Service & API design
Shape Go services and HTTP/gRPC APIs that match your product boundaries, with clear contracts and room to evolve.
Freelance Go consulting
Go backends built to perform in production
I help teams design, build, and improve Go services — APIs, workers, and platform-facing backends — when growth exposes gaps in architecture, observability, or delivery practices.
Problems I help solve
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Services that worked at small scale struggle with latency, errors, or operational complexity
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Unclear service boundaries or a monolith migration to Go needs a steady plan
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Missing tests, metrics, or deployment automation makes every release stressful
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You need an experienced backend engineer who stays involved after go-live
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Event-driven or cloud-native patterns are required but not yet in place
Services & approach
Implementation & refactoring
Hands-on development in Go — new features, performance work, and structural improvements without pausing delivery.
Reliability & observability
Production debugging with logs, traces, and dashboards; experience with tools such as Sentry, Grafana, New Relic, and Loki.
Platform alignment
Kubernetes, CI/CD pipelines, and AWS-backed deployments — integrating Go services into how your team already ships.
How working together goes
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1. Intro call
Walk through your system, constraints, and what success looks like in the next few months.
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2. Scope & plan
Agree on priorities — greenfield service, hardening existing code, or targeted performance work.
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3. Build & review
Iterative delivery with your team, including code review and documentation where it helps.
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4. Operate confidently
Leave you with services and practices that behave predictably under real traffic.
About Alexandru
I am alexandru.busuioc, a senior backend engineer with 14+ years of experience across the delivery lifecycle — from system design and implementation to deployment and production support.
I write about Go, PHP, and related web technologies on this site, and my production work includes APIs, event-driven systems, Kubernetes infrastructure, CI/CD with Jenkins and Spinnaker, and AWS environments.
I focus on measurable outcomes: faster, more reliable systems your team can own long term.
FAQ
Is this only for new Go projects?
No. I work on new services and on improving existing Go codebases that need architecture, performance, or operational maturity.
Do you also work in PHP?
Yes. Many products run mixed stacks; I offer a separate PHP consulting page if modernization there is the priority.
What size teams do you work with?
Typically small product teams and founders who need senior backend capacity without a full-time hire.
How do we get started?
Use the form below with a short description of your stack and goals. I reply with next steps for a call.
Get in touch
Share a few details about your product and what you need help with. I typically reply within one to two business days.