Explore 3 javascript typescript engineer react jobs from 3 hiring companies in Marseilles, IL, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Javascript Typescript Engineer React

Ottawa

Morris

Streator

Yorkville

Aurora

Joliet

Shorewood

Oswego

Plainfield

La Salle

Naperville

Crest Hill

Romeoville

Bolingbrook

Lockport

DeKalb

New Lenox

Seneca

Batavia

Javascript Typescript Engineer React Jobs

1-800-FLOWERS.COM

Ecolab

International Motors

Onsite

<div><p>We are seeking a technically strong and hands-on Principal Software Engineer with deep frontend expertise to join our team and help drive the design and development of a modern, enterprise-scale user interface commercial products. This role will play a critical part in shaping frontend architecture, defining engineering standards, and leading teams delivering complex, multi-application UI experiences in a highly collaborative environment.</p><p></p><p><b>What you will do:</b></p><p></p><ul><li>Lead frontend engineering efforts for enterprise-scale digital commercial applications, providing hands-on technical leadership and architectural guidance.</li><li>Define and drive modern frontend architecture, including micro-frontend approaches and shared UI composition patterns.</li><li>Establish and enforce frontend engineering standards, coding practices, and architectural patterns that support scalability, performance, and long-term maintainability.</li><li>Provide technical and procedural direction across the full software development lifecycle, from design through implementation, testing, and support.</li><li>Partner with backend, platform, security, and UX teams to deliver cohesive, high-quality user experiences.</li><li>Own frontend build, packaging, and deployment strategies, including integration with CI/CD pipelines.</li><li>Define and champion testing strategies across unit, integration, and end-to-end levels, driving quality through automation.</li><li>Troubleshoot and resolve complex UI issues spanning framework boundaries, micro-frontend orchestration, performance, and runtime behavior.</li><li>Participate in architecture reviews, design reviews, and code reviews to ensure adherence to standards and best practices.</li><li>Mentor and coach engineers, fostering technical growth, adoption of shared standards, and reuse of common components and patterns.</li><li>Influence technical and business decisions by collaborating with engineering leadership and executive stakeholders on strategic initiatives.</li></ul><p></p><p><b>Minimum Qualifications</b></p><p></p><ul><li>Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent combination of education and significant professional experience.</li><li>12 years of software engineering experience, with deep specialization in frontend development.</li><li>5 years of  hands-on expertise with modern frontend frameworks such as React or Angular, and strong command of TypeScript/JavaScript (ES6&#43;), HTML, and CSS architecture.</li><li>Strong experience designing and supporting micro-frontend architectures, including orchestration and module federation concepts.</li><li> Demonstrated expertise in frontend testing frameworks and strategies</li><li>Experience with frontend build tooling and bundlers and integration into CI/CD pipelines.</li><li>Ability to operate independently in complex environments, leading technical initiatives with minimal supervision.</li><li>Excellent communication skills, with the ability to interface effectively with engineers, product partners, and executive leadership.</li></ul><p></p><p><b>Preferred Qualifications</b></p><p></p><ul><li>Master’s degree in Computer Science, Engineering, or a related field</li><li>Experience working in large-scale enterprise environments with multiple frontend applications and shared platform concerns.</li><li>Familiarity with <b>enterprise authentication patterns</b>, including SSO integration, token management, and secure API consumption.</li><li> Experience with frontend state management solutions</li><li>Exposure to performance optimization and observability practices, and frontend monitoring tools.</li><li>Proven track record of mentoring engineers and driving adoption of shared standards, design systems, and reusable UI components.</li><li>Recognition as a technical leader or subject matter expert within and beyond the immediate team or organization.</li></ul></div><p></p><p></p><p></p><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><p><b>Annual or Hourly Compensation Range</b></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>The base salary range for this position is $153,900.00 - $230,800.00. This position is eligible for annual bonus pay based on performance, per plan terms. Many factors are taken into consideration when determining compensation, such as experience, education, training, geography, etc. We comply with all minimum wage and overtime laws.<p></p><div><p><b><span>Benefits</span></b><span> </span></p></div><p><span><span>Ecolab strives to provide comprehensive and market-competitive benefits to meet the needs of our associates and their families.<span> <a href="https://jobs.ecolab.com/working-here/" target="_blank">Click here</a> </span></span></span><span><span>to see our benefits.</span> </span></p><p><i><span>If you are viewing this posting on a site other than our Ecolab Career website, view our benefits at <span><span><span>jobs.ecolab.com/working-here.</span></span></span></span></i><span> </span></p><p></p><div><p><b>Potential Customer Requirements Notice</b></p><p>To meet customer requirements and comply with local or state regulations, applicants for certain customer-facing roles may need to:</p><p>- Undergo additional background screens and/or drug/alcohol testing for customer credentialing.</p><p>- Be fully vaccinated for COVID-19, including a booster if eligible, unless a religious or medical accommodation is requested by the applicant and approved by Ecolab.</p><p><span> </span></p></div><div><p><b><span>Americans with Disabilities Act (ADA)</span></b><span> </span></p><p><span><span>Ecolab will provide reasonable accommodation (such as a qualified sign language interpreter or other personal </span><span>assistance</span><span>) with our application process upon request as </span><span>required</span><span> to </span><span>comply with</span><span> applicable laws. If you have a disability and require accommodation </span><span>assistance</span><span> in this application process, please visit the Recruiting Support link in the footer of each page of our career website. </span></span><span> </span></p></div>

Principal Software Engineer

Lead frontend engineering for enterprise-scale UI; 12+ years frontend experience; React/Angular; micro-frontend architectures; CI/CD; mentoring.

<p><span>PersonalizationMall is growing! We are currently seeking a <strong>Front-End Developer</strong> with a minimum of 2 years of experience. We are looking for a creative problem solver and strategic thinker with a passion for delivering pixel-perfect solutions.</span></p>
<p><span>The ideal candidate will have expert knowledge of HTML, CSS, and JavaScript. Our current front-end stack includes LESS/SASS and jQuery/jQueryUI within a Visual Studio .NET environment. The right candidate should also be comfortable writing Vanilla JavaScript and TypeScript. Responsive/mobile design experience, with or without a framework, is required. A bachelor’s degree from an accredited university is strongly preferred but may be substituted for equivalent experience.</span></p>
<hr />
<h1><span>Responsibilities</span></h1>
<ul>
<li><span>Craft user-centric web pages and components from prototype to customer-facing pages using front-end best practices</span></li>
<li><span>Enhance application performance for optimal speed and adapt designs for mobile platforms</span></li>
<li><span>Create high-quality mockups and prototypes that meet design specifications</span></li>
<li><span>Collaborate with back-end developers and web designers to refine website functionality</span></li>
<li><span>Gather and analyze user feedback to guide the development of solutions</span></li>
<li><span>Support back-end developers by assisting with code development and problem-solving</span></li>
<li><span>Stay updated with current trends in web development</span></li>
</ul>

Front-End Developer

Minimum 2 years frontend development; strong HTML/CSS/JS; experience with LESS/SASS, jQuery; vanilla JS and TypeScript; responsive/mobile design; bachelor’s degree preferred.

<br><b class="jdheading"><u>Position Overview</u></b><br><br><p style="margin: 0px;">As the Digital Technology Lead, you are the technical architect and primary delivery lead for our customer-facing digital brand. You will oversee the development of our high-performance, Headless UI, ensuring it remains lightning-fast, modular, and perfectly integrated with our commerce backbone.</p><p style="margin: 0px;"> </p><p style="margin: 0px;">You are a "Product-Minded Engineer" who balances high-level technical oversight with active delivery. Your mission is to maintain elite digital standards while mentoring a team of developers to deliver a world-class B2B shopping experience.</p> <br><b class="jdheading"><u>Responsibilities</u></b><br><br><p style="margin: 0px;">1. Digital Excellence & Code Governance</p><ul><li>Experience Guardian: Lead the technical execution for the Storefront POD, performing rigorous code reviews to ensure all work meets internal benchmarks for security, performance, and scalability.</li><li>Standards Setting: Along with other UX engineers and enterprise design systems, help establish and maintain modern frontend engineering standards, including component-based architecture, TypeScript patterns, and high-performance CSS strategies.</li><li>Architectural Alignment: Partner with the eCommerce Digital Solutions & Platform Architect to ensure the Storefront UI consumes APIs efficiently without compromising site speed.</li></ul><p style="margin: 0px;">2. Experience Engineering & Performance</p><ul><li>Headless Innovation: Drive the development of our custom frontend (React/Next.js), focusing on Server-Side Rendering (SSR) to ensure "Instant-on" performance for our dealers.</li><li>Integration Strategy: Oversee the integration of third-party digital tools (Analytics, Search, Personalization) while maintaining elite "Core Web Vitals."</li><li>UX Modernization: Lead the technical refactoring of legacy components into modern, reusable UI elements that drive conversion and minimize technical debt.</li></ul><p style="margin: 0px;">3. AI-Augmented Development (10x Efficiency)</p><ul><li>AI Productivity Mastery: Advanced proficiency in using AI-assisted development tools (e.g., GitHub Copilot, Cursor, or Replit Agent) to accelerate the software development lifecycle (SDLC) and automate repetitive coding tasks.</li><li>Automated Quality Auditing: Leverage AI to perform automated security scans, unit test generation, and performance profiling of code submitted by the broader team.</li><li>Rapid Digital Prototyping: Utilize AI agents to quickly stand up "Proof of Concept" features (e.g., new dealer dashboard widgets) for stakeholder review and testing.</li></ul> <br><b class="jdheading"><u>Minimum Requirements</u></b><br><br><ul><li>Bachelor's degree and at least 9 years of software engineer experience</li><li>At least 2 years of lead experience</li></ul><p style="margin: 0px;">OR</p><ul><li>Master's degree and at least 5 years of software engineer experience</li><li>At least 2 years of lead experience</li></ul><p style="margin: 0px;">OR</p><ul><li>At least 12 years of software engineer experience</li><li>At least 2 years of lead experience</li></ul> <br><b class="jdheading"><u>Additional Requirements</u></b><br><br><ul><li>Qualified candidates, excluding current employees, must be legally authorized on an unrestricted basis (US Citizen, Legal Permanent Resident, Refugee or Asylee) to be employed in the United States. We do not anticipate providing employment related work sponsorship for this position (e.g., H-1B status)</li></ul> <br><b class="jdheading"><u>Desired Skills</u></b><br><br><ul><li>7+ years of professional web development experience, with at least 3 years in a Lead or Senior capacity within a high-growth Digital Product environment.</li><li>Proven track record of building and maintaining decoupled/headless storefronts (e.g., Next.js, Nuxt.js, or Remix).</li><li>Experience managing or mentoring developers in an Agile/Scrum environment, with a focused "You Build It, You Run It" mentality.</li><li>Expert-level proficiency in JavaScript/TypeScript, React, and modern styling frameworks (Tailwind, CSS-in-JS).</li><li>Deep experience consuming RESTful or GraphQL APIs within a commerce context.</li><li>Advanced ability to use AI-driven coding assistants to refactor code, generate documentation, and optimize logic at 10x speed.</li><li>Experience with automated testing frameworks (Jest, Cypress, Playwright) to ensure zero-regression deployments.</li><li>Understanding of complex digital requirements like bulk-upload carts, multi-level navigation, and tiered pricing displays.</li><li>Exceptional ability to explain complex technical trade-offs to the Product Owner and non-technical stakeholders in a "Business-First" language.</li></ul> <br><b class="jdheading"><u>Benefits and Compensation</u></b><br><br><p style="margin: 0px;">This position offers competitive market-based compensation, along with a comprehensive benefits package designed to support employee wellbeing. You can learn more about the benefits offered for this position by visiting <a href="https://careers.international.com/#benefits" target="_blank" rel="noopener">https://careers.international.com/#benefits</a>.<br /><br />The expected salary offered for this position will fall within the stated range, with the final offer based on the candidates' applicable skills, knowledge, and experience.</p> <br><b class="jdheading"><u>Company Overview</u></b><br><br><p style="margin: 0px;"><strong>About TRATON</strong><br />With its brands Scania, MAN, International, and Volkswagen Truck & Bus, TRATON SE is the parent and holding company of the <a href="https://traton.com/" target="_blank" rel="noopener">TRATON GROUP</a> and one of the world’s leading commercial vehicle manufacturers. The Group’s product portfolio comprises trucks, buses, and light-duty commercial vehicles. “Transforming Transportation Together. For a sustainable world.”: this intention underlines the Company’s ambition to have a lasting and sustainable impact on the commercial vehicle business and on the Group’s commercial growth.</p><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>About International</strong><br />From a one-man company built on the world-changing invention of the McCormick reaper in 1831, to the 15,000-person-strong company we are today, few companies can lay claim to a history like International. Based in Lisle, Illinois, International Motors, LLC* creates solutions that deliver greater uptime and productivity to our customers throughout the full operation of our commercial vehicles. We build International® trucks and engines and IC Bus® school and commercial buses that are as tough and as smart as the people who drive them. We also develop Fleetrite® aftermarket parts. In everything we do, our vision is to accelerate the impact of sustainable mobility to create the cleaner, safer world we all deserve. As of 2021, we joined Scania, MAN and Volkswagen Truck & Bus in TRATON GROUP, a global champion of the truck and transport services industry. To learn more, visit <a href="https://www.international.com/" target="_blank" rel="noopener">International.com</a>.</p><p style="margin: 0px;"> </p><p style="margin: 0px;">*International Motors, LLC is d/b/a International Motors USA in Illinois, Missouri, New Jersey, Ohio, Texas, and Utah.</p><p style="margin: 0px;"> </p> <br><b class="jdheading"><u>EEO Statement</u></b><br><br><p style="margin: 0px;">We are an Equal Opportunity Employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.</p><p style="margin: 0px;"><br />If you are a qualified individual with a disability and require a reasonable accommodation to access the online application system or participate in the interview process due to your disability, please email <a href="mailto:hub@international.com?subject=Application%20Accomodation Request" target="_blank" rel="noopener">HUB@International.com</a> to request assistance. Kindly specify Job Requisition Number / Job Title and Location in response. Otherwise, your request may not be considered.</p>

Digital Technology Lead – Storefront & UX

Digital Technology Lead

Bachelor's or Master's in related field with 9+ years software engineering; 2+ years lead experience; alternative path with 12+ years experience and lead experience.

Javascript Typescript Engineer React Jobs in Marseilles, IL, US | HiringCafe: every job on earth

Javascript Typescript Engineer React Jobs in Marseilles, IL, US

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