From 0 to 10 Engineers in 90 Days: A Case Study in Rapid Team Scaling

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Scaling from zero to ten engineers in 90 days is achievable through LATAM nearshoring, cutting hiring time from 52-62 days to 16-28 days while saving 60-68% on engineering costs.

LATAM has more than 2 million active developers and adds 220,000+ STEM graduates annually. Senior engineers in Mexico, Brazil, Argentina, and Colombia cost $65-$95 per hour versus $285,000-$375,000 total annual compensation in San Francisco. Specialized talent partners fill roles in 2-4 weeks, compared to 62 days for US engineering roles.

This case study covers the full 90-day playbook: week-by-week hiring timelines, compensation benchmarks, onboarding infrastructure, and the exact team structure that delivered 10 engineers, zero attrition at six months, and a 3x increase in feature output.

What Is Rapid Team Scaling?

Rapid team scaling means building a functional engineering team in weeks instead of quarters. You compress the hiring timeline without sacrificing technical quality. The goal is operational speed: getting engineers writing production code while competitors schedule second-round interviews.

For sourcing strategies across the region, see our guide to hiring software developers in Latin America.

How Does Rapid Team Scaling Differ from Traditional Hiring?

Nearshore LATAM hiring cuts total time-to-fill from 52-62 days to 16-28 days, a 60% reduction across every stage of the funnel.

MetricUS Domestic HiringNearshore LATAM HiringTime Reduction
Total time-to-fill52-62 days16-28 days60%
Sourcing to initial screen10 days3 days70%
Technical interviews21 days7 days67%
Leadership and culture fit14 days4 days71%
Offer acceptance cycle7 days2 days71%

When Should Startups Consider Rapid Team Scaling?

Growth-stage companies with $5M to $100M in revenue get the most value from rapid scaling. SaaS, FinTech, HealthTech, and EdTech companies use it when time-to-market dictates competitive outcomes. Rapid team scaling makes sense when technical hiring speed separates market leaders from those who fall behind.

Why Did We Need to Scale from 0 to 10 Engineers in 90 Days?

Three factors converged within a single quarter to make rapid scaling unavoidable.

What Business Triggers Demanded Rapid Engineering Team Growth?

Three converging pressures forced the decision within 90 days.

  • Customer support tickets related to missing features grew 340% quarter-over-quarter.
  • Enterprise clients demanded APIs within 90 days or we would lose $2M in ARR.
  • A competitor announced features that would reduce our core offering to a commodity within six months.

The company had to ship the roadmap or lose ground permanently.

What Funding or Growth Milestones Created the Hiring Urgency?

A $12M Series A created the capital and the obligation to deploy it. Investors funded an 18-month runway tied to hitting $15M ARR by month 12. The financial model assumed 8-12 engineers at full capacity by quarter two. Without rapid hiring, the company would burn capital on sales and marketing while lacking the capacity to retain customers.

What Were the Biggest Challenges Before We Started Hiring?

The company had no engineering infrastructure before the hiring sprint began. Understanding the starting point explains why decisions were made in sequence.

How Did We Operate with Zero Engineering Capacity?

The system broke completely at 50 customers. Support costs per customer hit $400 monthly. The CEO spent 15 hours per week on tasks that required basic backend logic. Customer onboarding required 6 hours of manual work per account with no automation layer.

What Technical Debt Accumulated While Waiting to Hire?

The codebase consisted of 14 disconnected scripts written by five different contractors, with no documentation and no version control for the first eight months. Security audits identified 23 vulnerabilities in customer-facing endpoints. Deploying changes required 90 minutes of manual steps and frequently caused downtime.

How Did We Prioritize Which Engineering Roles to Fill First?

We hired backend engineers first because without stable services, every other engineer would inherit an unfixable foundation. Backend engineers (hires 1-3) built data architecture and API infrastructure. DevOps engineers (hires 4-5) established CI/CD pipelines and monitoring. Frontend engineers joined at week 7+ once backend services were stable. Specialized roles were deferred until the platform could handle basic workflows reliably.

How Did We Build Our Hiring Strategy for Rapid Team Scaling?

The hiring strategy centered on pre-vetted talent networks. Cold outreach through LinkedIn would have added weeks to the timeline before the first screen was completed.

What Sourcing Channels Did We Use to Find Engineering Talent Quickly?

LATAM hosts more than 2 million active developers and adds 220,000+ STEM graduates annually across key tech hubs.

CountryActive DevelopersAnnual STEM GraduatesTech Hubs
Brazil630,000+50,000+Sao Paulo, Rio
Mexico560,000+130,000+Mexico City, Guadalajara
Colombia165,000+20,000+Bogota, Medellin
Argentina150,000+15,000+Buenos Aires

We partnered with a LATAM-focused recruiting firm with existing talent networks across all four countries. This gave us access to pre-vetted candidates who had already cleared initial technical screens. We avoided general job boards entirely.

How Did We Balance Hiring Speed Against Candidate Quality?

Specialized LATAM talent partners reduce time-to-hire to 2-4 weeks. We hit the lower end by running multiple candidate pipelines in parallel and making offers within 24 hours of final interviews. Candidates arrived pre-validated for English proficiency, timezone compatibility, and technical baseline. We focused interview time on architecture decisions and problem-solving approach.

What Was Our Approach to Compensation and Equity for Rapid Hires?

We paid at the 75th percentile of LATAM market rates and saved 60-70% compared to US domestic hiring. That savings funded our ability to hire 10 engineers instead of 4.

LATAM hourly rates by seniority (2025):

CountryMid-LevelSeniorTech Lead
Mexico$45-$65$75-$95$100-$130
Brazil$40-$60$70-$90$95-$120
Argentina$35-$55$65-$88$90-$115
Colombia$35-$55$65-$88$90-$115

US domestic comparison (total employer cost with 40% burden):

MarketSenior Engineer Total Cost
San Francisco$285,000-$375,000
Austin$235,000-$300,000
US Median base$133,080 + 30-50% burden

Offers used 70% base salary and 30% performance bonus tied to quarterly OKRs. Equity vested over four years with a one-year cliff.

What Interview Process Did We Design for Fast Engineering Hiring?

The interview process eliminated low-signal stages and replaced them with practical work. This design let us make offers within 24 hours of final rounds.

How Did We Streamline Technical Assessments Without Sacrificing Accuracy?

We replaced multi-stage algorithm interviews with a single practical assessment. Candidates spent 2-3 hours building a feature using our tech stack, then presented their solution in a live 60-minute code review. This tested real skills, not memorized algorithms.

Regional tech stack proficiency:

TechnologyMexicoBrazilArgentina
React.js41%38%32%
Node.js35%38%26%
Python18%20%20%

What Role Did Culture Fit Play in Our Rapid Hiring Decisions?

Culture fit focused on communication and collaboration, not personality matching. Argentina ranks 26th globally in the English Proficiency Index for non-native speakers. In Mexico City, Guadalajara, Bogota, Medellin, and Sao Paulo, English fluency is high in tech hubs. We evaluated for culture add by assessing how candidates handled disagreement, deadline slippage, and documentation of complex systems.

How Many Interview Rounds Did Candidates Complete?

Three rounds over five days, with hiring decisions within 24 hours of the final round.

  • Round 1: Take-home assessment and live code review using our tech stack.
  • Round 2: System design discussion 48 hours later with the engineering lead.
  • Round 3: Team collaboration evaluation 48 hours later with the hiring manager.

Additional interviews added no predictive value and increased the risk of losing candidates to competing offers.

How Did We Manage the Hiring Timeline Across 90 Days?

The 90-day plan ran in three distinct phases, each with a defined objective and a clear handoff to the next.

What Was Our Week-by-Week Hiring Plan?

TimelineFocusKey ActivitiesHires
Weeks 0-2FoundationDocument standards, set up CI/CD, configure observability, define Definition of Done0
Weeks 3-6Senior nucleusHire 2-3 senior engineers, deliver thin slice feature, validate processes3
Weeks 7-12Squad expansionOnboard mid-level, QA, DevOps in staggered cohorts of 2-3 per week7
Day 90Steady stateTeam ships weekly, maintains 95%+ uptime, reduces support tickets 60%10

Weeks 0-2 resolved missing environments, unclear deployment processes, and undocumented architecture before we extended offers. Weeks 3-6 focused on senior engineers who delivered a thin slice feature: a small, valuable, testable feature that touched the full stack. Weeks 7-12 brought rapid squad expansion using staggered cohorts to prevent overwhelming senior engineers with mentorship load.

How Did We Coordinate Multiple Offer Processes Simultaneously?

We assigned a dedicated hiring coordinator who managed all scheduling, communication, and offer logistics. We batched final interviews on Tuesdays and Thursdays, creating decision points twice per week. For every offer extended, we maintained two additional candidates who had cleared technical screens. Actual rejection rate was 15%, below our planned 20%.

What Onboarding Process Did We Create for 10 New Engineers?

We built the onboarding infrastructure before the first engineer started. Pre-built systems enabled 100% productivity within two weeks, compared to 4-6 weeks for US hires.

How Did We Prepare Infrastructure Before the First Engineer Started?

We used an Employer of Record (EOR) service to handle payroll, benefits, and compliance across four countries. The EOR enabled 12-hour onboarding from offer acceptance to day one, avoiding the six-month delay of setting up local entities. The service cost 8-12% of salary.

Each engineer received laptop hardware, AWS credentials, GitHub access, Slack workspace membership, and VPN configuration on day one. Engineers could run the full application stack locally and execute tests within two hours of starting.

What Did the First Week Look Like for Each New Hire?

Pre-vetted nearshore engineers reached 100% productivity within two weeks versus 4-6 weeks for US hires. The difference came from structured onboarding, not geography.

  • Day 1: Meet team, review company strategy, configure development environment. No coding.
  • Days 2-5: Complete a small bug fix from the backlog. Submit a pull request reviewed by a senior engineer.
  • End of week 1: Ship code to production. New hires see the deployment process works and their contributions matter.

How Did We Assign Onboarding Buddies and Mentors?

Each new hire paired with a senior engineer for 30 days. Buddies committed four hours per week to onboarding support. A backend engineer in Mexico City paired with our senior backend engineer in New York. The four-hour timezone overlap was sufficient for daily syncs and code reviews. Senior engineers in the first cohort became buddies for later cohorts. By week 7, our initial three senior hires were onboarding the next wave.

How Did We Build Team Structure During Rapid Engineering Growth?

We built a full-stack managed squad with product ownership, development, and QA in one unit. The structure is what kept the team autonomous and eliminated coordination overhead.

What Team Organization Model Did We Implement?

The $1.5M budget that funded 10 LATAM engineers would have covered only 4 senior engineers in San Francisco. The recommended seniority ratio is 20% Senior, 60% Mid, and 20% Junior, which is what we implemented.

Team composition:

  • 1 Product Owner
  • 2 Senior Engineers (20%)
  • 5 Mid-level Engineers (60%)
  • 1 Junior Engineer (20%)
  • 1 QA Specialist

The squad owned the full lifecycle from requirements to deployment, eliminating handoffs with separate product or QA teams.

How Did We Establish Engineering Processes from Scratch?

We matched hiring to regional tech hub strengths. Mexico City and Guadalajara provided SaaS and e-commerce expertise. Sao Paulo brought FinTech strength. Bogota and Medellin, backed by the Ruta N innovation district and ProColombia’s investment programs, provided cloud infrastructure expertise for DevOps roles. Buenos Aires offered AI and blockchain capabilities for future roadmap work.

What Communication Practices Did We Set Up for the New Team?

The 0-3 hour timezone difference between LATAM hubs and US time zones provides 4-8 hours of daily synchronous overlap. This was the decisive advantage over Asian offshore models, which suffer a 21-day average delay in project milestones due to communication lag.

CityTimezone vs ESTSynchronous Overlap
Mexico City-1 to -2 hours6-7 hours
BogotaSame as EST8 hours
Sao Paulo+1 to +2 hours6-7 hours

Overlap hours covered architecture discussions, pair programming, incident response, and sprint ceremonies. Non-overlap hours were protected for focused coding. Verbal decisions did not count until documented in GitHub issues or Notion.

What Results Did We Achieve After Scaling to 10 Engineers?

By day 90, all 10 engineers had shipped code to production. The team maintained 98% uptime in the final month. Customer support tickets related to missing features decreased 45%.

How Quickly Did New Engineers Become Productive?

Pre-vetted nearshore engineers reached 100% productivity within two weeks: senior engineers shipped production code in week one, mid-level engineers reached full productivity by week two, and junior engineers contributed meaningful work by week three. By week 12, the team was merging 68 PRs per week, up from 47 at week 8. Production incidents dropped from 3-4 per week to fewer than one.

What Impact Did the Team Have on Product Velocity?

Feature shipping accelerated 30% compared to the contractor-based model. Time from feature request to deployment dropped from 12 weeks to 3 weeks.

DORA metrics improvements:

MetricBeforeAfterImprovement
Cycle time8 days2.3 days71% faster
Deployment frequencyBi-weeklyDaily14x increase
MTTR4 hours47 minutes80% faster
Sprint velocityVariable89 pointsStabilized

Features shipped increased 3x: 7 features in the 60 days before hiring, 23 features in the final 60 days of the quarter. Enterprise clients received requested integrations on time, closing $1.8M in contracts that previously stalled on product gaps.

What Was Our Retention Rate After Six Months?

All 10 engineers remained at six months, with zero attrition. Average tenure for nearshore developers runs approximately 3 years, compared to 18-24 months for US market averages. Stay interviews ranked clear growth paths, meaningful work, and respectful culture as the top three retention drivers.

What Are the Advantages of Rapid Team Scaling?

Two advantages stood out at the six-month mark: time-to-market compression and cost efficiency that tripled engineering capacity.

How Does Rapid Scaling Accelerate Time to Market?

Rapid scaling cut time to market by 65% for major initiatives. A feature that previously required 12 weeks of sequential work took 4 weeks with dedicated squad ownership. Three parallel workstreams ran simultaneously: customer-facing features, internal tooling, and platform infrastructure. The feature request backlog dropped from 47 items to 12 within four months. Customer satisfaction scores increased 28%.

What Competitive Advantages Did We Gain?

The cost savings let us triple engineering output for the same budget. Over 24 months, the 10-person LATAM team cost 60-68% less than a comparable US tech hub team.

ROI calculation:

  • US costs: $2.4M.
  • LATAM costs: $1.5M.
  • Direct savings: $900,000.
  • Velocity value gains: $600,000 (faster customer acquisition, reduced churn).
  • Total ROI: 100% in year one.

For companies building specialized teams, see our full-stack developer hiring guide.

What Are the Risks of Scaling from 0 to 10 Engineers in 90 Days?

Rapid scaling introduces three categories of risk, each with a mitigation strategy that can be implemented before the first hire.

How Does Rapid Hiring Impact Team Culture?

Three cultural risks emerge when 10 engineers join simultaneously. Assign clear domain ownership from day one to prevent the tragedy of the commons in codebases. Integrate LATAM engineers into all team rituals from the start to prevent a two-tier system where offshore talent receives less interesting work. Enforce documentation standards so decisions made verbally do not count until written in GitHub issues or Notion, preventing communication gaps.

What Are the Quality Risks of Fast Hiring?

False positives are mitigated by 90-day probationary periods with explicit milestones: ship production code in week one, complete a significant feature by week six, demonstrate independent problem-solving by week twelve. We had one performance-related separation out of 10 hires.

Accelerated technical debt is mitigated by weekly architecture reviews where the team identifies inconsistencies and agrees on remediation plans. Allocate 20% of sprint capacity to technical debt alongside feature work.

How Does Rapid Scaling Affect Existing Team Members?

Leadership faces 70-80% time allocation to hiring and onboarding during weeks 3-8. Explicitly pausing non-essential work lets leadership focus fully on team building. The first senior backend engineer became a technical lead within four weeks. Have explicit role conversations during hiring so engineers can choose IC or leadership tracks. Existing contractors felt threatened: communicate transition timing clearly and offer contract extensions for knowledge transfer.

What Would We Do Differently If We Scaled Again?

The biggest lessons fell into interview design and early infrastructure investments.

What Hiring Process Improvements Would We Make?

Four changes would improve the next sprint: run pilot technical assessments two weeks before finalizing job descriptions; replace system design interviews for mid-level candidates with debugging exercises; batch all offers once 4-5 strong candidates are ready rather than extending offers one at a time; and create a candidate pitch deck to prevent dropoffs from candidates who do not understand company vision or technical challenges.

What Early Investments Would Have Prevented Later Bottlenecks?

Four investments would have prevented the most painful weeks: implement code review rotation from day one, not after the week 7 backlog crisis of 23 open PRs; hire a contract technical writer for the first 90 days; prioritize automated testing before any feature work; and hire the DevOps specialist in week 3 instead of week 10 to prevent deployment bottlenecks in weeks 6-9.

How Does This Approach Compare to Gradual Team Building?

Rapid scaling and gradual building suit different business contexts. The decision comes down to the cost of delay versus the cost of short-term chaos.

What Are the Cost Differences Between Rapid and Gradual Scaling?

Rapid scaling delivered 60-65% total cost savings compared to domestic hiring. The $1.67M we spent on 10 LATAM engineers would have funded 4-5 US engineers. Gradual scaling also carries hidden costs: opportunity cost from delayed hiring, higher per-hire recruiting fees (15% premium for individual placements versus batch hiring), and 10-15% of the CTO’s time committed to hiring continuously for a year instead of 12 concentrated weeks.

How Do Timeline Expectations Differ?

ApproachTimeline to 10 EngineersProductivity CurveBreakeven Point
Gradual scaling15-20 monthsSmooth integration, each hire productive in 2 weeksMonth 15
Rapid scaling3 monthsGrowing pains months 2-4, full velocity by month 4Month 4

Rapid scaling reaches breakeven at month 4 with 10 people who have 4 months of shared experience. Gradual scaling reaches breakeven at month 15 with 6-7 people at varying tenure. Use rapid scaling for time-sensitive competitive threats and market windows. Use gradual scaling when 18-month timelines are acceptable.

When Should Other Startups Attempt Rapid Team Scaling?

Not every company is ready for a 90-day sprint. Four prerequisites determine whether the approach will succeed.

What Organizational Prerequisites Are Necessary?

Four prerequisites are required before starting a rapid scaling sprint: sufficient capital to fund 10+ salaries for at least 12 months; executive commitment to pausing feature development for 8-12 weeks; a defined product roadmap and prioritized feature backlog before hiring begins; and for FinTech and HealthTech firms, secure delivery centers with Zero Trust Network Access, SOC2 certification, HIPAA-compatible controls, and employment contracts governed by US law with work-for-hire clauses.

See our backend developer hiring guide for role-specific vetting standards relevant to compliance-heavy sectors.

What Signals Indicate Readiness for Rapid Engineering Hiring?

Six signals indicate a company is ready for a 90-day sprint: technical capacity is the primary growth constraint; the contractor model has reached its limits; competitive position is eroding; growth-stage funding carries aggressive milestones; capital efficiency is needed to extend runway by 60-70%; and the CTO can dedicate 60-70% of their time to hiring for 12 weeks.

Companies in the $100M revenue bracket, including those in the InMobi and Rappi ecosystems, demonstrate this model produces durable teams. Rapid team scaling rewards companies that tolerate temporary disorder in exchange for compressed timelines and the capacity to achieve market leadership.

Frequently Asked Questions About Rapid Engineering Team Scaling

These are the most common questions US tech leaders ask about scaling engineering teams via LATAM nearshoring.

How Long Does It Take to Hire 10 LATAM Engineers?

It takes 16-28 days per individual hire through a specialized LATAM talent partner. A 10-person team assembles in 90 days by running parallel candidate pipelines. This compresses what would take 15-20 months through gradual domestic hiring.

What If a Developer Does Not Work Out?

Use 90-day probationary periods with explicit milestones at weeks one, six, and twelve. Most quality nearshore partners include a replacement guarantee. Our case produced one performance-related separation out of 10 hires, within the expected range for any hiring sprint.

Do I Need a Local Legal Entity to Hire in Mexico, Brazil, Argentina, or Colombia?

No. The Employer of Record (EOR) model handles payroll, benefits, and compliance without a local entity. Setup takes hours, not six months. The EOR cost is 8-12% of salary.

How Do I Pay LATAM Developers?

You receive a single USD invoice through the EOR. The EOR calculates and remits local taxes, social security, and mandated bonuses such as the 13th month salary required in Colombia and Brazil.

What Is the Difference Between Nearshore and Offshore Hiring?

Nearshore refers to countries within 0-3 hours of US time zones: Mexico, Colombia, Argentina, and Brazil. Offshore refers to countries 8-12+ hours away in Asia. The timezone gap in offshore models creates a 21-day average delay in project milestones. Nearshore teams provide 4-8 hours of daily synchronous overlap with US teams.

How Does Compensation Compare to US Rates?

LATAM senior engineers cost $65-$95 per hour versus $285,000-$375,000 total annual compensation in San Francisco. Over 24 months, a 10-person LATAM team costs 60-68% less than a comparable US tech hub team.

Ready to Build Your LATAM Engineering Team?

Nearshore Business Solutions sources and vets developers from Mexico City, Guadalajara, Bogota, Medellin, Sao Paulo, and Buenos Aires. We screen for technical skills, English fluency, and US work style fit. Acceptance rate: 16%.

Every placement includes a 90-day replacement guarantee. You receive pre-vetted candidates in 2-4 weeks.

Get a free consultation to discuss your hiring needs and receive a custom quote.

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