Senior Engineer – Apply For CircleCard

What you'll do

• Design, build, and maintain Circle Card services, APIs, and distributed systems; lead architecture, reviews, testing, and operational improvements.
• Develop production AI applications and agentic workflows, including RAG, prompt and context engineering, and AI evaluation.
• Provide technical leadership, mentor engineers, and collaborate across product and engineering teams.

What they ask for

• 4 years of degree or equivalent practical experience.
• 5+ years of software engineering experience building enterprise-scale applications and backend systems.
• Hands-on experience designing and deploying production AI applications, AI-powered tools, or agentic systems using modern LLMs; experience building autonomous or multi-agent workflows.
• Expert-level proficiency in Kotlin and Java; experience with Micronaut and/or Spring Boot, plus distributed systems, RESTful APIs, Kafka, PostgreSQL, and production services.

Nice to have

• Experience with workflow orchestration platforms such as Temporal.
• Experience creating reusable AI workflows or “skills”; experience with the Target Register platform.

Pay

$98,000.00 - $176,000.00 (base salary; currency not stated)

Tools

Kotlin, Java, Micronaut, Kafka, PostgreSQL, Python, LangGraph, LangChain

AI focus

Build production AI applications, autonomous and multi-agent systems, RAG solutions, and reusable AI workflows; apply AI-assisted development, prompt and context engineering, and AI evaluation, optimization, and responsible AI practices.