Senior Software Engineer

Sundogs Creative; Tarragona; A distancia; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

A cutting-edge creative technology firm is seeking a Senior Software Engineer to build next-generation creative intelligence tools. This fully remote role requires 7+ years of backend engineering experience, deep expertise in Python, and the ability to collaborate with non-technical teams. You will improve and scale critical systems while working closely with clients. A strong understanding of data engineering and LLMs is a plus, as is a passion for creative technology.

Servicios

Early equity in a fast-growing start-up

Flexible, remote-first work environment

Direct access to founding team

Culture valuing curiosity and craftsmanship

Formación

• 7+ years backend engineering experience in ambiguous environments.
• Ability to ship scalable, reliable, production-grade systems.
• Proven experience with LLMs or data-intensive systems.

Responsabilidades

• Improve and scale Ad Scoring API based on client use cases.
• Design and build scalable data systems and pipelines.
• Collaborate with early API clients for technical onboarding.

Conocimientos

Backend engineering experience

Deep Python experience

Collaboration with non-technical teams

Data engineering experience

Herramientas

GCP (Google Cloud Platform)

FastAPI

Postgres

OpenAI

Descripción del empleo

Who We Are

Hi, We’re Sundogs. We’re using AI and human creative expertise to transform video advertising. Working with the biggest brands in the world, we’re building a way to measure creative effectiveness – helping creators everywhere use AI to tell better, more creative stories, and make their video ads not just better, but revolutionary.

Our team is a global collection of Cannes-winning creatives, ex-Googlers, cutting-edge data scientists, and start-up entrepreneurs, and we're exploring the future with curiosity and delight.

We’re looking for a Senior Software Engineer who’s a product-minded, problem solver at heart, and excited to build the next generation of creative intelligence tools.

The Opportunity

We’re looking for a Senior Software Engineer who’s excited to build things from the ground up:

someone who can think strategically, move fast, and care deeply about quality. You’ll be a key player in taking our product from MVP to scalable platform, helping global brands get real results from their creatives.

This is not a narrowly scoped role. You’ll own critical systems end-to-end, and work closely with the data and product teams to translate creative ideas into production-level software. This role is fully remote and candidates from all geographies are welcome to apply.

Please note application instructions. Resumes submitted only via LinkedIn will not be considered.

You’ll Thrive Here if You :

Are energized by ambiguity and enjoy bringing structure where it doesn’t yet exist

Collaborate well with non-technical teammates (creative, product, strategy)

Want to work directly with early adopters who are leading global brands and see your work in the wild, fast

Want to shape not just what we build, but how we build it :

code, culture, process, and technical direction

What You'll Do

Platform & Backend Engineering :

• Improve and scale our Ad Scoring API based on client use cases
• Design & Build scalable data systems and pipelines for creative and performance signals
• Build for scale :
• robust, scalable systems with great monitoring, alerting, and failure-handling

AI / LLM Pipeline

• Refine our LLM pipelines (OpenAI, Gemini, etc.) for performance and reliability
• Collaborate on creative uses of AI across the stack, from scoring to benchmarks

Technical Enablement & Collaboration

• Work directly with early API clients to support technical onboarding and create feedback loops to integrate into tech and product roadmaps
• Collaborate across teams to make technical work clear and actionable
• Bring curiosity and empathy to every interaction—especially when translating technical concepts for non-technical teammates

What We're Looking For

• 7+ years backend engineering experience, ideally with some experience in fast-paced, high ambiguity environments (start-up or other)
• Deep Python experience and fluency and production experience in GCP (or other major cloud provider)
• Familiarity with LLMs or data-intensive systems at scale, data engineering experience is a plus
• Proven ability to ship scalable, reliable, production-grade systems
• Clear, concise, curious and warm communicator, able to make technical concepts simple and accessible
• Empathetic collaborator, especially when working with non-technical peers, who thrives on feedback, iteration, and shared success

Our Stack :

Python, FastAPI, Postgres, GCP (Cloud Run, BigQuery, VertexAI), OpenAI, Gemini, SQL

What We Offer

• Early equity in a fast-growing start-up
• Flexible, remote-first work environment
• Direct access to founding team, clients, and creative challenges
• A culture that values curiosity, candor, and craftsmanship

Note :

Our team is fully remote and distributed within EST-CET timezones. While we are distributed across timezones, workdays are local hours (with occasional / rare exceptions).

Application Instructions

Submit your resume and prompt responses to

• We're not looking for polish, we're looking for clarity;

we’re interested in your thinking process, not just the technical details. Resumes without answered prompts will not be considered.

In 250 words or less, answer the following question :

Tell us about a time you re-designed or refactored a system (e.g., an API, data pipeline, architecture, or core service). What was the original problem or limitation? What changes did you make and why? What was the result?

In 250 words or less, answer the following question :

Pick a technical system, tool, or project you’ve worked on, like an API, data pipeline, ML model, or cloud architecture, and explain it clearly and simply, as if you were describing it to a teammate in marketing or creative.