{ Senior Software Engineer }
Senior Full Stack Engineer with 6+ years of experience building and scaling web platforms, AI-driven products, fintech integrations, and data-intensive systems used by tens of thousands of active users.
About Me
Senior Full Stack Engineer with 6+ years of experience building and scaling web platforms, AI-driven products, fintech integrations, and data-intensive systems used by tens of thousands of active users.
Core stack: Node.js, TypeScript, React, Next.js, NestJS, Express, PostgreSQL, MongoDB, Redis, Docker, AWS (ECS, ECR, CodePipeline), CI/CD (GitHub Actions), REST APIs, with strong focus on performance, scalability, and production reliability.
Currently at Scoder as a Senior Full Stack Engineer, owning features end-to-end: backend services, APIs, frontend delivery, cloud deployments, code reviews, and production releases in Agile environments.
Proactive, execution-driven engineer with strong ownership, communication skills, fast learning ability, and adaptability to complex systems.
Experience
Tech Lead | Senior Software Engineer
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.
- Led and mentored a cross-functional team of 3-6 engineers, QA, and designers, improving delivery predictability and code quality by establishing technical standards, PR reviews, and sprint execution.
- Architected and delivered real-time voice bots using the OpenAI Realtime API, enabling low-latency, bidirectional voice conversations with AI models.
- Increased AI service availability to 99% by architecting a provider-agnostic AI abstraction and automatic fallback mechanism across OpenAI, Claude, Gemini, and Grok.
- Achieved a 50% increase in the user base by delivering high-impact, business-critical features end-to-end.
- Drove engagement across tens of thousands of active users through continuous feature releases and rapid iteration, leveraging scalable backend services on AWS ECS.
- Reduced the production backlog by 75% and improved incident response time managing releases, versioning, and deployments using GitHub Actions, AWS (ECS, ECR), and Blue/Green deployments.
Software Engineer
Synergia
A Brazilian consulting firm with over 20 years of experience delivering socio-environmental projects that integrate innovative methodologies and technologies.
- Cut dashboard load time by 99.7% (from 3 minutes to 460ms) by architecting high-performance data schedulers and optimized aggregation pipelines.
- Integrated 15+ production REST APIs into a scalable frontend by designing resilient data-fetching layers.
- Boosted SEO visibility by 70% by improving page performance, indexing, and metadata.
Software Engineer
Algar Telecom
A leading Brazilian telecommunications company providing B2B and B2C connectivity, cloud, and digital solutions for enterprises across multiple industries.
- Automated financial data extraction processing 100K+ records per day by building resilient backend pipelines with Node.js, Docker, Linux, and SAP integrations.
- Developed SAP integration APIs processing $10M+ in monthly transactions with robust validation and idempotency strategies.
- Reduced manual effort by 80%, freeing 2 FTEs for strategic initiatives by replacing spreadsheet-driven workflows with containerized Node.js services.
- Built executive dashboards cutting reporting time from 2 days to 15 minutes.
Software Engineer
SIGA AUTO
An automotive solutions company based in Itajuba, MG, focused on vehicle management systems and digital services for the automotive sector.
- Delivered 12+ full-stack features supporting daily operations, improving system stability and usability with JavaScript, PHP, Laravel, MySQL, and Linux-based environments.
- Influenced key architectural decisions, reducing future rework and improving long-term maintainability by applying clean code practices and modular design with Laravel and MySQL.
- Reduced recurring production issues by ~30% through systematic code reviews, bug fixes, and legacy refactoring.
- Increased delivery velocity by ~25% by executing well-scoped Agile sprints using Scrum/Kanban workflows tracked with Trello.
Software Engineer
Tadini Tech
Personal freelance venture delivering end-to-end web and mobile solutions, AI-powered systems, and cloud infrastructure for clients.
- Reduced deployment time from hours to minutes by building CI/CD pipelines from scratch using GitHub Actions, Docker, and AWS, enabling predictable releases and zero-downtime rollbacks.
- Delivered AI-powered support chat systems implementing LangChain with Retrieval-Augmented Generation (RAG), integrating vector databases and LLM APIs, reducing manual support workload by ~35%.
- Accelerated web and mobile product launches by ~40% architecting end-to-end solutions with React, React Native, and NestJS, with automated cloud deployments on AWS.
Software Engineer
RURAL SMART
A Brazilian agtech company developing smart digital solutions to modernize rural businesses and drive agricultural sector growth.
- Led the front-end redesign of the company website, delivering a 100% responsive UI by translating Figma designs into production-ready interfaces with Angular, HTML, CSS, JavaScript, and Bootstrap.
- Built 20+ reusable UI components, reducing development time and improving UI consistency through component-based architecture in Angular.
- Improved SEO and page performance, driving a ~1,040% increase in the customer base after the website relaunch.
- Supported company growth from ~35 to ~400 active clients through optimized UX, performance-focused frontend, and reliable Node.js API integrations.
Software Engineer
ROBOK UNIFEI
Academic robotics team at Universidade Federal de Itajuba (Unifei), focused on competitive robotics and embedded software development.
- Member of the Software Subteam developing routines and code implementations for the robot in C++.
Key Results
Measurable impact across every role
AI Platform Scaling
Scaled and operated an AI platform ensuring high availability, scalability, and monetization reliability with multi-provider AI integrations across OpenAI, Claude, Gemini, and Grok.
Dashboard Performance
Reduced dashboard load time by 99.7% - from 3 minutes to 460ms - by architecting high-performance data schedulers and optimized aggregation pipelines.
SAP Financial Integration
Built SAP integration APIs processing $10M+ in monthly transactions with automated financial data extraction handling 100K+ records/day.
Automated Data Pipelines
Replaced spreadsheet-driven workflows with containerized services, reducing manual effort by 80% and freeing 2 FTEs for strategic initiatives.
Executive Reporting
Built executive dashboards cutting reporting cycles from 2 days to 15 minutes with data-driven interfaces and optimized backend aggregations.
SEO & Performance Boost
Boosted SEO visibility by 70% through improved page performance, indexing, metadata optimization, semantic HTML, and Lighthouse tuning.
LoopingApp
Complete development of a website from layout design to implementation of a digital catalog, used to showcase store products and for delivery purposes.
Skills
Education
Education
2025
Post-Graduation in Full Stack Development
FIAP University (Brazil)
2023
Bachelor's Degree in Computer Engineering
Universidade Federal de Itajuba - Unifei (Brazil)
Certifications
AWS Academy - Cloud Foundations
Languages
English
Advanced / Fluent / C1
Portuguese
Native
Spanish
Basic communication / Fluent reading
Get in Touch
I'm always open to new opportunities and interesting projects. Feel free to reach out!
$ echo $EMAIL
tadini.marcelo53@gmail.com
$ echo $LOCATION
Santa Rita do Sapucai, MG - Brazil
$ cat socials.txt
github.com/marcelotadini
linkedin.com/in/marcelotadini