You will get High‑Reliability API or AWS Lambda Development (Production‑Ready)
Rising Talent
Project details
I deliver high‑reliability backend engineering, not generic API work. My project stands out because I focus on production‑grade quality: idempotency, structured logs, integration tests, clear request/response contracts, and operational runbooks. Most freelancers ship prototypes — I ship systems built for real traffic, failures, retries, and observability.
My experience in Go, C#, and Python, combined with decades working on critical systems, makes this project ideal for clients who need stability, predictability, and long‑term maintainability rather than quick hacks.
My experience in Go, C#, and Python, combined with decades working on critical systems, makes this project ideal for clients who need stability, predictability, and long‑term maintainability rather than quick hacks.
Programming Languages
Python, C#, GoCoding Expertise
Performance Optimization, Security, DesignWhat's included
| Service Tiers |
Starter
$800
|
Standard
$1,600
|
Advanced
$3,200
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$180 - $500
Additional Revision
+$75
Source Code
+$100
Additional Endpoint
(+ 3 Days)
+$300
3rd‑party Integration
(+ 4 Days)
+$350
Telemetry Setup
(+ 2 Days)
+$250Frequently asked questions
About Flavio
Senior Software Engineer - Distributed Integration
Portimao, Portugal - 3:51 am local time
I have deep expertise in legacy modernization, transforming C/C++/C# systems into Go + AWS Lambda with zero downtime, safe incremental rollout, fallback mechanisms, and full production continuity. I modernize critical components such as REST APIs, binary parsers, and UDP/TCP gateways while keeping systems running 24/7.
I led the development of truck telematics and logistics platforms processing more than 30 million events per day, serving over 400 enterprise customers. I designed and implemented real‑time data pipelines, communication layers over TCP/IP, UDP, binary protocols, GPRS and satellite networks, and cloud solutions on AWS.
I’m experienced in software architecture, system design, performance optimization, API integrations, microservices, cloud migration, and production troubleshooting. I help companies build scalable backend systems, solve complex technical problems, improve reliability, and modernize critical platforms without service interruption.
Steps for completing your project
After purchasing the project, send requirements so Flavio can start the project.
Delivery time starts when Flavio receives requirements from you.
Flavio works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Access
Client provides architecture diagram, sample payloads, and access to staging or test data.
Reliability Audit & Runbooks
I analyze the environment, identify failure points, and create runbooks, rollback procedures, and validation tests.