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Senior Security Engineer
MosaicDigital
📍 Remote (Poland)
📅 Part-time
📁 Engineering
Posted: 2026-06-10

About the Role

At MosaicDigital, we are reimagining how teams approach engineering. Our remote-first culture lets talented people do their best work without the limits of location. We are looking for a Senior Security Engineer who shares our values and is excited to grow with us.

What You'll Do:
- Design, build, and maintain scalable backend services and APIs
- Write clean, well-tested, and well-documented code
- Lead code reviews and mentor engineers across the team
- Build and maintain CI/CD pipelines and deployment infrastructure
- Collaborate with product and design teams to define technical requirements

What We're Looking For:
- Strong system design and architectural thinking
- Proven track record of delivering complex, high-impact projects
- Excellent communication and stakeholder management skills
- Experience mentoring junior and mid-level team members
- 5+ years of relevant professional experience

What We Offer:
- Company-wide team retreats twice per year
- Annual learning and development budget ($1,500+)
- Unlimited PTO and company-wide recharge days
- Home office setup stipend ($500-$1,000)
- Competitive salary with equity or performance bonuses

To apply, send your resume and a short note about why you are excited about this role. We review every application and respond within 5 business days.

Required Skills

TypeScriptReactTerraformGoJavaSwift

Ready to Apply?

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Salary Range
$140k-$180k
Per year • Remote