You want speed and reliability without having to hire more people to run your business. BYBOWU's "serverless web development" service makes apps that are ready for production, can automatically scale, and only costs you for what you use. We design, build, and improve serverless architecture services that help businesses reach their goals faster, at lower costs, and with happier users. We work with AWS Lambda, Azure Functions, and Vercel for Next.js.
Decision makers choose BYBOWU because it has a clear ROI, secure cloud patterns, and a build process that your team can own from the start. Serverless doesn't mean there are no servers. It means you don't take care of them. Functions as a Service (FaaS), such as Lambda or Azure Functions, run compute on demand. Managed platforms like DynamoDB, Cosmos DB, S3, and EventBridge store data and services. On the front end, platforms like Vercel deploy Next.js with serverless and edge functions close to users to make it faster.
Why is this important? You can quickly launch new features, automatically scale, and cut down on operational work, which lets your team focus on the product instead of fixing servers or tuning autoscaling groups.
- FaaS: Event-driven functions for APIs, jobs, and workflows.
- BaaS:Managed databases, queues, auth, and storage that take care of heavy lifting.
- Edge:Run logic at the edge for ultra-low latency personalization and caching.
When built with the right patterns, serverless works.
- Auto-scaling by default: You don't have to set up anything ahead of time to handle traffic spikes. Good for launches, times of high demand, and viral events.
- Pay-per-use: You only pay for storage and computing power when you use them.
- Faster time-to-market: Build with managed services and focus on product differentiation.
- High availability: Built-in multi-AZ resilience with managed services like DynamoDB and S3.
- Security posture: Tight IAM permissions, encrypted storage, private networking, and managed runtime updates.
- Greener footprint: Efficient resource utilization lowers waste and cost—good for budgets and ESG goals.
Bottom line: serverless web apps help you ship faster, scale smoothly, and reallocate spend from infrastructure to growth.
Our serverless development process
Decision-stage buyers need predictability. Our method lowers risk and connects each step to business results.
1) Discovery & ROI model
Clarify objectives, SLAs, and constraints. Make a cost model that compares serverless with container or VM methods. Set up data, queues, and event flows. SST/Serverless Framework, CDK, Bicep, or Terraform are some examples of frameworks. Tests that run automatically and tests that check for peak readiness. Check out our other services and see how serverless fits in with your web or mobile stack. We choose patterns that have been tested and proven to work that don't lock you into a dead end.
- Event-driven architecture: EventBridge/Service Bus orchestrate decoupled services with retries and DLQs.
- Serverless APIs: REST via API Gateway or GraphQL via AppSync/Azure Functions with Apollo.
- Queues and streams: SQS/SNS, Azure Storage Queues, or Kinesis for async workloads and back-pressure handling.
- Data layer: DynamoDB/Cosmos DB for scale, RDS/Aurora Serverless for relational needs, and S3/Blob for assets.
- Edge acceleration: Vercel Edge Functions / CloudFront for caching, auth prechecks, and geo-personalization.
- IaC and CI/CD: CDK/Terraform pipelines with GitHub Actions or Azure DevOps for repeatable releases.
Performance and cost optimization
We design for speed and efficiency from day one. Some of the strategies are connection reuse (HTTP keep-alive), optimized bundling, warm paths, and caching layers (Lambda@Edge, API Gateway caching, Redis-compatible caches). We look at provisioned concurrency or edge execution for APIs that get a lot of traffic to lessen the effects of cold starts.
- Cold-start mitigation: Lightweight handlers, fewer dependencies, and regional placement close to users.
- Right-sizing: Memory/CPU tuning for lowest p95 latency at optimal cost.
- Cost controls: Budgets, anomaly alerts, and architecture choices that avoid chatty patterns and excess invocations.
Pricing clarity: when serverless is cheaper
Is serverless always cheaper? Not always, but it's hard to beat for workloads that are spiky or hard to predict. You don't pay for idle capacity with pay-per-execution. We might suggest a hybrid (serverless + containers) for systems with steady, high throughput to get the best balance of cost and latency. Before we start coding, we make a clear cost model and then check it with load tests. Before you launch, you'll see how the number of requests, memory, and concurrency settings affect performance and spending. Customers save 25% to 50% on typical SaaS APIs compared to always-on infrastructure, and they also have much less operational overhead. Want to know how much your case will cost? Check out our pricing guide and we'll make a scenario that fits your traffic patterns and SLA.
Case studies: outcomes, not just architecture
Ecommerce flash-sale platform
Migrated a sale engine to Lambda + API Gateway with DynamoDB and SQS. As a result, we were able to handle 20 times as much traffic without any timeouts, checkout p95 latency was less than 220ms, and infrastructure costs were 43% lower during off-peak months. In the first quarter, the operations team cut incident hours by 60%.
Built an event-driven pipeline with Azure Functions, Event Grid, and Cosmos DB. Result: 99.95% processed within SLA, zero data loss with DLQs, and analytics available in minutes instead of hours—supporting a new premium tier and +18% ARPU.
Want to see more wins like this? Check out some of our chosen projects in our portfolio.
Security isn't an add-on; it's the blueprint. We follow cloud best practices and your compliance needs from the start.
- IAM and secrets: least-privilege roles, short-lived credentials, and secret managers (AWS Secrets Manager/Azure Key Vault).
- Network hardening: private subnets/VNET integration, WAF, and rate limiting at the edge/API layer.
- Data protection: encryption at rest and in transit, TTLs and data retention policies, audit logs, and anomaly detection.
- Resilience: retries with backoff, idempotency keys, dead-letter queues, and chaos testing for failure readiness.
Is serverless hosting less expensive than traditional hosting? Often—especially when workloads are different. You only pay for requests and compute time, so there is no charge for servers that aren't being used. A hybrid approach may be cheaper if you need a steady, high throughput. We make a model that you can see next to each other so you can choose based on data, not guesswork.
What apps work well? APIs, back-office tools, content sites on Next.js, event pipelines, scheduled jobs, and e-commerce traffic that comes in bursts are all good examples. Containers might be better for ultra-low-latency trading or long-running tasks, but we can still use functions to handle some tasks (like webhooks and image processing).
How do you deal with cold starts? We make packages smaller, reuse connections, pick the right runtimes, and use provisioned concurrency or edge execution for important paths. We also plan caches and warmup methods to keep performance steady even when there is a lot of work to do.
What about vendor lock-in?
We separate business logic, use abstractions when it makes sense, and like IaC that can be moved around. We write down your options and exit paths so you don't feel stuck later. Some managed services are worth the trade-off.
Can you move an app that already exists? Yes. We usually begin with strangler-fig migrations, which involve moving certain endpoints or jobs to functions, adding event streams, and slowly shutting down old components to lower risk and downtime.
Ready to scale—without servers to manage?
We will create your reference architecture, model costs, and give you a launch plan in days, not weeks. No vague promises, just a clear way to get value. Scale without servers—schedule your serverless consultation now. You can email us at [email protected] or go to contact.