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Junior JavaScript Developer

Kijona Solutions Inc.
Chicago, IL Full Time
POSTED ON 12/15/2025 CLOSED ON 2/15/2026

What are the responsibilities and job description for the Junior JavaScript Developer position at Kijona Solutions Inc.?

About UsKijona is an energy-technology company pushing the boundaries of solid-state battery innovation. Since 2020, we’ve grown rapidly, achieving major breakthroughs in solid electrolytes, securing patents, and partnering with leading aerospace and automotive manufacturers. As we expand our digital and software capabilities, we’re looking for a Junior JavaScript Developer to help build high-quality internal tools, dashboards, web services, and customer-facing applications.Role OverviewAs a Junior JavaScript Developer, you’ll work with our engineering and data teams to develop clean, reliable, and scalable web applications. This role is ideal for someone early in their career who enjoys learning new technologies, solving problems, and contributing to impactful software used by scientists, analysts, and product teams.Key ResponsibilitiesDevelop and maintain front-end features using JavaScript, React, Next.js, and Tailwind CSSBuild and improve reusable UI components using shadcn/uiCollaborate with back-end developers to integrate APIs and servicesAssist in building server-side logic with Node.jsWork with MySQL databases—writing queries, handling schema updates, and supporting data access layersImplement and maintain secure authentication and authorization flowsHelp optimize performance, accessibility, and overall UXParticipate in code reviews, documentation, and team discussionsTroubleshoot bugs and contribute to improving development workflowsRequired SkillsStrong foundation in JavaScriptExperience with React and Next.jsFamiliarity with Node.jsUnderstanding of Tailwind CSSExposure to shadcn/ui or component-driven developmentBasic database knowledge (preferably MySQL)Understanding of authentication concepts (sessions, tokens, etc.)Bonus / Nice-to-HaveTypeScript experienceAPI design and REST/GraphQL basicsFamiliarity with ORMs (Prisma, Sequelize, etc.)Knowledge of other full-stack or JS ecosystem toolsUnderstanding of deployment workflows (Vercel, Docker, CI/CD)Interest in building internal engineering tools or data dashboardsWhat We OfferOpportunity to contribute to software supporting cutting-edge energy technologyMentorship from experienced full-stack developersModern tech stack and room to experiment with new toolsClear growth paths into mid-level engineering rolesA collaborative, forward-thinking environmentCompetitive pay and benefitsCompany DescriptionKijona was established with a vision to revolutionize battery technology through solid-state innovation.

Salary : $68,600 - $89,100

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