Integration Engineer
Content + Source + Freshness • 13 Feb 2026 • 95% confidence
Offer value
A relevant position for those seeking to leverage integration expertise within a fintech setting, offering growth potential and varied technical challenges.
- Enhance merchants’ payment integration experiences
- Collaborate across departments for holistic solutions
- Opportunity to develop technical and consulting skills
Pros
- Opportunity to work closely with merchants and enhance their payment solutions
- Potential for skill enhancement in API integration and project management
- Engagement in cross-department collaboration
Cons
- Role dependent on the dynamic pace of the fintech sector
- Requires strong technical acumen which may narrow applicant pool
- Limited flexibility in terms of remote work
Who it's for
Early to Mid-Level • Office-based
Good fit
- Professionals with technical backgrounds in API integrations
- Individuals eager to work closely with merchants
- Candidates with excellent communication skills
Not recommended for
- Newcomers without relevant technical experience
- Individuals seeking fully remote-only roles
- Those uncomfortable with rapidly evolving technology
Motivation fit
Key skills
About the job
This is Adyen
Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.
For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.
What you’ll do
- Utilize development and programming expertise to create scalable and robust solutions for merchant integrations, while ensuring adherence to payment best practices.
- Serve as a consultative partner in specific verticals such as e-commerce, point of sale, and platforms, guiding merchants through the integration process.
- Collaborate cross-functionally with Sales, Account Managers, Product, and Engineering teams to deliver seamless merchant experiences and drive continuous improvements.
- Leverage project management and technical consulting skills to oversee high-quality project delivery, guaranteeing the technical integrity of merchant integrations.
- Provide consultation on optimizing payment solutions, including checkout experiences, authentication, omnichannel payments, and platform onboarding, while collaborating with Developers and Product Managers to enhance the platform.
Who you are
- 2+ years integrating and/or providing technical consultation when integrating with Web APIs.
- Proven ability to quickly learn new technologies, understand complex systems (APIs, databases, SDKs, etc.), and a desire to improve technical acumen.
- Ability to understand how different systems work together within a larger software environment. This includes knowledge and experience of REST or similar API protocols, and how systems communicate and share data.
- Excellent communication skills; comfortable talking to different audiences, e.g., development teams, non-technical stakeholders, and C-suite executives.
- Ability to identify and clearly communicate technical concepts and solutions to solve customer needs.
- Fluency in Japanese and English is required for this position.
- Experience in payments/fintech is advantageous.
***This role is called Implementation Engineer internally
Our Diversity, Equity and Inclusion commitments
Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you’re from, we welcome you to be your true self at Adyen.
Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application!
What’s next?
Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don’t be afraid to let us know if you need more flexibility.
This role is based out of our Tokyo office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.
