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Emilio Arevalillo González

@emilioag

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Senior software engineer specializing in scalable backend systems, cloud architecture, and team leadership.

Spain

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What I'm looking for

I seek senior roles building scalable backend/platform systems with strong engineering culture, observability, and opportunities to mentor and lead.

I am a senior software engineer with 13+ years building scalable backend systems, cloud-native architectures (AWS/GCP), and data-driven platforms. I have led platform and backend teams, designed Domain-Driven services, integrated ML pipelines, and delivered high-availability solutions across IoT, fintech, and medical AI domains.

My achievements include leading platform engineering at Fresco, building IoT backends at Vital, and managing engineering teams and roadmaps at Wagestream. I prioritize observability, asynchronous architectures, performant data models, and mentorship to drive reliable production systems and continuous improvement.

Experience

Work history, roles, and key accomplishments

Current

Platform Engineer

Current

Fresco

Aug 2023 - Present (2 years 2 months)

Led design and development of six domain-driven platform services to improve scalability and resilience, implemented async messaging with SQS/EventBridge and Datadog observability to reduce incident MTTR and support large-scale data processing.

Python fastAPI AWS DynamoDB SQS EventBridge Datadog Elasticsearch

Software Engineer

Vital

Oct 2022 - Aug 2023 (10 months)

Developed and optimised backend systems for IoT health-data ingestion and real-time processing using Python/FastAPI, GCP Pub/Sub and Cloud Run, improving throughput and reducing latency for wearable data pipelines.

Python fastAPI PostgreSQL Redis Async Programming Datadog

Engineering Manager

Wagestream

Sep 2021 - Oct 2022 (1 year 1 month)

Defined application roadmap for European expansion and led customer integrations, built backend systems with Celery and AWS services (SQS, S3) and automated deployments with AWS CDK to improve reliability and onboarding speed.

Python Flask Celery SQS AWS S3 AWS CDK CI CD Team Leadership

Technical Lead

Xfera Consumer Finance

Dec 2020 - Sep 2021 (9 months)

Led backend development of a credit-card issuance platform using Python/FastAPI and PostgreSQL, implemented hexagonal architecture, CI/CD to GCP and log/monitoring pipelines for real-time insights.

Python fastAPI PostgreSQL GCP)Apache Beam BigQuery Docker CI CD

Technical Lead

MMG AI

Apr 2019 - Dec 2020 (1 year 8 months)

Defined technology and architecture across AI projects; led development of Dentomo (SaaS dental image processing) and DeepAImed, implementing distributed processing with Kafka, Celery and scalable storage to improve throughput for large datasets.

Kafka Celery Redis Python PostgreSQL MongoDB Docker Distributed Systems

Software Engineer

Openshine

Sep 2016 - Apr 2019 (2 years 7 months)

Led development of a distributed ETL and analytics system for a PPV platform, migrating infrastructure to Kubernetes and building APIs and dashboards to enable high-volume data processing and visualization.

Kafka Elasticsearch PostgreSQL Docker Kubernetes Helm Python

Software Engineer

Telefónica I+D

May 2015 - Sep 2016 (1 year 4 months)

Contributed to backend development and containerisation of a trouble-ticketing tool, implemented Redis/Memcache caching, Celery/RabbitMQ async tasks and Elasticsearch indexing to improve performance and maintainability.

Docker MySQL MongoDB Celery RabbitMQ Elasticsearch Memcache

Assistant Project Manager

Archibus Solution Center

Feb 2014 - May 2015 (1 year 3 months)

Managed projects and developed Archibus custom modules, performed Java development and database modelling for Oracle and SQL Server, and automated deployments with Python scripting to improve client integrations.