{"schemaVersion":"jobsearcher.job.v1","id":"d650eaec0da1b9ad456c1145","url":"https://jobsearcher.com/jobs/d650eaec0da1b9ad456c1145","canonicalUrl":"https://jobsearcher.com/jobs/d650eaec0da1b9ad456c1145","title":"Software Developer III","description":"Job Type: Full-Time\nSummary\nThe Software Developer III is a key technical contributor who leads the architectural design and technical decision-making for the entire system. You will lead structural improvements with long-term maintainability in mind and transform business requirements into sophisticated technical strategies. Based on excellent communication skills, you will lead the team’s collaborative culture and provide mentoring to support the growth of junior developers. You will exercise problem-solving leadership during complex failure situations to enhance the organization’s technical credibility.\nJob Duties\nArchitect and operate Python & FastAPI-based automation systems\nDesign and stabilize data pipelines integrating Amazon SP-API and internal systems\nImprove and guide best practices for Selenium-based automation workflows\nDesign and operate AWS-based internal software systems\nImprove frontend architecture using React, Next.js, TypeScript, and Tailwind CSS\nDefine and maintain Vercel-based frontend deployment strategies\nDesign and optimize PostgreSQL database structures\nImprove system performance, scalability, and reliability\nEstablish code quality and review standards\nMentor Software Developer I and II engineers\nAct as a technical leader during incidents and critical issues\nSkills\nHigh proficiency in Python, FastAPI, and JavaScript/TypeScript\nExperience in designing and operating complex systems\nExperience in REST API and automation architecture design\nExperience in AWS-based service design and operation\nExperience in PostgreSQL and relational DB design and optimization\nUnderstanding of large-scale front-end structures using React and Next.js\nUnderstanding of CI/CD and deployment environments\nAbility to explain and justify technical trade-offs; strong mentoring and technical leadership skills\nRequirements\n6+ years of professional experience in a relevant field\nKorean/English bilingual proficiency with intermediate speaking and writing skills, and advanced understanding skills\nExperience taking ownership of system-level units in a production environment\nProven track record of structurally solving complex technical problems\nExperience in designing for service stability and long-term maintainability\nStrong communication skills that earn the trust of the team and organization\nWork Hours\n9 AM – 6 PM\nMonday – Friday\nBenefits\nSalary Range: $120K-$140K\nSemi-annual bonus\nHealth Insurance: 100% employer contribution (Medical, Dental, Vision, and Life)\n401(k): 100% employer match up to 6%\nMonthly Team Budget\nPaid Holidays\nPaid Vacation (PTO): up to 10 days\nPaid Sick Leave: 10 days\nFamily Event PTO & Monetary Compensation\nSpigen Day: Half days on Fridays\nLunch provided\nEtc.","company":"Spigen","rawCompany":"spigen","city":"Santa Ana","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-08-03T13:02:34.168Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Developer III","description":"Job Type: Full-Time\nSummary\nThe Software Developer III is a key technical contributor who leads the architectural design and technical decision-making for the entire system. You will lead structural improvements with long-term maintainability in mind and transform business requirements into sophisticated technical strategies. Based on excellent communication skills, you will lead the team’s collaborative culture and provide mentoring to support the growth of junior developers. You will exercise problem-solving leadership during complex failure situations to enhance the organization’s technical credibility.\nJob Duties\nArchitect and operate Python & FastAPI-based automation systems\nDesign and stabilize data pipelines integrating Amazon SP-API and internal systems\nImprove and guide best practices for Selenium-based automation workflows\nDesign and operate AWS-based internal software systems\nImprove frontend architecture using React, Next.js, TypeScript, and Tailwind CSS\nDefine and maintain Vercel-based frontend deployment strategies\nDesign and optimize PostgreSQL database structures\nImprove system performance, scalability, and reliability\nEstablish code quality and review standards\nMentor Software Developer I and II engineers\nAct as a technical leader during incidents and critical issues\nSkills\nHigh proficiency in Python, FastAPI, and JavaScript/TypeScript\nExperience in designing and operating complex systems\nExperience in REST API and automation architecture design\nExperience in AWS-based service design and operation\nExperience in PostgreSQL and relational DB design and optimization\nUnderstanding of large-scale front-end structures using React and Next.js\nUnderstanding of CI/CD and deployment environments\nAbility to explain and justify technical trade-offs; strong mentoring and technical leadership skills\nRequirements\n6+ years of professional experience in a relevant field\nKorean/English bilingual proficiency with intermediate speaking and writing skills, and advanced understanding skills\nExperience taking ownership of system-level units in a production environment\nProven track record of structurally solving complex technical problems\nExperience in designing for service stability and long-term maintainability\nStrong communication skills that earn the trust of the team and organization\nWork Hours\n9 AM – 6 PM\nMonday – Friday\nBenefits\nSalary Range: $120K-$140K\nSemi-annual bonus\nHealth Insurance: 100% employer contribution (Medical, Dental, Vision, and Life)\n401(k): 100% employer match up to 6%\nMonthly Team Budget\nPaid Holidays\nPaid Vacation (PTO): up to 10 days\nPaid Sick Leave: 10 days\nFamily Event PTO & Monetary Compensation\nSpigen Day: Half days on Fridays\nLunch provided\nEtc.","datePosted":"2026-08-03T13:02:34.168Z","dateModified":"2026-08-03T13:02:34.168Z","hiringOrganization":{"@type":"Organization","name":"Spigen","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Santa Ana","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"d650eaec0da1b9ad456c1145"},"url":"https://jobsearcher.com/jobs/d650eaec0da1b9ad456c1145"}}