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About the Role

Cox Automotive is seeking a Senior Software Engineer to join a team focused on delivering solutions for dealer inventory acquisition and exit. The role involves full lifecycle development of applications using C# and Stencil on AWS, combining backend services with modern web interfaces. You will own features end-to-end, collaborate with cross-functional teams, and support production systems. A key aspect of this role is applying testing-first development practices and leveraging AI-assisted development tools.

Responsibilities

Design, develop, and deploy scalable, cloud-native applications.
Own features and systems end to end, from architecture through production support.
Write and maintain unit, integration, and automated tests.
Support functional testing efforts.
Troubleshoot and resolve software defects and production issues.
Break down epics and stories into technical tasks and provide estimates.
Build expertise in supported applications, systems, and services.
Monitor and manage cloud infrastructure (cost, performance, security) within AWS.
Enhance CI/CD pipelines and infrastructure.
Design and build service-oriented architecture solutions.
Explore and incorporate AI capabilities to improve code quality and innovation.
Collaborate with AI agents to build, test, and deploy software.
Implement AI-powered features and pipelines.
Contribute to prompt engineering experimentation and share tool usage insights.
Mentor and support junior and mid-level engineers.
Participate actively in Agile ceremonies.
Effectively document work and share knowledge.
Stay current on tools, technologies, and trends relevant to your technical domain.

Requirements

Bachelor’s degree in Computer Science or a related discipline and 4+ years of experience in a related field, OR master’s degree and 2+ years of experience, OR Ph.D. and up to 1 year of experience, OR 18+ years of directly relevant experience.
4+ years of full stack software development experience, designing and developing web applications.
4+ years of experience building and deploying applications in a cloud environment (preferably AWS; Azure or GCP acceptable).
4+ years of proficiency in .NET or Java, and React.js.
4+ years of experience using Git or similar version control systems.
Demonstrated experience contributing to open-source projects or communities.
Experience working with AI technologies or strong curiosity to incorporate AI into development.
Advanced prompt engineering experience.
Experience with additional tech-stacks such as .NET, Stencil, javascript, Node.js.
Hands-on experience with designing and implementing on AWS is preferred.
Experience leading or contributing significantly to large-scale technical projects.
Strong database development skills, including advanced SQL, relational and NoSQL database technologies.
Effective communicator; able to present technical information clearly to both technical and non-technical audiences.
Skilled at collaborating across cross-functional teams and aligning stakeholders around shared goals.
AWS certifications (Developer, Solutions Architect, or DevOps) preferred.
Must clear a pre-employment drug test (marijuana excluded for this position).

Skills

C#
Stencil
AWS
JavaScript
.NET
Java
React.js
Git
Agile (Scrum/Kanban)
DevOps
CI/CD
TDD
AI integration
Serverless architecture
PostgreSQL
DynamoDB
Elasticsearch
Oracle
OpenSearch
AWS SDK
Elastic Beanstalk
ElastiCache
S3
EC2
SQS
SNS
API Gateway
CloudFormation
Lambda
ECS Fargate
New Relic
AWS CodeBuild
Github
Splunk
Terraform
Agentic coding
AI-assisted development tools
GitHub Copilot
ChatGPT
Claude Code
Node.js

Location

Hybrid

Work Type

Hybrid
Full-time

Experience Level

Senior
Individual Contributor

Education Level

Bachelor's degree in Computer Science or related discipline
Master's degree
Ph.D.

Salary/Compensations

$111,600.00 - $186,000.00

Benefits

Flexible vacation with pay
Seven paid holidays
Up to 160 hours of paid wellness annually
Bereavement leave
Time off to vote
Jury duty leave
Volunteer time off
Military leave
Parental leave
Health care insurance (medical, dental, vision)
Retirement planning (401(k))
Paid days off (sick leave, parental leave, flexible vacation/wellness days, and/or PTO)

About the Company

Cox Automotive is transforming the way the world buys, owns, sells – or simply uses – cars through groundbreaking technology and a commitment to stellar experiences for drivers and dealers.
Employees work on iconic consumer brands like Autotrader and Kelley Blue Book and industry-leading dealer-facing companies like vAuto and Manheim.
Cox brings together great minds to help breathe life into new possibilities and drive innovation for a better future.
The company looks for individuals who share a pioneering spirit, have imaginative ideas, and are fearless when tackling challenges.
Employees love technology and making a difference, finding new solutions and working with brilliant colleagues on exciting projects.
Cox pioneers work on a range of projects, from engineering sustainability solutions to creating infrastructure for smart cities.
The company offers dynamic, collaborative, and creative environments where ideas are welcome and new discoveries are waiting.
Cox strives to support employees in their career aspirations and promote the freedom to explore new horizons.

Equal Opportunity

Cox is an Equal Employment Opportunity employer – All qualified applicants/employees will receive consideration for employment without regard to that individual’s age, race, color, religion or creed, national origin or ancestry, sex (including pregnancy), sexual orientation, gender, gender identity, physical or mental disability, veteran status, genetic information, ethnicity, citizenship, or any other characteristic protected by law.
Cox provides reasonable accommodations when requested by a qualified applicant or employee with disability, unless such accommodations would cause an undue hardship.
EOE, including disability/vets.