Kevin Langat

Kevin Langat

$25/hr
Mobile App Developer
Reply rate:
-
Availability:
Full-time (40 hrs/wk)
Age:
31 years old
Location:
Nairobi, Nairobi, Kenya
Experience:
5 years
Kevin Langat Software Developer Nairobi, Kenya | - |-https://www.linkedin.com/in/kevin-langat- | https://github.com/Kevnlan PROFESSIONAL SUMMARY Software Developer with 5+ years of expertise in full-stack development, specializing in mobile applications, backend systems, and cross-platform solutions. Proven track record of delivering 20+ production applications across Android and iOS platforms, including government and enterprise solutions. Expert in Python, JavaScript, Dart, and modern development frameworks with strong leadership and mentoring capabilities. TECHNICAL SKILLS Programming Languages: Python, JavaScript, Dart, Java Frontend Technologies: Vue.js, Flutter, Backend Technologies: Django, Node.js, Mobile Development: Flutter, Android, iOS, Databases: PostgreSQL, MySQL, MongoDB, Firebase Tools & Platforms: Git, Docker, CI/CD, Agile, Scrum, Code Reviews Soft Skills: Team Leadership, Mentorship, Problem Solving, Communication PROFESSIONAL EXPERIENCE Mobile Developer | Nathan Digital | Dec 2023 – Present ●​ Configured push notifications using Firebase Cloud Messaging (FCM) for targeted and reliable delivery. ●​ Managed app distribution to select user groups (internal teams, UAT) via Firebase App Distribution. ●​ Set up CI/CD pipelines to streamline app deployment across internal testing, UAT, and production environments. ●​ Built reusable packages to enable dynamic UI rendering across multiple mobile applications. ●​ Designed and maintained custom mobile libraries for seamless integration and modular development. ●​ Successfully published 8+ mobile applications on both the Google Play Store and Apple App Store. ●​ Diagnosed and resolved complex app issues using crash reports, analytics tools, and user feedback. ●​ Employed Agile methodologies to ensure fast and iterative development cycles. ●​ Crafted responsive, intuitive, and visually appealing user interfaces for enhanced user experience. ●​ Refactored and modernized legacy applications to boost performance, stability, and maintainability. Software Developer | Neurodev Technologies | May 2019 – May 2025 ●​ Led the development of custom software solutions tailored for enterprise clients across diverse industries. ●​ Architected and implemented scalable, secure backend systems and RESTful APIs to support web and mobile platforms. ●​ Designed and maintained CI/CD pipelines for automated testing, building, and deployment of both backend services and mobile applications. ●​ Configured and managed databases, including MongoDB, ensuring optimal performance, data integrity, and scalability. ●​ Integrated various payment solutions such as Stripe, PayPal, and M-Pesa into web and mobile applications for seamless transactions. ●​ Debugged and optimized mobile applications by leveraging analytics platforms and crash reporting tools to identify and resolve issues. ●​ Designed responsive, user-focused interfaces by applying UX best practices and modern design principles. Software Developer | Value Chain Factory | Sep 2021 – Dec 2023 ●​ Designed and implemented scalable APIs and backend systems to support feature-rich mobile applications. ●​ Translated UI/UX design mockups into responsive, functional, and user-friendly code across multiple platforms. ●​ Built and maintained proprietary libraries and reusable components used across various projects to ensure consistency and efficiency. ●​ Developed and maintained a custom state management package to streamline complex app workflows. ●​ Created a dynamic form builder package for flexible data collection and UI generation. ●​ Integrated both RESTful APIs and WebSockets for real-time data transmission and responsive user experiences. ●​ Handled app versioning and secure distribution for apps not published on Play Store or App Store using Firebase App Distribution. ●​ Architected and built fully offline-first mobile applications capable of syncing data when connectivity is restored. ●​ Designed solutions for reliable data transmission from devices in low-network or unstable connectivity environments. ●​ Built cross-platform desktop applications and configured compatibility across Windows, Linux, and macOS environments. ●​ Collaborated with cross-functional teams, including QA, product management, and design, to solve technical and user-centric challenges. ●​ Mentored junior developers, led code reviews, and enforced best practices across development teams. ●​ Researched, adopted, and promoted best practices to improve development processes and code quality. ●​ Performed database query optimization to enhance backend performance and scalability under high-load conditions. ICT Support & UI/UX Designer | Greenhub Kenya | Jun 2021 – Jul 2021 ●​ Planned and executed website development by transforming design mockups into responsive, functional web applications using HTML, CSS, and JavaScript. ●​ Developed interactive websites using HTML, CSS, JavaScript, and jQuery, ensuring cross-browser compatibility and performance. ●​ Designed intuitive and engaging web and mobile interfaces based on modern UX principles to enhance user experience. ●​ Applied SEO best practices throughout the development process to optimize website visibility and performance in search engines. ●​ Conducted in-depth research on web security, SEO best practices, and emerging web development trends to enhance application performance, user trust, and competitiveness. ●​ Onboarded and trained new team members in development workflows, design tools, and system usage to accelerate productivity. ●​ Delivered hands-on training sessions for staff on internal systems, productivity tools, and software development best practices. ●​ Defined personnel qualifications and coordinated onboarding activities to align new hires with project and company goals. ●​ Facilitated team knowledge growth through mentorship, training, and collaborative research initiatives. Software Developer | Sinsolut Technologies | Jan 2021 – Apr 2021 ●​ Developed Customer Tracking System App for Progressive Credit ●​ Identified and resolved bugs in software projects. ●​ Learned software engineering process improvements and best practices. ●​ Delivered project reports and milestone updates to supervisor. ●​ Shadowed team members to learn new tasks and how to appropriately handle technical issues. ●​ Wrote clear, clean code for various projects. ●​ Prepared and submitted reports and other documentation to assist development team members. ICT Intern | Kisumu Law Courts | May 2019 – Aug 2019 ● Maintained and repaired hardware and networking devices. ● Diagnosed connectivity issues and restored network access. ● Installed and supported software and trained end-users. PROJECTS Kenyan Government Digital Services Led mobile development for flagship Kenyan government apps, including NTSA for motor services, eCitizen for centralized citizen access, and KPA for port logistics. These apps bring critical public services into the hands of millions. CapitalPay Money Transfer Platform Developed CapitalPay’s dual-app fintech solution: a customer-facing app for digital wallet, transfers, and bill payments, and an agent app for field-based transactions and onboarding. Focused on real-time transaction processing and security. Finance Pro – Accounting Suite for Enterprises Built a robust accounting platform for Nathan Digital to serve enterprise clients. Features include invoicing, expense tracking, payroll integration, and financial reporting — tailored for GCC-based businesses. Nathan Digital Enterprise Suite Created a full-stack suite of enterprise applications covering HR (HR Direct), CRM, ERP (Internal ERP), training (Pro Training App), and workforce management (Expat Employee). Delivered natively for both Android and iOS. Project & Team Performance Tools Engineered apps such as Project Central and Project Pulse for managing projects, tracking milestones, and visualizing team productivity. Also built Club Lab Golf and PEO Central for event management and workforce outsourcing. EDUCATION Bachelor of Science in Computer Science | Maseno University Kenya Certificate of Secondary Education (KCSE) | Kericho High School LANGUAGES English (Fluent)
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