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Senior Software Engineer

Portsmouth, New Hampshire, United States💼 Full-time🗓 2026-08-25 → 2026-10-07

Core

Design and develop technical solutions, data pipelines, and custom applications to support analytics, reporting, and AI workflows within an agile team.

Role type

Senior Software Engineer (Data & AI) (via careerplan.io/jobs/618519419340-senior-software-engineer-at-libertymutual)

Builds

Data ingestion/curation pipelines, custom applications, and AI/ML support infrastructure

Domain

Enterprise Data Engineering and Generative AI

Deliverable

production ML models

Required skills

Python, TypeScript/Node.js, React, SQL, Postgres, Microservices, REST APIs, AWS (CDK, Glue, Lambdas, S3, Step Functions, DynamoDB, ECS, Fargate, SQS, API Gateway), CI/CD (GitHub Actions, Jenkins, Azure DevOps), LLM orchestration, search systems, context engineering, workflow observability, prompt and model tracking

Preferred skills

DataDog, MLflow, LangSmith, Agile data engineering concepts, consultative design skills

Responsibilities

Design and develop technical solutions for data-driven initiatives; provision data for model development and AI workflows; automate testing (unit, integration, regression); support custom applications through their lifecycle; champion engineering excellence and foster a learning mindset.

Seniority

Senior, hands-on IC