IBM MQ → RabbitMQ
Phased migration with legacy code refactoring
Legacy messaging replaced in phases while the applications calling it were refactored. No big-bang cutover.
Microservices
Design, development and refactoring built on loose coupling and the 12-Factor approach, with Golang starter kits and a tooled path from ECS to Lambda.
The short answer
Microservices split an application into small services with clear boundaries that deploy independently. We design, build and refactor them using loose coupling and the 12-Factor approach, and migrate existing services from Amazon ECS to AWS Lambda in stages, with Golang starter kits for new work.
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01Design
We specialize in e-commerce services: customers, carts, orders, returns, payments and accounting. Golang starter kits let you run Go code in Docker containers or as Lambda functions from day one.
02Lambda
Plan around Lambda limits and your reasons for leaving ECS.
Our tooling parses code and generates Lambda handlers, templates and API Gateway definitions.
Review for dependency injection, GOQU-based SQL and removal of tight coupling.
Add tracing and move configuration to AWS Secrets Manager.
03Limits
Functions time out after 15 minutes, cold starts add latency after idle time and steady high-volume traffic can cost more than containers. Services that hold state in memory or keep long-lived connections need redesign first. A good plan decides which services move and which stay on ECS.
How every engagement runs
Every Ace8 engagement follows the same three phases and the same eight principles, whatever the stack you start from.
Scope, cost and AI readiness, before any migration starts.
AI-assisted, engineer-verified, one capability at a time.
AceMQ engineers support the new stack from day one.
04Approach
Put API Gateway in front of existing services, move one microservice to Lambda, verify it and route traffic. The rest stay on ECS until their turn. Tracing added during migration shows whether each moved service performs as well as before.
05Modernization
Breaking up a monolith is a modernization decision, not a default. Some systems are better upgraded in place. We assess the application first and extract services only where boundaries are clear. See application modernization services and the method.
06Runtimes
Lambda supports Go, Java, Node.js, Python and other runtimes, and the runtime affects cold-start time and cost. Compiled Go binaries start fast. Java services, including Spring Boot applications, usually need tuning to start quickly.
For data, serverless services often pair Lambda with DynamoDB for key-value access or Aurora Serverless v2 for relational work. Lambda scales automatically, but downstream databases and APIs still have to cope with the concurrency it creates.
Proof
IBM MQ → RabbitMQ
Legacy messaging replaced in phases while the applications calling it were refactored. No big-bang cutover.
1,000+ apps
A deterministic Spring upgrade process, run through Broadcom’s commercial Spring support, in a single 24-hour window.
IBM MQ out
IBM MQ displaced with an open-source messaging stack, supported by AceMQ.
After go-live
Four stages: plan, automated conversion, redesign for best practice and secure SQL, then tracing and centralized configuration.
Templates for running Go services in Docker containers or as Lambda functions.
Lambda can run container images, but the code must still follow its event-driven handler model.
Yes, and that is usually safest, one service at a time behind API Gateway.
Some consolidate services split too finely. The ideas of loose coupling and clear boundaries still hold.
Start here
A fixed-price assessment gives you the inventory, the risk score and a phased plan. Scope and cost are fixed before the migration starts.
Get in touch
Tell us what you run today. An engineer, not a sales script, replies within one business day.