How should I restructure after losing my Head of Engineering?
Replace your departed Head of Engineering: hire fractional CTO (14 days), assess promotion viability, decide by Week 6. SaaS restructuring guide.
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Who This Is For
You're a non-technical founder running a £400k ARR SaaS startup where your Head of Engineering just departed, leaving you with four engineers—two senior and two mid-level—now reporting directly to you and a three-month product roadmap you need to deliver. You're weighing whether to promote your most promising senior engineer despite their lack of management experience, spend months hunting for an external replacement, or experiment with a flatter structure using squad leads instead.
What the Board Says
"Implement two-track urgent response within 14 days: (1) Engage fractional CTO/technical advisor immediately (20 hours/week minimum) to provide technical oversight, unblock decisions, and assess team/roadmap health; (2) Simultaneously conduct anonymous pulse check on senior engineers (satisfaction, roadmap confidence, career concerns) and technical audit (debt, architectural risks, delivery feasibility). Based on pulse check results, make permanent restructuring decision by Week 3: if senior engineers stable and engaged, proceed with 8-week external Head of Engineering search; if attrition signals detected, immediately offer internal promotion to most senior engineer with external hire as their future report."
Aria Hoffman "Implement two-phase approach: (1) Within 2 weeks, engage fractional CTO/technical advisor (15-20 hours/week, 3-month contract) to provide immediate technical oversight, unblock decisions, and assess team stability; (2) During Month 1, conduct structured assessment to determine permanent structure: anonymous senior engineer pulse check on satisfaction/growth/roadmap confidence, technical debt audit, and roadmap feasibility analysis."
"Implement two-phase approach: (1) Within 2 weeks, engage fractional CTO/technical advisor (15-20 hours/week, 3-month contract) to provide immediate technical oversight, unblock decisions, and assess team stability; (2) During Month 1, conduct structured assessment to determine permanent structure: anonymous senior engineer pulse check on satisfaction/growth/roadmap confidence, technical debt audit, and roadmap feasibility analysis."
"Implement two-phase approach: (1) Within 2 weeks, engage fractional CTO/technical advisor (15-20 hours/week, 3-month contract) to provide immediate technical oversight, unblock decisions, and assess team stability; (2) During Month 1, conduct structured assessment to determine permanent structure: anonymous senior engineer pulse check on satisfaction/growth/roadmap confidence, technical debt audit, and roadmap feasibility analysis. Use assessment results to decide between internal promotion (if seniors are strong and satisfied) vs. external hire (if capability gaps exist) by Week 6."
Nicole Dubois "Conditional internal promotion with 3-phase validation gate: (1) Week 1-2: Validate budget (£100-150k for coaching/advisory + £50k contingency hiring reserve), candidate willingness (does senior dev want management role and accept intensive coaching?), and peer dynamics (retention risk assessment of other 18+ month engineers)."
"Conditional internal promotion with 3-phase validation gate: (1) Week 1-2: Validate budget (£100-150k for coaching/advisory + £50k contingency hiring reserve), candidate willingness (does senior dev want management role and accept intensive coaching?), and peer dynamics (retention risk assessment of other 18+ month engineers)."
"Conditional internal promotion with 3-phase validation gate: (1) Week 1-2: Validate budget (£100-150k for coaching/advisory + £50k contingency hiring reserve), candidate willingness (does senior dev want management role and accept intensive coaching?), and peer dynamics (retention risk assessment of other 18+ month engineers). (2) If validation passes: Promote to Engineering Lead with 6-month milestone gate (not 90-day checkpoint), fractional CTO advisory at 8-12 hours/month, and explicit success metrics (delivery velocity, team retention, strategic roadmap execution). (3) Concurrent passive external search starting Month 3 - identify 2-3 warm candidates as contingency if 6-month gate shows concerning trends. If validation fails on any dimension, pivot immediately to external hire with interim flatten structure (senior dev as technical lead without direct reports, CEO manages team directly for 2-3 months during search)."
Amara Osei "Promote the senior dev to Engineering Lead with a structured 6-month probationary period, but simultaneously initiate a passive external search as contingency."
"Promote the senior dev to Engineering Lead with a structured 6-month probationary period, but simultaneously initiate a passive external search as contingency."
"Promote the senior dev to Engineering Lead with a structured 6-month probationary period, but simultaneously initiate a passive external search as contingency. Structure as: (1) Months 1-3: Internal promotion with fractional CTO advisory (8 hours/month at £3-5k/month budget), explicit success metrics around delivery cadence and team dynamics; (2) Month 3 checkpoint: Assess trajectory (not pass/fail) and adjust coaching intensity; (3) Month 6 gate: Formal promotion to permanent role OR activate external hire pipeline if metrics show sustained underperformance. Concurrent passive search: identify 2-3 external candidates through warm introductions (no active recruitment) to enable 30-45 day activation if needed at Month 6."
Recommendation
Executive Summary
Your team faces immediate risk from missing technical leadership—a non-technical CEO managing four engineers creates capacity loss and attrition risk that compounds weekly. The board recommends a two-track urgent response: hire a fractional CTO within 14 days to provide immediate technical oversight and stabilize delivery, while simultaneously conducting a confidential pulse check to assess senior engineer stability and willingness to move into management. By Week 6, use this data to make your permanent restructuring decision: promote the senior engineer with fractional CTO coaching support, or begin external search with a warm candidate pipeline already in place. This approach stops the capacity bleed immediately, buys you time to make a good decision instead of a panicked one, and derisks the timeline by having contingency candidates identified before you need them. The fractional CTO also audits whether your committed 3-month roadmap is realistic with a 4-person team—if not, you reset expectations now rather than missing deadlines and triggering attrition later.
Recommendation
Hire a fractional CTO immediately (within 14 days) to provide technical leadership and stabilize the team, then decide between internal promotion or external hire by Week 6 based on a confidential pulse check with senior engineers.
How to actually do this
Budget confirmation (£100-150k for coaching, advisory, contingency) must happen by Week 2 or restructuring plan pivots to external hire. Fractional CTO must have startup experience (5-50 person company scale), not enterprise background. Pulse check requires external tool or third-party administrator to guarantee confidentiality—conducting it yourself will suppress honest feedback. Senior engineer promotion only proceeds if pulse check confirms willingness and stability; otherwise, immediately activate external search.