Operations & Events Coordinator

Want to use your skills to make a positive impact? Passionate about the planet and creating positive change? Then you might be the one we’re looking for. mymizu is looking for a part-time Operations & Events Coordinator to help us take our movement to the next level.

• Use your skills, knowledge and experience to create tangible change, and see the direct impact of your work on our community and society

• Enjoy a flexible work style, from FlexTime to working remotely overseas for part of the year - we encourage our team to work in a way that enables them to live their best lives.

• Gain unique insights into running an award-running social venture (2 x Minister of Environment Award, iF World Design Guide Social Impact Prize, Business Insider Circular Economy Award, etc)

• Work directly with our leadership team, recognised as industry leaders by the likes of Forbes, BBC and CNN.  

• Grow personally and professionally in a fast-paced, creative environment - including training and development opportunities.

• Join a diverse team with global experience that cares passionately about the work they do

• Meet and collaborate with a wide range of stakeholders, including global brands, startups, NPOs, schools, universities and more.

• Have fun! Meet and work with a diverse group of people, all united by a passion to change society for the better.

• We prioritise health and wellbeing - because we need to be well ourselves in order to do good.

*A note from us

We know that great people don’t always fit neatly into job descriptions. If you’re excited by mymizu/SIJ’s mission and think you could contribute - even if your experience looks a little different - please do apply. We’re open to shaping this role around the right person and exploring creative ways of working together.

• Location: Hybrid (Remote-first with in-person commitments 1–4 times a month). Applicants must currently reside in the Greater Tokyo Area (Japan) and be able to attend occasional team gatherings and events in person.

• Time Commitment: 10~20 hours per week (exact scope of role will depend on the successful candidate’s skills, experience and availability, and will be decided in consultation with them)

• Contract Type: Freelance

• Start Date: ASAP (flexible)

We’re looking for an Operations & Events Coordinator to keep our projects, events, and campaigns running smoothly - from planning through to delivery.

You’ll help to coordinate events and activities across mymizu and SIJ, support our day-to-day operations, and create simple, engaging content (social posts, blogs etc) that shares our impact and community stories. This role is perfect for someone who loves organisation, communication, and bringing meaningful ideas to life through well-run experiences.

Project & Event Coordination

• Plan and coordinate logistics for programs and events (e.g. workshops, changemaker gatherings, beach cleans etc).

• Liaise with venues, collaborators, suppliers, and participants to ensure smooth delivery.

• Support event communications (e.g. emails, announcements, post-event follow-ups etc).

Operational & Administrative Support

• Day-to-day administrative tasks to support the running of the mymizu platform, including basic database management and analytics reporting (training provided).

• Prepare and manage payments, invoices, and schedules.

• Support grant and project reporting (collect data, photos, participant feedback, and metrics etc).

• Maintain and improve internal systems (e.g. event templates, checklists, and shared calendars).

Collaboration & Communications

• Share event and project updates with the Comms team for storytelling and reporting.

• Work closely with other team members to ensure deliverables for key projects and campaigns are on track.

• Liaise with diverse partners and program participants to ensure objectives are met.
  

*Above is a list of responsibilities for our ideal candidate, but the exact job description will depend on the candidate’s strengths and experience. We are a small, nimble organisation dedicated to constantly pushing boundaries, so the role will likely change and evolve as new opportunities arise. Being adaptable, having a growth mindset, and a love for innovation will ensure you flourish!

You are:

• Fluent and able to communicate professionally in Japanese (writing, reading, speaking, listening), and have at least business-level English.

• Organised, proactive, and detail-oriented.

• Comfortable juggling multiple projects and keeping timelines on track.

• Event coordination or project management experience.

• Positive and calm under pressure, with great communication skills.

• Interested in sustainability, community, or creative projects.

• Able to work both independently and collaboratively in a small, fast-paced team.

• Flexible and open to potential changes in your responsibilities as the team evolves.

• Respectful, and also happy to challenge accepted wisdom / how things are done in order to achieve shared goals.

Desirable Skills & Experience

• Comfortable with Google Workspace (Docs, Sheets, Calendar etc).

• Design or content creation skills (Canva, Notion, etc.) are a plus but not essential.

You also have:

• Curiosity to learn, grow and enjoy new challenges and experiences

• Passion for mymizu’s mission and having a positive social and environmental impact through your work

• The ability to work in Japan (we are currently unable to sponsor work visas)

• Flexible hybrid working (must reside in Japan; ideally based in the Greater Tokyo Area (首都圏)).

• Hands-on experience working with diverse and interesting stakeholders across multiple impact projects and networks.

• Mentorship and exposure to Japan’s social innovation and sustainability ecosystem (with some international collaborations too!).

• Potential to grow into a more senior operations or program management role.

Remuneration Guidelines 

• Hourly Rate: From 1,250~/ hour (depending on experience)

*Indicative ranges for hourly rate, dependent on the candidate’s experience and with potential for growth based on results.

Working Hours & Style

• FlexTime (with core hours agreed in order to facilitate regular internal/external meetings)

• Largely remote, with some in-person time

• Flexibility to work remotely overseas for up to 2 months a year, if desired

**Deadline = 30th November 2025**

We review applications on a rolling basis and will contact shortlisted candidates for an interview (in Japanese and English).
*We regret that we can only reply to successful applicants due to the expected volume of applications.

We welcome applicants of all backgrounds who are passionate about sustainability and collaboration in Japan.
We look forward to hearing from you! 🌱

mymizu is Japan’s first free water refill app and a co-created movement helping people live more sustainably through the power of technology and community. The mymizu platform connects over half a million users with over 14,000 refill stations across Japan and 200,000 globally, and has been featured by global media, including CNN, NHK, and VOGUE. Website: www.mymizu.co. 

Social Innovation Japan (SIJ) is the organisation behind mymizu - a platform for social and environmental impact that co-creates programs, products, and partnerships tackling some of the biggest challenges of our time. Aside from mymizu, our projects include programs to empower changemakers, unconventional leadership development programs with a focus on sustainable innovation, and collaborations across sustainability, innovation, and leadership development. Website: www.socialinnovationjapan.com

Mission

Empowering people and organisations to co-create solutions for a just and sustainable future.

Vision

A world in which everyone can lead positive change with compassion, creativity, and driven by community.

Values

At SIJ, we care as much about how we work as what we do. Our values are the foundation for every project, partnership, and conversation:

• 🌍 Purpose-Driven Action: We tackle root causes, not symptoms.

• 🤝 Collaboration Over Competition: We co-create solutions with diverse partners and communities, striving for shared success over zero-sum thinking.

• 🌱 Regenerative & Compassionate Leadership: We lead with empathy and responsibility for people and the planet.

• ❓ Curiosity & Lifelong Learning: We stay open, humble, and hungry to learn.

• 🔍 Integrity in All We Do: We make decisions rooted in honesty, transparency, and respect, even when it’s hard.

• 💛 Joyful Commitment to Impact: We take our work seriously, but not ourselves. Play, creativity, and humour are part of how we connect and create.

If these values resonate with you, you’ll likely thrive in our team!

Working at Social Innovation Japan / mymizu is an exciting opportunity to build your career in social impact, and directly see the positive impact of your efforts. 

We are a team of challengers and collaborative problem solvers who break new ground every day. We don’t shy away from big problems, and are always developing exciting partnerships with major brands, schools, universities and governments for impact.

Every team member - whether full-time, part-time or volunteer - brings their own unique story, background and perspective, and we cherish that diversity as an organisation. Since our establishment in 2017, we have created a flexible, safe working environment for people from 20+ countries and ensure that health, wellbeing and personal development are top priorities.  

Let’s work together for a better tomorrow 🔥