.spark

Tech Stack

Next.jsTypeScriptClaude APIAWS Auto ScalingEC2DockerNginxPostgreSQLPrismaTailwind CSS

Description

AnAI-poweredplatformthatbuildsfull-stackapplicationsfromasingleprompt.Usersdescribetheapptheywant,andSparkgeneratesthecode,spinsupadedicatedcloudenvironmenttorunit,andservesalivepreviewinseconds.Eachprojectcomeswithabrowser-basedVSCodeeditorandafollow-upchattokeepiterating,givinganyonetheabilitytogofromideatorunningsoftwarewithoutwritingalineofcode.

Key Contributions & Role

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Architectedanend-to-endAIcode-generationpipelinethatstreamsoutputfromClaudeandprovisionsadedicated,isolatedcloudsandboxperuserforrunningandpreviewinggeneratedapps.
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BuiltacustomstreamingparserthatreadstheLLM'stokenstreaminrealtime,detectingfileandshell-commandboundariesacrossfragmentedchunkstowritecodetodiskmid-generation.
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DesignedastatefulworkerorchestratoroveranAWSAutoScalingGroup,managingalivefleetofEC2machineswithwarm-poolpre-provisioningtoeliminatecold-startdelaysfromtheuserrequestpath.
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Implementedaservice-levelhealth-checkgatethatverifieseachmachineisfullyreadybeforeassignment,plusTTL-basedcleanuptoreclaimidleinstancesandcapinfrastructurecost.
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Engineeredwildcard-SSLsubdomainroutingthroughNginxandaNode.jsproxylayer,mappingeachworkertoitsownlivepreviewandeditorURL.
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BuiltasecureRESTAPIwithJWTauthentication,bcrypthashing,andZodvalidationonPostgreSQL,Prisma,andNeonDB,withaNext.jsfrontendfeaturingprotectedroutes,arecursivefileexplorer,andreal-timestreamingofgenerationprogress.