67,474 Kotlin Engineer jobs in the United States

• As a developer, you will be responsible for end-to-end delivery of your software from inception to production, working on a mixture of green- and brown-field projects, learning from, and contributing to your peer group.
• As a Senior Software Engineer, you will be applying your experience and earned acumen to guide the shape of our platform and help mentor and guide the team.

• Bachelor's or master's degree in computer science, computer engineering, software engineering, or other technical discipline, or equivalent work experience
• Understanding of service-based architectures
• Understanding of web applications and use APIs to power them
• Proven experience with live applications and production environments
• 5+ years of software development experience with strong knowledge in Java/JVM/Kotlin, Rest APIs and exposure to alternate JVM languages

• Able to demonstrate an understanding of computer science fundamentals (time and space complexity)
• Able to apply fundamentals to solve real problems (as will be done in the coding interview)
• Demonstrable understanding of modern application architecture and scaling practice
• Comfortable working with a geographically distributed team
• Understanding fundamentals of databases and querying performance (postgres)

• Comfortable working in Kotlin and applying modern kotlin styles. We can teach this if they are comfortable with either Python or Java

• Creativity & Problem-Solving
• Adaptability & Flexibility
• Aptitude for technology; curiosity, passion and startup mindset
• Applied statistics skills: distributions, statistical testing, regression analysis
• Innovative thinking
• Java/Kotlin/JVM
• Databases: Postgres, MongoDB, Redis
• Source Code Control: Working experience using GitHub, Bitbucket, RhodeCode
• Production monitoring and logging tools (i.e. CloudWatch, Prometheus, OpenSearch/Elasticsearch, ELF)
• Container orchestration: Docker, Kubernetes, GCP GKE, AWS ECS, AWS EKS
• CI/CD platforms (we are using GitHub Actions)
• Other: Git, Gitflow, Jira, Gitlab, Trello, Scrum
• Frameworks: Ktor, Spring

• Full stack experience and willingness to dive into other levels of web applications
• Web technologies - An in-depth knowledge and experience working with web technologies such as JavaScript, HTML, CSS, TypeScript, C#, SASS, Stylus, Stylus, Python, and LESS.
• React tools - proficiency in Enzyme, Webpack, Redux, and Flux.
• Web frameworks - Proven expertise in different frameworks like React Native, AngularJS, Angular2, VueJS, SocketIO, Backbone, KnockoutJS, Svelte, and Bootstrap.
• Open-source Libraries - Demonstrable experience with JQuery, MomentJS, html5sql.js, RequireJS, and Loads.
• Software testing tools - A good working knowledge in testing codes using Mocha, Jest, Unit-tests, TDD, Karma, VCS, and Selenium (base).
• Databases - A familiarity of working with different databases such as MySQL, NoSQL(e.g., MongoDB), PostgreSQL, Redis is recommended.
• Cloud management - A strong background in different cloud platforms like Amazon AWS, Microsoft Azure, OpenStack Apache, and Google Cloud Platform

Description

At American Express, our culture is built on a 175-year history of innovation, shared values and Leadership Behaviors, and an unwavering commitment to back our customers, communities, and colleagues. As part of Team Amex, you'll experience this powerful backing with comprehensive support for your holistic well-being and many opportunities to learn new skills, develop as a leader, and grow your career.

Here, your voice and ideas matter, your work makes an impact, and together, you will help us define the future of American Express.The Payments Platform is responsible for clearing more than 500 million transactions a year globally, with a value of over 1 trillion dollars (Yep! that is not a typo, trillion with a T). This is a mission critical endeavor, with plenty of interesting engineering challenges in a space that is ripe for innovation. Open banking, ISO 20022, real-time/instant payments, and modern cross-border schemes are revolutionizing clearing and settlement. Our Platform is becoming the gateway to existing and emerging global payment rails; and we are using an innovative integration stack to "speak" the many schemes and formats. Beyond the transactional aspect, our differentiating value is contextual. A rich data backbone and deep integration with enterprise data sources allow us to offer powerful omnichannel APIs and extension points used by developers that build customer facing experiences such as P2P payments, loans, bill-pay, commercial cross border payments, AP automation, and many more.

We are beginning our journey of transforming the technical landscape in our teams to use a microservice architecture and are looking to bolster our technical talent by acquiring full-stack developers, using technologies such as Java, Kotlin, Spring, and React.

Responsibilities:

• As a developer, you will be responsible for end-to-end delivery of your software from inception to production, working on a mixture of green- and brown-field projects, learning from, and contributing to your peer group.

Qualifications:

• Bachelor's or master's degree in computer science, computer engineering, software engineering, or other technical discipline, or equivalent work experience

• Push Payments Expertise

• 5 years of software development experience with strong knowledge in Java, Rest APIs, and exposure to alternate JVM languages: Kotlin, Clojure

• Technical Skills: Python, Scala, Node.js, Golang, Java, JavaScript, C , C#,Kotlin

• Database: MySQL, MongoDB, Redis, Postgres

• Search & log: Solr, Fruendt, Prometheus

• Container orchestration: Kubernetes, GKE, Docker

• CI/CD: Jenkins, SonarQube

• Cloud services: Big Query, DataPro, Dataflow, Cloud SQL, Cloud Composer, AWS EMR

• Other: Git, Gitflow, Jira, Bitbucket, Gitlab, Trello, Scrum

• Frameworks: Quarkus, Ktor

• NoSQL databases: MongoDB, Cassandra, HBase, Couchbase

• Applied statistics skills: distributions, statistical testing, regression analysis

• Creativity & Problem-Solving Skills

• Adaptability & Flexibility

• Aptitude for technology; curiosity, passion, and startup mindset

• Innovative thinking

Other Skills (that will be a plus):

• Web technologies - An in-depth knowledge and experience working with web technologies such as JavaScript, HTML, CSS, TypeScript, C#, SASS, Stylus, Stylus, Python, and LESS.

• React tools - Strong proficiency in Enzyme, Webpack, Redux, and Flux.

• Web frameworks - Proven expertise in different frameworks like React Native, AngularJS, Angular2, VueJS, SocketIO, Backbone, KnockoutJS, Svelte, and Bootstrap.

• Open-source Libraries - Demonstrable experience with jQuery, MomentJS, html5sql.js, RequireJS, and Loads.

• Software testing tools - A good working knowledge in testing codes using Mocha, Jest, Unit-tests, TDD, Karma, VCS, and Selenium (base).

• Databases - A familiarity of working with different databases such as MySQL, NoSQL (e.g., MongoDB), PostgreSQL, Redis is recommended.

• Code repositories - Working experience using GitHub, Bitbucket, Rhode Code, and devZing Subversion

• Cloud management - A strong background in different cloud platforms like Amazon AWS, Microsoft Azure, OpenStack Apache, and Google Cloud Platform

Qualifications

Salary Range: $110,000.00 to $190,000.00 annually bonus benefits

The above represents the expected salary range for this job requisition. Ultimately, in determining your pay, we'll consider your location, experience, and other job-related factors.

We back you with benefits that support your holistic well-being so you can be and deliver your best. This means caring for you and your loved ones' physical, financial, and mental health, as well as providing the flexibility you need to thrive personally and professionally:

• Competitive base salaries

• Bonus incentives

• 6% Company Match on retirement savings plan

• Free financial coaching and financial well-being support

• Comprehensive medical, dental, vision, life insurance, and disability benefits

• Flexible working model with hybrid, onsite or virtual arrangements depending on role and business need

• 20 weeks paid parental leave for all parents, regardless of gender, offered for pregnancy, adoption or surrogacy

• Free access to global on-site wellness centers staffed with nurses and doctors (depending on location)

• Free and confidential counseling support through our Healthy Minds program

• Career development and training opportunities

For a full list of Team Amex benefits, visit our Colleague Benefits Site .

American Express is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran status, disability status, age, or any other status protected by law. American Express will consider for employment all qualified applicants, including those with arrest or conviction records, in accordance with the requirements of applicable state and local laws, including, but not limited to, the California Fair Chance Act, the Los Angeles County Fair Chance Ordinance for Employers, and the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. For positions covered by federal and/or state banking regulations, American Express will comply with such regulations as it relates to the consideration of applicants with criminal convictions.

We back our colleagues with the support they need to thrive, professionally and personally. That's why we have Amex Flex, our enterprise working model that provides greater flexibility to colleagues while ensuring we preserve the important aspects of our unique in-person culture. Depending on role and business needs, colleagues will either work onsite, in a hybrid model (combination of in-office and virtual days) or fully virtually.

US Job Seekers - Click to view the " Know Your Rights " poster. If the link does not work, you may access the poster by copying and pasting the following URL in a new browser window:

Employment eligibility to work with American Express in the United States is required as the company will not pursue visa sponsorship for these positions

Job: Technology

Primary Location: US-Arizona-Phoenix

Schedule Full-time

Req ID: 25014595

• Lead the design, development, testing, documentation, and deployment of high-quality, scalable Kotlin Multiplatform code supporting Android, iOS, and web experiences.
• Drive the end-to-end technical execution of complex features and systems-from ideation and architecture through release, post-launch refinement, and iteration.
• Shape and evolve the shared architecture and platform strategy to deliver performant, reusable business logic across all supported platforms.
• Develop a deep understanding of the iCasino product and industry landscape to influence technical direction, inform strategy, and align with long-term business goals.
• Define, establish, and uphold engineering principles, best practices, and coding standards-particularly within a mobile & multiplatform environment.
• Collaborate closely with product, design, backend, and platform teams to deliver innovative solutions that balance user needs with technical scalability.
• Champion operational excellence, including observability, reliability, testability, and developer documentation, setting the standard for engineering quality.
• Provide technical leadership during incident response, participate in the on-call rotation, and drive resolution of production issues with urgency and ownership.
• Lead and contribute to team planning, sprint execution, design reviews, and architecture discussions, bringing innovative and inclusive approaches to technical challenges.
• Conduct and elevate code reviews, promote continuous improvement in development workflows, and ensure strong test coverage-especially in shared KMP code.
• Proactively identify and remove technical and organizational roadblocks to maintain momentum across complex, multi-team initiatives.
• Mentor and coach engineers across all levels and platforms, cultivating a strong, inclusive, and growth-minded engineering culture.
• Be open to occasional travel to Fanatics offices or events for planning, collaboration, and team-building activities.

• 7+ years of experience building scalable mobile applications, with deep expertise in Kotlin
• Production experience with Kotlin Multiplatform (KMP), with a clear understanding of its strengths, limitations, and evolving ecosystem.
• Strong knowledge of Android development, including architecture patterns (e.g., MVI), Jetpack Compose, and dependency injection frameworks.
• Experience working across mobile platforms and collaborating closely with iOS engineers and backend services.
• Demonstrated ability to lead technical decisions and drive best practices in a complex, multiplatform environment.
• Excellent communication skills, with the ability to clearly convey complex technical concepts to engineers, stakeholders, and leadership.
• Proven experience in Agile/SCRUM environments, with a track record of driving process improvements and delivering value iteratively.
• Ability to thrive in a fast-paced, high-growth environment with evolving priorities and cross-functional collaboration.
• A team-first mentality, a commitment to fostering an inclusive environment, and a passion for continual improvement.

• Familiarity with Material Design principles, ideally Material 3.
• Experience designing shared client APIs and integrating with backend services.
• Exposure to Swift, Java, or React in production or collaborative settings.
• Passion for platform engineering, developer experience, and cross-platform tooling.
• Strong focus on code reuse, testability, and performance in multiplatform environments.

• Lead architecture and design of features, from conception to launch
• Own and drive technical strategy and excellence across the Android platform
• Collaborate with product designers, product managers, and other software engineers to deliver excellent user experiences with high quality
• Work with team members to investigate design approaches, prototype technology and evaluate technical feasibility
• Make critical engineering decisions considering risks, trade offs, and alternative solutions
• Lead investigations into production issues and bugs, including occasional on-call responsibilities.
• Identify tech debt before it becomes an issue and work with team to prioritize it appropriately
• Mentor other mobile engineers and improve engineering processes to increase team effectiveness

• 5+ years experience architecting, developing, releasing, and maintaining customer-facing Android applications
• Proficiency with Kotlin, Android Studio, Gradle, and Dagger
• Experience writing testable code and developing comprehensive test suites
• Experience with REST architecture
• A full-stack mindset, including an understanding of server-side rendering (SSR) architectures and custom DSLs
• Knowledge full software development life cycle best practices, including coding standards, code reviews, source control management, continuous deployments, testing and operations
• Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
• Experience managing app releases, deployments, and optimization strategies on the Google Play Store
• Strong problem solving and analytical/reasoning skills
• Excellent verbal and written communication skills

• Proficiency in GraphQL, including schema design, querying, mutations, and integration with Android applications
• Experience with automated mobile build / release pipelines, multi-module application development
• Familiarity with Kotlin Multiplatform for cross-platform mobile development
• Experience implementing Health Connect or Google Fit integrations
• Experience with Swift, sufficient to build out Swift UI features when required
• Experience implementing live chat and video functionality in Android applications

• Hybrid work schedule with weekly lunches and stocked fridges
• 18 vacation days, 9 company holidays, 5 sick days, and 2 personal days
• Stock options for every full-time employee
• Paid parental leave
• 401k benefit
• Commuter Benefits
• Competitive health, dental, and vision insurance options

Your Impact

As a Software Engineer for Lowe's, you'll be transforming business needs into innovative software solutions. You will use a variety of computing environments to help us develop and deploy logical applications, from building intuitive UI to developing microservices with cloud-native technologies. The creative solutions you build will be able to impact thousands of our customers and associates daily. Specifically, this Server-side Engineer will be part of Mobile Engineering team, working on Mobile Service Layer used by the Lowes Mobile App.

Work with a Winning Team

As part of a Fortune 50 company and retail leader, your work can change an entire industry. Our CEO is a forward-thinker when it comes to tech, and with one of Forbes Top 50 CIOs leading the charge, you can come to work knowing you'll have access to the data, tools, and support that few other companies can offer. We also know what it takes to create an inclusive culture that supports you.

Our teams are structured around the engineer, giving you the support you need to do your best work. Since we've been in business for over 100 years, we've built an excellent track record of growth and success. There's peace of mind knowing you have the stability and resources you need to focus on solving tough challenges. And as you solve these challenges, know you'll be surrounded by supportive associates with curious minds who listen to you, respect you, and recognize your hard work.

Innovate in Charlotte

This position is based at our on-site Tech Hub in Charlotte, North Carolina. Lowe's Tech Hub is an ultramodern work environment, complete with cutting-edge technology, collaborative workspaces, an on-site barista and Zen Garden, and other perks to enhance your work experience.

Key Responsibilities

• Partners with product teams to translate business requirements into logical program designs and software solutions, conducting implementation and maintenance of complex enterprise applications with occasional guidance from senior colleagues.

• Develops, configures, or modifies integrated business and/or enterprise application solutions within various computing environments by designing and coding component-based applications using various programming languages.

• Tests applications using test-driven and behavior-driven development frameworks, ensuring solution integrity, testability, maintainability, and efficiency.

• Conducts root cause analysis of issues, participates in code reviews to identify gaps, and solves difficult technical problems to optimize application performance.

• Implements continuous integration/continuous delivery processes to ensure quality and efficiency in the development cycle using DevOps automation processes and tools.

• Ideates, builds, and publishes reusable libraries to improve cross-team productivity while ensuring successful deployment of released applications.

Minimum Qualifications

• 2 years of experience in software development or a related field

• 2 years of experience working on project(s) involving the implementation of solutions applying development life cycles (SDLC) through iterative agile development

• 2 years of experience working with any of the following: frontend technologies (user interface/user experience), middleware (microservices and application programming interfaces), database technologies, or DevOps

• Bachelor's degree in computer science, computer information systems, or related field (or equivalent work experience in lieu of degree)

Preferred Skills/Experience

*We encourage you to apply even if you do not have all the preferred skills or experience. *

• 2 years of IT experience developing and implementing business systems within an organization

• 2 years of experience working in cloud platforms such as GCP, AWS, or Azure

• 2 years of experience with RESTful APIs and microservices architecture using Spring boot or similar technologies such as Micronaut, Quarkus, or Dropwizard.

• Experience with Kotlin language and its application in backend development

• Experience with containerization technologies like Kubernetes and Docker

• Experience with application and integration middleware.

• Experience to consume and provide APIs.

Benefits

• 401k with up to 4.25% match

• Discounted Employee Stock Purchase Plan (15% discount of strike price)

• Tuition-Free Education

• 10-Week Maternity/Parental Leave

• 10% Associate Discount

For information about our benefit programs and eligibility, please visit .

About Lowe's

Lowe's Companies, Inc. (NYSE: LOW) is a FORTUNE® 50 home improvement company serving approximately 16 million customer transactions a week in the United States. With total fiscal year 2024 sales of more than $83 billion, Lowe's operates over 1,700 home improvement stores and employs approximately 300,000 associates. Based in Mooresville, N.C., Lowe's supports the communities it serves through programs focused on creating safe, affordable housing, improving community spaces, helping to develop the next generation of skilled trade experts and providing disaster relief to communities in need. For more information, visit Lowes.com .

Lowe's is an equal opportunity employer and administers all personnel practices without regard to race, color, religious creed, sex, gender, age, ancestry, national origin, mental or physical disability or medical condition, sexual orientation, gender identity or expression, marital status, military or veteran status, genetic information, or any other category protected under federal, state, or local law.

Pay Range: $5,300.00 - 143,100.00 annually Starting rate of pay may vary based on factors including, but not limited to, position offered, location, education, training, and/or experience. For information regarding our benefit programs and eligibility, please visit

Sr. Backend Engineer (Kotlin/JVM)
New York, NY (Highly prefer local already - Hybrid)
Contract-to-hire
• Modern technology stack
• Modern java and JVM - Kotlin (Maven, Gradle)
• Python
• Needs modern Java
• Basic understanding of databases
• Postgres aurora
• Writing code for db queries
• Db performance, ddl