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Technical Architecture Advisory

Good architecture decisions early save months of refactoring later. I provide the seasoned perspective that comes from years of building and scaling production systems, helping your team make the right technical choices at the right time.

What I Provide

System Architecture Design

  • High-level system design for scalable applications

  • Microservices vs. monolith decision guidance

  • Database architecture and data modeling

  • API design (REST, GraphQL, gRPC) and integration patterns

  • Real-time features architecture (WebSockets, Server-Sent Events)

  • Event-driven architecture and message queues

Scalability Planning

  • Bottleneck identification and performance optimization strategies

  • Caching strategies (Redis, CDN, edge caching)

  • Database scaling (read replicas, sharding, connection pooling)

  • Horizontal scaling patterns and load balancing

  • Cost optimization while maintaining performance

Technology Stack Selection

  • Choosing the right tools for your specific needs (not just what's trendy)

  • Evaluating build vs. buy decisions

  • Vendor selection for cloud providers, databases, and third-party services

  • Migration planning (moving from legacy to modern stack)

Technical Debt Management

  • Assessing existing codebases for technical debt

  • Prioritizing refactoring efforts with business impact analysis

  • Incremental modernization strategies that don't halt feature development

  • Establishing engineering best practices to prevent future debt

Code Architecture & Quality

  • Code review and architectural feedback

  • Establishing coding standards and patterns

  • Design patterns and when to apply them

  • Testing strategies (unit, integration, e2e) and test architecture

  • Documentation standards and practices

My Approach

I position myself as a collaborative resource for your existing technical leadership—not a replacement. I work with your CTO, tech leads, and senior engineers to provide an outside perspective on complex architectural decisions.

Having built Bondlayer for 10 years, I've seen what works at scale and what doesn't. I've made the mistakes so you don't have to. I bring pattern recognition that only comes from years of production experience.

Ideal For

  • CTOs navigating complex architectural decisions or scaling challenges

  • Engineering teams facing technical pivots or major refactoring decisions

  • Startups designing their initial architecture and wanting to avoid common pitfalls

  • Companies evaluating technology choices for new initiatives

  • Organizations dealing with performance or scalability issues requiring expert analysis

Engagement Models

  • One-time architectural audit (1-2 weeks, detailed report with recommendations)

  • Monthly advisory retainer (4-8 hours/month for ongoing guidance)

  • Project-based consulting (hands-on for specific architectural initiatives)

  • Workshop facilitation (architecture design sessions with your team)

Deliverables

  • Architecture diagrams and documentation

  • Technology evaluation reports with recommendations

  • Refactoring roadmaps with prioritization

  • Code review feedback with actionable improvements

  • Best practices documentation for your team

  • Technical decision records (ADRs) for major architectural choices

What Makes This Valuable

Unlike pure consultants who specialize in advice, I'm a hands-on engineer who can also implement. I don't just tell you what to do—I can show you, build prototypes, or pair program with your team to transfer knowledge effectively.

Technologies & Patterns

Architecture: Microservices, serverless, event-driven, monorepo
Patterns: SOLID, DDD, CQRS, repository pattern, factory pattern
Infrastructure: AWS, GCP, Kubernetes, Docker, serverless
Databases: PostgreSQL, MongoDB, Redis, ElasticSearch
APIs: REST, GraphQL, gRPC, WebSockets

Velocity Paradigm

Traditional engineering methods usually take several weeks or even months to reach MVP. Through my AI-augmented workflows and 15+ years of experience with high-end no-code building tools, I leverage acceleration methods that condense these usual timelines significantly without sacrificing architectural integrity or security.

Technical Architecture Advisory | Sérgio Oliveira