UI/UX Developer Job at Astek (Warsaw)

UI/UX Developer Summer Internship

Join STR's Visualization Interactive Experience (VizIX) team and create user exp...

Location

United States , Woburn

Salary:

52000.00 - 79000.00 USD / Year

STR

Expiration Date

Until further notice

Requirements

Enrollment in a BS/BA, MS or PhD degree program in computer science, web development, software engineering, game development, digital media, human-computer interaction, graphic design, or related technical discipline
Strong academic record and interest in interactive technology development
This position requires the ability to obtain a security clearance, for which U.S. citizenship is needed by U.S. Government
Programming/Web development: HTML, CSS, JavaScript, React, Vue, Python, C++, Java
Game development: Unity, Unreal Engine

Job Responsibility

Work as part of a close-knit team with direct mentorship from senior engineers and researchers
Collaborate with researchers, scientists, and engineers across multiple technology domains to create compelling digital experiences
Support projects in various phases of development, from user research and wireframing to interactive prototyping and full-stack implementation, usability testing and iteration, and deployment of production-ready applications across web, mobile, and immersive platforms
Participate in collaborative team sessions including design reviews, code discussions, and brainstorming meetings

What we offer

Competitive pay
Free housing near selected STR offices
A vibrant community of 40+ summer interns
Weekly tech talks, code reviews, and brainstorming sessions on real-world challenges

Fulltime

UI/UX Developer

RailsCarma is looking for a passionate UI/UX Developer to join our dynamic devel...

Location

India , Bangalore

Salary:

Not provided

RailsCarma

Expiration Date

Until further notice

Requirements

3+ years experience
Proficient with HTML5 application development with a deep understanding of the key architectural concepts that differentiate HTML5 development from traditional web-based development
Strong knowledge in HTML5, CSS3, JavaScript & Jquery (Dynamic Web Design), Angular JS
Moderate to expert knowledge in AJAX, JSON
Good understanding of web standards, CSS based Responsive design, cross-browser compatibility
Experience developing rich user interfaces for web applications for desktop or mobile devices
Knowledge of user interface design principles and best practices with proven scenario development skills
Experience implementing, testing and performance tuning a web interface

Job Responsibility

Develop web front-end pages providing cutting-edge UI experience to users utilizing JavaScript, HTML5, CSS3, SASS
Develop responsive websites that are highly user interactive with HTML5 and latest design methodologies
Utilize JavaScript libraries like JQuery rich UI experience
Work with Web Designers and business analysts to convert wire frames into responsive HTML/JavaScript templates
Handle customer interaction and communication for the projects

UI/UX Developer

SEQTEK is looking for UI/UX developers that are interested in designing and deve...

Location

United States , Tulsa

Salary:

Not provided

SEQTEK

Expiration Date

Until further notice

Requirements

Mockups
Wireframes
Prototypes
React
Angular
Strong attention to detail
Eagerness to tackle design problems at scale
Knowledgeable about competitors
Understand established design patterns and standards methodologies

Job Responsibility

Design and develop user-focused applications
Collaborate with data, design, product and engineering teams
Be responsible for creating ideas, communications, and interface for the sellers experience
Work across the product development cycle
Solve really big problems with design thinking

Senior UI/UX Developer

We are seeking a highly motivated and skilled Full Stack Developer to join our d...

Location

India , Pune; Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

5+ years of proven experience as a Full Stack Developer
strong proficiency in JavaScript, including experience with ReactJS and NodeJS
experience with NoSQL databases, such as MongoDB
solid understanding of RESTful APIs and microservices architecture
familiarity with cloud native environments (Google Cloud, AWS) and API Gateway technologies is a plus
experience with CI/CD pipelines and DevOps practices is highly desirable
experience with Python and relevant libraries
knowledge of version control systems like Git
familiarity with agile development methodologies
excellent problem-solving and analytical skills

Job Responsibility

design, develop, and implement scalable and maintainable full-stack applications using a variety of technologies (JavaScript, ReactJS, NodeJS, MongoDB or other NoSQL databases, Python, etc.)
collaborate with the Engineering Lead Analyst and other team members to translate business requirements into technical specifications and deliver high-quality solutions
implement and adhere to rigorous quality standards throughout the software development lifecycle, from initial concept to final implementation
write clean, well-documented, and efficient code, adhering to industry best practices
participate actively in agile development processes, including daily stand-ups, sprint planning, and retrospectives
communicate effectively with team members and stakeholders
contribute to a positive and collaborative team environment
stay abreast of emerging technologies and industry best practices
proactively identify opportunities for improvement
demonstrate a commitment to continuous learning and professional development.

What we offer

equal opportunity employer policy
global benefits
commitment to accessibility accommodations for candidates with disabilities

Fulltime

Web and Digital Developer

Web Developer & Digital Experience Specialist to join growing marketing team. Op...

Location

United Kingdom , Brighton

Salary:

40000.00 - 45000.00 GBP / Year

Office Angels

Expiration Date

Until further notice

Requirements

Strong WordPress development and front-end skills
Confident with UI/UX design and digital content creation
Detail-oriented, proactive, and creative
Experience in global or technology-led environments is an advantage
Must be a car driver

Job Responsibility

Manage and enhance global WordPress websites
Develop new features and improve UX and site performance
Design landing pages and email templates
Support internal communications and digital campaign development
Create interactive touchscreen experiences for events
Contribute to interactive event platforms, digital newsletters, and marketing campaigns

Fulltime

Front End Developer

Develop robust and maintainable front-end applications utilizing React, JSX, and...

Location

India , Indore

Salary:

Not provided

Cibirix

Expiration Date

Until further notice

Requirements

5+ years work experience
Develop robust and maintainable front-end applications utilizing React, JSX, and TypeScript
Design and implement application architecture with modular, reusable components
Collaborate effectively with UI/UX designers to transform visual designs into functional user interfaces using modern UI libraries such as Tailwind CSS, MUI, and Chakra UI
Apply CSS-in-JS methodologies using libraries like styled-components, Emotion, or MUI’s styling solution
Monitor and improve Core Web Vitals (LCP, INP/FID, CLS)
Utilize performance analysis tools such as Google Lighthouse, Page Speed Insights, WebPageTest, and the Web Vitals library
Debug and profile components using advanced tools like React Developer Tools (Profiler) and Chrome DevTools
Implement Real User Monitoring (RUM) and analytics using tools and libraries such as web-vitals, Sentry, or SpeedCurve
Optimize JavaScript bundle sizes through strategies like code splitting, lazy loading, tree-shaking, and by leveraging tools like Webpack Bundle Analyzer

Job Responsibility

Develop robust and maintainable front-end applications utilizing React, JSX, and TypeScript, ensuring high code quality and scalability
Design and implement application architecture with modular, reusable components and a well-structured, maintainable codebase
Collaborate effectively with UI/UX designers to transform visual designs into functional user interfaces using modern UI libraries such as Tailwind CSS, MUI, and Chakra UI
Apply CSS-in-JS methodologies using libraries like styled-components, Emotion, or MUI’s styling solution to deliver dynamic and consistent component-level styling
Monitor and improve Core Web Vitals (LCP, INP/FID, CLS) to ensure optimal performance, responsiveness, and stability of the user experience
Utilize performance analysis tools such as Google Lighthouse, Page Speed Insights, WebPageTest, and the Web Vitals library to assess and enhance front-end performance
Debug and profile components using advanced tools like React Developer Tools (Profiler) and Chrome DevTools
Implement Real User Monitoring (RUM) and analytics using tools and libraries such as web-vitals, Sentry, or SpeedCurve to capture real-world performance data and drive continuous improvement
Optimize JavaScript bundle sizes through strategies like code splitting, lazy loading, tree-shaking, and by leveraging tools like Webpack Bundle Analyzer to improve load times and runtime performance
Conduct ongoing testing and debugging to ensure application performance, responsiveness, accessibility, and cross-browser/device compatibility

Fulltime

Senior UI Developer

Senior UI Developer role at Citi, responsible for building high quality, modern,...

Location

Canada , Mississauga

Salary:

120800.00 - 170800.00 USD / Year

Citi

Expiration Date

Until further notice

Requirements

8+ years of hands-on professional experience in front-end/UI development using Angular (preferably Angular 8+)
Proven track record in a leadership role (VP, or similar) in a UI/Frontend development capacity
Experience in Micro Frontend(MFE) architecture building scalable and modular web applications
Strong expertise in JavaScript/TypeScript, HTML5, CSS3, SCSS, and Responsive Design
Experience with RESTful APIs, GraphQL, and integrating front-end components with backend services
Proficiency in UI/UX best practices and building highly interactive web applications
Strong understanding of frontend build tools (Webpack, Angular CLI, npm, yarn, gulp etc.) and version control systems like Git
Multiple years of experience with software engineering best practices (unit testing, automation, design patterns, peer review, etc.)
Clear understanding of building horizontally scalable, highly available, highly resilient, and low latency applications
Bachelor's degree/University degree or equivalent experience

Job Responsibility

Lead and mentor a team of UI/Frontend developers, fostering a culture of collaboration and excellence
Define the UI/UX strategy, architecture, and best practices in alignment with the company's vision
Collaborate with cross-functional teams including Product, Design, and Backend teams to deliver end-to-end solutions
Develop and engineer front end solutions within an Agile software delivery team
Architect, design, and implement scalable and high-performance Angular applications
Drive code reviews, debugging, testing, and performance optimization for all UI layers
Stay updated with the latest Angular versions and trends
Partner continuously with stakeholders, UX and QA
Provide thought leadership and coaching for junior team members
Collaborate with technical leadership to ensure work is aligned to the broad technical strategy

What we offer

Global benefits designed to support well-being, growth and work-life balance
Equal opportunity employer
Reasonable accommodation for persons with disabilities

Fulltime

Staff Software Engineer, UI/UX

In this role, you will support the SWAC in designing and developing professional...

Location

United States , Colorado Springs

Salary:

130000.00 - 155000.00 USD / Year

Bluestaq

Expiration Date

Until further notice

Requirements

Proficiency in front-end development (for example, HTML, CSS, JavaScript, and frameworks such as React, Angular, or Vue)
Experience with UX/UI design tools (Figma, Adobe XD, Sketch, or similar)
Strong understanding of responsive design, accessibility standards, and information architecture
Demonstrated ability to design for usability, clarity, and efficiency
Strong problem-solving skills and attention to detail
Effective communicator, able to present design concepts and decisions to both technical and non-technical audiences
Required Education: 6+ years of software development with a Bachelor of Science degree OR Associate degree with 2 additional years of experience beyond the minimum required may be substituted in lieu of a degree OR a High School Diploma with 4 additional years of experience beyond the minimum required may be substituted in lieu of a degree
Clearance Requirement: This position may require the ability to obtain and maintain a TS/SCI security clearance and, if program requirements dictate, access to Special Access Programs (SAP). To be eligible for a security clearance, U.S. Citizenship is required, and the employee must agree to participate in all government-administered background investigations, including credit checks and polygraph examinations if required by the sponsoring agency. Eligibility for a TS/SCI clearance (and polygraph, if applicable) will be assessed during onboarding or based on programmatic needs

Job Responsibility

Lead the design and aesthetics of organizational websites, digital tools, and data sharing interfaces, establishing a consistent visual identity across platforms
Create intuitive, visually appealing interfaces that users can easily navigate, ensuring a seamless and hassle-free user experience
Conduct research into user needs, preferences, and challenges to inform design decisions
Plan the structure, flow, and information architecture of digital tools and knowledge management platforms
Translate wireframes, mockups, and requirements into functional, responsive code
Collaborate with government leadership, application developer, and stakeholders to define requirements and refine features
Ensure accessibility, cross-browser compatibility, and compliance with government standards
Test, debug, and optimize applications to ensure performance and reliability
Continuously iterate and improve designs based on user feedback and analytics

Fulltime

UI/UX Developer

Astek

Location:
Poland , Warsaw

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
February 17, 2026

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