Freelancers for hire in Japan
Showing 35 results
Sponsored Freelancers
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Veteran, expert system developer in multiple domains including web apps, iOS and Android, embedded microprocessor systems, High-Performance Computing with NVidia GPUs (CUDA), graphics, database, and telcommunication systems. Large scale projects from concept to development to marketing no problem. Longtime U.S....Veteran, expert system developer in multiple domains including web apps, iOS and Android, embedded microprocessor systems, High-Performance Computing with NVidia GPUs (CUDA), graphics, database, and telcommunication systems. Large scale projects from concept to development to marketing no problem. Longtime U.S. expat in Japan, so bi-lingual in English & Japanese. I am fairly new to Freelancer (but not at development), so I only have a few Freelancer "references" and "credits" so far. Personal references and examples of various projects, both small and large, will gladly be provided upon request. less
Hire bestwmm
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riogushiken1114 riogushiken1114
$35 USD / hour
Full Stack–AI,Python,JS/TS,PHP,Scraping,AutomationJapan7+ years as a Full-Stack & AI Engineer building scalable web apps, AI-driven systems, and high-volume data pipelines for startups and businesses. Core Expertise AI / ML: LLMs (OpenAI), NLP, recommendation systems, predictive analytics, RAG (Weaviate), TensorFlow, PyTorch Backend: Python (FastAPI, Django),...7+ years as a Full-Stack & AI Engineer building scalable web apps, AI-driven systems, and high-volume data pipelines for startups and businesses. Core Expertise AI / ML: LLMs (OpenAI), NLP, recommendation systems, predictive analytics, RAG (Weaviate), TensorFlow, PyTorch Backend: Python (FastAPI, Django), Node.js, Ruby on Rails, Laravel (PHP) Frontend: React, Next.js, TypeScript Data Scraping: Large-scale scraping, anti-bot handling, automation, ETL pipelines Cloud & DevOps: AWS, GCP, Docker, Kubernetes, CI/CD CMS: Wordpress, E-commerce SEO: Google, AI search engine I deliver production-ready solutions, not just codeclean architecture, scalable APIs, and automation that saves time and money. MVPs Production Fast communication Long-term, reliable delivery If you need AI, scraping, or a full-stack system done rightlets build it. less
Hire riogushiken1114
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Active & Dedicated Java Engineer specializing in Spring Boot, Microservices Architecture, and Enterprise Applications. Expert in Java 8+, Spring Framework, Hibernate, Maven, REST APIs, and SQL databases. Proven track record building scalable, high-performance applications with 99.9% uptime. Core Technologies: Java...Active & Dedicated Java Engineer specializing in Spring Boot, Microservices Architecture, and Enterprise Applications. Expert in Java 8+, Spring Framework, Hibernate, Maven, REST APIs, and SQL databases. Proven track record building scalable, high-performance applications with 99.9% uptime. Core Technologies: Java Developer | Spring Boot | Spring MVC | Spring Security | Microservices | Docker | Kubernetes | AWS Cloud | Git | Jenkins | JUnit | MySQL | PostgreSQL Achievements: Reduced application response time by 40% | Implemented CI/CD pipelines | Led agile development teams | Delivered enterprise-grade solutions Ready to drive innovation and deliver robust Java solutions that exceed business expectations. less
Hire misakim2
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Hello and welcome to my profile. I'm a developer with five years of hands-on experience, specializing in solving real business problems through code. My strength is in bridging the gap between a client's vision and a functional solution—taking ownership from concept to delivery. My approach has been refined through...Hello and welcome to my profile. I'm a developer with five years of hands-on experience, specializing in solving real business problems through code. My strength is in bridging the gap between a client's vision and a functional solution—taking ownership from concept to delivery. My approach has been refined through numerous projects on Japanese freelance platforms like CrowdWorks and Lancers. Now, I'm eager to apply this experience on a global stage—to take on more diverse challenges, collaborate with international clients, and grow as a developer in a broader context. I'm ready to bring this focused, solution-oriented mindset to your project. Let's discuss how we can turn your idea into reality. Thank you for your time and consideration. less
Hire wenten
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I am a Data Scientist and Native Japanese Speaker with a strong background in Economics and Statistics at the university level. I offer a unique combination of analytical rigor and linguistic precision. 1. Data Science & Statistics: My expertise lies in data cleaning, statistical modeling, econometrics, and...I am a Data Scientist and Native Japanese Speaker with a strong background in Economics and Statistics at the university level. I offer a unique combination of analytical rigor and linguistic precision. 1. Data Science & Statistics: My expertise lies in data cleaning, statistical modeling, econometrics, and reproducible reporting using R, Quarto, and the Tidyverse. I can help you transform raw data into actionable insights through rigorous analysis and clear visualization (ggplot2). My experience ranges from survey data to causal inference and panel data models. 2. Japanese Localization & AI Evaluation (RLHF): I provide high-quality Japanese data annotation, transcription, and Quality Control (QC) for AI development. I have professional experience in: - RLHF (Reinforcement Learning from Human Feedback): Evaluating and editing Japanese responses for LLMs. - ASR Correction: Proofreading and correcting automated speech recognition outputs against audio. - Translation & Localization: Ensuring natural, context-aware Japanese phrasing. I value clarity, reliability, and precision in every project. Whether you need reproducible statistical workflows or expert-level Japanese language evaluation, I am ready to support your project. less
Hire yetanothersu
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Hello, my name is Daichi, and I am a photographer and photo editor specializing in portrait and commercial photography. I have extensive experience in retouching, color grading, and high-end image editing, with a strong focus on creating natural, polished, and visually compelling results. I work with Adobe Lightroom...Hello, my name is Daichi, and I am a photographer and photo editor specializing in portrait and commercial photography. I have extensive experience in retouching, color grading, and high-end image editing, with a strong focus on creating natural, polished, and visually compelling results. I work with Adobe Lightroom and Photoshop on a daily basis, handling edits from basic enhancements to detailed retouching such as skin correction, flyaway hair cleanup, lighting adjustments, and background refinement. Whether it’s family portraits, studio shoots, product images, or event photography, I always aim for professional precision and artistic quality. here's my portfolio : https://chiography.myportfolio.com/ I take pride in my attention to detail, clear communication, and commitment to delivering work that meets each client’s specific vision. If you’re looking for a reliable and skilled photographer and retoucher, I’d love to collaborate and help bring your ideas to life. Thank you for your time, and I look forward to working with you! less
Hire Daichi619
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Japanese AI Content Annotator | Prompt/Response Writer | LLM QA | Tech & Web3 (JP/EN) I’m Keita Takayasu, a native Japanese AI content annotator and writer with 5+ years of experience supporting tech, Web3, and AI teams. 💼 What I Do I create, evaluate, and edit Japanese LLM outputs to improve fluency,...Japanese AI Content Annotator | Prompt/Response Writer | LLM QA | Tech & Web3 (JP/EN) I’m Keita Takayasu, a native Japanese AI content annotator and writer with 5+ years of experience supporting tech, Web3, and AI teams. 💼 What I Do I create, evaluate, and edit Japanese LLM outputs to improve fluency, instruction-following, factual consistency, and cultural accuracy. I also write prompt–response pairs and quality guidelines/rubrics to keep human evaluations consistent and audit-ready. Additionally, I handle Japanese content production and localization when needed, including SEO planning and WordPress publishing. 🔍 Key Skills Native Japanese + professional English (reading/writing) LLM evaluation & editing (fluency, tone, compliance, consistency) Prompt/response writing, data annotation, rubric/checklist creation EN→JA localization for tech topics (natural, intent-preserving) Strong domain knowledge: Web3/crypto, cloud infrastructure, generative AI Light SEO support (keyword research, structure, on-page basics) 🏆 Highlights Contributor to real-world LLM improvement through annotation, QA, and feedback loops Top 3 rankings on Google JP for “Amazon EBS” and “SLAとは” 150+ Web3 articles + 100+ technical articles delivered 🔗 Featured Work What is Amazon EBS? – #2 on Google JP What is SLA? – #3 on Google JP NEAR Protocol Explained – long-form JP crypto guide less
Hire yasukei404
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I am a highly skilled software engineer with a diverse expertise spanning multiple programming languages and frameworks, including JavaScript (React, Next.js, Angular, Vue, Nuxt, Express, Fastify), PHP (Laravel, CodeIgniter, WordPress), Python (Django, FastAPI, Odoo), and C# (ASP.NET). My proficiency extends to...I am a highly skilled software engineer with a diverse expertise spanning multiple programming languages and frameworks, including JavaScript (React, Next.js, Angular, Vue, Nuxt, Express, Fastify), PHP (Laravel, CodeIgniter, WordPress), Python (Django, FastAPI, Odoo), and C# (ASP.NET). My proficiency extends to artificial intelligence and machine learning, with hands-on experience in TensorFlow and OpenAI. Additionally, I am well-versed in cloud computing platforms such as Google Cloud Platform (GCP), including Google Cloud Functions, and Amazon Web Services (AWS). With a strong foundation in full-stack development, I specialize in creating dynamic, responsive, and scalable web and desktop applications and mobile app. My experience encompasses both front-end and back-end development, allowing me to deliver comprehensive solutions that meet client requirements effectively. I am passionate about leveraging the latest technologies to build innovative and efficient software systems. My commitment to excellence is reflected in my ability to adapt to new technologies and continuously expand my skill set. I thrive in collaborative environments and am dedicated to delivering high-quality work that drives success for my clients. Skills ⭐ Programming Languages: JavaScript, PHP, Python, C#, C/C++, Dart ⭐ Frameworks and Libraries: ✅ JavaScript: React, Next.js, Angular, Vue, Nuxt, Express, Fastify, Electron.js ✅ PHP: Laravel, Laravel Sails, Symfony, CodeIgniter, WordPress ✅ Python: Django, FastAPI, Flask, Odoo, Streamlit, PyQt6 ✅ C#: ASP.NET Core, ASP.NET MVC, ⭐ AI and Machine Learning: Machine Learning, TensorFlow, OpenAI ⭐ Cloud Platforms: Google Cloud Platform (GCP), Firebase, Google Cloud Functions, Amazon Web Services (AWS) ⭐ Databases: MySql, MS SQL Server, Postgre, SQLlite, Mongo DB, ⭐ No-code tool: FlutterFlow, Bubble.io, Wix Let’s build something extraordinary. Message me to discuss your project today. less
Hire ryoheik
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Hello, I am Soshi who mainly work with frontend. I am really interested in the engineering, especially about Web development. I usually write code with JavaScript, TypeScript, HTML, CSS for frontend, and Elixir, Kotlin, Ruby for backend. I love to do some refactor rather than initial project setup, but I also like...Hello, I am Soshi who mainly work with frontend. I am really interested in the engineering, especially about Web development. I usually write code with JavaScript, TypeScript, HTML, CSS for frontend, and Elixir, Kotlin, Ruby for backend. I love to do some refactor rather than initial project setup, but I also like to setup the project. less
Hire LoveNewTechs
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Helping organizations secure their cloud infrastructure and optimize their multi-cloud strategies. I provide end-to-end cloud security services from comprehensive audits to hands-on implementation across AWS, Microsoft Azure, and Google Cloud Platform.Helping organizations secure their cloud infrastructure and optimize their multi-cloud strategies. I provide end-to-end cloud security services from comprehensive audits to hands-on implementation across AWS, Microsoft Azure, and Google Cloud Platform. less
Hire ss4net2
