AWS
Development
Get an estimate
AWS

AWS Development Services for Applications That Scale Without Surprise Bills

Our AWS development services build and modernize enterprise apps on Amazon Web Services: serverless APIs, Redshift data platforms and generative AI on Amazon Bedrock. Senior engineers own architecture and delivery, so your estate scales with demand without an AWS bill nobody can explain.

200+ enterprises transformed
500+ domain trained professionals
US & India delivery centres
TYPICAL TARGET ARCHITECTURE
Amazon ECS on Fargate
Containers
AWS Lambda + API Gateway
Event APIs
Amazon Aurora PostgreSQL 16
Data layer
Amazon Bedrock
AI layer
Trusted by enterprise clients who demand real-world impact
IS .NET RIGHT FOR YOU

Where AWS Is the Right Choice, and Where It Isn't

AWS development services cover the design, build, migration and operation of software on Amazon Web Services. That means cloud-native apps, serverless APIs on AWS Lambda, data pipelines on Kinesis and Redshift, and generative AI on Amazon Bedrock. It also covers the infrastructure as code, CI/CD and security controls that keep those workloads stable.

Choose AWS when

✓  Your traffic is spiky or hard to forecast. Lambda, Fargate and DynamoDB on-demand scale with requests and shrink back when the spike passes. You pay for the load you get, not the peak you feared.

✓  You're leaving Oracle, SQL Server or an aging data center. AWS has proven tools for the move: DMS, Schema Conversion, Application Migration Service, and AWS Transform for .NET and mainframe code. Landing on Aurora PostgreSQL also takes database licensing off the bill.

✓  You sell into regulated industries. AWS signs a HIPAA Business Associate Addendum, runs GovCloud for FedRAMP High work, and hands out audit reports through AWS Artifact. That shortens security reviews, because your buyers' auditors already know the platform.

✓  You want generative AI without moving your data. Amazon Bedrock runs models from Anthropic, Meta, Mistral and Amazon, with private access over PrivateLink. AWS states that your prompts and outputs are not used to train the base models.

Where we'd tell you not to

> Your estate runs on Microsoft. If identity lives in Entra ID and your apps run on .NET Framework and Windows Server, Azure is usually the simpler home. Azure Hybrid Benefit can also cut licensing cost under an existing Microsoft agreement. Our dedicated Azure developers can scope that path.

> Your app is small, steady and simple. An internal tool with flat traffic doesn't need VPC design, IAM policy reviews and a multi-account landing zone. A managed platform such as Heroku or Vercel, or an off-the-shelf SaaS product, will cost less to run and hand over.

> Your load is heavy, flat and around the clock. Large steady compute or egress-heavy work, such as video delivery, can cost less on dedicated hardware in a colocation facility. Run a three-year cost model for both before you commit to either.

WHAT WE BUILD

Our AWS Development Services

Six kinds of AWS work we take on, each listed with the services we'd actually reach for.

Custom AWS Cloud Application Development

AWS application development for web, mobile and SaaS products, cloud-native from sprint one. We pick compute per workload, define infrastructure in AWS CDK, and wire in IAM, logging and cost tags early. Amplify Gen 2 covers front ends that need to move fast.

AWS Amplify Gen 2, AWS AppSync, Amazon ECS on Fargate, Amazon Aurora PostgreSQL, AWS CDK v2

Legacy Modernization and Migration to AWS

The best AWS development service for legacy modernization starts with a dependency map, not a lift-and-shift quote. Oracle and SQL Server move to Aurora through DMS, and monoliths split along a strangler-fig path. It is the same method behind our application modernization services.

AWS DMS, DMS Schema Conversion, AWS Application Migration Service, AWS Transform, Amazon API Gateway

Serverless and Cloud-Native Engineering

AWS Lambda development for event-driven work that spikes, with Step Functions and EventBridge carrying the flow. Long-running services go to containers on EKS instead. We plan for retries, duplicate events and cold starts up front, because that's where serverless projects usually break.

AWS Lambda (Python 3.13, Node.js 22), AWS Step Functions, Amazon EventBridge, Amazon SQS, Amazon EKS

Data, Streaming and Analytics on AWS

Our data engineering and analytics teams build pipelines that land, clean and serve data where the business can query it. Kinesis or MSK handle streams, EMR and Glue run heavy transforms, and Redshift Serverless serves analytics. You can replay any pipeline.

Amazon Kinesis Data Streams, Amazon MSK, Amazon EMR Serverless, AWS Glue, Amazon Redshift Serverless

DevOps, Quality Engineering and Ongoing Support

Our DevOps and quality engineering team builds pipelines in GitHub Actions or CodePipeline and writes infrastructure in Terraform. Tests run automatically at the API and UI layers. After launch we run the estate: patching, cost reviews and alerts routed to a named owner.

GitHub Actions, AWS CodePipeline, Terraform, Playwright, Amazon CloudWatch

Generative AI with Amazon Bedrock

AWS AI software development inside the applications you already run. We build retrieval with Bedrock Knowledge Bases, add Guardrails for PII and policy, and score answers against a test set before release. Production agents run on Bedrock AgentCore through our agentic AI integration work.

Amazon Bedrock, Bedrock Knowledge Bases, Bedrock Guardrails, Amazon OpenSearch Serverless, Bedrock AgentCore
PROOF

AWS Migration and Modernization Work We've Delivered

Three engagements with numbers attached. Every card leads with the outcome, not the technology.

100%

removal of expensive Oracle licensing and on-premise hardware costs

Healthcare & EHR Systems

Modernizing a Leading EHR Platform From Legacy to AWS Cloud

Moved a 50TB on-premise Oracle estate to Amazon Aurora and RDS using AWS SCT and DMS, with HIPAA-compliant encryption, audit logging and zero downtime at cutover.

Read the case study →

50%

reduction in query time, from minutes to milliseconds

‍

Technology

Optimizing Cloud Data Engineering for a Global Enterprise

Unified ERP and PoS data on AWS, with an Amazon S3 data lake, Redshift for analytics, EMR for semi-structured data and Athena for serverless queries.

Read the case study →

99%

reliability in historical data reprocessing and backfilling

Water & Environment Management

Modernizing From Legacy EC2 Instances to an Event-Driven AWS Airflow Pipeline

Replaced manual file handling on isolated EC2 instances with event-driven AWS Airflow pipelines, so Zoho IoT data flows in on its own and a data lake feeds desalination forecasts.

Read the case study →
Working on something similar in
AWS
Start your
AWS
project brief →

Not sure whether to lift and shift to AWS or re-architect first?

Get a 20-minute technical read from a senior engineer. No pitch deck, no sales team.

Request your 20-min review
ENGAGEMENT & COST

How You Engage Us, and What Drives the Cost

Three commercial shapes, and an honest account of what moves the number. You shouldn't have to fill in a form to learn how a partner charges.
WHAT ACTUALLY MOVES THE NUMBER
Seniority mix
An architect-heavy team costs more per month and usually less overall. The wrong mix shows up as rework, not as an invoice line.
Scope certainty
Fixed price needs fixed scope. Where the requirement is still moving, time and materials beats the contingency a fixed bid has to carry.
Compliance requirements
Regulated environments add evidence, review cycles and audit trails. That is real work, and it belongs in the estimate rather than in a surprise.
Integration surface
The number of systems you must talk to predicts effort better than feature count. Ten integrations is a different project from two.
Looking to hire
AWS
developers for your own team instead?
HOW WE DELIVER

Our Enterprise-Ready Delivery Framework

The same five steps on every engagement.
STEP 01
Contextual Readiness
Ready-to-deploy solutions for your environment. We map the existing estate, its dependencies and its constraints before proposing anything.
STEP 02
Seamless Vendor Onboarding
Rapid integration with existing vendor ecosystems. Access, environments, security review and ways of working, handled so engineering time isn't spent on procurement.
STEP 03
Platform-Agnostic Engineering
Works across any technology stack. We build on the stack that earns its place. We won't force a technology decision to suit our bench.
STEP 04
Flexible Engagement Model
Scalable team structures to your needs. The commercial shape can change as the work does, without renegotiating the relationship.
STEP 05
Hybrid Global Delivery
Onshore, nearshore and offshore delivery, with overlap hours that make standups worth attending.
WHEN WE'RE STAFFING A TEAM
Curated profiles · 24 to 48 hrs
Onboard & kickoff · 48 to 72 hrs
Our published staffing SLAs, from the point a requirement is agreed. You interview the engineers before committing.
HOW IT RUNS IN PRACTICE
Two-week sprints, demoable increments, a backlog your product owner controls
Peer review on every change and quality gates that block rather than warn
Canary and blue-green releases with rollback, so a bad deploy is a non-event
TRUST

Built on Trust. Proven in Delivery.

200+
Enterprises Transformed
150+
AI Projects Delivered
$500M+
Business Value Generated
500+
Domain Trained Professionals
“
We have been working with Entrans for the last two years and they have played a key role in building our solution. Their expertise and professionalism were evident throughout the development cycle, and we were very pleased with the final product.
Nikolay Prokopiev
Chief Executive Officer
“
Entrans has been a trusted outsourced product development partner for 2 years now, providing a pool of good quality software engineers to tap into. Their team has a strong customer first orientation, is open to feedback and is a pleasure to work with.
Subramanian Visvanathan
Chief Executive Officer
RECOGNIZED, CERTIFIED & PARTNERED
AWS
Partner Network
Microsoft Azure
Partner
NASSCOM
Member
Databricks
Partner
Denodo
Partner
Google Cloud
Partner
Confluent
Technology Partner
ISO 27001:2022
Certified
MongoDB
Cloud Partner
TiE
Member
SICCI
Member
SOC 2 Type II
Certified
FAQS

AWS Development FAQs

Still have a question?
Ask a senior engineer directly. We reply within one business day.
Ask us directly →

Should we build on AWS Lambda or on containers?

Use AWS Lambda for event-driven, bursty work and containers on ECS or EKS for long-running, steady services. Lambda bills per request and scales to zero, but it caps a single invocation at 15 minutes and adds cold-start latency. Containers cost more when idle and less under steady load. They also suit apps with heavy dependencies or tight latency targets. Most enterprise estates end up using both, split by workload.

How long does it take to migrate an application to AWS?

Moving one simple app to AWS usually takes weeks, while rebuilding a monolith often takes several months. Three things drive the schedule: data volume, the number of integrations, and how much business logic sits in stored procedures. A multi-terabyte Oracle estate full of PL/SQL is a different project from a stateless web app. Phased cutovers, with AWS DMS replicating data in the background, keep the business running during the move.

How do you keep the AWS bill predictable after launch?

A predictable AWS bill comes from tagging, budgets and architecture choices made before launch, not from a cleanup project later. Tag every resource for cost allocation, set AWS Budgets alerts for drift, and cover steady compute with Savings Plans or Graviton instances. Data transfer and NAT Gateway charges cause many bill surprises, so network paths need designing with them in mind. A monthly Cost Explorer review then catches idle resources before they compound.

Can you build HIPAA- and SOC 2-compliant applications on AWS?

Yes, AWS supports HIPAA and SOC 2 workloads, but your app's compliance is still your job under the shared responsibility model. AWS offers HIPAA-eligible services under a Business Associate Addendum and publishes its own SOC 2 reports. Your side is setup and proof: AWS KMS encryption, least-privilege IAM, CloudTrail audit logs and GuardDuty alerts. Entrans holds ISO 27001:2022 and SOC 2 Type II certifications. We have also moved EHR systems holding patient data to AWS under HIPAA controls.

Will building on AWS lock us in?

Some lock-in is the price of managed services, so the goal is to choose it on purpose rather than by accident. Containers, PostgreSQL on Aurora, Terraform and OpenTelemetry keep most of an application portable. DynamoDB, Step Functions and Lambda-native designs move faster but cost more to leave. A good AWS development services company should show you that trade-off for each component before it's built, not after.

NEXT STEP

Start your AWS project brief

Tell us the shape of the problem. A senior engineer reads it and replies. You won't get a templated capability deck.

Reply within one business day
Every engineer signs an NDA before day one
You own the code from the first commit
You interview the engineers before committing