Wladimir F.

DevOps Engineer

São Paulo, Brazil7 yrs 6 mos experience

Highly StableAI Enabled

Key Highlights

Reduced AWS spending by over 70%
Doubled API throughput in recent projects
Top 3% Talent on Upwork

Stackforce AI infers this person is a SaaS Solutions Architect with expertise in cloud-native backend development.

Contact

Skills

Core Skills

Amazon Web Services (aws)Node.jsApi DevelopmentDatabase DesignJavascriptBack-end Operations

Other Skills

PostgreSQLSOLID Design PrinciplesAWS LambdaAPI GatewayTerraformCloudFormationTypeScriptJavaDomain-Driven DesignDesign PatternsContinuous IntegrationContinuous Delivery (CI/CD)MySQLSQLGroovy

About

AWS & Node.js Solutions Architect specializing in cloud-native platforms that improve performance, reduce infrastructure costs, and accelerate time-to-market. I help SaaS and B2B product teams modernize their backend and cloud infrastructure: migrating legacy systems, introducing automation (IaC, CI/CD), and designing resilient architectures. In recent projects, I’ve reduced AWS spending by over 70%, doubled API throughput, and moved mission-critical services into DevOps pipelines, turning complex architectures into tangible business outcomes. My focus areas include scalable backend development with Node.js/TypeScript (NestJS, Fastify, Express), serverless and container-based architectures on AWS (Lambda, API Gateway, SQS/SNS, EventBridge, EKS, RDS, DynamoDB, S3), and secure API design (REST, GraphQL, OAuth2/OIDC, Cognito, Auth0). I currently work as a freelance Solutions Architect via Upwork (Top 3% Talent), partnering with international teams to design, build, and scale production-grade platforms.

Experience

7 yrs 6 mos

Total Experience

2 yrs 6 mos

Average Tenure

Current Experience

Upwork

Solutions Architect

Jan 2021 – Present · 5 yrs 4 mos

Freelance Solutions Architect for 7+ AWS and Node.js projects across North America and Europe, delivering cloud-native platforms that cut infrastructure costs by up to 70% and improve API performance by 2x.
Design and implementation of scalable backend and cloud architectures: serverless (AWS Lambda, API Gateway, SQS/SNS, EventBridge), Infrastructure as Code (Terraform, CloudFormation), CI/CD (GitHub Actions), and secure APIs (REST, GraphQL, OAuth2/OIDC, Cognito, Auth0) using Node.js and TypeScript.

PostgreSQLSOLID Design PrinciplesAmazon Web Services (AWS)Node.js

Fornax tecnologia

Tech Lead

Feb 2018 – Aug 2021 · 3 yrs 6 mos · São Paulo, Brazil · On-site

Led backend modernization initiatives, evolving legacy Java services into modular, domain-driven architectures with clear boundaries and testable code.
Orchestrated cross-functional squads to align product roadmaps, delivery timelines, and technical quality targets.
Piloted large-scale refactors, introducing design patterns and engineering practices that raised code quality and resilience across new codebases.
Mentored engineers at all levels, accelerating their ramp-up time and embedding reliable onboarding, documentation, and knowledge-sharing processes.

Database DesignJavaScriptNode.jsAPI Development

Waves website

Software Engineer

Apr 2014 – Jul 2017 · 3 yrs 3 mos · Greater São Paulo Area

Partnered with stakeholders to shape application architecture decisions for Java-based web services supporting high-traffic consumer experiences.
Established CI/CD pipelines and coding standards that improved release cadence and production stability.
Led the migration of core applications to modern frameworks, optimizing performance and maintainability.
Administered MySQL environments, implementing monitoring, query tuning, and incident response procedures.

Database DesignContinuous IntegrationContinuous Delivery (CI/CD)API DevelopmentJavaScript

Hd relay

Back End Developer

Jul 2013 – Mar 2014 · 8 mos · United States

Delivered Groovy automation services that streamlined data ingestion and processing for US-based teams.
Built and maintained an external data integration layer connecting multiple third-party providers with strict SLAs.
Created real-time performance dashboards, enabling proactive optimizations and faster troubleshooting cycles.

Back-end OperationsSQL

Isolutions

Back End Developer

Jul 2012 – May 2013 · 10 mos · Greater São Paulo Area

Developed and maintained C# web applications, collaborating with product teams to translate requirements into reliable deliverables.
Designed SQL data models and stored procedures to support high-availability transactional workloads.
Responded to customer-reported issues with root-cause analysis, implementing long-term fixes and improving QA coverage.

Back-end OperationsSQL