You will get a production-ready Go (Golang) microservice with REST API & PostgreSQL
Project details
You will get a production-ready Go (Golang) microservice with a clean REST API, PostgreSQL persistence, JWT auth, structured logging, OpenAPI docs, unit tests, and a Dockerized setup you can deploy on day one. I am a Staff Backend Engineer with 20+ years building distributed systems and high-traffic Go services for fintech and SaaS clients.
This is the right fit if you need a solid backend foundation built by someone who has shipped real production systems, you want clean idiomatic Go (not a hacked prototype), or your team needs a reference implementation following best practices.
What you receive:
• Idiomatic Go service with clean architecture (handlers, services, repositories)
• PostgreSQL schema, migrations, and connection pooling
• JWT auth, input validation, structured error handling
• Unit tests for critical paths
• Multi-stage Dockerfile and docker-compose for local dev
• OpenAPI/Swagger docs and a clear README
• Full source code on Git + 30-minute walkthrough call
I communicate clearly in English, Portuguese, and Spanish.
This is the right fit if you need a solid backend foundation built by someone who has shipped real production systems, you want clean idiomatic Go (not a hacked prototype), or your team needs a reference implementation following best practices.
What you receive:
• Idiomatic Go service with clean architecture (handlers, services, repositories)
• PostgreSQL schema, migrations, and connection pooling
• JWT auth, input validation, structured error handling
• Unit tests for critical paths
• Multi-stage Dockerfile and docker-compose for local dev
• OpenAPI/Swagger docs and a clear README
• Full source code on Git + 30-minute walkthrough call
I communicate clearly in English, Portuguese, and Spanish.
Programming Languages
GoCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 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
+$149 - $449
Additional Revision
+$149Frequently asked questions
About Alessander
Staff Backend Engineer - Go, Microservices, Distributed Systems
Florianopolis, Brazil - 6:33 am local time
I operate through a US-based LLC, making B2B engagement seamless for North American and European organizations.
What I architect:
- Event-Driven Microservices and Serverless (Golang, AWS Lambda, GCP)
- Internal Developer Platforms (IDP) that cut provisioning from days to minutes
- Observability stacks (Datadog, SOC2) that slash MTTR by 40%
- Cloud Cost Optimization - 30% API latency gains on high-volume ERP systems
- Legacy Modernization - monolith-to-microservices with zero downtime
Core stack: Golang, Java, Python, AWS, GCP, Terraform, Kubernetes, Kafka, PostgreSQL, Redis, Datadog
Google Professional Cloud Architect certification in progress. Postgraduate specializations in Software Architecture and Database Administration.
Open to Staff / Principal / Tech Lead engagements - remote, contract or full-time.
Steps for completing your project
After purchasing the project, send requirements so Alessander can start the project.
Delivery time starts when Alessander receives requirements from you.
Alessander works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & design
I review your requirements, propose the REST endpoints, data model, and tech choices (Go modules, PostgreSQL schema, auth, logging, config), and confirm the deliverable scope with you before writing any code.
Service implementation
I build the Go microservice end-to-end: REST handlers, PostgreSQL persistence layer, validation, auth (JWT or session), structured logging, configuration, error handling, and unit tests covering critical paths.