STRATEGY
Technical direction and architecture
Architecture, priorities, and risks organized before investing in code.
Diagnostic:Decisions and risk
Software engineering and technical partnershipSYSTEM_PARTNER
Will Engineer
I organize technology so the business can move forward.
I am Willian Marques. I work as a technical partner to companies and founders building products, evolving systems, and taking new ideas into production.
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SECURE SHELL
My journeyCAREER_SUMMARY
A journey built close to real problems.
I have worked across local businesses, e-commerce, SaaS, technical leadership, and AI products. Each experience brought engineering, operations, and outcomes closer together.
Read the complete journey- 01
2020
First freelance projects
- 02
2023 to 2025
Frontmidie
- 03
Today
Will Engineer
02 / Available services
Services
/ From the first decision to ongoing production evolution.
ACTIVE
Code review and evolution
Diagnosis and refactoring for systems that are safer and easier to maintain.
Diagnostic:Sustainable code
STABLE
Infrastructure and operations
Deployment, observability, data, and security for confident operations.
Diagnostic:Safe production
PRODUCTION
Automation and artificial intelligence
Integrations and agents that reduce repetitive work with control.
Diagnostic:Integrated flows
SCALABLE
Business platforms
CRM, support, and ERP adapted to the company’s real operation.
Diagnostic:Connected operations
ONGOING
Ongoing technical advisory
Technical support for decisions and product evolution.
Diagnostic:Direction and evolution
03 / Featured project
Featured projects
/ [0x4A]Status / Active devSystem active
OrbitFlow
An organized foundation for SaaS products that need to grow without rebuilding everything later.
Will Chat
Will Film
Data Journey
04 / Technologies
Stack and tools
Backend, web, data, platform, games, and agents are part of the same repertoire. This is the summary map; Material explains each area and when it makes sense.
Backend and APIs
Node.js, NestJS, Python, FastAPI, Ruby on Rails, Java, Spring, .NET, PHP, Laravel, REST, GraphQL, and gRPC
Frontend and web products
Next.js, React, TypeScript, Tailwind, Redux, React Query, Zod, accessibility, SSR, ISR, and SPA
Data and BI
PostgreSQL, MySQL, SQL Server, Oracle, MongoDB, Redis, SQLite, Elasticsearch, SQL, and Power BI
Cloud and platform
Linux, Docker, Kubernetes, NGINX, cloud, Terraform, Ansible, CI/CD, security, and observability
Games and interactive experiences
Unity, Unreal, Godot, Phaser, Three.js, Discord Activities, Blender, spritesheets, C#, C++, and Lua
AI and internal automation
OpenAI, Anthropic, RAG, n8n, and harnessed agents with tools, evaluations, logs, and human approval
MaterialKNOWLEDGE_BASE
Decisions, methods, and lessons from real projects.
Case studies, methods, and decisions explained through real projects.
Case studies
My journey across products, companies, and software engineering
From early projects for local businesses to platforms, technical leadership, and independent partnerships through Will Engineer.
Methodologies
How I organize software engineering with artificial intelligence
SDD, Loop Engineering, Harness Engineering, context, evaluations, and human review as parts of one working system.
Practical guides
My technical repertoire and how I choose each product stack
A complete map of backend, web, data, architecture, platform, games, integrations, and agents, always connected to the problem that needs to be solved.
Let us talkOPEN_CHANNEL
Let’s organize the next step for your product.
Share the product stage and the outcome you need. The first conversation helps us understand whether I can help.