1# nicholas_sdk.rb
2require 'nicholas'
3
4developer = Nicholas::Developer.new
5
6# Query skills by category
7developer.skills(:backend)
8# => ["Ruby", "Rails", "Sidekiq", "REST API", ...]
9
10developer.skills(:frontend)
11# => ["Vue", "Nuxt", "TypeScript", ...]
12
13developer.contact(project: "web")
14# => { email: "nicholastimbo2022@gmail.com" }
Experience
Software Engineer with 5+ years of experience across diverse industries including fintechs, e-commerce, church tech, and govtechs. Core technologies include Ruby, Rails, Docker, PostgreSQL, Sidekiq, Vue.js, and TypeScript.
Gocase
Software Engineer | Full Stack
E-commerce company that allows customers to express themselves through customized phone cases, thermal bottles, and more.
- Integrated credit analysis service into the Rails application, automating risk scoring and payment decisions; reduced manual analysis by 60h/month (R$ 2,280) and Serasa checks by 40/month (R$ 737)
- Reduced by ~20% the code review time by implementing a PR/MR reviewer AI agent using CI/CD
- Decreased order collection time by 80%, from 10 to 2 minutes per order, by developing a bulk collection system that optimized distribution center processes using Ruby on Rails and PostgreSQL
- Lowered development environment setup time by over 99%, from 3 days to 20 minutes, by Dockerizing two legacy monolithic systems using Docker, Makefiles, and ShellScript
- Lessened sellers' operational workload by 15 minutes per order by engineering an automated order segmentation flow within the B2B Ruby on Rails monolith and invoicing systems
- Prevented over 99.9% of duplicate order creations by implementing a robust SHA256 hash-based reference system in Ruby on Rails, saving an estimated $1,850+ annually
inChurch/Atos6
Software Engineer | Back-end
Integrated management platform used by over 4,000 churches, providing solutions to support congregations' daily operations.
- Achieved a 70% drop in unauthorized alterations and slashed manual adjustment efforts by 30% by implementing lambda algorithms in Ruby on Rails while redesigning database schema and permissions architecture
- Reduced application response time by 76% (from +60ms to ~14ms) by identifying and optimizing N+1 queries with bullet gem, overhauling the MVC structure, and integrating CDNs and micro-frontends
- Boosted support and development team delivery performance by 20% through active involvement in restructuring the development pipeline, incorporating Kanban and software engineering principles
- Reduced more than 40% of customer complaints by resolving system bugs, achieving a 100% validation rate for fixes
FitBank
Software Developer | Full Stack
The only Brazilian 100% cloud-native platform integrated with the Brazilian Payment System (SPB).
- Reduced system complexity and maintenance difficulties by 40% by simplifying the development process alongside the Software Architects team through the utilization of SOLID and Clean Architecture principles
- Enabled processes to be performed more quickly through the recreation of the internal administrative system, resulting in a performance improvement of approximately 30% compared to the old system
Intersol
Software Developer | Back-end
Company specialized in web solutions for public administration.
- Increased a 100% in flow consistency by implementing key features for the accounting module of the system, such as a review control system that mitigated possible bypasses
- Streamlined the bidding process with a simplified creation flow, resulting in a 40% increase in speed for clients in multiple municipalities
Education
I'm pursuing a Bachelor's degree in Computer Science at Centro Universitário Farias Brito, where I'm developing solid knowledge in Object-Oriented Programming, Data Structures, Algorithms, Cloud Computing, and Human-Computer Interaction.
Computer Science
Centro Universitário Farias Brito
Activities: Academic Center (AC) member, Projects Advisor (2022-2023)
Certifications & Training
- UI Design for Beginners (Origamid)Apr 2023
- Ruby Developer Training (DIO)Feb 2023
- Potential .NET Developer (DIO)Sep 2022
- React Developer Training (DIO)Sep 2022
- Cyber Security Experience II (XP Education)Jul 2022
- .NET Developer Training (DIO)Jul 2022
- Git and Azure DevOps Fundamentals (balta.io)Jul 2022
- Introduction to Computer Science - Harvard's Course (Fundação Estudar)Jul 2022
- EF SET English Certificate (B2 Upper Intermediate) (EF SET)Apr 2022
Volunteering
Monitor
Fundação Estudar · Feb 2022 - Jan 2023
DIO Campus Expert Ambassador #6
DIO · Feb 2023 - Apr 2023
DIO Campus Expert Ambassador #4
DIO · Jul 2022 - Sep 2022
Languages
- PortugueseNative
- EnglishAdvanced (C1)
- SpanishBasic
Skills
Top Skills
Projects
Nebula Jobs
Dec 2025 - PausedPlatform for searching tech jobs and managing applications with intelligent tracking. Features a Kanban board with drag & drop, AI-powered tailored CV generation (GPT-4), automatic job scraping, and internationalization support (PT-BR/EN-US).
Home Lab
2025 - PresentPersonal infrastructure project built from an old laptop that was gathering dust. Initially used as a learning environment for Kubernetes, IaC, networking, and automation. Now runs Proxmox with a Coolify VM and GPU PCI passthrough for running LLM models like Whisper and Ollama in personal conversation projects.
GymGenius
May 2023 - PausedGymGenius is a project that aims to solve a personal problem but can be applied to anyone with similar needs. The goal is to allow users to manage and organize their workout routine in a personalized way, avoiding paid solutions that are often superficial.
Portfolio
May 2022 - PresentPersonal portfolio project created to showcase my knowledge and present some of my characteristics and interests, as well as professional information and skills.
About Me
Development & optimization ⚡
I'm a Software Engineer with 5+ years of experience across diverse industries including fintechs, e-commerce, church tech, and govtechs. My core technologies include Ruby, Rails, Docker, PostgreSQL, and Sidekiq. Colleagues describe me as an innovative and pragmatic thinker who tests ideas from the user's perspective, and as a reliable problem-solver who collaborates in fast-paced cross-functional teams.
At Intersol, I started my career developing web solutions for public administration. I implemented key features for the accounting module, achieving 100% flow consistency, and streamlined the bidding process resulting in a 40% speed increase for clients across multiple municipalities.
At FitBank, I participated in a leadership program working on system development and process optimization, focusing on applying SOLID and Clean Architecture principles. I reduced backend complexity by ~40% and improved internal admin system performance by ~30% using .NET, C#, and ReactJS.
At inChurch/Atos6, I worked as a Software Engineer focused on improving system performance and security. I reduced unauthorized changes by ~70% through implementing lambda algorithms, decreased application response time by ~40% (from 24.3s to 14.8s) by optimizing N+1 queries and implementing Redis caching strategies. I also increased team productivity by ~20% through development pipeline restructuring.
Currently, I'm a Software Engineer at Gocase, where I implement solutions to optimize e-commerce operational processes. Key achievements include 80% reduction in order picking time (from 10 to 2 minutes) by developing a wave-based picking flow with route optimization, ~20% NPS increase through customer service system redesign with Vue.js and AI tools, and ~99% prevention of duplicate order creation by implementing a SHA-256-based reference system.