About Esteban (steven)
English
Native or bilingual
Spanish
Native or bilingual
Experience
- STUARTSenior Node.js Engineer (WebSocket, Redis, Kubernetes, Prometheus, TypeScript, AWS)November 2023 - May 2024 (6 months)Building real-time core backend infrastructure for Pan-European delivery logistics.Steven helped build and launch two business-critical projects providing realtime platform updates, routing millions of delivery requests every week across 100s of European cities. Helping Stuart maintain its reputation for hyper-reliability as well as introducing improvements to company-wide engineering, QA and security practice.Redis PubSub, Event-based architecture, WebSocket protocol, Node.js, Express, TypeScript, OpenAPI, Kubernetes, AWS, DevOps, Prometheus, Thanos, Grafana. Kafka. Auto scaling. Graceful shutdown. Test automation. K6. SonarCloud. ZAP Scan. Authentication. JWT. ECDSA Web crypto API. Observability dashboards. Mentoring.
- Newcross Healthcare SolutionsSenior/Lead Node.js Engineer (Express, ORM, SQL Server, AWS, DevOps, SSO)May 2022 - September 2023 (1 year and 4 months)Lead Engineer for HFA team. "Uber for healthcare workers".Processing payments for thousands of health workers in both home and residential care setting. Focused on performance and stability fixes, CICD pipelines, upskilling new engineers, removing blockers, backend deployments and troubleshooting/ extending system.Express, FeathersJS, Kafka, Sequelize ORM, Promises, Asyc/Await, ES2021 , RESTful APIs, Jest, React, Babel, Webpack, Redis, RabbitMQ, SQL Server, DB Replication, Bitbucket, Github Actions, Monorepos, Docker, Kubernetes, Test Automation, GitOps, DevOps, Jenkins, Bash, AWS, EC2, S3, SQS, Serverless, Lambdas, CloudFront, CloudFormation, SNS, IAM, Load Balancing, SonarQube, SSL/TLS Certificates, New Relic Analytics. OAuth, Single Sign-On. Performance optimization. Debugging Production. Code Reviews and mentoring.
- LetMeParkChief Technology Officer / Founding EngineerFebruary 2021 - March 2022 (1 year and 1 month)Madrid, SpainSteven oversaw a growing technology team in an urban mobility startup, integrating further partner offerings, modifying architecture, CI/CD pipelines, and development practice to suit hybrid working arrangements, while staying on top of performance, security and operational issues caused by growing platform complexity and customer demand.Helping to build smart cities by connecting vehicles with their environment.
Recommendations
Be the first to recommend Esteban (steven)
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Bachillerato de Economía - Mercados FinancierosUniversidad de Tasmania1999
Certifications
- AWS Certified DeveloperAmazon Web Services2017