Brandon Achu

Backend / Platform Engineer

I build event-driven backend systems, workflow automation, and cloud infrastructure that teams can operate reliably in production.

Workflow automation
Platform APIs
Production reliability
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About Me

I build reliable backend and platform systems: event-driven workflows, service integrations, cloud infrastructure, and production tooling that teams can operate with confidence.

What I focus on

  • Event-driven systems and workflow automation
  • Service integration and platform APIs
  • Cloud infrastructure and IaC
  • Production reliability and observability

Experience

Software Development Engineer

2024 – Present

Zillow

  • Backend and platform engineering on distributed systems.
  • Event-driven integrations and workflow automation.
  • Production reliability and observability.

Software Engineer

Prior role

Expel

  • Core contributor to the Workbench API and customer integration surface.
  • Built automation services and public Terraform modules for AWS onboarding.
  • Worked across Node.js, Go, Kubernetes, and cloud infrastructure.

Capabilities

Distributed systems

Workflow orchestration, async messaging, state modeling, and idempotent service boundaries.

Platform engineering

Integration layers, developer tooling, deployment workflows, and cross-team technical design.

Cloud and IaC

AWS, Kubernetes, Terraform, and automation that scales onboarding and operations.

Production operations

Incident debugging, observability, safe rollouts, and hardening under real traffic.

Technical focus

Languages

TypeScriptGoPythonJavaScript

Backend & platform

REST & gRPC APIsEvent streamingWorkflow orchestrationPostgreSQL

Cloud & infrastructure

AWSKubernetesTerraformCI/CD

Operations

ObservabilityIncident responseSLO-minded debugging

Featured Case Studies

Production backend and platform work, plus selected public projects with verifiable evidence.

Platform

Event-Driven Workflow Automation

Async correlation

Built and extended workflow automation that reacts to domain events, coordinates work across services, and keeps long-running operations auditable.

GoKafkaPostgreSQL
Read case study →
Platform

Production Workflow Reliability

Safe replay

Improved how stateful workflow systems fail, recover, and stay observable when real-world timing does not match the happy path.

GoStep FunctionsPostgreSQL
Read case study →
Backend

Expel Workbench API

Production API surface

Helped grow a production REST API that served both internal platform needs and external customer integrations.

Node.jsExpressPostgreSQL
Read case study →
DevOps

Terraform AWS CloudTrail Module

Open-source module

Co-built an open-source Terraform module that made customer AWS onboarding repeatable for a managed security platform.

TerraformAWS CloudTrailAWS CloudFormation
Read case study →

Earlier work

Personal projects and additional professional work kept for context, with less prominence than the featured case studies.

Backend

Cloud Resource Automation Worker

Event-driven automation

Built an event-driven worker that provisioned and deprovisioned cloud resources when customer SKU assignments changed.

GoKubernetesPub/Sub
Read case study →
Web

Prometheus AI Platform

Multi-provider integration

Personal project that combined conversational AI, image generation, code generation, and music generation behind one interface.

Next.jsTypeScriptOpenAI
Read case study →
Web

Music Library Application

Auth and media handling

Full-stack music library with auth, uploads, likes, and playback.

Next.jsTypeScriptSupabase
Read case study →
Mobile

Mindfulness Mobile App

Mobile learning project

Cross-platform React Native app for mood tracking and mindfulness content.

React NativeReduxExpo
Read case study →

Get In Touch

Interested in backend/platform work, collaboration, or future opportunities? Email is the fastest way to reach me.

Location

United States