Senior Engineer – Apply For CircleCard

What you'll do

• Design, build, and maintain scalable backend services, APIs, and distributed systems for Circle Card experiences.
• Lead architecture, design and code reviews, testing, operational improvements, and technical mentoring.
• Design, deploy, and optimize AI applications, agents, and workflows, including evaluation, security, and observability practices.

What they ask for

• 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 LLMs; experience with autonomous or multi-agent workflows and AI application architecture.
• Proficiency in Python; expert-level proficiency in Kotlin and Java, with Micronaut and/or Spring Boot experience.
• Experience with distributed systems, RESTful APIs, Kafka, PostgreSQL, Redis, Docker, Kubernetes, CI/CD, and production services; strong communication, collaboration, and technical leadership skills.

Nice to have

• Experience with workflow orchestration platforms such as Temporal.
• Experience creating reusable AI workflows or skills, or working on Target Register platform.

Pay

$98,000.00 - $176,000.00 USD base salary

Tools

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

AI focus

Build production AI applications and autonomous or multi-agent systems; develop RAG solutions, agent workflows, and prompt/context engineering; optimize and evaluate AI systems while applying responsible AI, security, governance, and observability practices.