Small technical team

One developer carries all technical responsibility

One developer concentrates all technical responsibility at your company. Risk isn't theoretical: illness, departure, vacation, burnout. You don't need a second full-time hire, you need continuity, perspective, and peace of mind when production is down and your main developer doesn't answer.

One day a week structures deep work; in parallel, we frame day-to-day value, gradual backup, and dependable coverage (reachable on weekdays, urgency and weekends agreed up front).

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Peace of mind

Reachable and dependable, even at one day a week

In this situation, it's often not the most visible point, but the one that matters most to leadership: knowing who answers when production is down and your main developer is overloaded or unreachable. One day a week structures deep work; reachability and emergencies are framed separately from day one.

  1. Reachable throughout the week

    You don't wait for the scheduled day to talk: I stay reachable on Slack or the channel you already use. Questions, trade-offs, early signals: we keep the thread without turning every ping into a meeting.

  2. Emergency when your main developer doesn't answer

    If production breaks and your main developer can't take the call, I step in under an emergency frame we define together: scope, priority, response time. Not a vague 24/7 on-call promise, but a clear commitment on what triggers intervention.

  3. Weekends: agreed windows and limits

    Weekends aren't « off limits » by default: we can agree windows and limits (time bands, incident types, escalation). Everything is written up front so no one has to guess whether « this counts » as an emergency.

  4. What leadership gains

    Less mental load when all tech rests on one person: dependability, visibility, and backup without hiring a second full-time developer or micromanaging your lead.

The risk

Bus factor, in practice

Your main developer stays owner of the code and decisions. My role isn't to compete: it's to reduce single-point dependency, speed up reviews, and be the reliable backup when they're away, overloaded, or unreachable in an emergency, because we prepared together.

If you're preparing a first hire or product leadership instead, see Post-funding: before your first full-time developer and Need a PM or PO, without full-time.

What we set up

Day-to-day value and gradual backup

Learning the codebase

Light documentation, tour of critical areas, access and conventions, without reading every line. Goal: intervene on essentials within weeks, not duplicate your lead's head.

Value from the first weeks

Architecture reviews, unblocking, prioritization, targeted debt. Your dev gets a senior peer one day a week, not an auditor who shows up once a year.

Light backup, not a clone

We write what's covered in an intervention (fixes, deploys, level-2 support) and what triggers an emergency. You know what to expect: no black box when your developer is overloaded or away.

Reachable on weekdays, off mission day

Mission day structures deep build; in between, I stay reachable on Slack or your channel for day-to-day topics. No waiting until the next slot for a trade-off or early signal.

Vacation and agreed on-call

When your developer is on vacation, we activate a framework we've already tested: channels, incident priority, availability windows. On-call agreed in advance, not Monday-morning improvisation.

Rome

How I build

Technical foundations

Backup on your existing stack: we check early whether I'm aligned with your languages, frameworks, and tooling, then reviews, runbooks, and prioritization without disrupting your primary developer's day to day.

Repo, CI/CD, hosting, and integration mapArchitecture and code reviews on the current stackDocumentation and backup runbooksTests, regression, and targeted technical debtPairing and handover with your primary developerPHP · Laravel · REST APIsJavaScript · TypeScript · Node.jsReact · Next.js · VueWordPress · headless · Gutenberg/blocksSQL · Redis · queues · third-party webhooksCI/CD · Docker · monitoringJavaScript · PHP

Objections

Common questions

I frame it as backup for them: less solo pressure, faster reviews, someone who knows the context when they need time off. Leadership clarifies the lead keeps ownership; I'm not there to take their job.

Often yes, for gradual knowledge and a safety net, with clear scope. It's not a second full-time role: it's insurance and acceleration. Mission day structures deep build; in between, reachability and emergencies follow a frame defined up front, not waiting until the next slot.

We clarify that in the first conversation: languages, frameworks, hosting, debt level. My deepest hands-on experience is in JavaScript and PHP ecosystems (Laravel, React, Next.js, Vue, WordPress, Node). On another stack (Python, .NET, Go, etc.), I can often still bring architecture, reviews, prioritization, and emergency backup; hands-on build depends on context, and we decide without vague promises.

Repo and tool access per your policy, NDA if required. I don't publish your code: work stays in your systems. We define who sees what on the first conversation.

The agreed rhythm (e.g. one day a week) structures deep work, not whether you can reach me.

Ongoing, I make time to reply on Slack or your preferred channel. If your main developer doesn't answer in an emergency, we apply a shared urgency frame we define up front (scope, priority, response time), not a vague 24/7 on-call promise.

Next step

All technical responsibility on one developer? One call is enough to see if one day a week, with dependable emergency coverage, gives you margin without disrupting your team.

Discuss bus factor

LinkedInhello@lucrousseau.com

Next step

Let's talk about your context

A 30-minute call to see if fractional support (product, technical, or both) fits your situation in Quebec.

30 min · no commitment · video or phone

The fastest way to clarify scope and next steps.

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