1664 Javascript jobs in Nairobi

Company Description

At ClusterBox, we believe business tools should work together, not apart. Our team is developing a unified system that helps brands and sellers stay organized, connected, and in control. Although still in stealth mode, we are making steady progress on our goal of building something new and impactful. Stay tuned for more updates as we continue to innovate.

Role Description

This is a full-time hybrid role for a Mobile Engineer at ClusterBox, based in Nairobi County, Kenya, with some work-from-home flexibility. We're hiring a
Mobile Engineer
to build high-quality, performant
cross-platform mobile applications
for both iOS and Android from a single codebase. You'll own the entire app lifecycle — architecture, performance, release pipelines, and user experience.

Key Responsibilities

• Develop and maintain mobile apps using
  React Native (Expo)
  or
  Flutter
  .
• Implement secure authentication, deep linking, and push notifications.
• Build optimized and reusable UI components for messaging, activity feeds, and task workflows.
• Ensure smooth offline experience (caching, background sync, retry queues).
• Integrate REST/GraphQL APIs, handle edge cases and network failures gracefully.
• Manage mobile CI/CD pipelines, TestFlight/Play Console releases, and OTA updates.
• Track performance metrics and maintain ≥99% crash-free rate across builds.

Required Skills & Experience

• 3–6+ years of professional mobile development experience.
• Strong command of
  React Native (Expo)
  or
  Flutter
  , with at least 3 shipped apps per store.
• Hands-on experience with
  push notifications
  ,
  deep linking
  , and
  offline-first design
  .
• Familiar with secure local storage, background jobs, and app performance optimization.
• Experience consuming RESTful APIs and working closely with backend teams.
• Strong debugging and troubleshooting skills across iOS and Android.

Nice to Have

• Prior experience building chat, booking, or CRM-style mobile interfaces.
• Automated testing experience (Detox, Appium, or similar).
• Familiarity with mobile analytics, crash monitoring, and feature-flag rollouts.

• Develop new user-facing features using modern frontend frameworks (e.g., React, Angular, Vue.js).
• Translate UI/UX design wireframes and mockups into high-quality, responsive code.
• Build reusable code and libraries for future use.
• Optimize applications for maximum speed, scalability, and accessibility.
• Ensure the technical feasibility of UI/UX designs.
• Collaborate effectively with UI/UX designers and backend developers.
• Perform code reviews and mentor junior frontend developers.
• Troubleshoot and debug frontend issues.
• Stay up-to-date with emerging frontend technologies and best practices.
• Contribute to frontend architecture and technology decisions.

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 5+ years of professional frontend development experience.
• Proficiency in HTML5, CSS3, and JavaScript (ES6+).
• Extensive experience with at least one major frontend framework (React, Angular, Vue.js).
• Strong understanding of UI/UX principles and responsive design.
• Experience with version control systems (e.g., Git).
• Familiarity with build tools (e.g., Webpack, Babel) and package managers (e.g., npm, yarn).
• Excellent problem-solving and debugging skills.
• Strong communication and collaboration skills, with experience working in remote teams.
• A portfolio showcasing successful frontend projects and UI/UX implementations is highly desirable.

About PGLS
PGLS is a leading provider of Translation, Interpretation, and Language Training solutions in over 200 languages and regional varieties. Headquartered in the Washington D.C. area with team members spanning five continents, PGLS is a minority-owned company that provides unique, innovative and scalable solutions that advance the global missions of its partners.

We are hiring a UI/UX Designer to help shape both the user experience of our core technology platform and the visual design of our go-to-market (GTM) materials. This is a dual-focus creative role that supports product development and brand growth across multiple channels.

Position Summary
As the UI/UX Designer, you'll report directly to the VP of Product & GTM Strategy and operate across two integrated tracks:

• Product Design: You'll create intuitive, accessible, and efficient interfaces for internal and client-facing tools including interpreter portals, scheduling systems, dashboards, and mobile experiences.
• GTM & Brand Design: You'll develop high-impact marketing and sales assets that support lead generation, brand awareness, and partner engagement across digital and print formats.

This role combines system-level UX thinking with hands-on graphic design, making it ideal for someone who enjoys working on both functional interfaces and creative brand storytelling.

Job Responsibilities
*Product UI/UX Design *

• Create wireframes, user flows, prototypes, and high-fidelity mockups based on product specs and user stories
• Design user-friendly dashboards and workflows for interpreters, clients, and internal teams
• Apply best practices in accessibility (e.g., 508 compliance), responsive design, and multilingual UX
• Support product discovery and user testing sessions with interaction mockups
• Maintain a scalable design system to ensure speed and consistency across releases

*GTM & Graphic Design *

• Develop branded visual assets for lead generation, brand campaigns, and sales support, including:

• Brochures, one-pagers, whitepapers, and data sheets

• LinkedIn ads, carousel posts, and banners

• Email templates and website visuals

• Ensure visual consistency across GTM collateral, internal decks, presentations, and trade show graphics

• Help communicate value propositions across services (e.g., OPI, VRI, Translation, Localization, Training)
• Collaborate with marketing and growth teams to enhance digital campaign design

Requirements

• 5–8+ years of professional experience in design roles
• At least 3 years in UI/UX design for SaaS, B2B, or enterprise platforms
• At least 2 years in graphic design for marketing or sales teams
• Experience working in agile environments with product managers, engineers, and marketers
• Proven track record of owning design projects from concept to execution

Preferred Skills

• UI/UX Design: Strong command of user-centered design and prototyping using Figma
• Graphic Design: Ability to design for both print and digital formats with brand consistency
• Systems Thinking: Comfortable managing design across complex, multi-product environments
• Product Collaboration: Experienced working with product and engineering teams in agile sprints
• Marketing Sensibility: Understands how to build assets that support clear messaging and conversion

*Tools & Technologies *

• UI/UX: Figma, FigJam, Adobe XD
• Graphic Design: Adobe Creative Suite (Photoshop, Illustrator, InDesign)
• Presentation & Web: PowerPoint, Keynote, Canva, Webflow (bonus)
• Project Management: Jira, Asana, or similar collaboration tools

Bonus Experience (Nice To Have)

• Experience in SaaS, healthcare tech, education platforms, or language services
• Understanding of localization/internationalization in design
• Familiarity with HTML/CSS and developer handoff workflows
• Exposure to CRM/marketing platforms (HubSpot, ActiveCampaign, Mailchimp)
• Experience with branding or rebranding initiatives
• Designing for multilingual or cross-cultural user bases

Benefits
PGLS offers a wide range of benefits, including health coverage, pension, and a flexible work schedule.

About us:

Tana
empowers brilliant young people in Kenya to start meaningful careers by training them for tech and data roles, and embedding them into full-time, remote positions with companies across North America and Europe. We're hiring a Software Engineer (Java) to join one of our client's engineering teams, working remotely from Kenya.

Position overview:

We are hiring for Software Engineer roles with several partner companies, including 1) a leading US-based software company building next-generation automation platforms; and 2) a leading global network security company. As a Software Engineer you'll play a critical role in developing applications and tooling using Java-based frameworks for companies that serve Fortune 500 clients.

Responsibilities:

Precise responsibilities will depend on the partner company that the successful candidate is matched with, but some sample responsibilities include:

• Develop and maintain software tools that automate the migration of Java-based applications.
• Analyze source applications to extract logic and assist in transforming them into modern architectures.
• Develop features using Java-based frameworks that communicate with different network security protocols of the company's clients.
• Collaborate on tool design decisions, following existing engineering patterns and frameworks.
• Help troubleshoot issues and improve the effectiveness of migration tools.
• Contribute to team discussions, standups, and sprint activities in an Agile setup.

Requirements:

• 2+ years of hands-on experience with Java development in a professional setting.
• Strong understanding of core data structures, algorithms, and relational databases.
• Experience with tools like Git, Jira, and version/change management workflows.
• Familiarity with flat-file formats and working with large-scale data transformations.
• Strong analytical and debugging skills, particularly when working with legacy systems.
• Excellent communication skills and ability to work closely with cross-functional teams.
• Solid knowledge of unit testing frameworks like JUnit and a test-driven mindset.
• Bonus: Knowledge of IT networking fundamentals
• Bonus: Exposure to compiler concepts such as linking or parsing logic is a plus.

Location:

This is a full-time, hybrid role based in Nairobi, Kenya.

Contracting:

If selected, you will be hired by Tana and embedded full-time with our client.

Smartmile is a dynamic and agile startup that opens doors to a sustainable world through platform delivery innovations. We are now growing rapidly and are looking to expand our herd to support this growth. You will become a member of our skilled team in Nairobi. As a part of Smartmile, you shape the future of design and open doors to a visually appealing world

You will join our creative team on the following tasks:

• Design and implement visual elements for our marketing campaigns, web applications, and hardware UIs.
• Create corporate identity materials, social media graphics, infographics, and visual assets that strengthen our brand.
• Collaborate with the tech team to build UI/UX designs and ensure a consistent visual language across all our products.
• Develop creative concepts and ideas that visually express our mission and values.

Personally, You Should Bring Along

• A good understanding of UI/UX principles.
• At least 3 years of relevant professional experience.
• A desire to directly implement creative ideas.
• Very good spoken and written English, as our company language is English.
• Strong learning orientation and the ability to quickly get up to speed with new design tools and processes.
• Excellent communication and team skills.
• Willingness to travel to our locations and partners worldwide.
• Commitment to our company's core values.

Technical Skills Required

• Expert-level experience in common design tools like Adobe Creative Suite (Photoshop, Illustrator, InDesign) and Figma.
• Knowledge in creating vector graphics and print-ready files.
• Experience working with developers and handing off designs for implementation.
• Good knowledge of creating animations or videos (After Effects, Premiere Pro) is a plus.
• Familiarity with project management (experience with Jira).

What We Offer You

• Be part of the mission to build the new sustainable worldwide infrastructure for deliveries.
• Play a key role in a growing international team with strong involvement in fundamental projects from the start.
• Take ownership of your work, develop your skills, and take your career to the next level.
• Work at one of the most dynamic innovation centers in Kenya at iHub
• Competitive compensation.
• The position is a full-time position.

You have until the
2nd of October 2025
to prepare and send your application.

The recruitment process is ongoing with interviews already taking place during the application period. We know a unicorn when we see one and can't wait to meet you We would like you to start immediately; if this is not possible, we are happy to learn when you would be able to join our team the soonest.

Find out more why it is great to work for Smartmile here

Privacy at Smartmile | Legal Information | Recruitment Privacy Policy

Position:.UI/UX Product Designer

Reporting to: Director of Innovation

Location: Nairobi, Kenya.

Role type: Full-Time - Fixed term contract 1 year

About SunCulture
Founded in 2012, SunCulture's vision is to build a world where people take control of their environment in rewarding and sustainable ways. SunCulture achieves this by developing and commercializing life-changing technology that solves the biggest daily challenges for the world's 570 million smallholder farming households. The company is the largest distributor of solar water pumps/solar irrigation for smallholder farmers in Africa and was recognized by Fast Company as one of the World's Most Innovative Companies in 2021. SunCulture has grown significantly over the last five years, now employing over 400 people globally.

About Maarifa
Maarifa (the Swahili word for knowledge or wisdom) is a data platform by SunCulture with integrated credit scoring and Peer-2-Peer engagement. It aims to connect opportunities for smallholder farmers in East Africa, addressing challenges like limited market access, price volatility, and exploitation by intermediaries. Maarifa supports Sustainable Agriculture (SDG 2) by providing market access and reducing post-harvest losses, and Social Entrepreneurship (SDG 8) by empowering smallholder farmers to improve economic stability. It also enables farmers to demonstrate financial stability, making them financible by SunCulture's irrigation business, thereby supporting Water Access (SDG 6). The platform facilitates communication between farmers and outgrowers, provides training, and allows for payments and credit score building.

About The Role
The UI/UX Product Designer for Maarifa Rollout will play a leading role in the planning and execution of the Maarifa initiative's user experience and interface design. Reporting to the Director of Innovation, this position will be crucial in ensuring the successful development, launch, and scaling of SunCulture's outgrower data platform. This role demands a dynamic leader with strong UI/UX design skills, a deep understanding of user-centered design principles, and a passion for creating impactful products for underserved communities.

Key Responsibilities

• Lead UI/UX Design for Maarifa: Provide comprehensive leadership and oversight for the user interface and user experience aspects of the Maarifa project rollout, from concept to full-scale deployment.
• Conduct End-User Research: Plan and execute thorough end-user research, including interviews, surveys, and usability testing, to deeply understand the needs, pain points, and behaviors of smallholder farmers, outgrowers, and agricultural entrepreneurs in East Africa. Develop detailed user personas and journey maps10.
• Design and Prototype User Experiences: Create intuitive, user-friendly, and visually appealing designs for the Maarifa web and Android applications, as well as the WhatsApp bot and USSD/SMS interfaces11. Develop wireframes, mockups, and interactive prototypes using Figma and Adobe tools.
• Collaborate with Technical and Commercial Teams: Work closely with the technical development team to ensure the feasibility of designs and with the business development and field support teams to align design solutions with market needs and user adoption strategies
• Iterate and Optimize Based on Feedback: Continuously gather user feedback and performance data, and iterate on designs to improve usability, engagement, and overall user satisfaction.
• Ensure Design System Consistency: Develop and maintain a consistent design system and component library to ensure brand coherence and efficient scaling of the platform.

Qualifications

• Bachelor's degree in Interaction Design, Human-Computer Interaction, Graphic Design, or a closely related field.
• Proven experience (typically 3+ years) in UI/UX product design, with strong experience specifically in designing for high-traffic, consumer-facing digital products.
• Demonstrated mastery of design tools such as Figma and Adobe Creative Suite.
• Strong portfolio showcasing end-user research methodologies, case studies, and interactive prototypes.
• Experience participating in the launch of new products with a new go-to-market strategy is highly desirable.
• Excellent organizational, communication, and interpersonal skills.
• Ability to work independently and as part of a multidisciplinary team in a fast-paced environment.
• Experience working in East Africa, particularly with underserved populations or in rural contexts, is highly desirable.
• Understanding of agricultural value chains or financial inclusion products is a plus.

Does this sound like you?

If you are a driven and experienced UI/UX Product Designer with a deep understanding of user-centered design and a passion for leveraging innovative technology to create significant social and economic impact for smallholder farmers, we encourage you to apply.

Interested?

Please apply online via this job portal. We respond to all candidates; however, only shortlisted candidates will be interviewed.

Please Note
SunCulture is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations, and ordinances14.

• Design intuitive and engaging user interfaces for web and mobile applications.
• Conduct user research, including interviews, surveys, and usability testing, to understand user needs and behaviors.
• Create wireframes, user flows, and interactive prototypes to effectively communicate design concepts.
• Develop high-fidelity mockups and visual designs that align with brand guidelines and aesthetic principles.
• Collaborate closely with product managers and developers throughout the design and development lifecycle.
• Iterate on designs based on user feedback, usability testing, and performance data.
• Ensure design consistency across all digital platforms and products.
• Stay up-to-date with the latest UI/UX trends, tools, and technologies.
• Present design concepts and rationale clearly and effectively to cross-functional teams and stakeholders.
• Advocate for the user throughout the product development process.
• Contribute to the development of design systems and style guides.
• Optimize user experience based on analytics and A/B testing results.

• Bachelor's degree in Design, HCI, Computer Science, or a related field, or equivalent practical experience.
• Proven experience (3+ years) as a UI/UX Designer with a strong portfolio demonstrating exceptional design skills.
• Proficiency in design and prototyping tools such as Figma, Sketch, Adobe XD, InVision, etc.
• Solid understanding of user-centered design principles, usability heuristics, and interaction design.
• Experience conducting user research and usability testing.
• Familiarity with front-end development principles and constraints is a plus.
• Excellent visual design skills with a keen eye for detail and aesthetics.
• Strong communication, presentation, and interpersonal skills.
• Ability to work effectively in a fast-paced, collaborative, remote environment.
• Experience designing for both web and mobile platforms.
• Ability to manage multiple projects and meet deadlines.

• Lead the design and implementation of user-centered design solutions for web and mobile applications.
• Conduct user research, including interviews, surveys, and usability testing, to gather insights and inform design decisions.
• Create user personas, journey maps, wireframes, prototypes, and high-fidelity mockups.
• Develop and maintain comprehensive design systems and style guides to ensure brand consistency and efficiency.
• Collaborate closely with product managers, engineers, and stakeholders to define product vision and translate requirements into intuitive user interfaces.
• Mentor and guide junior designers, fostering a culture of creativity and excellence within the design team.
• Champion user experience best practices and advocate for the user throughout the product development lifecycle.
• Analyze user feedback and data to iterate and improve existing designs.
• Present design concepts and rationale to stakeholders, effectively communicating design decisions.
• Stay updated on the latest UI/UX trends, tools, and technologies.

• Bachelor's degree in Design, HCI, Computer Science, or a related field, or equivalent practical experience.
• Minimum of 7 years of professional experience in UX/UI design, with a strong portfolio showcasing innovative digital products.
• Proven experience leading design projects from conception to launch.
• Expertise in user research methodologies and usability testing.
• Proficiency in design and prototyping tools such as Figma, Sketch, Adobe XD, InVision, etc.
• Deep understanding of design principles, typography, color theory, and interaction design.
• Experience designing for both web and mobile platforms (iOS and Android).
• Excellent communication, presentation, and interpersonal skills.
• Ability to work independently, manage time effectively, and collaborate asynchronously in a remote environment.
• Experience mentoring junior designers is a significant plus.