Senior Software Engineer and Technical Leader with 5+ years delivering enterprise solutions that drive exceptional business results. Expert in TypeScript ecosystem (React, Next.js, Node.js), architecting and developing SaaS platforms that generate R$28M+ revenue and serve 14,000+ concurrent users with 99,9% uptime. Proven track record: reduced processing times by 75%, accelerated customer acquisition from 1 week to 5 minutes, and delivered production MVPs in 3 weeks. Combines deep full-stack expertise with aerospace-grade reliability principles from EMBRAER to build fault-tolerant, scalable systems that transform complex challenges into high-performance solutions.
Architected and delivered enterprise SaaS platform that generated R$28 million in launch month revenue, supporting 14,000+ concurrent users with zero downtime.
ReactTypeScriptNode.jsPostgreSQLRedisAWS
75% Reduction in Processing Time
Optimized PDF processing pipeline from 12 hours to 3 hours by developing intelligent selective decompression algorithm that processes only required files.
Reduced customer acquisition journey from 1 week to 5 minutes through digital platform automation, revolutionizing the high-voltage energy sector's sales process.
Next.jsNest.jsPostgreSQLRedisHubSpot APIAWS
100% Uptime During Critical Launch
Achieved unprecedented 100% uptime during high-traffic launch events, becoming the first system in client's history to handle critical launches without any downtime.
ReactNode.jsAWSRedisLoad BalancingAuto-scaling
MVP Delivered in 3 Weeks
Delivered production-ready MVPs in just 3 weeks through rapid prototyping and agile development, 40% faster than industry standards.
System DesignMulti-tenant ArchitectureWhitelabel SolutionsFeature FlagsRate Limiting
Tools & Methods
GitTrunk-based DevelopmentGitFlowScrumAgile
Recommendations
"I had the opportunity to work with Samuel, and I can confidently say he is an exceptionally committed, talented, and dedicated engineer. He stands out not only for his technical quality, but especially for his mindset: he's the kind of professional who focuses on solutions, takes ownership, and doesn't waste time on excuses.
In addition, he has a strong sense of priorities, communicates clearly, and delivers consistently, even in challenging situations and under tight deadlines. I highly recommend Samuel to any team that values excellence, autonomy, and a true ownership mentality."
"I had the opportunity to work closely with Samuel on the Ecom Energia project, and it was clear from day one how rare his profile is.
Samuel has a strong ability to connect deep technical knowledge with real business needs. In a project as complex as Ecom Energia — which required multiple tools, stacks, and the creation of a complete digital product portfolio for the energy market — this skill was absolutely essential.Beyond the technical side, Samuel was always someone the entire team could rely on. Especially during the most challenging moments and tight deadlines, he remained calm, proactive, and fully committed to finding solutions.
He's the kind of professional who brings clarity in complexity and confidence to the team. I would strongly recommend Samuel to any company looking for someone who truly understands both technology and business."
"Samuel is an extremely dedicated and results-focused person. With experience in project management and a technical background, he proves to be highly qualified in problem-solving with a focus on quality and efficiency."
Samuel Souza
Tech Manager | Senior Software Engineer · Scoder Tech Studio
"Samuel is a great professional, extremely dedicated and competent, with solid technical skills that are reflected in the quality of his deliveries and in the way he solves problems. He is always available to help, demonstrates great commitment to the team, and actively contributes to a collaborative environment. Furthermore, he is a very easy person to work with, which makes day-to-day work more productive."
Marcelo Tadini
Senior Software Engineer & Tech Lead · Scoder Tech Studio
"I had the opportunity to work with Samuel on some projects and this exchange was extremely enriching. He is an excellent communicator, able to convey technical ideas with clarity and always contributes to discussions constructively. Additionally, he has deep technical knowledge, which provides great confidence in day-to-day work, and demonstrates great responsibility with deadlines and quality of deliveries. I strongly recommend Samuel as a professional and work partner."
Diogo Castro
Software Developer | Front End Developer · Scoder Tech Studio
"I had the opportunity to work with Samuel on some projects, and our partnership was always very aligned and productive. As a UI/UX designer, I was able to work closely with him in building and evolving solutions, and the communication between design and development always flowed clearly and efficiently.
Samuel demonstrates great technical maturity, structured thinking, and commitment to quality. In addition to having a strong problem-solving capability, he has a collaborative attitude that facilitates decisions, scope adjustments, and deliveries on time.
What I highlight most is his ability to transform technical discussions into practical directions, maintaining focus on the result and the end user experience. He is a reliable, organized professional and extremely committed to what he delivers.
I recommend Samuel both for his technical knowledge and for his professional attitude and ease of teamwork."
Lucas Pereira
UI/UX | Product Designer · Scoder Tech Studio
Education
Software Engineering, Bachelor's degree
2020 - 2025
Instituto Nacional de Telecomunicações - INATEL
Bachelor's in Software Engineering Comprehensive engineering program focusing on software design, development, and management, covering algorithms, data structures, databases, distributed systems, artificial intelligence, and software quality assurance for building complex computational solutions.
Software EngineeringAlgorithmsData Structures
Full Stack and Full Cycle Developer
2024-01 - 2024-12
Full Cycle
Comprehensive program focused on full-stack development with AI integration, covering software architecture, DevOps, microservices, and generative AI implementation to build complex, production-ready applications.
Full-Time Certificate in English as a Global Language (Advanced)
2019-03 - 2019-10
Ascend Education Centre, Singapore
Advanced English certificate acquired through a full-time program focused on English language proficiency, grammar, and communication skills.
EnglishCommunication SkillsGrammarProficiency
Control and Automation Technician
2015 - 2017
Escola Técnica de Eletrônica Francisco Moreira da Costa (ETE FMC)
Technical Degree in Industrial Automation Technical program focused on industrial process automation, covering PLCs, pneumatics, hydraulics, electrical systems, instrumentation, industrial robotics, and control systems for manufacturing and industrial environments.
Enterprise-level SaaS platform generating R$28M in first-month revenue, supporting 14,000+ active users with 100% uptime during high-traffic launch events - the first system in client's history to achieve zero downtime during critical launches. Led cross-functional teams of 8 professionals across engineering, QA, and design, using Scrum methodology with full ownership of backlog mapping, sprint planning, and daily standups.
Architected and implemented full-stack applications using React/TypeScript/Vite frontend with Express backend, PostgreSQL, Redis caching, delivering MVP in 3 weeks and production release in 3 months
Integrated AI capabilities with OpenAI, Anthropic, and Google GenAI SDKs, building domain-specific intelligent agents and real-time visual workflows using ReactFlow
FastAPI
REST APIs
GraphQL
Microservices
BullMQ
Kafka
WebSockets
Route 53
DynamoDB
CloudWatch
Lambda
API Gateway
Linux
SSH
Infrastructure as Code
Auto-scaling
Load Balancing
TypeORM
Prisma
Database Design
Query Optimization
Data Modeling
E2E Testing
Code Review
ESLint
Prettier
Test Automation
Performance Testing
DocuSign
Payment Gateways
Third-party APIs
Webhooks
Real-time Processing
Caching Strategies
Fault Tolerance
Scalability
Design Patterns
Clean Architecture
Jira
VS Code
Sentry
Turborepo
i18n
Technical Documentation
View on LinkedIn
Software Architecture
Containerization
Sensors
Actuators
Established complete DevOps ecosystem, implementing Terraform IaC, GitHub Actions CI/CD, AWS cloud services, and trunk-based development, achieving zero-downtime deployments and 70% faster release cycles
Pioneering multi-tenant whitelabel SaaS platform for the high-voltage energy sector, reducing customer acquisition journey from 1 week to 5 minutes—a 99% time reduction that revolutionized ECOM Energia's sales process. Led team of 5 engineers delivering production-ready MVP in 3 months.
Architected multi-tenant whitelabel SaaS platform enabling instant partner deployment, allowing creation of custom-branded instances in minutes through management portal with configurable URLs, color palettes, and branding—achieving 85% infrastructure cost reduction
Designed and built enterprise-grade full-stack architecture from scratch using Next.js with Server Components/Actions, Nest.js microservices, PostgreSQL, Redis caching, and BullMQ job queues
Implemented sophisticated feature flag system with per-partner customization, enabling granular control of functionality across whitelabel instances while maintaining single codebase efficiency
High-throughput raffle platform processing 1M+ daily transactions with sub-second response times. Led critical frontend migration from Flutter to React in 3 weeks, delivering customizable whitelabel single-tenant architecture.
Developed and optimized features for high-throughput raffle platform processing 1M+ daily transactions, implementing backend services with Nest.js, PostgreSQL, and Redis caching to maintain sub-second response times under peak load
Led critical frontend migration from Flutter to React in 3 weeks, delivering customizable whitelabel single-tenant architecture that enabled rapid deployment of client-specific instances with unique branding and features
Identified and documented critical Flutter performance bottlenecks on specific device configurations, providing technical analysis that informed strategic migration decision to React, preventing potential loss of 30% user base
Telefônica Brazil (Vivo) - Invoice Processing System
Backend Software Developer
Enterprise-scale invoice processing and billing system for Telefônica Brazil (Vivo), serving 100+ million mobile subscribers. Handled millions of monthly transactions with critical PDF processing optimizations achieving 75% performance improvement.
Optimized critical PDF processing pipeline reducing execution time by 75% (from 12 to 3 hours) through intelligent selective decompression algorithm that processes only required ZIP files and extracts specific PDFs based on email manifests
Maintained and enhanced large-scale financial batch processing systems using Java Spring Batch and Oracle DB, handling millions of invoice records monthly for 100+ million mobile subscribers with zero data loss
Participated in developing robust file processing services implementing multi-threaded decompression strategies with intelligent filtering mechanisms, processing thousands of compressed billing documents daily
Rapid development and delivery of a fully responsive real estate platform MVP in just 2 weeks, demonstrating exceptional ability to prototype and deploy client solutions under extremely tight deadlines.
Delivered fully functional MVP from concept to deployment in just 2 weeks
Built responsive Next.js application with Chakra UI ensuring optimal user experience across all devices
Implemented property listing, search, and filtering features with real-time updates
Comprehensive WhatsApp automation platform serving restaurants and fitness businesses, streamlining customer interactions through automated order management and appointment booking systems.
Participated in developing an automated order management system for restaurants enabling customers to place orders via WhatsApp
Contributed to developing an appointment booking system for gyms with calendar integration and automated confirmations
Implemented PHP/MySQL backend with robust data management for business operations
PHPMySQLJavaScriptjQueryBootstrapWhatsApp Business APIREST APIHTML5CSS3AJAX
Professional Experience
2025-01—Present
Senior Software Engineer & Technical Manager
Scoder Tech Studio
A Brazilian Tech Studio that combines strategic IT consulting, agile development and user-centric design to deliver custom software solutions for businesses.
Lead dual technical and management responsibilities for high-impact SaaS products serving 14,000+ active users, managing cross-functional teams while architecting and implementing scalable solutions using modern tech stack including React, TypeScript, Node.js, and AI integrations.
Delivered an enterprise-level SaaS platform generating R$28M in first-month revenue, supporting 14,000+ active users with 100% uptime during high-traffic launch events - the first system in client's history to achieve zero downtime during critical launches.
Led cross-functional teams of 8 professionals across engineering, QA, and design, using Scrum methodology with full ownership of backlog mapping, sprint planning, and daily standups.
Architected and implemented full-stack applications using React/TypeScript/Vite frontend with Express/Fastify backends, PostgreSQL, Redis caching, delivering MVP in 3 weeks and production release in 3 months.
Integrated AI capabilities with OpenAI, Anthropic, and Google GenAI SDKs, building domain-specific intelligent agents and real-time visual workflows using ReactFlow.
Established complete DevOps ecosystem, implementing Terraform IaC, GitHub Actions CI/CD, AWS cloud services, and trunk-based development, achieving zero-downtime deployments and 70% faster release cycles.
Designed secure payment infrastructure integrating Stripe and Ticto gateways, implementing custom rate-limiting algorithms and DDoS protection that maintained 99.99% transaction success rate.
Served as primary technical liaison between C-level executives and engineering teams, translating business requirements into technical roadmaps and establishing trust relationships with key clients for long-term strategic alignment.
Led the technical architecture and development of a pioneering multi-tenant whitelabel SaaS platform for the high-voltage energy sector, managing a team of 5 engineers while reducing customer acquisition time by 99% and delivering a production-ready MVP in 3 months using Next.js, Nest.js, and AWS cloud infrastructure.
Pioneered first-to-market digital acquisition platform for high-voltage energy sector, reducing customer acquisition journey from 1 week to 5 minutes—a 99% time reduction that revolutionized ECOM Energia's sales process.
Architected multi-tenant whitelabel SaaS platform enabling instant partner deployment, allowing creation of custom-branded instances in minutes through management portal with configurable URLs, color palettes, and branding—achieving 85% infrastructure cost reduction.
Designed and built enterprise-grade full-stack architecture from scratch using Next.js with Server Components/Actions, Nest.js microservices, PostgreSQL, Redis caching, and BullMQ job queues, delivering production-ready MVP in 3 months.
2024-01—2024-07
Full-Stack Software Engineer
Scoder Tech Studio
Developed and optimized full-stack features for high-throughput applications processing 1M+ daily transactions, leading critical frontend migrations and delivering production-ready solutions across diverse tech stacks including React, Flutter, Nest.js, Python, and multiple database systems.
Developed and optimized features for high-throughput raffle platform processing 1M+ daily transactions, implementing backend services with Nest.js, PostgreSQL, and Redis caching to maintain sub-second response times under peak load.
Led critical frontend migration from Flutter to React in 3 weeks, delivering customizable whitelabel single-tenant architecture that enabled rapid deployment of client-specific instances with unique branding and features.
Built full-stack features across 3 production applications using diverse tech stacks including Nest.js/PostgreSQL, Python/MongoDB, and Flutter/React, demonstrating versatility in adapting to different architectural patterns and business requirements.
Identified and documented critical Flutter performance bottlenecks on specific device configurations, providing technical analysis that informed strategic migration decision to React, preventing potential loss of 30% user base.
2022-12—2023-12
Full-Stack Software Developer
Data Core Solutions
Brazilian technology company focused on Customer Experience that combines digital engagement, systems integration and custom solutions to deliver complete digital transformations for businesses.
Developed and maintained diverse full-stack applications serving enterprise clients and startups, from large-scale invoice processing systems to rapid MVP deliveries, working with Java Spring Boot, React/Next.js, Angular, and PHP across multiple client projects.
Maintained and optimized large-scale invoice processing system for Vivo (Telefônica Brazil) handling millions of monthly transactions, using Java Spring Boot and OracleDB, ensuring system reliability and performance for critical billing operations.
Developed message-based architecture components implementing asynchronous processing patterns with Java Spring Boot, enabling scalable transaction processing and system decoupling.
Built the initial version of a real estate platform in 2 weeks, delivering fully responsive Next.js application with Chakra UI, demonstrating ability to rapidly prototype and deploy client solutions under tight deadlines.
2022-03—2022-12
Back-End Software Developer
Data Core Solutions
Developed and optimized large-scale batch processing systems for financial and invoice operations using Java Spring Batch and Oracle DB, achieving 75% performance improvements in critical data processing pipelines while maintaining comprehensive documentation for enterprise on-premise deployments.
Optimized critical PDF processing pipeline reducing execution time by 75% (from 12 to 3 hours), developing intelligent selective decompression algorithm that processes only required ZIP files and extracts specific PDFs based on email manifests, dramatically improving daily batch processing efficiency.
Developed and maintained large-scale financial batch processing systems using Java Spring Batch and Oracle DB, handling millions of invoice records and file operations for enterprise billing operations with zero data loss.
Architected robust file processing services implementing multi-threaded decompression strategies with intelligent filtering mechanisms, processing thousands of compressed files daily while maintaining data integrity.
2020-01—2021-01
Engineering Intern
Inatel Competence Center
Brazilian technology center that combines hardware and software development, R&D expertise and telecommunications innovation to deliver customized solutions, product testing and specialized training for companies in the technology sector.
Developed automation solutions for Nokia mobile network deployments, creating VBA scripts that transformed site configuration data into commissioning files and automated report generation, significantly reducing manual processing time in telecommunications rollout operations.
Automated mobile network site commissioning process by developing VBA scripts that transformed cell tower data from Excel spreadsheets into XML configuration files, reducing manual processing time by 80% and eliminating human errors in site deployment.
Built end-to-end report generation system using Excel VBA macros that consolidated data across multiple worksheets and image folders, automatically producing carrier-ready documentation for site rollout approvals.
Streamlined Nokia network deployment workflow for telecommunications carriers, converting manual multi-hour processes into automated scripts that accelerated site commissioning timelines.
2018-01—2018-12
Control and Automation Intern
EMBRAER
Brazilian aerospace manufacturer that combines advanced engineering, technological innovation and manufacturing excellence to design, develop and deliver commercial, executive and military aircraft to customers worldwide.
Operated and maintained mission-critical data acquisition systems for flight test campaigns at EMBRAER, developing expertise in redundancy, fail-safe mechanisms, and fault tolerance principles that form the foundation for building robust, reliable software systems.
Operated mission-critical data acquisition systems for flight test campaigns, ensuring real-time telemetry collection with zero tolerance for failure, applying aerospace-grade redundancy and fail-safe principles that now inform software architecture decisions.
Maintained onboard instrumentation systems requiring 99.999% reliability, developing deep understanding of fault tolerance, graceful degradation, and rollback mechanisms essential for production software systems.
Applied aerospace safety standards to system operations, implementing rigorous pre-flight checks, validation protocols, and failure detection procedures that parallel modern CI/CD and testing practices in software development.
OpenAI
Anthropic AI
Google GenAI
ReactFlow
TailwindCSS
Stripe
BullMQ
Sentry
Vitest
Shadcn UI
Tanstack Query
React Hook Form
Zod
Zustand
Context API
Websockets
TurboRepo
Implemented sophisticated feature flag system with per-partner customization, enabling granular control of functionality across whitelabel instances while maintaining single codebase efficiency.
Integrated 8+ critical external APIs with redundancy mechanisms, including ANEEL energy tariffs, Risk3 data verification, Zapsign contract management, and HubSpot CRM, ensuring 99.9% availability for business-critical operations.
Established complete cloud infrastructure on AWS using ECS, CloudFront, S3, RDS with Terraform IaC, GitHub Actions CI/CD pipelines, achieving ultra-low operational costs through optimized multi-tenant architecture.
Led team of 5 engineers delivering complex integrations, providing technical mentorship through 1:1s, code reviews with GitHub Copilot assistance, and establishing development standards with branch protection policies and automated testing.
Drove technical strategy and requirements mapping with stakeholders, translating business needs into scalable technical solutions while maintaining ownership of infrastructure and deployment pipelines.
Implemented robust backend APIs for real estate financing platform using Nest.js and PostgreSQL, designing data models and business logic for complex financial calculations and multi-step application workflows.
Contributed to whitelabel architecture supporting multiple deployments, implementing tenant isolation patterns and configuration management allowing single codebase to serve diverse client requirements with independent infrastructure.
Collaborated with 15-member cross-functional team following Scrum methodology, participating in sprint planning, daily standups, and retrospectives while maintaining GitFlow versioning standards for parallel feature development.
Delivered production-ready features across entire stack, from Flutter mobile interfaces and React web applications to RESTful APIs and database optimizations, ensuring seamless integration between frontend and backend systems.
Developed a WhatsApp automation platform serving restaurants and fitness businesses, implementing order management and appointment booking systems using PHP/MySQL backend with Bootstrap/jQuery frontend, streamlining customer interactions and business operations.
Contributed features across diverse tech stacks including React/Next.js modern applications, enterprise Angular systems, and vanilla JavaScript solutions, adapting quickly to different codebases and architectural patterns.
Implemented responsive web interfaces using multiple frameworks including Next.js Pages Router, Chakra UI, React Hook Form, and Angular Material, ensuring consistent user experiences across desktop and mobile platforms.
Delivered full-stack solutions across 5+ production projects collaborating with 5-member team, from PHP applications to modern React/Next.js SPAs, demonstrating adaptability to various business domains and technical requirements.
Built resilient batch job orchestration using Spring Batch framework, implementing error handling, retry mechanisms, and transaction management for critical financial data processing workflows on on-premise infrastructure.
Implemented comprehensive logging and monitoring strategies for batch processes, creating detailed audit trails for file processing operations and enabling rapid issue diagnosis in production environments.
Maintained extensive technical documentation for all system changes, test procedures, and deployment processes, creating detailed runbooks for manual deployments to on-premise servers via SSH, ensuring knowledge transfer and operational continuity.
Contributed to the development of an automated invoice distribution system processing thousands of billing documents daily, integrating file processing with email services.
Contributed to enterprise-grade invoice processing infrastructure handling high-volume financial transactions, ensuring compliance with business rules and maintaining 99.9% accuracy in billing operations.
Collaborated with multidisciplinary engineering teams in high-stakes environment where system failures have catastrophic consequences, building foundation for defensive programming and robust error handling in software engineering.
Data Acquisition SystemsFlight Test InstrumentationReal-time SystemsTelemetrySafety-Critical SystemsRedundancy DesignFault ToleranceSystem ValidationAerospace StandardsControl SystemsAutomationRisk Management
