You will get a production-grade backend service built for scale
Project details
Some backend services are too important to hack together. This is for the one that has to hold up under real traffic, fail gracefully instead of falling over, and still be maintainable by your team a year from now.
I build it right from the foundation. We start with an architecture design doc and agree on scope before any code is written — so there are no surprises about what you're getting. Then I implement the full service: data layer, event handling, API, automated tests, and a CI/CD pipeline. Observability is built in from day one with Datadog monitoring, structured logging, and alerting, so production is something you can actually see and trust.
The stack is Node.js, TypeScript, PostgreSQL or MongoDB, Kafka for events, and AWS for infrastructure. If you need MCP or AI agent integration, that can be part of the scope — just flag it upfront.
After launch, I stay on for two weeks to handle fixes, tweaks, and your team's questions, so the handoff is smooth rather than a cliff.
I build it right from the foundation. We start with an architecture design doc and agree on scope before any code is written — so there are no surprises about what you're getting. Then I implement the full service: data layer, event handling, API, automated tests, and a CI/CD pipeline. Observability is built in from day one with Datadog monitoring, structured logging, and alerting, so production is something you can actually see and trust.
The stack is Node.js, TypeScript, PostgreSQL or MongoDB, Kafka for events, and AWS for infrastructure. If you need MCP or AI agent integration, that can be part of the scope — just flag it upfront.
After launch, I stay on for two weeks to handle fixes, tweaks, and your team's questions, so the handoff is smooth rather than a cliff.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, Security, DesignWhat's included $6,000
These options are included with the project scope.
$6,000
- Delivery Time 30 days
- Number of Revisions 0
About Danilo
Backend Engineer | Distributed Systems, AI Agents, Event-Driven | Node
Skopje, North Macedonia - 8:45 am local time
Currently Senior Backend Engineer at Deel. Here's what that looks like in practice:
→ 95% API latency reduction (4s → <200ms) — found via Datadog, fixed via query profiling
and index optimization
→ 400,000+ invoices/month processed reliably — sharded pipeline with idempotent deduplication
and zero duplicate ingestion
→ MCP-integrated AI workflows replacing thousands of manual contractor uploads — 90% faster
→ 50,000+ active users scaled; $5K/month operating costs cut via e-commerce rebuild
You're in the right place if:
"I need backend engineers who own performance end-to-end, not just write endpoints"
"We're moving toward AI-native architecture and need someone who's already built it"
"Our system works until it doesn't — I want it to just work"
I work best with teams that:
✅ Have real infrastructure challenges, not greenfield toy problems
✅ Value observability and reliability alongside delivery speed
✅ Are building toward scale, not just MVP
Working together, you get:
★ Distributed systems designed for fault tolerance from day one
★ MCP and agentic integrations that make your existing backend 10x more capable
★ Performance investigations backed by real metrics — not guesswork
★ Code your team can maintain without me holding their hand
MY STACK
- Back End: Node.js · TypeScript · GraphQL
- Databases: PostgreSQL · MongoDB · Redis · MySQL
- Messaging: Apache Kafka · WebSocket · event-driven architecture
- AI & Agents: MCP · agentic workflows · Claude API
- Cloud: AWS Lambda · Docker · CI/CD
- Monitoring: Datadog
Drop me a message — I'm happy to look at your architecture and tell you where the biggest
wins are.
Steps for completing your project
After purchasing the project, send requirements so Danilo can start the project.
Delivery time starts when Danilo receives requirements from you.
Danilo works on your project following the steps below.
Revisions may occur after the delivery date.
Write the architecture design doc
I map the data model, event flow, APIs, and infrastructure. We lock scope here before any code is written.
Build the full implementation
Data layer, event handling, and API built out with automated tests and a CI/CD pipeline.