Senior Full Stack Engineer, PEEK Q2'26

Peek

Senior Full Stack Engineer developing beautiful and functional customer experiences for Peek's AI-powered booking flows. Collaborating with the engineering team to tackle complex technical problems.

Posted 5/1/2026full-timeRemote • 🇲🇽 MexicoSenior💰 MX$1,000,000 - MX$1,150,000 per yearWebsite

Tech Stack

Tools & technologies

ElixirJavaScriptSQL

About the role

Key responsibilities & impact

Do you love crafting beautiful and functional customer experiences?
Want to work on interesting technical problems around booking flows and payments?
Do you have a passion for Elixir and functional programming but also love building complete experiences end to end?
You'll design and operate complex agent orchestration systems, develop patterns for human-agent collaboration, and ship real product features primarily through agent-assisted development in collaboration with human colleagues.
This role will primarily focus on the Customer Experience (B2B2C) side of the business, including building an elevated user experience in a new and improved greenfield booking flow.

Requirements

What you’ll need

Strong backend fundamentals in Elixir: API design, data modeling, SQL, service reliability, and debugging production issues.
Passion for crafting flawless user experiences: enthusiastic to closely follow design mockups, “customer experience first” mentality, well-tested code is a top priority - bugs in production keep you up at night.
A holistic view of development and complexity: ability to identify and bridge the gap between frontend and backend complexity.
Adaptability to the changing tech industry: demonstrated daily use of AI coding tools (Claude Code, Codex, Cursor or equivalent) in a production engineering workflow.
Ability to critically evaluate AI-generated code: you catch logic errors, identify security issues, assess maintainability, and own what gets merged regardless of how it was written.
Strong system design instincts: you think about tradeoffs, edge cases, and what happens when things scale or fail.
Clear and empathetic communicator: you flag when a spec has holes, you can articulate why you made a technical choice, you enjoy collaboration and seek to understand different perspectives, and you are constructive in any disagreements.
Self-motivation and ownership: you will push your work forward without prompting and look for ways to unblock yourself and the team on business priorities; you enjoy ownership over your work and seeing code through from conception to production.
A passion for Elixir and functional programming.
5+ years of professional development using Elixir and/or JavaScript.
Solid coding practices including peer code reviews, unit testing, continuous integration, TDD, etc.
Strong understanding of AI tools and ability to identify pitfalls and course correct AI-generated code based on deep knowledge of the fundamentals of building production software.
Experience being on an on-call rotation and willingness to help with occasional production issues outside of work hours when on-call.

Benefits

Comp & perks

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Hard Skills & Tools

ElixirAPI designdata modelingSQLservice reliabilitydebuggingunit testingcontinuous integrationTDDAI coding tools

Soft Skills

customer experience focusclear communicationempathyself-motivationownershipcollaborationcritical evaluationadaptabilityproblem-solvingsystem design instincts