I'm Daiana Menezes

I build software that solves real business problems.

Senior Software Engineer & Software Architect

Websites, landing pages, backend systems, APIs and automations, backed by 7+ years of professional experience building software for companies such as Bradesco, Magazine Luiza and Bradesco Seguros.

Daiana Menezes, senior Java developer and software engineer

Experience delivered for

Services

Websites & Landing Pages

Professional, responsive websites and landing pages designed to present your business clearly and turn visitors into leads.

Business websites
Landing pages
Responsive design
WhatsApp integration
Contact forms
Lead capture
Basic SEO
Performance optimization
Deployment

Build my website →

Backend & APIs

Reliable backend solutions for businesses that need scalable, maintainable and well-engineered software.

Java
Spring Boot
REST APIs
Microservices
Database integrations
Third-party integrations
Legacy modernization
Docker
CI/CD

Discuss a backend project →

Automation & Integrations

Connect your tools, automate repetitive processes and reduce manual work.

n8n
API integrations
Webhooks
Payment integrations
Email automation
Data synchronization
Python scripts
Business process automation

Automate my workflow →

Portfolio

Featured Work

Real-world projects combining technology, design and business needs.

Desktop interface of the Dra. Isis Kovesdy landing page

Healthcare Landing Page · Live project

Dra. Isis Kovesdy

Nutrology & Sports Medicine

A responsive, conversion-focused landing page built to position a physician establishing her practice in a new city, with clear service presentation, WhatsApp contact and a mobile-first experience.

Responsive design
Mobile-first experience
Professional positioning
Clear service presentation
Contact/WhatsApp integration
Performance and usability

View live project →I want something like this

Enterprise Experience

7+ years building and evolving software in high-scale environments.

CI&T · Banco Bradesco

Senior Software Engineer

Apr 2026 to Present · Current

Microservices with Java 21/25 and Spring Boot for one of the largest banks in Latin America.
Integration between modern applications and mainframe systems and data.
Pipeline automation and deployments with ArgoCD, plus unit testing and code quality.

Java 21/25Spring BootMainframeArgoCDCI/CD

Luizalabs / Magazine Luiza

Software Engineer

Sep 2024 to Apr 2026 · 1 yr 8 mos

Order chargeback and refund flows for one of Brazil's largest e-commerces, at high transaction volume including Black Friday.
Asynchronous messaging with RabbitMQ: queues, exchanges and consumers for refund events.
Currency-conversion validations for international orders and a new store-credit refund flow.
Observability dashboards in Grafana and Datadog; Java upgrades (17 → 21 → 25); Apigee → Kong gateway migration.

JavaSpring BootRabbitMQKongGrafanaDatadogDockerPython

MJV · Bradesco Seguros

Software Engineer

Apr 2021 to Sep 2024 · 3 yrs 6 mos

REST and SOAP services behind digital insurance products used at scale by customers, partners and channels.
Monolith to microservices migration: Struts/JSF → Spring Boot, JDBC → Spring Data.
Secure data sharing under Open Insurance standards; authentication with JWT/OAuth2 and IDwall facial recognition.
IBM DataPower as API Gateway, JMS/IBM MQ messaging and CI/CD pipelines on Azure DevOps.

JavaSpring BootOpen InsuranceDataPowerAzure DevOpsJMSOAuth2

CosmosERP

Web Development

Jul 2020 to Apr 2021 · 10 mos

Finance, sales, inventory and invoicing modules of a corporate ERP platform.
Web interfaces with HTML, CSS and JavaScript; queries and data handling on SQL Server.

GeneXusSQL ServerJavaScriptHTML/CSS

What I can help you build

Types of technical work I take on for clients.

Backend Development

Java · Spring Boot · APIs · Microservices

Integrations

REST APIs · Webhooks · Payments · Third-party systems

Automation

n8n · Python · APIs · Business workflows

Trust

Why work with me?

Enterprise-level experience

I've worked on software for companies such as Bradesco, Magazine Luiza and Bradesco Seguros.

7+ years of experience

Professional experience building, maintaining and evolving software in complex, high-volume environments.

Technical + business perspective

I don't just write code. I focus on understanding the problem and delivering a practical, maintainable solution.

Clear communication

Remote collaboration, transparent communication and organized development throughout the project.

About me

Beyond being passionate about technology, I am a proud Brazilian, a pet mom to two adorable dogs, and someone who loves nature, a good glass of wine and exploring new places.

Professionally, I am a Senior Software Engineer with 7+ years of experience building backend systems, APIs and integrations for companies like Bradesco, Magazine Luiza and Bradesco Seguros.

Today I bring that same experience to businesses and professionals who need websites, landing pages, automations and custom digital solutions.

I work remotely, in both Portuguese and English, with clients around the world.

Daiana enjoying a glass of wine at sunset

Daiana horseback riding in the mountains

Contact

Have a project in mind?

Whether you need to build, improve or automate something, tell me what you're trying to accomplish.

Start a project

WhatsApp: +55 41 8809-5990