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CharCentric

Senior Frontend Software Engineer

CharCentric, Poland, New York, United States

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CharCentricis an ambitious technology firm that offers technology consulting and engineering services to emerging and established businesses worldwide. We pride ourselves on delivering innovative solutions, maintaining a high standard of quality, and fostering a culture of knowledge sharing and collaboration. We are seeking a

Frontend Developer

to join our team and work on exciting projects, including an AI Data Platform. While your first contribution will be on this platform, CharCentric offers diverse consultancy opportunities that span various industries and technologies. If you’re passionate about backend development, thrive in a collaborative environment, and have a can-do attitude, we’d love to hear from you. Tasks

The scope of work involves: Design, develop, and maintain robust

frontend applications

using

Next.js and React.js , ensuring scalability and performance. Build responsive, accessible, and pixel-perfect UIs aligned with modern design principles. Integrate

AI-powered and API-driven

features seamlessly into frontend workflows. Optimize rendering performance, bundle size, caching, and client-side data fetching. Conduct performance audits and stress tests, coordinating with the backend and infrastructure teams to ensure smooth scalability. Write and maintain detailed technical documentation, including architecture diagrams, UI/UX specifications, and component guidelines. Implement designs individually or collaboratively with designers and backend engineers. Develop

unit, integration, and end-to-end (E2E)

tests for frontend components and flows. Collaborate closely with cross-functional teams, attending design and development meetings. Debug and resolve production issues, providing technical support when needed. Requirements

Must-Have Skills Must be located within the

GMT +2 to GMT +9

time zones. 5–12 years of experience

in frontend development. Mastery of Next.js and React.js

— deep understanding of SSR, SSG, ISR, hydration, server/client components, data fetching strategies and others. Expertise in

TypeScript , modern

JavaScript (ES6+) , and

React Hooks . Strong understanding of

frontend architecture ,

state management

(e.g., Redux Toolkit, Zustand, Recoil), component-driven development. Experience in implementing atomic based design systems. Experience with

frontend testing frameworks

(e.g., Jest, React Testing Library, Cypress, Playwright). Strong grasp of

design systems ,

UI performance optimization , and

responsive design . Experience with

API integration

(REST, GraphQL) and

authentication flows

(JWT, OAuth2). Proficient in

Git version control

and collaborative workflows (GitHub / GitLab). Solid understanding of

CI/CD pipelines

for frontend deployments. Familiarity with

analytics, tracking, and A/B testing

integrations. Experience in

real-time UI

(WebSockets, WebRTC, or GraphQL subscriptions). Knowledge of

internationalization (i18n)

and accessibility best practices. CharCentric takes pride in its clients and does its best to ensure all projects not only be completed successfully but also in style. Hence, self-driven engineers with a can-do attitude are critical to our success. Nice-to-Have Skills Full-stack development experience Experience in Python Our ideal candidate is an engineer who can demonstrate: Excellent communication and problem-solving skills. Strong ownership and the ability to lead or work within a team. Fluency in English (written and spoken). Fast learner and highly adaptable to new technologies. Passion for writing clean, maintainable, and high-quality code. Ability to design and architect frontend systems that scale. Great client-facing communication and professionalism. Minimum Qualifications: A bachelor’s degree in Information Technology, Computer Science, Software Engineering, Computer Engineering or other relevant disciplines. Our Hiring Process We believe in hiring thoughtfully and transparently. Here’s what you can expect when applying to CharCentric: Application Review:

Our team carefully reviews your application to understand your background and potential fit. Online Home Quiz:

A short, fun quiz to help us gauge your approach to problem-solving. Virtual Meet:

An initial conversation to get to know each other better. Take-Home Assessment:

A practical exercise to see your skills in action. Problem-Solving Exercise:

A collaborative session focused on testing your analytical and problem solving skills. Final Interview:

A concluding discussion with leadership to align on goals, values, and next steps. Join Us At

CharCentric , we’re driven by curiosity, excellence, and impact. You’ll be joining a team that builds intelligent systems, solves complex problems, and crafts technology that moves industries forward. If you’re passionate about creating meaningful change through innovation, we’d love to meet you.

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