Senior Software Engineer (Java) - Bank Payments

Adyen

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.   Senior Software Engineer, Card Payments Team The Card Payments Airlines team is dedicated to processing high-volume transactions for our global airline partners via major card networks like Visa, MasterCard, and American Express. This team is pioneering the next generation of payment solutions tailored for the unique demands of the airline industry. Our systems are mission-critical, handling millions of transactions daily. As a Senior Software Engineer, you will be responsible for leading the design and architecture of the industry’s most scalable and reliable airline processing platform. This senior role also involves coaching and guiding team members and collaborating closely with product management to define, scope, and deliver on our merchant-facing roadmap.   What you’ll do * Bring your own point of view on best engineering practices.  * Collaborate across teams and time zones to get projects over the finish line. * Lead complex technical projects from requirements analysis through design, implementation, testing and launch into production. * Be hands on and contribute to the implementation, but at the same time offer technical guidance and mentoring to other engineers. * Identify and improve parts of the platform to make it more robust and scalable. * Your code will be used at scale and you are expected to think in that mindset when building features. * We launch fast and iterate often. Concretely, this means that within your first few weeks, you will bring live functionalities that impact many merchants and shoppers.   Who you are * You have at least 8 years of professional experience as an engineer and are currently working as a Senior Software Engineer or at a similar level * You have great communication skills and the ability to articulate complex technical concepts in front of different stakeholders * You are flexible, a team player, someone with an eye for detail * Familiar with complex large scale distributed systems * Open to some domestic and international travel   Required technical qualifications * Demonstrated knowledge of building Java based web services (RESTful, SOAP) * Experienced in designing performant database models in PostgreSQL or other relational databases * Knowledgeable of various software architecture paradigms such as event-driven or message queueing systems   The annual base salary range for this role is $180,000 - $243,000; to learn more about our compensation philosophy, please click here.   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. Don’t be afraid to let us know if you need more flexibility. Adyen is an equal opportunity employer. We do not discriminate based on race, color, ethnicity, ancestry, national origin, religion, sex, gender, gender identity, gender expression, sexual orientation, age, disability, veteran status, genetic information, marital status or any legally protected status. All your information will be kept confidential according to EEO guidelines. This role is based out of our Chicago office. We have a hybrid workplace and value in-person collaboration; we do not offer remote-only roles.  You must be work authorized in the United States without the need for new visa sponsorship. The company can support visa transfers but will not sponsor individuals for H-1B CAP applications.

Mynt

About Mynt Mynt is an all-in-one corporate card and spend management platform on a mission to reinvent business banking. By combining smart software with cards and payments infrastructure, we remove manual, time-consuming admin from how companies manage spending. We’re growing fast across the Nordics and have secured significant funding to support our continued expansion in Sweden and internationally. Mynt is a tech-first, product-driven company where teams are empowered to solve real problems and build things that matter. We’re a licensed e-money institution, card issuer, and payment processor, operating under the supervision of the Swedish Financial Supervisory Authority. Through strong partnerships with leading players such as Fortnox and Nordea — and many more on the way — our solutions are now live across all Nordic countries. Joining Mynt means helping shape both a category-defining product and a company that’s still early in its journey. With 100+ colleagues (and growing), we’re building teams that value ownership, momentum, and customer impact. About the Role We are looking for talented developers who are passionate about building high-quality software and enjoy working in an entrepreneurial environment where you can truly influence both the product and the company’s direction. At Mynt, you will work in a modern codebase using the latest technologies, with a high level of ownership and responsibility from day one. You will join an ambitious and experienced team with backgrounds in scale-ups, finance, and consulting. We work in agile sprints, combining close collaboration with a strong sense of individual autonomy. As a Backend Developer, you will focus on building robust business logic and scalable APIs for both web and mobile applications, working closely with product managers in each domain. Our development process is rooted in agile principles, clean code, and CI/CD. Testing, TDD, and automation are integral parts of how we ensure quality and maintain speed. You will also contribute to architectural decisions and have the opportunity to help shape and build new products from an early stage, using technologies such as Java, MongoDB, MySQL, Redis, AWS, Docker, and CircleCI. Qualifications * Bachelor’s degree in Engineering, Computer Science, or equivalent experience * At least 1+ years of experience in backend development using Java * Ability to write clean, maintainable, and well-documented code * A collaborative mindset with a passion for solving problems as part of a team * Fluent in Swedish and English What we can offer you * Be part of an amazing team in a fast-growing scale-up. * Work closely with a fun, high-performing team. * Enjoy a flexible working environment with a great office location in central Stockholm. * Shape your own development and responsibilities based on your passion and interest. The position will be filled as soon as we find a suitable candidate. Please reach out to us as soon as possible if you believe this for you!

Adyen

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Facebook, 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. The people of Adyen 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. Data Extraction and Accessibility  The Data Extraction and Accessibility team is responsible for building and maintaining the centralized reporting framework used across Adyen. This includes securing and managing data access from both operational systems and the big data platform, transforming data into the required formats, and ensuring its secure delivery to our merchants. What you’ll do: * Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production. * Be hands-on and contribute to the implementation. * Identify and improve parts of the platform to make it more robust and scalable. * Bring your own point of view on best engineering practices.  * Your code will be used at scale and you are expected to think in that mindset when building features. * We launch fast and iterate often. Concretely, this means that within your first few weeks, you will bring live functionalities that impact many merchants and shoppers.  * Build APIs and tooling according to quality principles such as performance and code quality. * Collaborate across teams and time zones to get projects over the finish line. Who you are: * Familiar with complex large scale distributed systems. * You have experience with Java, Web Services, REST Apis, Webhooks and SQL/PostgreSql. * You have a good understanding of Software Engineering practices and interest in product knowledge. * You enjoy working in a cross-functional team with roles like Data Science, Frontend, and Product. * You value involving other people to hear different perspectives. * You have an experimental mindset with a launch fast and iterate mentality. Minimum qualifications: * 7+ years of experience in software development industry in a fast paced tech environment * Full professional proficiency in English * This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles. 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.