The Software Engineer II (C#, .NET) is responsible for designing, developing and maintaining scalable, secure, and high-performing software systems. This role works cross-functionally with Product, Architecture, and Engineering teams to deliver business value through high-quality, reliable software.
This is a hands-on role focused on building production-ready solutions, while contributing to technical direction, mentoring engineers, and leveraging modern tools-including AI and spec-driven development-to improve engineering productivity and outcomes.
Key Responsibilities:
Software Development & Design
- Design, develop, test, and deploy software across the full technology stack
- Translate business and functional requirements into clear, well-defined technical specifications
- Ensure systems are scalable, resilient, maintainable, and secure
- Apply modern engineering standards and best practices
Delivery & Execution
- Break down specs and features into clear, actionable, and estimable tasks
- Deliver incremental value using Agile methodologies
- Own end-to-end delivery of features or services
- Align development with architectural standards and system design
Quality & Reliability
- Write and maintain automated unit, integration, and end-to-end tests
- Ensure code quality, performance, and adherence to specifications
- Troubleshoot and resolve production issues
- Identify risks, dependencies, and deviations early
AI-Transformed Engineering
- Leverage AI-assisted tools (e.g., Copilot, LLM-based tools) to improve productivity and code quality
- Use AI for code generation, test creation, debugging, and documentation
- Validate and refine AI-generated outputs for correctness, security, and maintainability
- Contribute to team practices around AI usage and prompt engineering
Spec-Driven Development
- Drive spec-driven development, where features are defined through clear, structured specifications before implementation
- Create and refine technical specs (APIs, contracts, workflows, data models) that serve as the source of truth for development
- Use specifications to enable alignment across engineering, product, and QA
- Leverage specs to support automation, testing, and AI-assisted development workflows
- Ensure implementations are traceable back to specifications and meet defined acceptance criteria
Collaboration
- Partner with Product, QA, and Architecture teams to deliver solutions
- Participate in design discussions and technical decision-making
- Communicate progress, trade-offs, and blockers clearly
Technical Leadership & Growth
- Contribute to coding standards and engineering best practices
- Mentor junior engineers through code reviews and guidance
- Continuously learn and adopt new technologies, including AI-driven techniques
Spec-Driven + AI Requirements
- Experience working in spec-driven or contract-first development environments
- Ability to define clear technical specifications (e.g., API contracts, schemas, workflows)
- Experience using AI-assisted development tools effectively
- Ability to validate, refine, and safely adopt AI-generated outputs
- Understanding of responsible AI usage in software development
Required Qualifications
- Bachelor's degree 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.
- Strong proficiency in C#,.NET)
- Experience with cloud platforms (e.g., AWS) and distributed systems
- Solid understanding of system design, APIs, and data models
- Experience with automated testing and CI/CD practices
- Hybrid work schedule
- Availability for rotational on-call duties outside of standard business hours may be required
Preferred Qualifications
- Experience building large-scale or mission-critical systems
- Familiarity with microservices and event-driven architectures
- Experience integrating AI capabilities into applications (e.g., LLM APIs, search, recommendations)
- Experience improving engineering workflows through automation or AI
- Strong debugging and performance tuning skills
Benefits
The Company offers eligible employees the flexibility to take as much vacation with pay as they deem consistent with their duties, the company's needs, and its obligations; seven paid holidays throughout the calendar year; and up to 160 hours of paid wellness annually for their own wellness or that of family members. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave.
USD 89,400.00 - 134,000.00 per year
Compensation:
Compensation includes a base salary in the range of $89,400.00 - $134,000.00. The base salary may vary within the anticipated base pay range based on factors such as the ultimate location of the position and the selected candidate's knowledge, skills, and abilities. Position may be eligible for additional compensation that may include an incentive program.
Benefits:
The Company offers eligible employees the flexibility to take as much vacation with pay as they deem consistent with their duties, the company's needs, and its obligations; seven paid holidays throughout the calendar year; and up to 160 hours of paid wellness annually for their own wellness or that of family members. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave.
EOE, including disability/vets
Skills Required
- Bachelor's degree in Computer Science or related discipline with 4+ years experience (alternatively Master's with 2+ years, Ph.D. with up to 1 year, or 18+ years relevant experience)
- Strong proficiency in C# and .NET
- Experience with cloud platforms (e.g., AWS)
- Experience with distributed systems
- Solid understanding of system design, APIs, and data models
- Experience with automated testing and CI/CD practices (unit, integration, end-to-end)
- Experience working in spec-driven or contract-first development environments and ability to define clear technical specifications (APIs, contracts, schemas)
- Experience using AI-assisted development tools (e.g., Copilot, LLM-based tools) and validating AI-generated outputs
- Hybrid work schedule (on-site/hybrid)
- Availability for rotational on-call duties outside standard business hours may be required
Cox Enterprises Compensation & Benefits Highlights
-
Healthcare Strength — Healthcare coverage is positioned as robust with multiple medical plan options (PPOs and an HSA‑eligible HDHP), in‑network preventive care at 100%, and expanded mental health and virtual care access. Specialized offerings such as fertility benefits, gender‑affirming care, and wellness programs (e.g., Calm, FitnessOnDemand, Hinge Health) further bolster breadth.
-
Retirement Support — The 401(k) program features an enhanced employer contribution for most newer hires—dollar‑for‑dollar matching up to 6% and an automatic 2% contribution after 90 days, with legacy formulas for earlier hire dates. Financial tools and student‑debt support via Candidly deepen long‑term savings support.
-
Parental & Family Support — Paid parental leave of eight weeks, adoption assistance (up to $5,000 per adoption), and resources like backup care and childcare discounts are highlighted. Family‑building and caregiving supports (e.g., fertility coverage, Milk Stork, Care.com access) are emphasized across materials.
Cox Enterprises Insights
What We Do
Cox Enterprises is a family-owned enterprise spanning 125+ years of innovation. Through our diverse network of businesses, our people are shaping the future with bold thinking, cutting-edge technology and an unwavering commitment to doing what’s right. Across a range of industries — including automotive, agriculture, cleantech, journalism and more — we’re building a better future for this generation and the next. Make your mark at Cox!
Why Work With Us
Founded in 1898, Cox Enterprises is a community of kind, grounded individuals who work together to drive positive change across vital industries. At Cox, employees experience meaningful work, great benefits, work-life balance and a supportive team environment, plus ample opportunities for career growth across our family of businesses.
Gallery
Cox Enterprises Teams
Cox Enterprises Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.




















