Staff Engineer & Consultant Disponível · Remote

Your product scales.
Your team ships.

14+ Years of experience
9+ Companies served
4 Teams led

14+ years building software that scales. I work as an on-demand Staff Engineer: architecture, technical decisions, and product delivery.

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TypeScript · Node.js · React/Vue · Cloud · AI/LLM
What I offer

Consulting Services

Each company has a different technical problem. I solve yours.

I join your team as Staff Engineer: define architecture, make complex technical decisions, mentor engineers, and raise the technical bar.

Squads Mentoring Code Review
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I migrate legacy systems, define modern stacks, and design APIs that handle real growth. No downtime, no drama.

Microservices APIs REST Cloud
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From idea to working product in weeks. Code, deploy, and CI/CD configured from the first commit.

Full Stack Vue / React Node / PHP
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I integrate LLMs, build AI agents, and automate workflows. Governance and security from day one.

LLMs Automation Quality Gates
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I work as an embedded Staff Engineer for defined cycles, integrating into the development process without bureaucracy.

What's included

  • Product architecture review and definition
  • Technical decisions documented with reasoning
  • Mentoring for senior and mid-level engineers
  • Engineering standards: GitFlow, CI/CD, testing
  • Code reviews and pair programming
Ideal for: CTOs and founders who need technical depth without hiring a full-time Staff Engineer.
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Diagnose and redesign systems that accumulated technical debt or need to scale.

What's included

  • Current architecture audit
  • Stack definition and service boundaries
  • Microservices and API design
  • Incremental migration roadmap with zero downtime
  • Architecture documentation for the team
Ideal for: Growing products with technical bottlenecks or teams inheriting legacy systems.
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From concept to working product in weeks, with architecture and CI/CD from the first commit.

What's included

  • Scope and tech stack definition
  • Full-stack development
  • Deployment and CI/CD configured from day one
  • Testing, coverage, and code review
Ideal for: Startups and companies that need to launch a new digital initiative with speed.
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AI integration in the development and product cycle, focused on measurable outcomes.

What's included

  • LLM integration (OpenAI, Anthropic, open source)
  • AI agents and workflow automation
  • AI-powered quality gates in CI/CD pipelines
  • Governance and data security
Ideal for: Teams that want to adopt AI with safety and real product impact.
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Who I am
Marc Reinan Gomes

Staff Engineer
who ships results.

14 years building software that scales. Started as a full-stack developer, evolved to tech lead, and now work as Staff Engineer. I have walked this path in startups, fintechs, and corporate operations.

I work with CTOs and founders who need solid technical decisions, architecture that handles growth, and teams that ship without relying on heroics.

MBA in Software Engineering with AI
Full Cycle — In progress
Post-Graduation in Technical Leadership
Full Cycle — 2024–2025
Scrum Foundations Professional Certificate — Certiprof  |  Kanban Foundation KIKF™ — Certiprof
Methodology

How I work

Direct and transparent process. Each step produces measurable technical impact.

Let's talk
01

Discovery

I dig into context: product, team, stack, and technical pain points. I map bottlenecks and improvement opportunities through a Staff Engineer lens.

02

Technical Proposal

Clear action plan with defined scope, justified decisions, and a realistic timeline.

03

Execution

Code, architecture, code reviews, and mentoring alongside the team. Technical standards that raise the bar for the entire organization.

04

Team Independence

Independent team. Architecture documented, standards established, and training to sustain what was built.

Interactive Assessment

Evaluate Your Team's Engineering & AI Maturity

4 quick questions. Diagnostic score, bottlenecks identified, and actionable recommendations.

Step 1 of 4 25%
Pillar 1: Speed & Continuous Delivery

What is the deployment frequency and confidence of your product today?

Pillar 2: Architecture & Technical Debt

How is the codebase health and ease of adding new capabilities?

Pillar 3: AI Adoption & Agents

How does the team leverage AI and development automation?

Pillar 4: Technical Leadership & Senior Retention

How does technical leadership and senior engineer mentorship operate?

Let's talk

Have a technical challenge
that needs depth?

Tell me the context: team, product, main pain point. I reply within 24h with a call proposal.

Get in touch

Direct conversation. Choose the most convenient channel.

WhatsApp · reply within 4h
+55 (77) 99110-0227
E-mail
contato@marcreinan.com
LinkedIn
linkedin.com/in/marcreinan

Respondo em até 24h com uma proposta de conversa sem compromisso.

Start a conversation now
Staff Engineer Perspective View all articles

Articles & Insights

Reflections on engineering, architecture, and the impact of technical decisions on business.

Nov 8, 2026 · 2 min read

How Much Does a Staff Engineer Consultancy Cost: Pricing Models Explained

Day rate, monthly retainer, or fixed project? Each model trades flexibility against commitment. Real market numbers.

Consultoria Preços Staff Engineering
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Nov 1, 2026 · 2 min read

Assessing the Engineering Team in Due Diligence: Beyond the Code

Code gets rewritten. Teams don't. People and process assessment predicts post-acquisition success better than any repo audit.

Due Diligence Times M&A
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Oct 25, 2026 · 3 min read

Technical Red Flags in Pitch Decks: What Every Investor Should Check

The deck shows traction. It hides the system held together with tape. Seven technical signals that precede down rounds.

Investimento Due Diligence Startups
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