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Arc Labs

Product engineering for production systems — measurable performance and operational stability.

Paid audit → intensive cycle → retainer, with clear deliverables and before/after metrics. Remote across Portugal and the EU.

See solutions

If there’s no fit, I’ll tell you in 15 minutes.

  • Prioritised plan in 48 hours to 5 days (scope-dependent)
  • Improvements in 5 or 10 days with acceptance criteria
  • Code review + checklist + tests when applicable

PIR in three steps

P

Paid audit

Baseline, risks, and a prioritised plan.

I

Intensive cycle

Focused execution with measurable outcomes.

R

Retainer

Predictable capacity and continuous evolution.

Proof points

  • Production systems: APIs, dashboards, integrations, automation
  • Work with internal teams + freelancers, with ownership and mandatory review
  • Focus on P95, error rate, costs, and the release process

How we work

Three steps with concrete deliverables.

1

Paid audit

In 1–5 business days (scope-dependent), we establish a baseline and deliver:

You leave with a prioritised, executable plan.

  • Risk map (security, architecture, performance)
  • Prioritised list (impact × effort)
  • Actionable recommendations + quick wins
  • Execution plan (5/10 days or 3–6 months)
Request audit scope
2

Intensive cycle

5 or 10 days of focused execution with acceptance criteria.

You leave with shipped improvements + before/after.

  • Defined scope and acceptance criteria
  • Implementation + handover
  • Before/after report with metrics
See what fits in 5 days
3

Retainer

Predictable capacity with monthly planning and quarterly review.

You get predictable capacity and fewer regressions.

  • Monthly planning + priority queue
  • SLA-style response for incidents
  • Continuous evolution with quarterly review
See retainer options

Definition of done

Acceptance criteria + checklist for every deliverable.

Scope control

Anything outside scope triggers a transparent add-on proposal before starting.

Access and safety

Least-privilege access, NDA when needed, and safe environments.

Services

Clear scope, measurable outcomes, and delivery you can predict.

Web presence

For B2B teams that need credibility and conversion without bloated scope.

Conversion landing page

Campaigns and validation with a focused narrative.

Included

  • Wireframe + base copy + responsive design
  • Implementation (WordPress or static) + analytics
  • Basic on-page SEO + performance pass

Not included

  • Full branding from scratch (add-on)
  • Complex product features
See deliverables

Institutional site

Credibility and lead capture for B2B teams.

Included

  • Information architecture + messaging
  • Design system + CMS setup
  • Lead capture + on-page SEO

Not included

  • Large content migrations (add-on)
  • Custom app features
See deliverables

Monthly care plan

Continuous updates with predictable scope.

Included

  • Content updates + monitoring + fixes
  • Small improvements and new sections
  • Performance and security checks

Not included

  • Large redesigns or app builds
  • Open-ended backlog
See care plan

Product engineering

For production systems that require performance, stability, and cost control.

Paid audit

Clarity on risks, bottlenecks, and next steps.

Included

  • Baseline metrics + risk map
  • Prioritised list (impact × effort)
  • Execution plan (5/10 days or 3–6 months)

Not included

  • Implementation work (book an intensive cycle)
Request audit scope

Intensive cycle (5 or 10 days)

High-impact improvements in a short window.

Included

  • Defined scope + acceptance criteria
  • Implementation + handover
  • Before/after report with metrics

Not included

  • Open-ended backlogs
See what fits in 5 days

Retainer

Predictable engineering capacity.

Included

  • Monthly planning + priority queue
  • SLA-style response for incidents
  • Quarterly review + roadmap alignment

Not included

  • Unlimited capacity
See retainer options

Fit check

Clarity on fit reduces wasted calls.

Best for

  • Teams with production systems and real users
  • Need predictable performance, costs, and stability
  • Legacy or complex systems where risk must be controlled

Not for

  • Looking only for the cheapest dev capacity
  • Projects without an internal owner
  • No access to metrics or production data

Solutions

Engagements that keep scope and outcomes clear.

Pricing on request. We share ranges after a 15-minute call to confirm fit and scope.

Engagements

Paid audit (2 to 8 days)

You leave with a prioritised, executable plan.

Intensive cycle (5 or 10 days)

You leave with shipped improvements + before/after.

Retainer (monthly capacity)

You get predictable capacity and fewer regressions.

Request scope

Examples

Short, structured mini-cases focused on outcomes.

API performance improvement

Context: API with latency spikes during peak hours.

Objective: Reduce P95 and stabilise costs.

What we did

  • Baseline with APM/logs and top bottlenecks
  • Query optimisation, caching, and background jobs
  • Observability and alerting

Result: P95 improved and error rate stabilised; alerting and guardrails in place.

Metric: P95, error rate, DB time

Duration: 10 days

Legacy migration to Laravel

Context: Legacy app with brittle domains and unclear ownership.

Objective: Migrate with minimal risk and clear milestones.

What we did

  • Paid audit and phased plan before any large refactor
  • Execution in 2 to 4-week phases with acceptance criteria
  • Migration tracked by domains and endpoints

Result: Migration plan validated and executed without surprises.

Metric: lead time, incident rate

Duration: Phased, 3–6 months

React Native stability

Context: Mobile app with crash spikes after releases.

Objective: Reduce crash rate and improve startup time.

What we did

  • Crash analysis + remediation plan
  • Performance profiling and startup improvements
  • Release process hardening and instrumentation

Result: Crash rate down and release confidence restored.

Metric: crash-free sessions, startup time

Duration: 5 days + follow-up

Frequently asked questions

Do you work only with Laravel?

No. We also work with Node.js, React, Next.js, and React Native.

How do you handle access to code and data?

NDA when needed, least-privilege access, and safe environments.

How do you define "done"?

Acceptance criteria + checklist for every deliverable, plus a report.

What if surprises appear mid-project?

We control scope and propose transparent add-ons before extra work.

Can you work with legacy without rewriting everything?

Yes. We use phased plans and reduce risk before large refactors.

How long does an audit take?

Typically 1 to 5 business days, depending on scope and access.

What is included in a 5-day intensive cycle?

Defined scope, implementation, and a before/after report.

Do you work with clients outside Portugal?

Yes. We serve clients across the European Union remotely.

Trust & assurance

  • Acceptance criteria and checklists.
  • Deliverables and knowledge transfer at every phase.
  • Confidentiality and responsible data practices.

Contact

Tell us what hurts now. We reply within two business days.

Quick form

Response within two business days.

Prefer a quick call?

In 15 minutes we align fit and next steps.

No commitment.

Pricing on request. We share ranges after a 15-minute call to confirm fit and scope.