🔗 Service design
REST APIs, background workers, idempotent jobs, queues, caching and graceful degradation for high-change products.
Node.jsTypeScriptPythonREST
Available for backend architecture work
Arjun Mehta / 2026
01 - Infrastructure with a pulse
Make the core
unshakeable.
I design backend systems where APIs, queues, databases and observability behave like a single living nucleus: coordinated, measurable and ready for the next request.
01 / Profile
Reliable at the center.
My work sits below the interface: turning product requirements into clear service boundaries, durable data flows and APIs that are easy to operate. I care about failure modes as much as happy paths.
7Years building backend systems
99.98%Target service availability
42Production services shipped
18msp95 API latency goal
02 / Systems
The backend nucleus.
A practical stack shaped around throughput, correctness and operability, not technology for its own sake.
API GATEWAY
EVENT BUS
POSTGRES
OBSERVABILITY
🗄️ Data & runtime
Schema design, query tuning, transactional boundaries and containerized deployments with metrics that expose the real bottleneck.
PostgreSQLRedisKafkaDocker
✅ Engineering habits
Contract-first thinking, focused tests, structured logs and incident-aware design from the first architecture sketch.
OpenTelemetryCI/CDTestingSRE mindset
03 / Builds
Systems under load.
Selected backend work framed by the problem, the architecture and the measurable outcome.
POST /v1/orders
202 Accepted
queue: order-events
latency: 21ms
OrderFlow Core
Event-driven order orchestration with idempotent consumers and retry-safe fulfillment state.
GET /v2/search?q=...
200 OK
cache-hit: true
p95: 18ms
QueryMesh
Low-latency search API with cache-aware reads, connection pooling and workload-aware pagination.
worker reconcileBilling()
batch complete
records: 184,204
duration: 44s
Ledger Worker
Background reconciliation pipeline designed around deterministic jobs, checkpoints and auditable outcomes.
trace checkout-service
error budget healthy
p99: 94ms
coverage: 91%
Signal Room
Observability layer joining traces, structured logs and service-level signals into one operating view.
04 / Track
From endpoint to ecosystem.
Senior Backend Engineer · Northstar Labs
Leading service architecture for a multi-tenant platform, with a focus on asynchronous workflows, database performance and production reliability.
Backend Engineer · Loopline Systems
Built customer-facing APIs and internal workers, introduced contract testing and helped move critical workloads toward event-driven processing.
Software Engineer · Meridian Digital
Developed transactional services, reporting pipelines and integrations while building a strong foundation in SQL, testing and operational debugging.
05 / Connect