Lead architecture and hands-on development for GENIEE SFA/CRM, solve enterprise needs with AI, manage engineering teams, and improve delivery. Two home-working days are possible weekly.
Develop and maintain the iOS version of the Teachme Biz service, focusing on UI renewal and overall development.
Freelance developers from any technical background are welcome. Tell us what you’re interested in, and we’ll email you when a matching project comes through Ranked or our partner network.
Leads banking, B2B fintech, or card-system projects through customer discussions, requirements, quality reviews, launch, and operations, coordinating teams, vendors, schedules, risks, and resources.
Manage the engineering organization behind Fanicon, a membership fan-community app. Lead team building, people management, evaluations, recruiting, and engineering PR.
Technical Project Manager supporting Apple Pay E-Commerce integrations with merchants and payment providers, resolving issues, guiding implementations, and coordinating projects.
Design and develop applications for online medical services including curon, collaborating with product and design teams. The role may also cover operations, maintenance, improvements, technical selection and team building, with remote work available and two office days required weekly.
Design and develop both frontend and backend applications for therapeutic apps and related services in a digital therapeutics team, using TypeScript, Prisma, GraphQL, React, and Redwood.js.
Lead quality design and test engineering for in-vehicle taxi systems, covering Android, hardware, networks and location services. Build CI/CD and automated E2E testing, improve simulation environments, and conduct field tests.
Develop and operate the pixiv Sketch iOS app with Swift, delivering features, improving quality through testing and refactoring, collecting data for analysis, and coordinating with other disciplines.
Senior Systems Engineer handling requirements, design, quality management, project support, and operations for banking, digital solution, or card-system projects.
Develop Android apps, SDKs, libraries, and tools for game content. Use Kotlin to improve performance, investigate defects, implement server communication, and update development environments.
Develop and improve Android applications used in taxi vehicles, including driver, passenger-tablet, payment, GPS, Bluetooth, serial communication, and MQTT functions. The role supports reliable mobility services and future autonomous taxi systems.
Develop Android applications for the Teachme Biz service, including architecture design and UI/UX improvements.
Datadog is hiring a Technical Escalations Engineer 2 focused on RUM. The position is listed for Tokyo, Seoul, and Sydney, but detailed responsibilities are not provided.
Develop and operate USEN PAY’s payment platform across frontend, backend, cloud infrastructure, testing and monitoring. Use TypeScript, React, Kotlin, Spring Boot, AWS and Terraform to build merchant tools and new services, improve performance, strengthen reliability, and support scalable architecture.
Design iOS, Android, and web products; develop user stories from hypotheses, data, and interviews; plan features; test usability; create branding and logos; and help build and manage the design organization.
Develop and operate smartphone applications focusing on UI/UX and service growth, with a wide range of experiences.
Develop and improve Pococha’s iOS app for live streaming and community events, implementing features, refining UI interactions, improving stability, and modernizing its foundation.
Manage banking, digital-solution, or card-system projects, coordinating clients, schedules, risks, quality, releases, and operations. Remote work is available by consultation.
Lead UX/UI design for consumer and business-support products, including offline experiences, while shaping user stories through research and data. Review other designers’ work, support team growth, and guide design strategy across mobility products.
Develop iOS apps, internal SDKs, libraries, and tools for game content; improve performance, modernize platforms, and build reliable UI and server communication.
Develop and improve Pococha's Android app for live-streaming and events, implementing features, refining UI interactions, strengthening the codebase, and streamlining development with AI tools.