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We are looking for an experienced AI / Full-Stack Developer to design, develop, and implement scalable, intelligent applications that combine modern web technologies with Artificial Intelligence and Machine Learning capabilities. The role focuses on end-to-end application development, AI integration, backend services, and user-friendly interfaces to support business automation, advanced analytics, and data-driven decision-making. Working closely with solution architects, data engineers, and business stakeholders, the developer ensures seamless integration between AI services, enterprise platforms, and modern applications while maintaining high standards of performance, security, and scalability.
Key Responsibilities
Design, develop, and maintain full-stack applications integrating AI/ML capabilities with modern web technologies and enterprise systems.
Build responsive and user-friendly front-end applications using frameworks such as React, Angular, or Vue.js.
Develop scalable back-end services, APIs, and application logic using Python, Node.js, or similar technologies.
Integrate AI/ML models, Large Language Models (LLMs), and generative AI services into business applications and workflows.
Develop and implement AI-powered functionalities, including intelligent automation, predictive analytics, and data-driven applications.
Design and maintain REST APIs, microservices, and integration components connecting applications with enterprise data platforms.
Collaborate with data engineers and AI specialists to integrate machine learning models, data pipelines, and external AI services.
Implement authentication, authorization, data protection, and application security best practices.
Optimize application performance, scalability, and reliability across front-end, back-end, and AI components.
Support application testing, debugging, deployment, technical documentation, and continuous improvement initiatives.
Strong hands-on experience in full-stack software development , including front-end and back-end application development.
Proficiency in Python, JavaScript, or TypeScript , with experience using modern development frameworks.
Experience developing front-end applications using React, Angular, Vue.js, or similar technologies.
Strong knowledge of back-end development frameworks such as FastAPI, Django, Flask, Node.js, or Express.
Experience integrating AI/ML models, LLMs, or generative AI services into enterprise applications.
Familiarity with AI frameworks and services such as LangChain, OpenAI APIs, Azure OpenAI, or similar technologies.
Solid understanding of REST APIs, microservices architecture, databases, and system integration.
Experience working with SQL and NoSQL databases, data processing, and enterprise data platforms.
Knowledge of cloud platforms such as Microsoft Azure, AWS, Google Cloud, or SAP BTP.
Understanding of CI/CD pipelines, containerization technologies such as Docker, and modern software development practices.
Strong analytical, problem-solving, and communication skills, with the ability to work effectively across technical and business teams.
Offered benefits Great package: We provide a competitive salary and benefits package, along with an outstanding work environment that fosters long-term career development opportunities.
People Focus: Unite with the best global talent in life sciences, empowered to grow and collaborate in a vibrant environment.
Truly Global: Join a truly global organization where mutual support, teamwork, and diversity drive our collective success.
Grow Your Skills: Join regular workshops, academies and trainings - inhouse workshops und training (optional) Invest in Your Learning: Access CHF 1,500 (approx. 280k JPY) annually for professional development Corporate culture and work life balance Flat hierarchies: Speak your mind and grow with close mentoring by senior leaders Remote workstyle: Work from anywhere in Japan (if client project allows) Working location: Temp office in Shinbashi/Client or Project site Work flex: Enjoy 25 days of flexibility to work from your preferred global location (under client’s permission) Annual vacations: of up to 20 days (depending on seniority) Time Off: Take the time you need to recharge and maintain a healthy work-life balance, with flexibility beyond standard holiday allowances.
Connect as a Team: We use our team’s integration budget to meet, collaborate, and bond Celebrate Your Birthday: Receive a special gift from Fusion on your birthday Anniversary bonus program: Receive substantial bonuses on special work anniversaries (5, 10, 15 years) Bonus programs: 10% annual performance bonus, based on company KPIs.
Refer Talent reward program (up to Director) : Offers bonuses if your referral is hired by Fusion Truly Global: Join a truly global organization where mutual support, teamwork, and diversity drive our collective success.
Empowering Global Talent in Life Sciences Transformation
Fusion Consulting is a globally leading Business and IT boutique consultancy specialized in the Life Sciences industry, partnering with leading companies in pharma, healthcare, and animal health.
With over 450 employees and 25 offices worldwide, our mission is to revolutionize our clients' business transformation challenges and set new industry standards through innovative solutions.
Focused on S4HANA, Data & Cloud, and innovative technologies, Fusion Consulting brings unparalleled expertise and commitment to excellence to every project we undertake.
Grounded in our commitment to fast and intelligent decision-making, our client-first and open-hearted approach defines our ethos. With unwavering support and an entrepreneurial spirit, our global teamwork transcends boundaries and turns shared visions into reality.
This role will be based in Tokyo, Japan remotely and be able to travel to Yamagata upon the client’s requests. We are looking for a potential candidate who can lead the workstream at the client's side as well as large projects in the near future.
At Fusion, we unite entrepreneurial minds from around the globe to develop and implement game-changing solutions that build lasting relationships with our clients.
As we are still in the exciting early stages of building our presence in Japan, joining Fusion means you won’t just be another consultant - you will be an initiating member helping shape our Japan growth story locally. You will have the opportunity to work on projects with truly global clients, where diverse perspectives and cross-border collaboration are the norm. You will be acting as the bridge between the global English-speaking business and potentially Japanese speaking local operations. With this comes a high level of accountability and ownership, empowering you to directly influence outcomes and see the tangible impact of your work.