of about 6 engineers.
• Use AI tools daily and evolve AI-driven user experiences.

Skills

Backend engineering

Kotlin

Java

JVM ecosystem

Architectural thinking

Problem solving

AI in development

English communication

Tools

Prometheus

Grafana

Job description

Harvey Nash Technology is seeking a Senior Backend Engineer (Kotlin/Java) to join a compact, product-focused team working on a high-traffic mobile app backend. This role emphasizes end-to-end ownership of services, from development to monitoring, with a focus on scalability, reliability, and performance.

You'll work with AI-driven features, contribute to architectural decisions, and collaborate with a small team of about six engineers. Remote work is supported.