Senior Full-Stack Engineer: AI & MarTech Growth

Bark; Madrid; Remote; EUR 90,000 - 130,000; Full time

Job summary

Bark is seeking a Senior Full Stack Engineer to join a small, agile squad focused on the Acquisition domain. You will work across frontend and backend with Python and React/TypeScript to build scalable APIs and user experiences, helping scale our marketing technology stack.

You will partner with Marketing to design AI-powered tools, contribute to MarTech stack, AB testing, and guardrails for secure deployments.

Qualifications

• 4+ years of Python production experience.
• 4+ years of React experience.
• Ability to split time between front-end and back-end (50/50 preferred).
• Experience building scalable web applications.
• Strong SQL skills; familiarity with NoSQL datastores.
• Experience building, maintaining and documenting APIs for internal/external use.
• Strong organizational and communication skills.
• Comfort with AI-assisted development tools.

Responsibilities

• Build APIs, services and front-end experiences using Python and React/TypeScript.
• Integrate with marketing technology stack and external services.
• Design and ship AI-powered internal tooling for marketing and other teams.
• Measure adoption and business value of tools using relevant metrics.
• Promote secure and efficient code with guardrails for AI outputs.
• Collaborate with product, design and marketing to move ideas to production.
• Proactively improve codebase and architecture; mentor peers.
• Evaluate new AI tools and drive adoption with documentation and patterns.

Skills

Python

React

Full-stack

SQL

NoSQL

APIs

AI tooling

Communication

Tools

MySQL

AWS

ElasticSearch

DynamoDB

Datadog

Job description

Bark is seeking a Senior Full Stack Engineer to join a small, agile squad focused on the Acquisition domain. You will work across frontend and backend with Python and React/TypeScript to build scalable APIs and user experiences, helping scale our marketing technology stack.

You will partner with Marketing to design AI-powered tools, contribute to MarTech stack, AB testing, and guardrails for secure deployments.