1. Consulting services
  2. Backfilling technical leadership roles

Backfilling technical leadership roles

When a technical leader leaves your organisation — whether through parental leave, promotion, departure, or lateral move — you face a critical gap that can't wait. Your team needs leadership continuity while you find the right permanent solution. That's where we come in.

We provide experienced technical leaders who step into your vacant role, maintain momentum, and keep your team shipping — giving you the time and space to make the right long-term hire.

What does it mean to backfill a position?

Backfilling means replacing someone who has left an existing role to maintain continuity in your organisational structure. You're filling the vacancy left behind ("filling back") so work doesn't grind to a halt.

When a technical leadership position goes empty, the impact ripples immediately: decisions stall, team members lose direction, stakeholders lose confidence, and projects drift. You need someone who can step in and lead — not in six months, but now.

The challenge: you can't afford to wait

When a technical leader leaves, you face impossible pressure:

  • Your team needs direction and decisions now
  • Stakeholders are asking questions you can't answer
  • Projects are stalling without clear leadership
  • You're being pushed to hire quickly—but rushing leads to bad hires
  • Your remaining leaders are stretched thin covering the gap
  • Quality candidates take months to identify, interview, and close

You're stuck between moving too fast and leaving your team leaderless for too long.

Our solution: experienced leaders, immediate impact

We provide seasoned technical leaders who step into your vacant role and deliver what your team needs:

What we do

  • Immediate leadership presence
    We start leading from day one. Your team gets clear direction, decisions get made, and work keeps moving forward.
  • Maintain team momentum
    We keep your engineers shipping, ensure projects stay on track, and preserve the progress you've worked hard to build.
  • Stakeholder management
    We handle communication with leadership, product partners, and other teams — so they stay confident and informed.
  • Support your hiring process
    We understand the role from the inside, can help evaluate candidates, and ensure smooth handoff when your permanent hire arrives.
  • Build, don't just maintain
    We're not caretakers. We actively strengthen team practices, improve processes, and develop your people while we're there.
  • Knowledge transfer
    When we transition out, we ensure your new permanent leader has everything they need to succeed.

Why we work

  • We've been in your shoes
    We're not consultants — we're technical leaders who've built and scaled teams. We understand the pressures, the tradeoffs, and what actually works.
  • We integrate, we don't advise
    We don't show up with slide decks. We show up as part of your team, in your systems, making real decisions and delivering real outcomes.
  • We're coaching while we're leading
    While we backfill, we're also developing your team's capabilities. We leave your organisation stronger than we found it.
  • Flexible engagement
    Whether you need us for six weeks or six months, we adapt to your timeline and transition out smoothly when you're ready.

Lachlan stepped into the role of VP of Engineering at Forage on a six month interim basis (after consulting for the company during the year beforehand).

In this role, Lachlan led our team of thirteen software engineers, and played a crucial role in the company’s leadership team. Building an engineering team at a high-growth early stage startup is difficult at the best of times, but Lachlan made it look easy as he embraced the role and our mission with determination and empathy.

The coaching, support, and guidance he provided as an engineering leader was instrumental in shaping our engineering culture, our ability to execute on our product goals, as well as building a world-class platform that could support millions of users. Lachlan was also critical in finding, hiring, and onboarding our next permanent VP of Engineering.

If you’re looking for a driven, kind, experienced engineering leader to assist with coaching, leadership, or general engineering consulting, I could not recommend Lachlan and his team highly enough — the Forage team is extremely lucky to know him.

Tom Brunskill, Co-founder and CEO, Forage

When you need a backfill

Backfilling makes sense when:

  • A technical leader has left suddenly and you can't afford the gap
  • You're promoting someone internally but they need time to transition
  • You're conducting a thorough search and won't compromise on quality
  • Your remaining leaders are overwhelmed covering the vacant role
  • Projects are at risk without clear technical leadership
  • Stakeholders are losing confidence in team direction
  • You need someone effective immediately, not after months of onboarding

Beyond backfilling: building your team's capability

Here's what makes our backfills different: we're not just filling a gap, we're building your internal leadership capability.

While we're in the role, we're also:

  • Coaching the leaders around us to strengthen their skills
  • Developing your team members who might step up in the future
  • Creating frameworks and practices that outlast our engagement
  • Transferring knowledge so you're more resilient next time

When we transition out, you don't just get a vacant role filled — you get a stronger team that's better equipped to handle leadership transitions in the future.

Stop scrambling, start leading

You shouldn't have to choose between a hasty hire and months of leadership vacuum. You shouldn't have to burn out your remaining leaders trying to cover the gap.

We step in, lead effectively, and give you the time to make the right permanent decision.

Let us backfill your technical leadership role so your team keeps shipping, your stakeholders stay confident, and you can find the right long-term leader without compromise.

Want to know more?

Schedule a call to meet with us online and talk through your challenges and learn how we can work together.

Or drop us a line to tell us about your challenges and we'll get back to you.

Book a call

Lachlan and the Blackmill team have been an important resource for us, helping us launch a number of key projects, such as our plugin directory and careers site. They’ve let our product team stay focused on their existing projects, fit in with our existing dev tools and processes, and their management experience means they’ve been proactive, self-managing and extremely communicative. Would recommend them to any team in a heartbeat.

Tim Lucas, co-CEO, and co-founder, Buildkite

Lachlan's contribution to the Engineering and Design team at Data61 has been extremely well received. He came on as a maternity leave backfill for our FED team leader, working on project delivery as well as coaching the team resulting in two successful promotions.

On the back of this, as well as his broad and highly professional (and great positive attitude) we engaged him further to provide production operations coaching to various early stage technology project teams needing advice on technology stack, team culture and production goals as well as Data61 Executive Team coaching for the organisational implementation of Objectives and Key Results.

I look forward to working with him again.

Hilary Cinis, Director, Engineering and Design, Data61

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