Hi there!
Inscríbase ahora, lea los detalles del trabajo desplazándose hacia abajo. Verifique que posee las habilidades necesarias antes de enviar una solicitud.
At Flipflow, we're looking for a Senior Backend Engineer to join our core engineering team and help us build and scale one of the most ambitious Retail Intelligence platforms in the market.
This is a deep technical role, for people who genuinely enjoy building software, thinking about architecture, and getting involved not only in code but also in product and business decisions .
If you're excited about complex backend systems, massive-scale data processing, crawling infrastructure and making data flow reliably from collection to client — this role is for you.
About Flipflow & Our Mission
Flipflow is a Retail Market Intelligence & Digital Shelf Analytics SaaS platform, currently scaling internationally after strong growth in Spain and Latin America.
Since our launch in 2021, our mission has been clear:
To give brands, manufacturers and retailers a real-time, actionable and reliable cockpit and AI copilot to understand their products, competitors and markets — enabling better business decisions.
Retail is facing one of the biggest transformations in its history:
markets are global, competition is intense, and margins depend on data quality, speed and intelligence .
At Flipflow, we believe real-time competitive intelligence is no longer optional — it’s essential.
Your Challenge & Impact
At Flipflow, every new backend feature is an adventure and a project on its own — most of them genuinely fun if you like hard problems.
We crawl over a billion datapoints per week, process and normalize massive volumes of messy retail data, and turn that into structured intelligence used by global brands.
As a Senior Backend Engineer, your mission is to design, build and evolve the systems that:
* Collect and process massive volumes of raw data with our own crawling infrastructure
* Normalize, relate and enrich millions of products across markets with complex data pipelines
* Power our proprietary BI suite, analytics and AI-driven insights using LLMs and Agents
* Scale reliably as customers, use cases and data volumes grow
You will have a direct impact on product quality, system scalability, data intelligence and Flipflow’s long-term technical foundation .
What will you do?
* Design, build and maintain core backend services and APIs — PHP/Laravel as the main framework, with TypeScript, Python and Go across different services.
* Build and operate large-scale data pipelines — ingest data from hundreds of crawled sources, transform and normalize it, and deliver it reliably to our OLAP engine so clients see fresh, accurate data every day.
* Contribute to and improve our distributed crawling infrastructure — tens of millions of daily requests, thousands of parallel browsers, proxy management, session handling and anti-detection systems, all built in-house.
* Work on event-driven and streaming systems — message queues, async processing, real-time data flows. You’ll ensure data moves efficiently from collection to delivery at scale.
* Jump between codebases, languages and layers as needed — from Terraform to TypeScript to PHP to Go. If something is broken or needs building, you own it regardless of where it lives.
Your Profile
* 5+ years of experience in Backend, Full-stack or Data Engineering roles.
* Data pipeline engineering — you've built systems that ingest, transform and deliver large volumes of data reliably. Not analytics or dashboards — the plumbing that makes data flow from source to client.
* Event-driven architecture — message queues (Pub/Sub, SQS, Kafka), async job processing, streaming. You've built systems where millions of events flow through multiple stages without losing data.
* Comfortable across the full stack — you don't need permission to jump into a new codebase, language or layer. If it's broken, you fix it. If it needs building, you build it.
⬆ Nice to Have
* Stream processing (Apache Flink, Kafka Streams) — building and operating real-time data flows, not just consuming them.
* Web scraping at scale — distributed crawling, browser automation, proxy management. You've dealt with the chaos of collecting data from hundreds of sources.
* Kubernetes + IaC (Terraform/OpenTofu) — you can own the deployment, not just the code. Helm, ArgoCD, GCP/AWS.
* OLAP / time-series databases — ingestion, partitioning, performance tuning for analytical workloads. xkdbapo
What We Offer
* Compensation: Competitive senior-level salary aligned with experience and impact
* Real ownership: You will shape core systems, not just implement tickets
* Hard technical problems: Massive data, AI in production and complex distributed systems
* Flipflow culture: High standards, autonomy, trust and frequent feedback
* Flexibility: Hybrid model (2 days remote / 3 onsite)
* Location: Offices in La Marina, Valencia, with wonderful views of the sea
Our Commitment
At Flipflow, senior engineers are builders and decision-makers, not just executors.
We offer:
* Ownership over meaningful technical problems
* Space to design, refactor and improve core systems
* Real-world AI and data challenges
* A strong, ambitious team building something that genuinely matters
* If you want to build the systems that move data at scale, and be part of a company aiming to define a new standard in Retail Intelligence, we'd love to meet you.