Application Support Engineer

episodesixlinkedin· Client Operations
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📍 Tokyo, Japan

About this role

How do you want to pay? It’s a question you’ve answered on-screen or in-person thousands of times, but your choices have always been limited. Imagine the flexibility to pay however you want – credit, debit, multiple currencies, frequent flyer miles, loyalty points, or digital payments - all on the same card or digital wallet. Sound impossible? Episode Six makes the seemingly impossible happen every day.  

We’re a global provider of API-based payment processing and wallet management infrastructure. We’re 100% cloud-native, hyper-configurable, and a “Top 10 Place to Work in Fintech.” And we’re changing how people think about payments.  

Today, we’re powering payments for one of the world’s largest banks and airlines and numerous innovative fintechs. E6 is headquartered in Austin with offices in Tokyo, Singapore, Brisbane, and London. We provide technology for clients in 24 countries on four continents. Since 2018 when we launched with HSBC, we have grown more than 10x.  

Interested in redefining what’s possible in payments? Join Episode Six today.  

What role we’re hiring for:   

We are a growing fintech organization looking to add an Application Support Engineer to our based in Tokyo, Japan! 

What you’ll be responsible for in this role: 

  • Application support specialists work closely with internal E6 technical teams and our outside clients. You act as a technical bridge, helping customers see the biggest return from their investment in E6 technology and services. To excel, you bring strong technical skills and excellent people skills.  
  • There are two distinct phases to the work of application support for each of our projects: Implementation, and post-implementation support.  
  •  During the implementation phase, you work closely with teams from our clients, converting our solution design and technical platform into a concrete build. During post-implementation support, you assist clients with incident support and planning configuration changes.  
  •  As subject matter experts for our solutions, you also act as a mentor to your teammates and our clients, either formally (such as through training) or informally.  
  • Great candidates will be proactive problem solvers and share our vision for customer success and have a focus on service improvements – such as through the development of re-usable content and recommendations.  

What experiences and skills are necessary to be successful in this role: 

The successful candidate will bring experience supporting Java-based applications in the financial space, together with strong people skills and a focus on collaborative working.  

Mandatory  

  • 5+ years supporting mission-critical Java applications 
  • 5+ years experience in financial services 
  • 3+ years in a client-facing role 
  • Experience writing basic queries to extract data from SQL & NoSQL databases 
  • Experience querying RESTful APIs using PostMan or other tools 
  • Able to participate in on-call rotation with peers for escalation support 
  • Prioritise, triage, and resolve support issues and requests  
  • Liaise across other IT Teams to achieve the desired outcome  
  • Provide accurate and professional communications to internal Customers on the progress against issues & requests  
  • Assist in the deployment of core Products, taking end-to-end ownership for the delivery of assigned work packages  
  • Identify opportunities to drive process efficiency and automation  

Desirable  

  • Familiarity with PCI DSS  
  • Experience with Mastercard/Visa card processing networks  

Knowledge & Skills   

  • Excellent personal management and organisation skills.   
  • Excellent communication skills, both verbal and written.   
  • An analytical mindset and technical ability.   
  • Ambitious and driven to exceed expectations.  
  • Ability to communicate at all levels, build positive relationships with colleagues and clients and maintain excellent customer service skills.  
  • Credible and professional.  
  • Able to challenge appropriately and present solutions.  
  • High attention to detail.  
  • Self-starting and able to work on own initiative. 

E6 is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics.   

E6 is committed to providing reasonable accommodations for qualified individuals with disabilities who may require additional assistance in engaging in our application and interview process. Please feel free to reach out to E6's Talent Acquisition Team at recruiting@episodesix.com if you need any assistance completing our application or need accommodations during your interview process.  

Frequently Asked Questions

Is the salary disclosed for the Application Support Engineer position at episodesixlinkedin?
The salary for this Application Support Engineer role at episodesixlinkedin is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Application Support Engineer position at episodesixlinkedin located?
This Application Support Engineer role at episodesixlinkedin is based in Tokyo, Japan. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Application Support Engineer at episodesixlinkedin belong to?
This Application Support Engineer position is part of the Client Operations department at episodesixlinkedin. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Application Support Engineer position at episodesixlinkedin?
Click the "Apply Now" button on this page. You will be redirected to episodesixlinkedin's official application portal hosted on greenhouse where you can submit your application directly.
When was the Application Support Engineer job at episodesixlinkedin posted?
This Application Support Engineer position at episodesixlinkedin was posted on Feb 25, 2026. Apply as soon as possible — early applications are often reviewed first.
Application Support Engineer
episodesixlinkedin
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