Senior Backend Engineer (Elixir) — AI-Powered Platform

Tellent; United States; Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid/Remote

Training budget

Pension plan

Travel reimbursement

Wellness perks

28 holiday days + 2

Work from anywhere 4 weeks/year

MacBook and tools

Home office budget

Job summary

Tellent is seeking a backend-heavy product engineer to transform fuzzy AI ideas into trusted interfaces. You’ll own problems end to end—from shaping and building to shipping and validating impact. Expect hands-on Elixir work, collaboration across the stack, and mentoring as you grow within a fast-growing European scale-up.

You’ll join a diverse, remote-friendly team, contributing to scalable architecture and customer-centric product improvements while shaping a company-defining tech transition.

Qualifications

• Experience in Elixir or strong backend experience with other languages and willingness to learn Elixir.
• Proficiency with Typescript or ability to learn Mastra for AI tasks.
• Senior-level judgment and ability to ship features end-to-end.
• Product thinking and data-driven decision making.
• Interest in building AI-powered features and shipped experiments.
• Fluent English communication; Polish is a plus.

Responsibilities

• Build AI-powered features into mature products with real users.
• Work across the stack when needed (mostly backend, some frontend).
• Take ownership of delivered features, ensure tests and quality.
• Collaborate with Backend/Frontend, Design, QA, and DevOps to deliver value.

Skills

Elixir experience

Backend development

Typescript

Mastra

Product thinking

AI interest

Communication (English)

Tools

Mastra

Elixir stack

Python

Job description

Tellent is seeking a backend-heavy product engineer to transform fuzzy AI ideas into trusted interfaces. You’ll own problems end to end—from shaping and building to shipping and validating impact. Expect hands-on Elixir work, collaboration across the stack, and mentoring as you grow within a fast-growing European scale-up.

You’ll join a diverse, remote-friendly team, contributing to scalable architecture and customer-centric product improvements while shaping a company-defining tech transition.