Crescentek

Technical Expertise on Demand

Senior technical answers when you need them.

Architecture advice, code reviews, security checks, performance diagnoses — without hiring a technical director. Access senior-level expertise for a session, a day, or a retained block of hours.

Based in Ireland
GDPR compliant
Reply within 1 working day
Technical advisory — on demand
Architecture
Q

Should we use SSR or CSR for this product catalogue?

What we advise on

Six areas where expertise matters.

Technical questions that need a senior developer — not a Google search or a forum thread.

Architecture decisions

Should we build a monolith or split services? What's the right data model for this use case? Which framework fits long-term?

Performance diagnostics

Slow queries, N+1 problems, bad caching strategy, oversized bundles — we find the actual bottleneck, not the symptom.

Security review

Auth implementation, OWASP basics, dependency audit, GDPR technical obligations — a second set of expert eyes before it goes live.

Code review and audit

We review what your team or a previous agency built and give you a written assessment of quality, risk, and what we'd prioritise fixing.

Technical due diligence

Acquiring a digital product or business? We assess the technical debt, scalability risk, and hidden maintenance costs before you sign.

Debugging and rescues

Something broke in production. A legacy system has an unexplained issue. We dig into unfamiliar codebases and find what others missed.

How to engage

Three formats. Pick what fits the ask.

A quick question doesn't need a monthly retainer. A complex system audit doesn't fit a 90-minute call. We match the format to the need.

Single session

A 90-minute technical call for a specific question — architecture advice, code review, or debugging session.

Per session
Day rate

A full day for a detailed review, audit, or intensive debugging engagement.

Per day
Retained hours

A block of hours per month for ongoing technical advisory — questions answered, PRs reviewed, decisions supported.

Monthly block
Situations where this helps
Your team is stuck on a technical decision and needs an outside view
You've inherited a codebase and need to understand what you're dealing with
You're about to launch and want a second pair of eyes on security and performance
A client is asking technical questions your account team can't answer
Something is broken and your developer can't find the root cause
You want to know whether to rebuild or refactor before committing budget
Common questions

Technical advisory questions answered.

The questions Irish SMBs ask us most often.

Yes, that's usually how it starts. A 20-minute scoping call where you describe the situation is enough for us to confirm whether we can help and what the right format is. No prepared brief required.
For retained clients, same-day responses are standard. For new requests, we aim to schedule within 48 hours. If it's genuinely urgent — production is down, launch is tomorrow — tell us and we'll do our best to prioritise.
Yes, and we do this regularly. We review the codebase, write a structured assessment of what we find, and give you a prioritised list of what we'd address and why. We're honest about what's good as well as what isn't.
We can scope a separate engagement to implement the fix. Technical advisory and delivery are separate but complementary — the advisory tells us what needs doing, the delivery does it.
Effectively, yes. Some agencies retain us for a block of hours per month specifically for this — we're the technical escalation point for client questions, review major decisions, and do occasional code reviews. It's not a formal role but it serves the same function.
Yes. Client details, project specifics, and any code we review are covered by the same NDA that applies to all our engagements. We don't discuss one client's architecture with another.

Got a technical question that needs a real answer?

Book a 20-minute scoping call. Describe the problem. We'll tell you what the right engagement looks like.

Reply within 1 working day GDPR compliant Based in Ireland