Microservices API Development Using FastAPI
FastAPI-based microservices designed to scale traffic and teams without adding operational chaos.
See How We Build for Complex BusinessesAs products mature, monolithic backends become a bottleneck. Small changes require full deployments, scaling is uneven, and failures are hard to isolate. Teams slow down because everything is tightly coupled. Microservices architecture solves this when done with discipline and clear boundaries.
Who This Is For
We usually work best with teams who know building software is more than just shipping code.
This is for teams who:
Product teams outgrowing a monolithic backend
Companies facing uneven traffic across features
Engineering teams needing faster and safer deployments
Organizations scaling multiple backend teams
This may not fit for:
Early-stage products with minimal backend complexity
Teams without DevOps or deployment maturity
Projects looking to rewrite systems without clear goals
Single-team systems with no scaling pressure
the real problem
Monolithic APIs slow teams and increase release risk
In monolithic systems, unrelated features depend on the same codebase and deployment cycle. A minor update can impact the entire backend. Scaling one high-traffic feature means scaling everything. Debugging failures is difficult, infrastructure costs rise, and teams cannot work independently without stepping on each other.
how this is usually solved
(and why it breaks)
common approaches
Large monolithic APIs handling all domains
Full-system deployments for small changes
Scaling the entire backend for one busy feature
Tight coupling between business functions
Where these approaches fall short
Slow and risky release cycles
Poor scalability under uneven load
Hard-to-isolate failures
Low team autonomy and productivity
Core Features & Capabilities
01
FastAPI-based services
Lightweight, async-first services with clear and validated API contracts.
02
Clear service boundaries
Domain-driven service design to reduce coupling and improve ownership.
03
Independent deployments
Each service can be deployed, scaled, and rolled back without affecting others.
04
Async and event-driven workflows
Queues and events for high-throughput and decoupled communication.
05
Resilience and fault isolation
Timeouts, retries, and graceful degradation built into services.
06
Cloud-ready architecture
Dockerized services with CI/CD pipelines and cloud-native scaling.
how we approach it
01
Define service boundaries based on real domains
02
Design clear API contracts and versioning
03
Build reliability and observability into each service
04
Roll out microservices incrementally from the monolith
How We Build at PySquad
We design microservices that solve real scaling problems without over-engineering. Our focus is clear service boundaries, reliable communication, and systems that teams can operate confidently in production.
outcomes you can expect
Faster and safer deployment cycles
Better scalability under uneven traffic
Improved system reliability and fault isolation
Teams able to work and release independently
Looking for similar solutions?
let's build yoursFrequently asked questions
No, we recommend it only when scale and complexity justify it.
Yes, we use phased and strangler patterns.
Yes, it is excellent for internal and external APIs.
Through API gateways, mTLS, and secure tokens.
Yes, with proper architecture and observability.
About PySquad
PySquad works with businesses that have outgrown simple tools. We design and build digital operations systems for marketplace, marina, logistics, aviation, ERP-driven, and regulated environments where clarity, control, and long-term stability matter.
Our focus is simple: make complex operations easier to manage, more reliable to run, and strong enough to scale.
Strategic Solutions in This Domain
Integrated platforms and engineering capabilities aligned with this business area.
have an idea? lets talk
Share your details with us, and our team will get in touch within 24 hours to discuss your project and guide you through the next steps