Back-End Development
Accepting Projects

The Engine
Powering Your
Product

Scalable APIs, rock-solid databases, real-time infrastructure, and cloud architecture that handles whatever you throw at it. We build the invisible layer that makes your product feel magical โ€” fast, reliable, and ready to grow.

๐ŸŸฉNode.js
๐ŸPython / Django
๐ŸนGo
๐Ÿ˜PostgreSQL
โ˜๏ธAWS / GCP
50+
APIs Shipped
99.99%
Avg Uptime SLA
<12ms
P99 Latency
10M+
Req/Day Handled
๐ŸŒAPI GATEWAY๐Ÿ”AuthโšกCore API๐Ÿ“ฌQueueโšกCache๐Ÿ”Search๐Ÿ—„๏ธPostgreSQLโšกRedisREQ/s12400
BLENVO SRV
API
AUTH
ERR
CACHE
DB
LOG
CDN
MON
99.99% uptime
Last 12 months
< 12ms P99
API response
10M+ req/day
Peak load tested
Our Back-End Stack
Node.js
Python
Go
Rust
PostgreSQL
MySQL
MongoDB
Redis
GraphQL
REST
gRPC
WebSockets
Kafka
RabbitMQ
Docker
Kubernetes
AWS Lambda
GCP Cloud Run
Terraform
CI/CD
Jest
Playwright
Prometheus
Grafana
Node.js
Python
Go
Rust
PostgreSQL
MySQL
MongoDB
Redis
GraphQL
REST
gRPC
WebSockets
Kafka
RabbitMQ
Docker
Kubernetes
AWS Lambda
GCP Cloud Run
Terraform
CI/CD
Jest
Playwright
Prometheus
Grafana
What We Build

Six Back-End
Disciplines

APIs
โšก

REST & GraphQL APIs

Clean, versioned, documented APIs that developers love to work with. OpenAPI specs, automatic SDK generation, and rate limiting from day one. We've shipped APIs processing millions of requests daily.

Real-Time
๐Ÿ”Œ

Real-Time Systems

WebSocket servers, Server-Sent Events, and pub/sub messaging for live dashboards, collaborative tools, notifications, and event-driven workflows. Low-latency, horizontally scalable.

Databases
๐Ÿ—„๏ธ

Database Architecture

Schema design, indexing strategy, query optimisation, read replicas, and migration pipelines. We choose the right database for each data shape โ€” relational, document, cache, or search.

Microservices
๐Ÿงฉ

Microservices & Event Buses

Domain-driven service decomposition with Kafka, RabbitMQ, or SQS for reliable async messaging. Saga patterns, dead-letter queues, and distributed tracing included.

Auth
๐Ÿ”

Auth & Identity

OAuth 2.0, OIDC, JWT, passkeys, MFA, and RBAC. We implement auth that's secure by default without making users jump through hoops. SSO integrations with Okta, Auth0, and custom IdPs.

Cloud
โ˜๏ธ

Cloud Infrastructure

AWS, GCP, or Azure โ€” Terraform-provisioned, auto-scaling, multi-region deployments. We build infrastructure-as-code from the start so your environment is reproducible and auditable.

50+
APIs in Production
across multiple industries
99.99%
Uptime SLA
delivered & maintained
<12ms
P99 API Latency
on optimised endpoints
0 breaches
Security Record
across all live systems
Architecture

Systems That
Scale Without Breaking

Every backend we build starts with a system design review. We map traffic patterns, data relationships, and failure modes before writing a single line of code. The result is infrastructure that grows with your business, not against it.

Client Layer
3 nodes
API Gateway
3 nodes
Service Layer
4 nodes
Data Layer
4 nodes
System architecture โ€” live traffic
Client Layer
Web App
Mobile App
3rd Party
API Gateway
Rate Limiting
Auth Middleware
Load Balancer
Service Layer
User Service
Payment Service
Notification
Analytics
Data Layer
PostgreSQL
Redis Cache
Elasticsearch
S3 Storage
LIVE
142 req/s
Our Process

12 Weeks.
From Design to Production.

Week 1โ€“2

System Design & Spec

We map your data model, API contracts, traffic patterns, and third-party integrations. You receive a full technical spec โ€” ERD, API schema, and infrastructure diagram โ€” before any code is written.

๐Ÿ“
Week 3โ€“4

Foundations & DevOps

Repository setup, CI/CD pipeline, environments (dev/staging/prod), Docker configuration, and secrets management. Every future engineer on the project gets a clean, documented starting point.

โš™๏ธ
Week 5โ€“9

Core Development Sprints

Two-week Agile sprints delivering working API endpoints, database migrations, and integrated services. Daily standups, shared Postman collections, and Swagger docs updated in real time.

๐Ÿ”ง
Week 10โ€“11

Load Testing & Hardening

We run Artillery / k6 load tests to 10ร— expected peak. Any bottlenecks are found and fixed before a user ever touches the system. Security pen-test and dependency audit in the same sprint.

๐Ÿงช
Week 12

Launch & Handoff

Production deployment with zero-downtime rollout. Full documentation handoff: API reference, runbooks, infrastructure diagrams, and on-call playbooks. Your team owns it from day one.

๐Ÿš€
Ongoing

Monitoring & Evolution

We watch your dashboards, triage alerts, review slow query logs, and plan the next architecture milestone. On-demand sprints for new features or scaling events โ€” no retainer required.

๐Ÿ“ˆ
Capabilities

What Goes Into
Every System We Build

Speed That Scales.

We profile every endpoint before it ships. Connection pooling, query plan analysis, caching layers, and CDN edge workers mean your API responds fast at 1 req/s and still fast at 10,000.

P99 latency targets set during spec phase
pg_stat_statements query optimisation
Redis caching with cache-invalidation strategy
Connection pooling via PgBouncer / Drizzle
performance.log
01
Observability

We Build Systems
You Can Watch Live

Every system we ship comes with a live monitoring dashboard like this one. Real-time latency, error rates, and service health โ€” so you always know what's happening.

production.dashboard โ€” Grafana
LIVE
API Response Latency (ms)
11ms
-15mnow
Service Health
API Gateway3ms8,420/m
User Service8ms3,210/m
Payment Service12ms480/m
Cache (Redis)1ms12,400/m
PostgreSQL6ms4,100/m
Notification18ms210/m
Error Rate (5xx)
API Gateway0.02%
User Service0.01%
Payment Service0.00%
Throughput
8,420
requests / min
Use Cases

Real Systems.
Real Complexity.

Great back-ends solve hard problems invisibly. Here's how we've done that across five different industries and five very different technical challenges.

Fintech
High-frequency payment processing engine

A payments startup needed a backend capable of processing 500+ transactions per second with idempotency guarantees, automatic retries, and real-time fraud scoring. We built a Go-based event-driven system on AWS, integrated with Stripe and a custom risk engine, hitting 99.999% uptime in production.

SaaS
Multi-tenant API with row-level security
MarketPlace
Real-time bidding and matching engine
HealthTech
HIPAA-compliant data pipeline
Media
CDN-backed media serving and transcoding
Why Blenvo

What Sets Us
Apart

๐Ÿ“

System Design First

Every engagement starts with a system design review. You'll have an architecture diagram, API schema, and data model before any code is written. No surprises mid-build.

๐Ÿงช

Load Tested Pre-Launch

We run load tests to 10ร— your expected peak traffic before every production deployment. If something breaks, it breaks in staging โ€” not in front of your users.

๐Ÿ“š

Docs You Can Actually Use

Every API ships with Swagger / OpenAPI docs, example requests, and SDK snippets. Your frontend team won't spend hours guessing what a field does.

๐Ÿ”’

Security in the Architecture

We threat-model at design time, not after the fact. Secrets management, parameterised queries, dependency scanning โ€” not bolt-ons, but foundations.

Cloud Platforms

We Deploy On
Your Cloud of Choice

โ˜๏ธ
AWS
Amazon Web Services
EC2 / ECS / Lambda
RDS / DynamoDB / S3
CloudFront / Route 53
SQS / SNS / EventBridge
IAM / Secrets Manager
๐ŸŒ
GCP
Google Cloud Platform
Cloud Run / GKE
Cloud SQL / Firestore
Cloud CDN / Cloud DNS
Pub/Sub / Cloud Tasks
Secret Manager / IAP
โšก
Azure
Microsoft Azure
App Service / AKS
Azure SQL / Cosmos DB
Azure CDN / Front Door
Service Bus / Event Grid
Key Vault / AAD
Ready to Build?

Your Back-End.
In Production
In 12 Weeks.

Book a free architecture call. We'll review your idea, challenge your assumptions, and tell you exactly what it will take to build something that won't let you down at scale.

$ curl https://api.yourproduct.com/health
{ "status": "healthy", "uptime": "99.99%" }
โœ… No upfront paymentโœ… NDA on day oneโœ… Dedicated tech lead