SparkleApplication Engine

Every application,
tailored to convert

Your resume stays exactly as you wrote it. What we optimize is everything around it—the cover letter, the targeting, the keywords, the timing.

The Problem

Generic applications get ignored

Sending the same cover letter to every company doesn't work. Recruiters can spot a template from a mile away. Mass-applying without strategy is just noise.

X
"Dear Hiring Manager" gets deleted instantly
X
Copy-paste cover letters show zero effort
X
Applying to mismatched roles wastes everyone's time
Generic ApplicationIgnored

Cover Letter Preview

"Dear Hiring Manager, I am writing to express my interest in the Software Engineer position. I believe my skills and experience make me a strong candidate..."

Recruiter time spent: 3 seconds
Our Approach

Three layers of optimization

Every application goes through our engine before it reaches a recruiter.

Target

Smart Targeting

We match your profile to roles where you're actually competitive. No spray-and-pray. Every application has a real chance.

Role match94%
Seniority fitExact
Tech stackAligned
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Unique Cover Letters

Every application gets a cover letter written specifically for that company and role. References their work. Speaks their language.

"Your recent Series B and expansion into enterprise caught my attention. At [Previous], I scaled similar infrastructure..."

Key

Keyword Alignment

We analyze each job description and weave the right keywords into your cover letter—naturally, not stuffed.

distributed systemsAPI designTypeScriptteam lead
Cover Letters

200 applications means 200 unique letters

No templates. No mail merge. Every cover letter is written from scratch for that specific company. We research their recent news, understand their tech stack, and connect your experience to what they're building.

  • References company-specific projects and announcements
  • Maps your experience directly to their job requirements
  • Written to sound like you, not a robot
  • Human-reviewed before every submission

Stripe

Senior Backend Engineer

"I've been following Stripe's work on the Payment Intents API migration—the backwards compatibility approach is exactly the kind of careful infrastructure work I did at [Company], where I led our payment system refactor while maintaining 99.99% uptime for 2M daily transactions..."

payment infrastructurebackwards compatibilityhigh availability
Unique to this role

The difference is obvious

Recruiters can tell immediately. So can their response rates.

Self-AppliedGeneric

"Dear Hiring Manager, I am excited to apply for this role. I have X years of experience and believe I would be a great fit..."

Response rate2-3%
Time to write5 min each
Recruiter impressionLow effort
Lumo ApplyTailored

"Your work on [specific project] caught my attention. At [Company], I built something similar that [specific metric]..."

Response rate15-20%
Time to writeWe handle it
Recruiter impressionDid their homework
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Your resume stays untouched

We don't modify, reformat, or "optimize" your resume. You've already crafted it to represent your experience. We submit it exactly as you provided it—our optimization happens in the cover letter and targeting, not your resume.

Your formatting, your words, your resume

Stop sending generic applications

Every application without a tailored cover letter is a missed opportunity. Let us handle the personalization at scale.