\u003Cbr />\u003C/p>\u003Cp style=\"min-height:1.5em\">\u003Cem>We will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of the State of California Fair Chance Initiative for Hiring.\u003C/em>\u003C/p>","https://jobs.ashbyhq.com/lightspark/9be55ab4-f8c9-469c-83c5-a9f858abfbdf",{"id":59,"name":60,"urlSafeSlug":60,"logo":61},[90,91],{"city":22,"region":23,"country":24},{"city":18,"region":18,"country":92},"Remote","2025-09-04T07:17:33.772Z",2,"Candidates should have 10+ years of engineering experience with significant contributions to Bitcoin, Ethereum, L2s, or the stablecoin ecosystem. Deep experience building adversarial distributed systems and protocol-level infrastructure is required, along with strong systems thinking and a proven ability to analyze complex systems. Proficiency across multiple languages and frameworks, including Go, Rust, C++, Python, and Kotlin, is necessary, as is hands-on experience with modern infrastructure tooling. A CS degree or equivalent is welcome but not required; deep crypto skills and proven contributions are valued.","The Principal Engineer will design, build, and scale distributed backend services powering Spark, owning system architecture for highly available, low-latency services processing real-time global transactions. Responsibilities include extending and enhancing protocol capabilities for new assets and payment flows, writing high-quality, production-grade code across multiple domains, and analyzing complex distributed behaviors in adversarial environments to design resilient systems. The role involves working directly with leadership to influence long-term protocol direction and technical strategy, mentoring engineers, and adapting quickly to new challenges such as designing new systems, debugging complex distributed behaviors, or scaling production infrastructure.",{"employment":98,"compensation":103,"experience":107,"visaSponsorship":113,"location":114,"skills":115,"industries":127},{"type":99},{"id":100,"name":101,"description":102},"7b45c8cf-5aad-4473-9b42-e655134195c8","Full Time","Commit to a standard 40-hour workweek, usually with full benefits.",{"minAnnualSalary":104,"maxAnnualSalary":105,"currency":106,"details":18},280000,310000,"USD",{"experienceLevels":108},[109],{"id":110,"name":111,"description":112},"de6fc08d-b7f4-4514-8560-7f69a3611e1e","Expert & Leadership (9+ years)","Leverage deep expertise and lead strategic initiatives.",{"type":11},{"type":11},[116,117,118,119,120,121,122,123,124,125,126],"Bitcoin","Ethereum","Layer 2 protocols","Distributed systems","Backend services","System architecture","Low-latency services","Real-time transactions","Protocol development","Scalability","Decentralized payments",[128,129,132],{"id":55,"name":54},{"id":130,"name":131},"00000000-0000-0000-0000-000000000000","Cryptocurrency",{"id":130,"name":133},"Blockchain",["Reactive",135],{"$ssite-config":136},{"env":137,"name":138,"url":139},"production","nuxt-app","https://jobo.world",["Set"],["ShallowReactive",142],{"company-Lightspark":-1,"company-jobs-c7651812-26da-4135-822b-45448b7354ac-carousel":-1},"/company/Lightspark",{}]