Hi there! 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.
Presente su candidatura después de leer los siguientes requisitos de habilidades y cualificaciones para este puesto.
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 integral, 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
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.
Event‑driven architecture—message queues (Pub/Sub, SQS, Kafka), async job processing, streaming.
Comfortable across the full stack—you don’t need permission to jump into a new codebase, language or layer.
Nice to Have
Stream processing (Apache Flink, Kafka Streams)—building and operating real‑time data flows.
Web scraping at scale—distributed crawling, browser automation, proxy management.
Kubernetes + IaC (Terraform/OpenTofu)—you can own the deployment.
OLAP / time‑series databases—ingestion, partitioning, performance tuning for analytical workloads.
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. xpzdshu
A strong, ambitious team building something that genuinely matters.
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