Engineering Consultancy
for Vibe-Coded Apps.

It works until it doesn't. For founders who shipped fast with AI — and now need to scale, secure, and survive.

We don't tell you the vibe-coding was wrong. We harden what you built, transfer the knowledge, and stand up the team and guardrails you need to scale.

Book a 30-min teardown See what we fix
15+ yrs · production engineering
THE VIBE-CODE REALITY

You hit the wall on a Tuesday
and nothing in the AI's training data prepared you for it.

A security incident. A database that buckles. A customer asking for SOC 2. Real traction, no engineering foundation. We see the same four clusters every week.

01
CRITICAL

Security & compliance debt

API keys in the repo. Auth bolted on inconsistently. PII unencrypted at rest.

  • Secrets committed to git or exposed in client-side code
  • IDOR — users fetching other users' data by changing a URL
  • SQL / NoSQL / prompt injection paths into the LLM
  • No GDPR / UU PDP / HIPAA posture to show enterprise buyers
02
HIGH

Scaling & reliability cracks

N+1 queries everywhere. One VPS. No observability. LLM costs spiralling.

  • Database buckles the moment a real customer arrives
  • No caching, no CDN, no idea which endpoints are hot
  • You learn about outages from customer emails
  • Background jobs failing silently, payments in inconsistent states
03
HIGH

Code quality & maintainability

Thousands of lines no one understands. Each new feature gets harder to add.

  • Inconsistent style, duplicated logic, no architectural seams
  • Zero automated tests — regressions caught by paying customers
  • AI-hallucinated APIs that run today, break on next upgrade
  • Migrations applied directly to production
04
MEDIUM

People & process gaps

You're the only person who understands it — and only barely.

  • First engineering hires quit within months
  • No sprint cadence, no roadmap, no definition of done
  • Knowledge lives in chat threads with the AI
  • Investors ask for an org chart and architecture that don't exist
05 · THE INVISIBLE ONE

Engineering hygiene gaps — the missing foundation.

The unglamorous practices AI coding tools don't set up for you. Each one is invisible until it breaks something expensive.

×
No task management
Backlog lives in chat history. Bugs reappear, decisions get lost.
×
No CI/CD pipeline
Deploys by laptop script or SSH. Rollbacks are manual and slow.
×
No automated testing
Every change verified by clicking through and hoping.
×
No SAST or SCA
Nothing scans for injection, secrets, or vulnerable dependencies.
×
No code quality gate
No SonarQube, no enforced lint, no coverage thresholds.
×
No error tracking
No Sentry. You hear about crashes from support emails.
HOW WE HELP

Six modular offerings.
Buy one. Stack a few. Phase the rest.

15+ years of enterprise-grade engineering practice, packaged to respect your velocity and budget. Each module stands alone or combines into a phased engagement.

START HERE
§ 4.1

Vibe-Code Health Check

Honest map of where you stand. Cheap enough to be a no-brainer.

1–2 weeksFixed fee
  • Automated + manual code review (security, scale, maintainability)
  • Threat model & OWASP Top 10 checklist on the live app
  • Architecture diagram — often the first one ever
  • Cloud + LLM cost audit with quick-win savings
  • Prioritized backlog: critical / high / medium / low
  • 30-min executive readout for non-technical founders
INDICATIVE
from $4k
Talk to us
§ 4.2

Hardening Sprint

A focused engagement that ships the critical and high-severity fixes.

4–8 weeksFixed fee or capped T&M
  • Secrets rotation, auth/authz rebuild, input validation
  • CI/CD pipeline with SAST, SCA, protected main, one-click rollback
  • Automated testing baseline + enforced coverage floor
  • Sentry + structured logs + alerting + on-call rotation
  • Backup & DR procedure — rehearsed, not just documented
INDICATIVE
from $25k
Talk to us
§ 4.3

Scale-Ready Re-Architecture

A foundation that will carry the next 10x–100x. Selective, not a rewrite.

8–16 weeksMilestone-based
  • Service boundaries: monolithic / extracted / managed
  • Data model redesign with constraints & migration path
  • Dev / staging / prod, IaC, reproducible deploys
  • LLM architecture review: routing, caching, evals, ceilings
  • Performance & load testing with upfront targets
INDICATIVE
from $60k
Talk to us
§ 4.4

Embedded Engineering Pod

Turnkey team that plugs in and ships alongside you, transferring skills.

3–12 monthsMonthly retainer
  • Tech lead, senior engineers, QA, delivery manager
  • Onshore quality at Southeast Asia rates (JKT · YGY · SGP)
  • Agile rituals scaled to your stage — no enterprise theatre
  • Co-built docs, runbooks, ADRs that survive after we leave
INDICATIVE
from $18k / mo
Talk to us
§ 4.5

CTO-as-a-Service

Fractional CTO who attends your investor and customer technical calls.

OngoingMonthly retainer
  • Engineering org design: when to hire, what roles, what comp
  • Technical interview design + second-opinion interviewing
  • Onboarding playbook so new hires ship in weeks, not quarters
  • Investor & customer technical conversations on your behalf
INDICATIVE
from $3k / mo
Talk to us
§ 4.6

AI Engineering Excellence

Specialized advisory for the parts of the product that lean on LLMs.

Project-basedFixed fee
  • Prompt eval suites & regression testing for AI features
  • Prompt-injection threat modeling and mitigation patterns
  • RAG / vector store architecture review and cost optimization
  • Responsible-AI guidelines: PII, disclosure, bias review
  • How to keep using Cursor / Claude Code / Copilot safely
INDICATIVE
from $8k
Talk to us
THE ERASYS METHOD

One rhythm. Two weeks or two years — only the depth changes.

Every engagement follows the same transparent four phases, sized to the scope of work.

01
Discover
Understand the product, the team, and the business stakes.
Key outputs
Stakeholder mapBusiness KPIsCurrent-state architectureRisk inventory
02
Diagnose
Quantify the gap between current state and what the business actually needs.
Key outputs
Prioritized findingsRemediation roadmapEffort estimatesCost estimates
03
Deliver
Ship fixes, features, and capability transfer side-by-side with your team.
Key outputs
Working codeAutomated testsRunbooksADRsWeekly demos
04
Hand Off
Leave you stronger than we found you — even if we keep working together.
Key outputs
DocumentationTrainingHiring planClean exit-or-extend
Knowledge transfer is the deliverable
We measure success by what your team can do after we leave — not hours billed.
No enterprise theatre
Agile rituals scaled to your stage. No 40-slide steering committees.
Bilingual delivery
Stand-ups, docs and demos in English and Bahasa Indonesia. Your call.
WHY ERASYS

AI-native, not AI-anxious.

Our engineers use the same tools you use. We're not here to shame vibe-coding — we're here to make it survive contact with scale.

0
years of production engineering
0
engineers across 3 offices
0
founded · Jakarta + Singapore
banks · telcos · health
industries shipped
Anonymized cases · pilots
BankingBuilt with: Cursor

From SQL injection to enterprise-ready in 6 weeks

  • Critical IDOR closed across 47 endpoints
  • CI/CD Pipeline delivering secure and functional app
  • SOC 2 readiness pack delivered to first enterprise buyer
  • Issue tracker with proper delivery workflow / resolutions.
p95 latency4.2s → 180ms
15+ years across
BanksFintechTelcosHealthcare networksOil & gasF&B chainsLogisticsReal estateHospitalityB2B SaaSEdtechGovernment
PRICING & ENGAGEMENT SHAPES

Transparent ranges. Founder-friendly shapes.

Indicative ranges to give you a real number before the first call. Final pricing is set after a free 30-minute discovery — no surprises, no enterprise sales drama.

OfferingDurationShapeIndicativeBest fit when
Vibe-Code Health Check1–2 weeksFixed feefrom $4kcritical pain, first engagement
Hardening Sprint4–8 weeksFixed fee / capped T&Mfrom $25kafter Health Check, before scale
Scale-Ready Re-Arch.8–16 weeksMilestone-basedfrom $60kproduct validated, going 10x
Embedded Engineering Pod3–12 monthsMonthly retainerfrom $18k / moroadmap to ship, no team yet
CTO-as-a-ServiceOngoingMonthly retainerfrom $3k / mopre-Series A, no CTO yet
AI Engineering ExcellenceProjectFixed feefrom $8kLLMs are critical to product

USD · TAX EXCLUSIVE · FINAL PRICING SET AFTER DISCOVERY CALL

FOUNDER FAQ

The eight
questions we get
before every signed engagement.

If yours isn't here, it's probably the first question we'll cover on the discovery call. Or just send it ahead — book a 30-min teardown and tell us what's keeping you up.

Almost never. Rewrites are slow, expensive, and they throw away the customer learning baked into your code. The Hardening Sprint and Re-Architecture are surgical — we find the seams that need replacing and leave the rest alone. If the only honest answer is a rewrite, we'll tell you that on the discovery call, not after we've billed you.
Start with the Health Check from $4k. You walk away with a prioritized backlog and a clear sense of what's truly urgent. Most clients then either tackle the top-3 criticals themselves with our backlog as a guide, or buy a smaller capped sprint focused on just those items.
The Health Check executive readout is designed for non-technical founders. We use plain language, business impact framing, and a one-page summary. Your CTO-to-be can read the full technical appendix later.
Jakarta and Yogyakarta in Indonesia, plus Singapore. We cover GMT+7/+8 natively and overlap comfortably with US west-coast mornings and all of EMEA. Bilingual delivery (English / Bahasa Indonesia) is the default.
No. Our engineers use Cursor, Claude Code, Copilot, v0 — the same ones you use. The problem isn't AI-assisted coding; it's AI-assisted coding with no guardrails. We add the guardrails (SAST, CI, eval suites, prompt-injection mitigations) so you can keep your velocity safely.
Yes — mutual NDA is standard. We can sign yours, or use a short template we send over within the hour. Code review happens in a read-only branch on infrastructure we don't keep.
Yes for healthcare (we do HL7 FHIR and SATU SEHAT integrations), fintech, and banking. We've shipped for banks and Indonesian healthcare networks.
Health Check is fixed-fee — once it's done, we hand over the artifacts and there's nothing to cancel. Sprints have a milestone-based cancel clause. Embedded pods have a 30-day exit. Our incentive is that you keep wanting to work with us, not that you're locked in.
FREE 30-MIN TEARDOWN

Send us your app.
We'll send you back
the cracks.

Book a 30-minute discovery call. We'll look at your repo (under NDA), name the top three risks, and tell you exactly what a first sprint would cost. No pitch deck. No sales engineer.

Book the teardown
email
sales@erasysconsulting.com
whatsapp
+65 9340 9353
QUICK BRIEF · 60 SECONDS
NDA-READY
What hurts most