Sr Software Engineer

Cox Enterprises; Atlanta (GA); On-site; USD 120,000 - 180,000; Full time

Job summary

Cox Automotive is seeking a senior software engineer who applies secure software engineering principles to design, develop, maintain, test, and evaluate software and cloud infrastructure. The role works cross-functionally to understand business requirements, architecture and technology direction, and to ensure systems are scalable, reliable, and easy to use.

Candidates should have strong OO design, experience with microservices, REST/gRPC, cloud services, CI/CD, and good communication, with a

Qualifications

• Bachelor’s degree or higher with related field experience.
• Proven experience delivering production software in an OO language (e.g., C#, Java, Kotlin, Go, TypeScript, Python, C++).
• Strong OO design fundamentals — encapsulation, composition, interface design, SOLID, DI, patterns.
• Experience with microservices, API design, and distributed systems.
• Designing REST/GraphQL or gRPC APIs with good security and backward compatibility.
• Proficiency with relational databases and migrations.
• Experience with asynchronous processing and cloud/container workloads.
• CI/CD and automated testing in a modern stack; strong code review habits.
• Excellent communication with engineers and non-technical stakeholders.
• Willingness to participate in on-call rotation in Agile delivery.

Skills

OO design

REST/GraphQL APIs

Microservices

Unit testing

CI/CD

Git workflows

On-call ownership

Effective communication

Agile delivery

Security-focused development

Distributed systems

Education

Bachelor’s degree in a related discipline

Master’s degree in related field

Ph.D. in related field

12 years’ experience in a related field with no degree

Tools

Docker

Terraform

AWS

Kubernetes

PostgreSQL/MySQL

CI/CD pipelines

Job description

Cox Automotive is looking for a senior software engineer that applies the principles of secure software engineering to the design, development, maintenance, testing and evaluation of software and cloud infrastructure. Works cross functionally to understand business requirements, architecture and technology direction, evaluate alternative approaches and ensure software and systems are designed accordingly. Incorporates state-of-the-art concepts and practices to facilitate system functionality, scalability, resilience and security as well as ease-of-use (developer / user experience). Applies agile principles to software development with a focus on delivery of business value, collaboration, continuous improvement and sustainability.

Visa Sponsorship: Cox Automotive is unable to provide visa sponsorship now or in the future for this position, candidates must be authorized to work in the United States without sponsorship.

Required Qualifications:

• Bachelor’s degree in a related discipline and 4 years’ experience in a related field; or a different combination, such as a master’s degree and 2 years’ experience; a Ph.D. and 1 years’ experience in a related field; or 12 years’ experience in a related field with no degree.

• Professional experience designing, building, and maintaining production software in a modern object-oriented language (e.g., C#, Java, Kotlin, Go, TypeScript, Python, C++).

• Strong command of object-oriented design fundamentals — encapsulation, composition, interface design, SOLID, dependency injection, and common design patterns — with the judgment to know when not to apply them.

• Experience delivering software in a microservice or service-oriented architecture, including defining service boundaries, versioning APIs, and handling distributed failure modes (timeouts, retries, idempotency, partial failure).

• Experience designing and consuming HTTP/REST APIs (or gRPC/GraphQL equivalents), including contract design, backward compatibility, and authentication/authorization patterns.

• Proficiency with relational databases: schema design, indexing, query tuning, transactions, and managed schema migrations.

• Experience with asynchronous and message-driven processing using queues, topics, or event streams.

• Experience building and operating services in a public cloud environment, including containerized workloads.

• Demonstrated automated testing discipline across unit, integration, and end-to-end layers, with work delivered through a CI/CD pipeline.

• Proficiency with Git-based workflows and code review as a routine part of delivery — both giving and receiving substantive feedback.

• Experience with production support and observability: structured logging, metrics, tracing, alerting, and triaging live incidents.

• Track record of senior-level ownership: taking ambiguous problems through design, implementation, and release; decomposing work for others; and raising engineering standards on a team.

• Clear written and verbal communication with both engineers and non-technical stakeholders.

• Experience working in an Agile or iterative delivery model.

• This role may require participation in a rotating on-call schedule, including support outside of regular business hours.

Preferred Qualifications:

• Comfort with AI-assisted development tooling as part of a normal workflow.

• Hands-on experience with C# and .NET (modern .NET, ASP.NET Core, Entity Framework Core).

• Front-end experience with React and TypeScript, including modern component patterns, state management, and component/E2E testing.

• Production experience with PostgreSQL and/or MySQL.

• Experience using Redis for caching, distributed locking, or rate limiting, including cache invalidation strategy.

• AWS experience, particularly ECS/Fargate, RDS, SQS/SNS, S3, Lambda, CloudWatch, and IAM.

• Infrastructure-as-code experience (Terraform, AWS CDK, or CloudFormation) and Docker.

• Familiarity with distributed system patterns such as outbox, saga/compensating transactions, eventual consistency, and idempotent consumers.

• Demonstrated performance and scalability work: profiling, query optimization, caching strategy, or load testing.

• Experience with feature flags and progressive delivery (canary releases, dark launches, trunk-based development).

• Familiarity with static analysis, code quality, and dependency/security scanning tooling (e.g., SonarQube, SAST, SCA).

• Experience modernizing or retiring legacy systems, including incremental migration approaches such as strangler‑fig.

• Experience integrating third‑party vendor APIs, including handling vendor migrations.

• Multi‑tenant SaaS experience, especially entitlements, tiered packaging, or role‑based access control.

• Domain experience in two‑sided marketplaces, logistics, transportation, or automotive.

• Experience with resiliency practices such as game days, chaos exercises, or documented runbooks.

• Experience mentoring engineers or interns, and participating in hiring and interview loops.