Sr. Mid-level Developer at Horizontal Talent in Seattle, Washington

Job Description:

Our client is seeking a passionate and innovative Sr. Mid-level Developer to join their dynamic team. This role offers the opportunity to apply your technical skills and creativity to deliver high-performing solutions for a rapidly growing online advertising platform. As a key member of our client's team, you will be at the forefront of their technological endeavors.

Responsibilities:
- Design and implement technical solutions with a focus on scalability
- Enhance core tools to support development, testing, and integrations leading to Continuous Delivery
- Articulate engineering designs based on product requirements
- Work on back-end services that support the client's website, including new feature development, integrations with external systems, and performance optimization

Required Skills and Experience:
- 3-5 years of software development experience
- At least 3 years of development experience using an object-oriented language
- At least 2 years of microservices development, ideally using Java Spring Boot
- Experience with Docker, Docker Compose, and running containerized applications
- Proficiency in SQL, preferably the PostgreSQL dialect
- Familiarity with Liquibase or similar database migration tool
- Experience writing unit tests and functional tests using JUnit
- Proficiency with Object Oriented Design principles and patterns
- Solid technical communication skills with business partners and other engineer teams
- Experience using distributed version control systems, such as Git
- Experience with bug tracking software such as Jira

Preferred Skills:
- Experience with Node/Express
- Familiarity with React or modern web frameworks
- Proficiency in bash and comfortable working in a terminal
- Experience with Git/GitHub Actions

Our client's team is committed to fostering a diverse and inclusive environment. We encourage individuals from all backgrounds to apply. Successful candidates will be required to complete a background check and drug screen upon offer.


Horizontal facilitates valuable and productive conversations between you and potential employers. We can assist you in growing your career by partnering you with employers that offer challenging assignments. For those that join the team, we offer competitive compensation and benefits including medical, dental, vision, and retirement. Check out all we have to offer and how you can become part of the Horizontal Talent Team. The pay range for this role is $47 - $82 per hour. This is not a guarantee of compensation, as final offer amount may vary based on factors including but not limited to experience and geographic location.