GL

Guillermo Lupiáñez Tapia

Available to hire

Senior backend engineer with 5+ years building high-throughput distributed systems using Python, Kafka, and AWS. I own production architecture end-to-end, delivering measurable cost and reliability improvements.

About

Senior backend engineer with 5+ years building high-throughput distributed systems using Python, Kafka, and AWS. I own production architecture end-to-end, delivering measurable cost and reliability improvements.

I’ve led major streaming and telemetry redesigns (handling 100K+ sustained events/sec), migrated managed Kafka across providers to cut costs, and built multi-tenant platforms and AWS media workflows. I’m focused on robust releases, correct operational practices, and automation-friendly system design.

  • 5 years' experience
  • Joined July 2026

Languages

  • Spanish; CastilianFluent
  • EnglishFluent
  • FrenchIntermediate

Industry experience

  • Software & Internet
  • Telecommunications
  • Media & Entertainment
  • Financial Services
  • Professional Services

More experts in Granada, Spain

Work experience· 5 roles

Senior Backend Engineer · PlénitasJan 2025 – Jul 2026 · 1 yr 7 mos

Led a redesign of playback telemetry for 100K+ sustained events/sec by publishing directly to Kafka and removing RabbitMQ from the critical path. Migrated managed Kafka from Confluent Cloud to Amazon MSK, reducing streaming costs by 80%. Built a Kafka-based viewing-progress service for a seven-figure user platform using event coalescing to reduce Redis write pressure. Designed AWS media workflows covering live ingestion, adaptive delivery, clipping, transcoding, and transcription. Built a multi-tenant MCP platform with token-derived isolation, tenant-scoped GraphQL tools, human approval for writes, and RAG over 100+ Confluence pages.

Python Backend Engineer · Deutsche TelekomNov 2023 – Jul 2025 · 1 yr 9 mos

Developed and operated 10+ production microservices with Python/FastAPI and PostgreSQL on AWS using Docker, Kubernetes, and Helm. Owned releases from application versioning through environment promotion, and diagnosed/resolved production failures caused by incorrectly applied database migrations.

Full Stack Engineer · WorkdeckFeb 2023 – Nov 2023 · 10 mos

Built Python/FastAPI services and Angular features for a multi-tenant SaaS platform serving ~30 customer organizations. Delivered Shopify, LinkedIn, and Google integrations plus event-driven AWS workflows and containerized cloud deployments.

Full Stack Engineer · nucleooJan 2022 – Feb 2023 · 1 yr 2 mos
Junior Full Stack Developer · CXPLUSFeb 2021 – Jan 2022 · 1 yr

Education

BSc in Computer Science · University of Granada2017 – 2021
BSc in Computer Science · University of Granada2017 – 2021

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