Frontend Engineer

• Frontend Engineer
• Anonymous Employer
• Engineering & Technology
• 2 months ago
• Easy apply
• Nairobi
• Full Time
• IT & Telecoms
• Confidential
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• Job summary
• We are looking for a Senior Frontend Engineer to play a critical role in building high-quality, elegant and responsive user

Experience

• using the latest front-end technologies.
• Level:
• Senior level
• Length:
• 6 years
• Language Requirement:
• English
• Working Hours:
• Full Time - 8 to 5
• Applicant
• Location:
• Kenya
• Job descriptions &
• using the latest front-end technologies. Embedded within a cross-functional tech
• squad, this role works in close collaboration with backend engineers, UX/UI
• designers, and the Scrum Master to deliver high-quality features iteratively
• within sprint cycles.
• 4. Key
• across key customer journeys.
• ·
• Build
• frontend components that are accessible, usable, and aligned with agreed
• standards.
• ·
• Collaborate
• effectively with design, backend, and data counterparts to support endtoend feature delivery
• 6. Stakeholders & Ways of Working
• Agile Ceremonies:
• All sprint ceremonies; participate in technical
• refinement for frontend stories; daily stand-ups.
• Reporting Cadence:
• ·
• Sprint-level:
• frontend delivery status at sprint review.
• ·
• Ad-hoc:
• technical blockers escalated to Backend Engineers or Scrum Master within 4
• hours.
• Cross-Functional Touchpoints:
• ·
• UI/UX
• Designer (design handoff, specification review, usability feedback).
• ·
• Backend
• Engineers (API contracts, data models, integration testing).
• ·
• Data
• Scientist (analytics event taxonomy, tracking validation).
• ·
• API
• Integration Engineer (frontend-side API integration support).
• ·
• QA
• team (test execution, device testing, UAT).
• 7.
• Required Skills &
• ·
• Extensive
• frontend/mobile engineering experience, including production-grade mobile app
• development (Android, iOS, or React Native / Flutter cross-platform).
• ·
• At
• least 3 years in payments, fintech, or mobile money application development.
• ·
• with frontend architecture design, component library strategy, and technical
• leadership.
• ·
• Proficiency
• in native Android (Kotlin/Java) / native iOS (Swift) or equivalent
• ·
• consuming RESTful APIs and handling complex async data flows in frontend/mobile
• applications.
• ·
• Familiarity
• with mobile app testing frameworks and UI test automation.
• ·
• Strong
• understanding of mobile performance optimisation and network efficiency.
• ·
• implementing third-party SDK or payment gateway integrations within mobile
• apps.
• ·
• Working
• knowledge of analytics/event-tracking SDK integration (Firebase, Mixpanel, or
• equivalent).
• 8.
• with M-Pesa app development or comparable super-app / mobile wallet
• platforms.
• ·
• Familiarity
• with push provisioning flows, digital wallet standards (e.g., Google Pay, Apple
• Pay SDK integration).
• ·
• with CYBS (CyberSource) mobile SDK or payment form integration.
• ·
• Knowledge
• of accessibility standards (WCAG) in mobile contexts.
• ·
• Familiarity
• with A/B testing frameworks and feature flagging tools.
• ·
• with offline-first or low-connectivity mobile app design patterns (relevant for
• emerging markets context).
• 9.
• Tools & Technologies
• ·
• Mobile
• frameworks: Kotlin / Swift or equivalent
• ·
• Design
• collaboration: Figma or equivalent
• ·
• Analytics:
• Firebase Analytics, Mixpanel, or equivalent
• ·
• Testing:
• Detox, Espresso, XCTest, or equivalent mobile test frameworks
• ·
• API
• testing support: Postman or equivalent
• ·
• Version
• control: Git (GitHub / GitLab / Bitbucket)
• ·
• CI/CD:
• Fastlane / GitHub Actions / Bitrise / equivalent mobile CI
• ·
• Performance
• profiling: Android Profiler / Xcode Instruments / equivalent
• ·
• Issue
• tracking: Jira / Azure DevOps
• ·
• Documentation:
• Confluence / SharePoint
• 10.
• Contract/Secondment Notes
• ·
• This
• is a contract/secondment engagement. The resource must comply with all
• applicable information security, data protection, and confidentiality
• obligations, including secure coding standards for payment-handling
• applications.
• ·
• Performance
• will be assessed on a deliverables basis, with formal reviews at 30, 60, and 90
• days.
• ·
• Knowledge
• transfer to client's in-house frontend engineering team is a standing
• obligation throughout the engagement.
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Requirements

• 1. Role Title & Level
• Frontend Engineer
• Senior (6+ years of experience)
• 2.
• Engagement Summary
• ·
• Engagement
• Type:
• Contract / Secondment
• ·
• Squad
• Context:
• Embedded within the Visa–client joint Tech
• Squad; responsible for frontend feature delivery, app UI integration, and push
• provisioning flows
• ·
• Expected
• Duration:
• [12 months]
• · Primary
• Location:
• [Nairobi, Kenya] — Expectation of days in the office will be confirmed by your
• Hiring Manager
• ·
• Sprint Cadence:
• Fortnightly agile sprints
• ·
• Reporting Line:
• [Reports to Technical Program Manager, TPM]
• 3. Role Purpose
• We are looking for a Senior Frontend Engineer
• to play a critical role in building high-quality, elegant and responsive user

Responsibilities

• ·
• Implement
• frontend features and enhancements for push provisioning flows within the
• M-Pesa app, including wallet provisioning UI, token management screens, and
• user consent flows.
• ·
• Integrate
• CYBS (CyberSource) payment services into the M-Pesa application frontend,
• implementing required UI components and user flows to specification.
• ·
• Execute
• frontend test scripts for acquiring/payment acceptance flows, including
• UI-level functional tests and end-to-end test scenarios
• ·
• Collaborate
• with the UI/UX Designer to translate wireframes, prototypes, and design
• specifications into pixel-accurate, responsive, and accessible frontend
• implementations.
• ·
• Implement
• analytics and event-tracking instrumentation within the app frontend to support
• digital lift measurement and data-driven campaign tracking.
• ·
• Ensure
• frontend code meets performance standards: app load time, rendering
• performance, and network efficiency benchmarks defined in the project's
• performance budget.
• ·
• Build
• and maintain frontend unit and integration tests; contribute to automated UI
• testing frameworks where applicable.
• ·
• Work
• with Backend Engineers to agree and consume backend API contracts; surface and
• resolve API integration issues at the frontend layer.
• ·
• Support
• knowledge transfer by producing component documentation, frontend integration
• guides, and onboarding materials for internal team frontend engineering
• counterparts.
• 5. Measurable Outcomes & Deliverables
• First 30 Days
• ·
• Development
• environment configured; app codebase reviewed; understanding existing frontend
• architecture documented.
• ·
• First
• sprint frontend deliverables completed and reviewed (per sprint plan); code
• merged to agreed branch.
• ·
• Analytics
• instrumentation plan produced (in collaboration with Data Scientist): event
• taxonomy defined, tracking library confirmed.
• ·
• Frontend
• technical approach document produced for push provisioning flow implementation.
• ·
• Device/OS
• test matrix agreed and documented.
• Days 31–60
• ·
• Push
• provisioning UI components implemented and validated in sandbox/development
• environment.
• ·
• CYBS
• integration frontend components: at least one payment flow UI built and tested
• against sandbox backend.
• ·
• Analytics
• events implemented and validated for at least two key user journeys (e.g., card
• provisioning, payment initiation).
• ·
• Achieve
• ≥ 70% frontend unit test coverage on all new code delivered to date
• · Document a component library inventory of
• reusable frontend components built to date
• Days 61–90
• ·
• Push
• provisioning frontend flows signed off by UI/UX Designer and Product Owner;
• functional tests passing across agreed device matrix.
• ·
• CYBS
• integration frontend completed and UAT-ready; test script evidence documented.
• ·
• Full
• analytics instrumentation live in staging; digital lift tracking validated
• end-to-end with Data Scientist.
• ·
• Frontend
• integration guide produced and handed over to client frontend engineering team.
• ·
• At
• least two knowledge transfer sessions delivered to client frontend developers.
• Ongoing KPIs
• ·
• Deliver
• frontend features in line with sprint commitments and agreed designs.
• ·
• Maintain
• high UI quality through effective testing and early identification of defects.
• ·
• Ensure
• optimal performance and smooth user

Preferred Qualifications

• / Nice-to-Have Skills
• ·
• Direct