Lead Backend Engineer / Tech Evangelist

Q-tech; Barcelona; Híbrido; EUR 90.000 - 115.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Permanent contract and 30 days of paid

Hybrid model with 3 days a week in the

Regular trips to Stockholm

Yearly Hack Week

Private health insurance

Flexible compensation

Meal vouchers

Descripción de la vacante

Q-tech in Barcelona is seeking a hands-on Senior Engineer or Lead Engineer to shape the Commerce platform across sign-up, checkout, payments and subscriptions. You will write production code in Node.js/TypeScript (with some Rust) and influence cross-team decisions, mentoring others and driving technical initiatives.

This role offers a permanent contract, a hybrid model with three days in the Barcelona office, and regular trips to Stockholm to connect with peers; you’ll also benefit from a yearly

Formación

• Solid experience as a Senior Engineer or Tech Lead with influence beyond your team.
• Experience designing scalable cloud services on AWS, ideally serverless and event-driven.
• Experience with high-traffic, high-transaction consumer products.
• Ability to drive technical initiatives without formal authority.
• Hands-on experience with AI-assisted engineering practices.
• Experience modernising or migrating complex systems.

Responsabilidades

• Build scalable, resilient backend services in Node.js and TypeScript (with some Rust) on AWS.
• Design integration strategies with third-party payment providers and commercial platforms.
• Write production code and support other teams when needed.
• Define the technical direction of the Commerce platform in line with the product vision.
• Mentor engineers and promote solid solutions over trendy ones.

Conocimientos

Senior Engineer

Tech Lead

Technical influence

Mentoring

Herramientas

Node.js

TypeScript

Rust

AWS

Serverless

Event-driven

AI-assisted engineering

Descripción del empleo

Half code, half influence. Ready to shape how viewers become customers?

At Q-tech, we collaborate with a leading streaming and entertainment group in the Nordic countries, home to top-tier live sports, original series and films.

They are looking for a hands-on Senior or Lead Engineer for their Barcelona hub to join the Commerce platform, which covers sign-up, checkout, payments and subscriptions.

You’ll split your time between writing code and supporting other teams with technical decisions, sharing knowledge and driving company-wide initiatives. This role has no people or budget management. Your impact comes from technical influence and evangelism.

Responsibilities:

• Build scalable, resilient backend services in Node.js and TypeScript (with some Rust) on AWS.
• Design integration strategies with third-party payment providers and commercial platforms.
• Write real production code, including outside your own domain when another team needs support.

Technical evangelism and company-wide initiatives:

• Help define the technical direction of the Commerce platform in line with the long-term product vision.
• Support other teams on cross-cutting problems, and take an active part in the engineering guilds and tech communities.
• Challenge the “why” before the “how”: make sure the teams are solving the right problem.
• Mentor engineers and favour solid solutions over trendy ones. Help teams reach good decisions instead of imposing them.

Requirements:

• Solid experience as a Senior Engineer or Tech Lead, with a track record of influencing beyond your own team.
• Experience designing scalable cloud services on AWS, ideally serverless and event-driven.
• Experience with high-traffic, high-transaction consumer products.
• Ability to drive technical initiatives without formal authority.
• Hands-on experience with AI-assisted engineering practices.
• Experience modernising or migrating complex systems.

What is offered:

• Permanent contract and 30 days of paid holiday
• Hybrid model with 3 days a week in the Barcelona office
• Regular trips to Stockholm to connect with your peers
• A yearly Hack Week, and many of its projects make it into the product
• Private health insurance, flexible compensation and meal vouchers