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Cloud Golang Developers in Spain

Built high-reliability payment platforms and more than 200 microservice components using Go and Rust, alongside Web3 infrastructure, smart contracts, and cross-chain services. Maintains an open-source Go multi-agent workflow orchestrator and operates tier-one transaction-processing systems with failure-oriented deployment and observability models.

• Kubernetes platform engineering
• Prometheus and Grafana operational telemetry
• Docker-based deployment automation
• Cross-chain backend integration

Architected high-throughput Go services and Kubernetes platforms across GCP, Azure, and AWS, using asynchronous messaging and automated quality gates. Built a conversational messaging platform supporting webhook automation, real-time WhatsApp interactions, in-chat purchases, and digital payments.

• Cross-cloud Kubernetes operations
• CI/CD pipeline standardization
• Enterprise webhook processing
• Real-time payment messaging

Led the development of a real-time IoT data processing platform using Golang and Node.js, achieving high availability and fault tolerance. Spearheaded the creation of a scalable cloud-based infrastructure for a SaaS application.

• Implemented serverless architecture with AWS Lambda
• Developed custom plugins for data visualization tools
• Built a CI/CD pipeline for automated deployments

Architected a distributed enterprise data-exchange platform serving more than 600 applications across seven countries and approximately 70,000 daily transfers. Operated multi-petabyte streaming infrastructure across four production regions on OpenStack and AWS, and built an LLM-driven workflow execution product.

• Designed hybrid-cloud data movement across regions
• Built distributed API monitoring capabilities
• Integrated natural-language flow creation and debugging
• Developed GenAI-driven live workflow modification

Developed backend services for a social media platform, focusing on scalability and resilience. Implemented search functionalities with Elasticsearch, enabling real-time data retrieval and indexing.

• Configured Kubernetes clusters for improved resource allocation
• Streamlined CI/CD processes with Gitlab for faster deployments
• Deployed containerized applications using Docker on Google Cloud

Designed AWS serverless data pipelines with Step Functions and S3 to reduce service coupling and improve fault tolerance. Built Go services using concurrency and performance patterns across cloud products supporting education, healthcare, and AI-assisted workflows.

• Implemented workflows with Lambda, SQS, and ECS
• Built search capabilities with Elasticsearch and OpenSearch
• Developed AI tools using LangChain and LangSmith
• Provisioned infrastructure through Terraform and Kubernetes

Built production backend services in Go and .NET for automotive, logistics, food, and travel products, including PostgreSQL-backed APIs and containerized deployments. Designed a Flutter mobile application with modular architecture, REST integration, and end-to-end delivery infrastructure.

• Kubernetes deployment and operations
• AWS and Azure hosting workflows
• Legacy Visual Basic and PHP migration
• Client-facing logistics and purchasing systems

Built and shipped multiple SaaS products with Go, React, AWS ECS, RDS, Athena, Terraform, and GitLab CI/CD, covering backend delivery through infrastructure automation. Developed an IoT product with a Go backend and React Native client, while owning technical roadmaps for products and cross-functional delivery.

• Reduced e-commerce infrastructure costs by 30%
• Built AI integrations into SaaS workflows
• Created game-accessory e-commerce infrastructure
• Managed deployments across AWS data services

Architected Kafka pipelines spanning dozens of synchronized topics and thousands of events per second. Resolved cross-topic consistency through dead-letter retries and deduplication, then redesigned a production query path to reduce read latency tenfold.

• Established contract-first OpenAPI and Swagger practices
• Implemented Go concurrency and goroutine lifecycle patterns
• Defined Kafka delivery semantics and retry policies
• Led production incident reviews and reliability changes

Led modernization of legacy infrastructure into AWS cloud-native architectures using Terraform, Docker, and Kubernetes. Established high-availability platform patterns, standardized delivery pipelines, and embedded security and compliance controls for enterprise systems.

• SRE practices for production reliability
• GDPR and ISO governance implementation
• Distributed-team CI/CD standardization
• Infrastructure-as-code operating models

Develops Go services for an auditable corporate AI-agent platform using hexagonal architecture, Python components, Kubernetes, Argo, and GitHub Actions. Previously built Kotlin/Spring Boot and Go/Java microservices for media and ecommerce platforms, integrating Kafka and cloud-hosted third-party systems.

• Implemented payment and booking provider integrations
• Built webhook-driven backend functionality with Cognito
• Tested Go services using gomock, Ginkgo, and Gomonkey
• Created component tests with Mountebank

Developed large-scale distributed systems for financial transaction processing, optimizing for low latency and high throughput. Architected a microservices platform leveraging Golang and Kafka for real-time data streaming, supporting millions of transactions per day. Implemented advanced caching strategies using Redis to enhance system performance in a high-demand environment.

• Designed fault-tolerant message queues with RabbitMQ
• Built scalable database solutions with PostgreSQL and MySQL
• Integrated CI/CD pipelines for automated deployment and testing

Designed and implemented microservices architecture for a high-traffic e-commerce platform, optimizing service communication with REST APIs. Developed CI/CD pipelines using TeamCity to streamline deployment processes, reducing release time by 40%.

• Automated infrastructure provisioning with Bash scripts
• Integrated third-party payment gateways via RESTful services
• Implemented logging and monitoring solutions for microservices
• Optimized database queries to improve API response times

Developed major features for Kubernetes operators managing PostgreSQL clusters, including work on the CloudNativePG ecosystem. Designs database-heavy systems with Go, SQL, PostgreSQL, MySQL, Kubernetes, and PostGIS, spanning cloud-native operations, catastrophe modeling, and geospatial visualization.

• PostgreSQL Kubernetes operators
• PostGIS catastrophe-risk applications
• Prometheus and Grafana instrumentation
• Ciclops CI/CD test intelligence