AI Product Engineer, Elixir

AgilityFeat

. Translate customer or market needs and high-level ideas into product decisions, clear specifications, acceptance criteria, and achievable weekly delivery goals .

Posted 10/20/2026contractRemoteMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Elixir-based application development, including architecture, APIs, and performance optimization, while ensuring quality and security in software delivery. Proficient in managing autonomous coding-agent workflows and effective client communication.

Highest-signal resume keywords

Elixir DevelopmentPhoenix FrameworkAutomated TestingCI/CDAPIs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Software DevelopmentDebuggingSoftware DesignFull-Stack EngineeringBackend EngineeringDatabase ManagementCloud-Hosted Production SystemsAI Coding AgentsMulti-Step Agent WorkflowsProduction Applications

Soft Skills

Proactive CommunicationIndependent JudgmentProblem-SolvingTeam CollaborationClient Engagement

Tools & Technologies

GitAWSJavaScriptTypeScriptNode.jsDevOps PracticesObservability ToolsSDKsCLIsPlugin-Based Platforms

Industry Keywords

Agile DevelopmentSoftware ArchitectureQuality AssuranceSecurity StandardsProduction Mobile Applications

Tech Stack

Tools & technologies

AWSCloudElixirJavaScriptNode.jsTypeScript

About the role

Key responsibilities & impact

Translate customer or market needs and high-level ideas into product decisions, clear specifications, acceptance criteria, and achievable weekly delivery goals
Own architecture and implementation of Elixir-based applications, including integrations, APIs, data models, scalability, performance, security, and maintainability
Set up and operate autonomous coding-agent workflows, including task planning, parallel agents, context and state preservation, recovery of failed or interrupted work, and execution cost and limit management
Build a dependable delivery loop from specification/PRD to tracked issues, agent implementation, automated tests, CI, independent QA/security review, pull requests, controlled merges, and releases
Challenge agent output, diagnose difficult problems, validate behavior end-to-end, prevent regressions, and write code directly when appropriate
Communicate daily and proactively with clients and the team, surface risks, propose trade-offs and solutions, demonstrate working increments, and maintain visible progress
Continuously improve the agent harness, development standards, observability, and quality gates
Deliver working, verified software at the end of each sprint
Ensure agents make progress on prepared work between reviews
Deliver quickly while maintaining quality and security

Requirements

What you’ll need

4+ years of professional software development experience delivering and maintaining production applications
Strong debugging, architecture, and software-design fundamentals
2+ years of hands-on Elixir development experience on real applications
Ability to reason confidently about Elixir code and its runtime
Experience with Phoenix, OTP, and Ecto highly relevant
Demonstrable experience shipping meaningful development work using AI coding agents such as Claude Code, Codex, or comparable CLI-based tools
Ability to operate multi-step agent workflows with testing, review, retries, and human approval gates
Ownership of the correctness and security of shipped results
Strong full-stack or backend engineering skills, including APIs, databases, Git, automated testing, CI/CD, and cloud-hosted production systems
Product mindset and independent judgment
Excellent written and spoken English
B2+ or above English proficiency required for daily written and spoken client and team communication
Proactive client communication
Ability to work remotely with own equipment during 9 AM–5 PM Eastern Time
Additional desired: existing autonomous software factory or agent harness
Additional desired: experience with AWS, JavaScript/TypeScript or Node.js, modern DevOps and observability practices
Additional desired: experience designing developer-first integrations, SDKs, CLIs, MCP tools, or plugin-based platforms
Production mobile application experience is a plus

Benefits

Comp & perks

9 paid holidays
10 days of PTO
Remote work
Full-time schedule aligned with Eastern or Central Time business hours
Monthly payments in US dollars