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Senior Kotlin Developer Jobs in Bothell, WA (NOW HIRING)

CourtAvenue

Senior Fullstack Software Engineer

Seattle, WA · Remote

$115K - $145K/yr

We are in search of a Senior Full-Stack Software Engineer to join our Gigantic Playground team. In ... and Kotlin. * Experience with advanced DevOps, Cloud CI/CD, Ansible, and Exensice Container ...

Level

Senior Full-Stack WebApp Engineer

Bellevue, WA · On-site

... developer tooling. • Define and own reliability targets (SLOs/SLIs) for the services you own ... Kotlin or Java on the JVM (Kotlin is Level's primary backend language) or TypeScript for shared ...

Airwallex

Senior Software Engineer, Productivity

Seattle, WA · On-site

$139K - $183K/yr

Responsibilities : • Enhance developer productivity with AI: Utilize AI and machine learning to ... Go, Kotlin, Rust, or Node.js and their corresponding frameworks. • 8+ years of professional ...

QXO

Senior Software Engineer, Backend

Seattle, WA · On-site

$138K - $235K/yr

As a Senior Software Engineer on the QXO eCommerce team, you will lead the design, development, and ... Kotlin, Go, etc.) * Experience with modern front-end technologies and frameworks such as React ...

Hiya

Senior Software Engineer

Seattle, WA · On-site

$139K - $183K/yr

Familiarity with DevOps basics : containers (Docker), deployment workflows, and reading ... navigate a Kotlin or Swift codebase and make focused changes * Strong written and verbal ...

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Senior Kotlin Developer information

See Bothell, WA salary details

$11

$68

$90

How much do senior kotlin developer jobs pay per hour?

As of Aug 7, 2026, the average hourly pay for senior kotlin developer in Bothell, WA is $68.23, according to ZipRecruiter salary data. Most workers in this role earn between $62.36 and $78.99 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior Kotlin developer?

To thrive as a Senior Kotlin Developer, you need deep expertise in Kotlin programming, object-oriented design, and software development principles, often supported by a bachelor's degree in computer science or a related field. Familiarity with tools like IntelliJ IDEA, Git, Gradle, and frameworks such as Spring Boot or Ktor, along with experience in RESTful APIs and version control systems, is typically required. Strong problem-solving skills, effective communication, and the ability to mentor junior developers are standout soft skills for this role. These abilities are crucial for building robust, scalable applications and fostering technical leadership within development teams.

What is a senior Kotlin developer?

Senior Kotlin Developers are experienced software engineers who specialize in developing applications using the Kotlin programming language. They typically work on backend services, Android applications, or cross-platform solutions, leveraging Kotlin’s modern features and interoperability with Java. In addition to coding, they often lead teams, design software architecture, mentor junior developers, and ensure best practices in software development. Their expertise is valuable for companies seeking efficient, scalable, and maintainable codebases, especially in environments where Kotlin is a primary technology.

What are some common challenges senior Kotlin developers face when integrating Kotlin with existing Java codebases?

Senior Kotlin Developers often work on projects where Kotlin is gradually introduced to legacy Java codebases. A key challenge is ensuring seamless interoperability between Kotlin and Java, which requires careful handling of nullability, type conversions, and tooling compatibility. Developers also need to maintain consistent coding standards and documentation across mixed-language projects. Effective communication with team members is essential to coordinate refactoring efforts and share best practices for code migration.

What is the difference between Senior Kotlin Developer vs Android Developer?

AspectSenior Kotlin DeveloperAndroid Developer
Required CredentialsBachelor's in Computer Science, Kotlin proficiency, experience in software developmentBachelor's in Computer Science, Java/Kotlin skills, Android SDK knowledge
Work EnvironmentSoftware development teams, cross-platform projects, backend and mobile appsMobile app development teams, primarily focused on Android apps
Industry UsageTech companies, startups, enterprise softwareMobile app companies, startups, freelance developers
Search & Comparison IntentUnderstanding senior-level Kotlin roles, career progressionEntry to mid-level Android app development, job requirements

The Senior Kotlin Developer typically has broader responsibilities, including architecture design and mentoring, while an Android Developer focuses mainly on building Android applications. Both roles require Kotlin skills and industry experience, but the Senior Kotlin Developer often works across multiple platforms and project phases.

What are popular job titles related to Senior Kotlin Developer jobs in Bothell, WA? For Senior Kotlin Developer jobs in Bothell, WA, the most frequently searched job titles are:
Senior Kotlin Developer jobs near you

Senior Fullstack Software Engineer

CourtAvenue

Seattle, WA • On-site

Full-time

Re-posted yesterday

Job description

Gigantic Playground, a CourtAvenue company, is a fast-growing creative technology agency that creates immersive and interactive experiences that connect people, places, and products in extraordinary ways. Our unique experience + technology approach blends creativity, immersive storytelling, and product innovation to create dynamic experiences that captivate, engage, and delight.

 

We are in search of a Senior Full-Stack Software Engineer to join our Gigantic Playground team. In this role, you will play a crucial part in driving technological innovation for our clients, primarily in the business-to-consumer sector. Your primary responsibilities will involve crafting cutting-edge interactive experiences for our clients' customers. You will explore technology solutions, create prototypes, and ultimately implement production-ready solutions in collaboration with internal, client, and partner teams. Furthermore, you will be encouraged to continuously enhance your skills, share your knowledge with colleagues, and inspire others to excel.

The ideal candidate for the Senior Full-Stack Engineer position is a skilled developer and engineer with a knack for adaptability and a deep curiosity for emerging technologies. You should be self-motivated, capable of independent work, and possess a strong desire for professional growth. Additionally, you should thrive in a collaborative team environment, prioritize end-user experiences, and have a firm grasp of project lifecycles. Your commitment to delivering high-quality work within a fast-paced environment while ensuring user satisfaction is paramount.

The Gigantic Playground team specializes in envisioning and implementing innovative ways for end-users to interact with technology, often in ways that may not resemble traditional technology. The team oversees the entire process, from ideation and architecture to the development and installation of Gigantic Playground experiences, in partnership with our clients.

 
 
 
Job Responsibilities
  • Provide effort estimates and solution proposals for customer requirements, occasionally from a sales-oriented perspective.
  • Assist in presenting solutions and options to client business stakeholders.
  • Engage in technical discovery sessions with clients and internal stakeholders.
  • Lead the development process, solution design, and implementation to ensure on-time, on-budget, and high-quality delivery of client projects.
  • Contribute to refining processes and practices to achieve delivery excellence, team satisfaction, and client contentment.
  • Research new technologies and identify vendors and resources aligned with the client's technical strategies.
  • Promote knowledge and skill development among peers and client staff to support future growth at both the agency and client levels.
  • Collaborate in creating prototypes and proofs-of-concept for rapid learning, validation, and iteration.
Essential Skills
  • Experience in client-facing roles with a consultative focus (agency or business consulting).
  • Proficiency in SaaS and cloud-based solutions.
  • Strong presentation and communication skills.
  • Competence in requirements gathering and technical/non-technical documentation.
  • Familiarity with ALM tools (e.g., Jira, TeamCity, TFS, Git).
  • Understanding of agile principles, including scrum and backlog management.
  • Self-driven, dynamic, and exceptional problem-solving abilities.
  • Ability to extract valuable lessons from both successful and unsuccessful projects while maintaining a positive attitude towards learning from past experiences.
  • Proven expertise in full-stack development (Web UX/UI, REST APIs, Backend, DB modeling, CI/CD, and Deployment automation).
  • Proficiency in Linux or MacOS command-line tools and Bash shell scripting.
  • Strong awareness of web performance factors, including on-page and external solutions (CDN, caching, etc.).
  • Experience with automated testing for both backend and frontend.
  • Bachelor's degree in computer science, systems management, another engineering discipline, or equivalent field experience.
Requirements
  • 5+ years of industry experience required; 7+ years preferred
  • Full-stack development experience (REST APIs, Backend, DB modeling, CI/CD, Web UX/UI, HTML/CSS, Mobile Responsive).
  • Broad programming skills (e.g., NodeJS, JavaScript, SQL, C#, Java, Swift, Kotlin).
  • Expertise with platforms like RabbitMQ, MongoDB, and ExpressJS.
  • Expertise with React or Vue for Web UI and associated tools (e.g., Webpack).
  • Ability to design and develop highly reliable, fault-tolerant systems.
  • Proficiency in Automated Testing and Unit Testing.
  • Experience with cloud infrastructure providers (e.g., AWS, Azure, Google Cloud).
  • Experience using Docker/Container technologies for development and production.
  • Knowledge of infrastructure as code.
  • Experience with databases.
Bonus Skills
  • Expertise in Cloud-First Solutions.
  • Experience with mobile technologies like Flutter, React Native, Swift, and Kotlin.
  • Experience with advanced DevOps, Cloud CI/CD, Ansible, and Exensice Container Deployments at scale.
  • Background in Test-Driven Design.
  • Experience using Docker/Container technologies for development and production.
  • Knowledge of infrastructure as code.
  • Experience with databases.
$115,000 - $145,000 a year
Final compensation will be determined based on total related experience as well as geography.

Gigantic Playground is an Equal Opportunity Employer. Gigantic Playground recruits qualified applicants without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, status as a protected veteran, or genetic information.

Gigantic Playground participates in the E-Verify program. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form (I-9) upon hire.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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