Senior AI Software Engineer

New

AveniFinancial Technology

Remote-first working across the UKFull-TimeSenior

Salary not disclosed

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Job Details

Extensive software engineering background, building, deploying, and running production LLM/AI applications.
Strong hands-on experience with Node.js, TypeScript, and production React.
Experience with prompt engineering, agentic workflows, RAG, and LLM integration.
Knowledge of AI evaluation frameworks, monitoring, and observability.
Deep understanding of AWS, cloud-native engineering, APIs, and integration patterns.
Experience with microservices, messaging patterns, event-driven, and distributed architectures.
Commitment to quality, clean code, testing, and operational excellence.
Relevant degree or equivalent practical experience.

Build production-ready, AI-powered products integrating LLM capabilities, RAG, and agentic workflows into real-world processes.
Select models, orchestrate prompts, design systems, and implement AI tooling (e.g., LangGraph, Langfuse).
Design evaluation, monitoring, and observability to ensure reliability and readiness for production.
Develop scalable, event-driven microservices and APIs using Node.js and TypeScript.
Build modern, responsive React frontends to make AI useful in customer workflows.
Architect cloud-native systems on AWS (Lambda, ECS/Fargate, API Gateway, SQS/SNS, DynamoDB, RDS).
Implement microservices, distributed-system principles, and strong operational controls for integration into financial products.
Uphold engineering best practices: clean code, automated testing, CI/CD, and operational excellence.
Diagnose and improve production behaviours relating to reliability, latency, cost, and AI quality.
Mentor engineers, contribute to team growth, and collaborate closely with product and engineering to deliver customer-ready features.

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