BACKEND ENGINEERING / APIS & CLOUD
Backend & Cloud Engineering
Secure systems that behave when the happy path ends.
Build and repair backend APIs, identity services, integrations and cloud delivery pipelines with explicit authorization, observability, fault recovery and deployment controls.
REQUEST FLOW / RELIABILITY PATH
01 / FLOW
Client request
Caller + context
02 / CHECK
Services
Policy + retries
03 / FLOW
Cloud runtime
Telemetry + rollback
Engineering boundaries · design → test → delivery
CAPABILITIES / TECHNICAL COVERAGE
The expertise your team needs, focused on the work that matters.
SaaS operators, engineering teams and companies with business-critical API or cloud workflows.
Authentication & authorization
Cloud architecture & delivery
Resilience & observability
CI/CD and supply-chain controls
Production incident diagnosis
OUR APPROACH
From first conversation to delivered results.
Map the system
Trace the request, data ownership, identity policies, external dependencies and failure modes.
Choose enforceable boundaries
Define service contracts, permission checks, retry rules and deployment gates.
Implement and verify
Build production code and test expected, adversarial and degraded behavior.
Deploy and operate
Release with rollback, telemetry, runbooks and a clear owner for each critical path.
FIRST-PARTY INCIDENT / ENGINEERING EVIDENCE
Production routing failure, traced and repaired
Demonic Binary's own Cloudflare Worker entered a redirect cycle when a canonical path and exported asset filename kept referring back to each other. The fix restored direct asset handling.
Read the incident and fixRECOVERY TRACE
- 01
Failure
/services → /services.html → /services
- 02
Change
Worker delegates to ASSETS.fetch(request)
- 03
Verification
Expected pages 200; missing paths 404
Based on our own published operational incident.
DELIVERABLES
What your team receives.
- Backend services and API changes
- Identity and service-boundary diagrams
- Negative-path tests and telemetry
- Deployment, rollback and operational documentation
BUSINESS BENEFITS
Clarity for the people responsible.
Reduce production surprises
Enforce access consistently
Make failures easier to diagnose
TECHNICAL WALKTHROUGH
Production debugging: trace the redirect loop
An original technical explainer based on Demonic Binary's published Cloudflare routing incident.
Read the walkthrough transcript
- The symptom is a redirect loop on the public website after an asset request.
- Trace the host, path normalization and static-asset lookup before making a routing change.
- Correct the worker-to-asset boundary without creating a redirect cycle for missing files.
- Verify canonical hostnames, expected routes, 404 responses and a reversible deployment.
SPECIALIZED SERVICES / RESOURCES
Explore the work in more detail.
Backend/API systems
Service development and integrations
Learn MoreAPI security hardening
Identity, authorization and reliability
Learn MoreProduction routing recovery
First-party incident write-up
Learn MoreFrequently asked questions
Can you work on inherited APIs?
Yes. We can trace existing interfaces and production failures before proposing targeted changes or staged refactoring.
Do you only provide architecture recommendations?
No. Implementation, testing, CI/CD and operational handoff can be part of a defined engineering engagement.
Let's work through your next challenge.
Tell us what you're building, securing or trying to improve.