Real-Time Streaming API
Created a Go-based real-time API and Chrome-powered scraper that tracked 128 roulette tables and emitted deduplicated live results over WebSockets.
- Real-Time Data
- Event Streaming
- Data Normalization
- Live Monitoring
US & Dominican Republic · Open to Remote or Hybrid
Carlos Olivo
I build backend systems for products that need to scale, integrate, and keep working.
Carlos Olivo
Most of my recent work has focused on APIs, infrastructure, and reliability across SaaS and travel-tech products. I work close to the product where architecture, integrations, and operational clarity matter, helping teams ship with confidence while keeping systems maintainable as they grow.
- SaaS Platform work
- Travel-tech Integration-heavy
- Reliability Delivery focus
What I deliver
- Product Infrastructure Backend foundations for multi-tenant products, operational workflows, and high-volume user activity.
- Workflow Automation Systems that remove manual steps, connect services, and keep business processes moving reliably.
- External Integrations Provider and platform connections that normalize data, handle edge cases, and support dependable operations.
- Reliability Improvements Performance, deployment, and monitoring work that reduces toil and keeps production systems stable.
Proof of work
Selected Case Studies
Backend and platform projects where integration reliability, event-driven architecture, and operational efficiency were the primary objectives.
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Sócrates
Built a curriculum-grounded exam platform for Dominican teachers that turns official MINERD sequences into editable DOCX exams, cutting preparation from 40 minutes to 10 minutes and from 90 minutes to 15 minutes for lower digital-skill users.
- Workflow Automation
- Document Intelligence
- Curriculum Grounding
- Teacher Productivity
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Hotel Connectivity & Quote Performance
Built hotel provider integrations and DAX-backed data paths that improved synchronization, quote responsiveness, and API consistency across travel inventory systems.
- Provider Integration
- Quote Performance
- Data Reliability
- Operational Efficiency
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Multi-Tenant SaaS Platform APIs
Built GraphQL and REST backends for multi-tenant SaaS products connecting insurers, service providers, agents, and internal operations.
- Multi-Tenant SaaS
- Platform APIs
- Workflow Systems
- Product Infrastructure
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Career path
Experience
Backend Developer — Hotel Connectivity & Quoting Systems
@ PriceTravel HoldingBuilt and maintained hotel provider integrations with SiteMinder, TravelClick, Omnibees, Gin RateFox, and TravelGate HotelX, enabling real-time rate and availability sync. Optimized existing Hotelbeds, DerbySoft, SynXis, and Expedia Rapid API connections for reliability. Developed DAX-backed materialized views for exchange rates and promotions, cutting quote query load and reducing currency retrieval latency.
Backend Developer — SaaS Platforms & Cloud Infrastructure
@ ListoApp (Chile)Reduced AWS Lambda cold start by 50% through pre-deployment bundling. Built event-driven notification systems with SNS and EventBridge. Delivered GraphQL APIs for multi-tenant SaaS platforms Sektor.app and Centuria.app using NestJS, TypeScript, and MongoDB. Created a real-time Go API for RoulettesView.com tracking 128 roulette tables via WebSockets. Automated deployments with GitHub Actions CI/CD.
Software Developer
@ DrimoBuilt cross-platform web and mobile applications with React. Maintained and optimized serverless APIs on AWS for reliability and cost efficiency. Developed features for a NestJS and GraphQL microservices ecosystem. Migrated the company’s blog and website to Next.js via automated web scraping, improving load speed and SEO.
Capability areas
Technical Focus
Backend engineering, platform delivery, and integration work — organized by capability area.
Cloud Delivery
Cloud Infrastructure
Building and operating AWS-backed SaaS platforms with automation, performance tuning, and delivery discipline.
Primary signal
AWS-based backends tuned for deployment speed, reliability, and lower-latency workloads.
- Cloud & infrastructure
- AWS (Lambda, SNS, EventBridge, DAX, S3), Docker, GitHub Actions
- Platform optimization
- Reduced Lambda cold starts, automated deployments, and background workers for production workloads
Full-Stack Systems
Full-Stack Delivery
Shipping product and platform systems across backend, frontend, and service layers with a strong emphasis on maintainability.
Primary signal
Product and platform work across JavaScript/TypeScript, .NET, and Go with maintainable service boundaries.
- Languages & runtime
- TypeScript, JavaScript, C#, Go, SQL, Node.js
- Frameworks & services
- NestJS, React, Next.js, .NET 8, GraphQL, Serverless Framework
Provider Connectivity
Connectivity & APIs
Designing integration-heavy systems that connect travel providers, quoting engines, and multi-tenant SaaS products.
Primary signal
Integration layers built for hotel providers, quoting flows, and event-driven service coordination.
- Provider integrations
- SiteMinder, TravelClick, Omnibees, Gin RateFox, TravelGate HotelX, and other travel APIs
- Data & caching
- PostgreSQL, MongoDB, Redis, DAX, DynamoDB
Next step
Let's build something that ships.
US-based, working with teams and products across the Dominican Republic. Open to backend, platform, and integration-heavy roles — remote or hybrid. If you need an engineer who improves systems and delivers reliably, let's talk.
Direct contact
Location
United States · Dominican Republic