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Implementation Engineer - API Products

Nuvei

Sofia, Sofia City Province, Bulgaria Hybrid permanent

Posted: March 11, 2026

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Quick Summary

Nuvei is looking for a skilled Implementation Engineer to join our team in Sofia, Bulgaria. The ideal candidate should have experience with payment processing and API development, with a strong background in Bulgaria and a willingness to learn.

Job Description

The world of payment processing is rapidly evolving, and businesses are looking for loyal and strategic partners to help them grow.

WE ARE NUVEI. The Canadian fintech company accelerating the business of clients around the world. Nuvei's modular, flexible and scalable technology allows leading companies to accept next-gen payments, offer all payout options and benefit from card issuing, banking, risk and fraud management services. Connecting businesses to their customers in more than 200 markets, with local acquiring in 47 markets, 150 currencies and 586 alternative payment methods, Nuvei provides the technology and insights for customers and partners to succeed locally and globally with one integration.

At Nuvei, we live our core values, and we thrive on solving complex problems. We're dedicated to continually improving our product and providing relentless customer service. We are always looking for exceptional talent to join us on the journey!

The Role:

The Nuvei Implementation Engineer – API Products Plays a crucial role in contributing to the day-to-day operations and activities of the Technical Operations group. This position requires you to develop a deep knowledge of the Nuvei integration services and environment. You must develop your expertise and knowledge in Nuvei integration API products.

The primary responsibility of this position is to provide advanced technical solutions that support product delivery and new product rollouts. This includes conducting product validation and approval to ensure a high-quality client experience throughout the integration process.

Responsibilities:

• This role requires developing an in-depth understanding of all Nuvei API and integration products, including their functionality, features, and technical specifications. This expertise enables the identification of gaps and supports the creation of new processes and technical enhancements aimed at improving the client onboarding experience for both clients and Nuvei agents utilizing the platform.

• By fostering innovation, the role goes beyond routine maintenance to actively encourage the adoption of new ideas, technologies, and best practices, enhancing Nuvei’s competitive position in the market.
• Beyond supporting product delivery and new product rollouts, the Implementation Engineer is responsible for performing product sign-off within the sandbox environment. They also assist technical implementation and integration teams by providing practical, valuable support and knowledge to ensure the integration support team operates effectively.
• The Implementation Engineers delivers training to support and customer-facing technical teams, empowering them to better serve clients. Additionally, they contribute to the adoption of new technologies, tools, processes, and procedures aimed at continuously enhancing service quality.
• The Engineer assists the technical implementation, integration support and solution engineering roles, ensuring practical and helpful support and knowledge are provided to Nuvei’s client-facing teams.
• Contribute to adopting new technology, tools, processes, and procedures to enhance our services.
• Work collaboratively within the team to achieve goals and objectives, providing regular feedback on performance.
• Contribute to delivering excellent service experiences and participating in strategic programs.
• Demonstrate support for the corporate mission, core values, and long-term objectives.
• Provide regular updates and highlight any technical issues to the team.


Requirements:
• Proven experience in technical support or analysis in an international high-tech company.
• Solid familiarity with REST API and SDK, understanding technical architecture, APIs, and overall system design.
• Experience building a query in mysql and sql
• Three or more years of relevant experience in a technical role, demonstrating the ability to solve technical issues.
• Strong analytical and problem-solving abilities, with the capability to use data to support assumptions and define metrics.
• Collaborative thought partnered with the ability to work across multiple team boundaries.
• Ability to work under stress and pressure; occasional availability after working hours may be required.
• Problem-solving skills and the ability to analyze complex schemes.
• Professional level of English; proficiency in another language is an advantage.
• Hands-on technical experience in the Payments/Fintech industry (Highly desirable)


Benefits:
• A challenging job in a fast-developing, international company.
• A friendly work environment where you can thrive and develop your skills.
• Career advancement possibilities.
• Competitive remuneration package.
• Additional Health insurance incl. Dentist.
• Fully covered MultiSport card.
• Food vouchers.
• Employee discounts card, Seminars and conference tickets, Playroom, and other additional perks.

Please send your resume in English.

Nuvei is an equal-opportunity employer that celebrates collaboration and innovation and is committed to developing a diverse and inclusive workplace. The team at Nuvei is comprised of a wealth of talent, skill, and ambition. We believe that employees are happiest when they’re empowered to be their true, authentic selves. So, please come as you are. We can’t wait to meet you.

Our recruitment process may use automated tools, including AI, to support application management and candidate shortlisting

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