Software Engineer II (Kotlin) - Core Experience

Posted Yesterday
Easy Apply
Chicago, IL, USA
Hybrid
154K-200K Annually
Entry level
Fintech • Payments • Financial Services
Meet the financial technology platform helping the world’s leading businesses achieve their ambitions faster.
The Role
Develop and maintain Kotlin-based payment terminal and SDK solutions deployed across Android, Linux, and backend environments. Build payment features, integrations, and business logic for cards, mobile wallets, and QR codes. Contribute to C++ libraries, automated testing, debugging, and product stability. Collaborate with engineers, designers, and stakeholders while mentoring teammates through reviews and debugging. The role is office-first in Chicago.
Summary Generated by Built In

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.

Adyen is looking for full-time Kotlin Engineers to help us develop our in-person payments solution. We have a large and varied fleet of payment terminals and payment SDKs in the field, which we are continuously improving by adding new features and payment methods. Kotlin development plays a vital role in this effort, as your code will be deployed across our various solutions using Kotlin Multiplatform.

What you’ll do

As a Kotlin Engineer you will work on solutions for our payment terminals and payment SDKs featuring many capabilities, such as:

  • Accepting payments using credit cards and debit cards, Apple Pay or Google Pay on mobile phones or accepting payments through QR codes
  • Building and maintaining payment features for global merchants
  • Integration with a variety of cash registers using state of the art standards

You will be working on developing our main business logic in Kotlin, which will be deployed on both Android and Linux based payment terminals, and on our backend. You will also be contributing to C++ libraries that are central to our payment business logic.

Your code is tested using a variety of testing methods. These methods range from unit testing to complete product testing via automated programmable robots in order to offer a stable and feature rich solution to all of our merchants.

Who you are: 

  • A motivated, enthusiastic team player: collaborate with other engineers, product designers, and business stakeholders
  • Able to provide reliable and clearly understandable code
  • Willing to learn and improve
  • Flexible, open to new ideas
  • Have a keen eye for detail
  • Able to debug and solve problems within the Android application and collaborate effectively on cross-functional issues
  • Proactive in bringing great ideas to improve our solution
  • Enthusiastic to investigate new technical possibilities, yet able to work within existing frameworks
  • Self-disciplined and enjoy working at a fast pace while managing and prioritizing goals

Must have qualifications:

  • +5 years of experience writing code in Kotlin. 
  • Proficiency in building software for the Android platform. 
  • Experience in development of enterprise level SDKs.
  • Expert level knowledge of Kotlin, Android SDK, Jetpack Compose, Coroutines, Gradle, Dependency Injection 
  • Experience writing and maintaining a comprehensive suite of automated unit and integration tests
  • A high level of personal accountability and a blend of strong technical skills, creative problem-solving, and a collaborative spirit
  • Ability and desire to mentor and grow other engineers through code reviews, design reviews, and over-the-shoulder debugging
  • Excellent verbal and written communication skills in English. 

Good to know:

  • Experience in another non-JVM language, such as C or C++
  • Experience with building libraries used by other engineers
  • Knowledge about security best practices and standards
  • Experience working with Bluetooth-connected devices
  • Experience working in payment industry (This is a plus, not a must)
  • The annual base salary range for this role is $154,000.00 - $200,000.00; to learn more about our compensation philosophy, please click here.

This role is based out of our Chicago 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.

This role is based out of our Chicago office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.

Skills Required

  • Experience writing code in Kotlin
  • Proficiency building software for the Android platform
  • Experience developing enterprise-level SDKs
  • Expert knowledge of Kotlin, Android SDK, Jetpack Compose, Coroutines, Gradle, and dependency injection
  • Experience writing and maintaining comprehensive automated unit and integration tests
  • Strong technical skills, creative problem-solving, personal accountability, and collaborative ability
  • Ability and desire to mentor and develop engineers through code reviews, design reviews, and debugging
  • Excellent verbal and written communication skills in English
  • Experience with a non-JVM language such as C or C++
  • Experience building libraries used by other engineers
  • Knowledge of security best practices and standards
  • Experience working with Bluetooth-connected devices
  • Experience working in the payment industry

What the Team is Saying

Bhumika
Blaine
Ayesha
Tulasi
Robbie
Suzanne
Katie
Zachary
Savannah
Sam
Adam
Lindsay
Maxine
Sandeep
Rose
Chris
Harsh
Maxine
Sudhee
Sam
Sandeep
Pragad
Katie
Adam
Edward
Zachary
Sudhee
Adra
Bhumika
Harsh
Christianne
Sarah
Pragad
Ayesha
Savannah
Robbie
Madeline
Gargi
Gargi
Blaine
Zachary
Madeline
Gargi
Bhumika
Harsh
Rose
Katie
Megan
Harsh
João
Rose
Suzanne
Leslie
Harsh
Savannah
Rose
Rose
Catherine Ye
Catherine Ye

Adyen Compensation & Benefits Highlights

  • Healthcare Strength — Health insurance is employer-verified and described as strong in the U.S., with medical, dental, vision, and mental‑health support highlighted. Office pages and benefits listings reinforce comprehensive core coverage alongside everyday support like onsite food and commuter options.
  • Leave & Time Off Breadth — Unlimited PTO is explicitly listed on U.S. office pages and is characterized as generous and flexible. Usage norms are noted as team‑dependent, but the policy itself is broadly positioned as a standout.
  • Flexible Benefits — A monthly Adyen+ stipend can be directed to childcare, language courses, wellness, or home‑office needs, providing unusual personalization compared with fixed perk menus. Local office pages repeatedly call out Adyen+ as a core element of the package.

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The Company
HQ: Amsterdam
4,771 Employees
Year Founded: 2006

What We Do

Adyen (ADYEN:AMS) is the financial technology platform of choice for leading companies. By providing end-to-end payments capabilities, data-driven insights, and financial products in a single global solution, Adyen helps businesses achieve their ambitions faster. With offices around the world, Adyen works with the likes of Meta, Uber, H&M, eBay, and Microsoft.

Why Work With Us

At Adyen, everything we do is engineered for ambition. We started with payments, at a time when providers offered services based on a patchwork of systems built on outdated infrastructure. Ambition demanded more. So we set off to build a financial technology platform for the modern era, entirely in-house, from the ground up.

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Hybrid Workspace

Employees engage in a combination of remote and on-site work.

We believe that in-person collaboration is the best route to building genuine connection. We’re an office-first company that offers flexibility when needed. We trust our team to act with autonomy and make good choices.

Typical time on-site: Flexible
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