AWS Lambda Specialists Serverless Framework Experts

AWS Serverless Development

Build applications that scale automatically, cost nothing when idle, and free you from server management. We are specialists in AWS Lambda, API Gateway, and the modern serverless ecosystem.

AWS Lambda API Gateway React on S3 Node.js / Python / C#

Why Go Serverless?

Serverless is not just a technology choice. It is a fundamentally different way of building applications that eliminates infrastructure management, scales automatically with demand, and only charges you for what you use. No more paying for idle servers or guessing capacity requirements.

We have been building serverless applications on AWS since Lambda launched. Our team has deep expertise across the entire serverless stack, from Lambda functions in multiple languages to React frontends hosted on S3 with CloudFront. We know how to architect applications that are fast, reliable, and cost-effective.

200+ Lambda Functions Deployed
99.99% Uptime Achieved
70% Average Cost Reduction
React / Vue Frontend on S3
CloudFront CDN
API Gateway
Lambda Functions
DynamoDB / RDS / S3

Lambda Specialists

AWS Lambda is at the heart of everything we build. We have mastered the art of writing efficient, scalable functions that handle millions of invocations without breaking a sweat.

Multi-Language Expertise

We build Lambda functions in Node.js, Python, and C# (.NET). Each language has its strengths and we choose the right tool for each job.

Performance Optimisation

Cold starts, memory tuning, connection pooling, and provisioned concurrency. We know how to make Lambda functions fast and keep them fast.

Event-Driven Architecture

Lambda shines when triggered by events. We design systems that react to S3 uploads, SQS messages, DynamoDB streams, and API calls.

Infrastructure as Code

Every Lambda we deploy is defined in code using AWS CDK, Serverless Framework, or SAM. Repeatable, version-controlled, and auditable.

API Gateway / ALB
Lambda (Node.js / Python / C#)
Event Sources (SQS, SNS, S3)
Data Layer (DynamoDB, RDS)
CDK / Serverless Framework

Our Serverless Services

Lambda Function Development

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We build Lambda functions that are fast, reliable, and maintainable.

  • Node.js Functions: Express-style APIs, real-time processing, and integrations with npm ecosystem
  • Python Functions: Data processing, ML inference, scripting, and automation tasks
  • C# (.NET) Functions: Enterprise applications, complex business logic, and .NET ecosystem integration
  • Performance Tuning: Memory optimisation, cold start reduction, and provisioned concurrency
  • Testing & Monitoring: Unit tests, integration tests, X-Ray tracing, and CloudWatch dashboards
AWS Lambda Node.js Python C# .NET

API Development with API Gateway

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Build secure, scalable REST and WebSocket APIs that handle any load.

  • REST APIs: Full CRUD operations with request validation, throttling, and caching
  • HTTP APIs: Lower latency, lower cost alternative for simpler use cases
  • WebSocket APIs: Real-time bidirectional communication for chat, notifications, and live updates
  • Authentication: Cognito authorizers, Lambda authorizers, and API keys
  • Documentation: OpenAPI/Swagger specs, developer portals, and usage plans
API Gateway REST API HTTP API WebSocket

React & Frontend on S3

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Modern single-page applications hosted on S3 with global CDN delivery.

  • React Applications: Component-based UIs with hooks, context, and modern patterns
  • Vue.js Applications: Progressive framework for building user interfaces
  • Static Site Hosting: S3 bucket configuration with proper permissions and error handling
  • CloudFront CDN: Global edge caching, HTTPS, and custom domain configuration
  • CI/CD Pipelines: Automated builds and deployments on every commit
React Vue.js S3 CloudFront Route 53

Serverless Frameworks & Infrastructure as Code

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We define everything in code for repeatable, auditable deployments.

  • AWS CDK: Define infrastructure using TypeScript, Python, or C# with full IDE support
  • Serverless Framework: Simple YAML configuration for rapid Lambda deployment
  • AWS SAM: Native AWS tooling for serverless applications
  • Terraform: Multi-cloud infrastructure provisioning when needed
  • CloudFormation: Direct AWS template authoring for complex requirements
AWS CDK Serverless Framework SAM Terraform

Event-Driven Architectures

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Build loosely coupled systems that scale independently and handle failures gracefully.

  • SQS Queues: Decouple components with reliable message queuing
  • SNS Topics: Fan-out messages to multiple subscribers
  • EventBridge: Event bus for application integration and scheduling
  • Step Functions: Orchestrate complex workflows with visual state machines
  • DynamoDB Streams: React to database changes in real-time
SQS SNS EventBridge Step Functions

Data Storage & Databases

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Choose the right database for your workload, optimised for serverless access patterns.

  • DynamoDB: Serverless NoSQL with single-digit millisecond performance at any scale
  • Aurora Serverless: Relational database that scales automatically
  • RDS Proxy: Connection pooling for Lambda to traditional RDS databases
  • S3: Object storage for files, data lakes, and static assets
  • ElastiCache: In-memory caching for session data and frequently accessed content
DynamoDB Aurora Serverless RDS Proxy S3

What We Build with Serverless

Real applications solving real problems

Data Processing Pipelines

Process files, transform data, and load into warehouses. Handle millions of records without managing infrastructure.

  • S3 trigger processing
  • ETL with Step Functions
  • Real-time streaming
  • Data lake ingestion

Internal Tools & Dashboards

Custom business applications for your team. Admin panels, reporting tools, and workflow automation.

  • Role-based access control
  • Real-time updates
  • Export and reporting
  • Integration with existing systems

APIs & Microservices

Backend services that power mobile apps, partner integrations, and internal systems.

  • REST and GraphQL APIs
  • Webhook endpoints
  • Third-party integrations
  • API versioning

Real-Time Applications

WebSocket-powered apps for live updates, chat, notifications, and collaborative features.

  • WebSocket API
  • Push notifications
  • Live collaboration
  • Real-time dashboards

Automation & Integration

Connect systems, automate workflows, and eliminate manual processes.

  • Scheduled tasks
  • System integration
  • Workflow automation
  • Legacy system bridges

Our Serverless Technology Stack

Deep expertise across the AWS serverless ecosystem

Compute

AWS Lambda Specialist
Lambda@Edge
Step Functions
Fargate (when needed)

Languages & Runtimes

Node.js / TypeScript Primary
Python
C# / .NET
Go

Frontend

React Primary
Vue.js
Next.js
S3 + CloudFront

Frameworks & IaC

AWS CDK Primary
Serverless Framework
AWS SAM
Terraform

APIs & Integration

API Gateway
AppSync (GraphQL)
EventBridge
SQS / SNS

Data & Storage

DynamoDB
Aurora Serverless
S3
ElastiCache

Why Serverless with Cloudavian

The benefits of serverless, delivered by experts

1

Zero Server Management

No patching, no capacity planning, no 3am alerts

2

Automatic Scaling

Handle 10 or 10 million requests without config changes

3

Pay Per Use

Only pay when code runs, nothing when idle

4

Faster Delivery

Focus on features, not infrastructure

5

Built-in Resilience

AWS manages availability across multiple AZs

Why Choose Cloudavian for Serverless

Proven expertise that delivers results

Lambda Since Day One

We have been building on Lambda since it launched. We have seen every pattern, solved every problem, and know what works.

Multi-Language Mastery

Node.js, Python, or C#. We choose the right language for your use case and write idiomatic, maintainable code in each.

Full-Stack Capability

From React frontends to Lambda backends to DynamoDB data modelling. One team, complete solutions.

Production Hardened

We have run serverless applications at scale in production. We know how to monitor, debug, and optimise real systems.

Infrastructure as Code

Everything we build is defined in CDK, Serverless Framework, or SAM. Repeatable deployments, version-controlled infrastructure.

Wales-Based Partnership

Local team, direct communication. We are your long-term serverless partner, not a remote contractor.

Serverless FAQ

Common questions about serverless development

Is serverless really cheaper?

For most workloads, yes. You pay only for actual compute time, not idle servers. We have seen 70% cost reductions compared to EC2. For consistently high-traffic applications, we will help you evaluate the economics.

What about cold starts?

Cold starts are real but manageable. We use techniques like provisioned concurrency, optimised package sizes, and smart architecture to minimise their impact. For most applications, users never notice.

Can serverless handle our scale?

Lambda scales to thousands of concurrent executions automatically. We have built systems handling millions of daily requests. If you need even more, we configure reserved concurrency and account limits appropriately.

What if we need to migrate away?

Our code is clean and portable. Lambda functions are just functions. The business logic can run anywhere. We avoid deep AWS lock-in where practical while still using the best AWS services for each job.

Ready to Go Serverless?

Let us show you how serverless can transform your application development

AWS Lambda Specialists
Node.js, Python, C# Expertise
React Frontend Development
Infrastructure as Code