Senior Software Engineer - SQL / C# / .NET

Responsibilities

Lead technical discussions and make critical architectural decisions aligned with business goals.

Design, develop, and maintain robust and scalable applications using the Microsoft .NET technology stack, SQL and other data tools.

Implement solutions using modern architecture paradigms including microservices, and event-driven systems.

Ensure adherence to SOLID principles, design patterns, and clean coding standards.

Collaborate with cross-functional teams, participate in code reviews, and mentor junior developers.

Analyze business requirements and translate them into technical designs and development-ready specifications.

Working across teams and departments to standardize data transfer and storage

Basic Qualifications

Bachelor’s Degree required from an accredited, not for profit university or college.

A track record of commitment to prior employers.

5+ years of professional experience in software development using strongly typed languages for server-side processing, such as C#, GoLang, Java or Node with Typescript

Must have strong experience with MS SQL Server, including relational database design and performance tuning.

Able to demonstrate experience building highly scalable software systems in both volume processing and performance

Familiarity with microservices architecture and containerization using Docker and Kubernetes.

Experience with AWS or similar cloud platforms (Azure, GCP).

Strong understanding of CI / CD principles, infrastructure as code, and automated deployment pipelines and source control systems. Strong analytical and problem-solving skills with attention to detail and excellent communication skills.

Experience in unit, performance and automation testing.

Preferred Qualifications

Experience with NoSQL databases and API Gateway technologies.

Familiarity with observability tools like Kibana, Data Dog and other monitoring frameworks

Hands-on experience with Entity Framework for efficient data modeling and data access.

Databricks, Python or other ETL processing experience

Experience with ElasticSearch or OpenSearch

Payments experience a plus

Experience with Identity & Access Management, like OAuth, JWT.

Exposure to serverless computing and event-driven architecture, including but not limited to RabbitMQ, SQS, Kafka, or Azure Service Bus

What’s in it for you?

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, and tuition reimbursement.

Our benefits package includes (but is not limited to) :

Comprehensive healthcare coverage : Medical / Vision / Dental / Prescription Drug

Life, legal, and supplementary insurance

Virtual and in person mental health counseling services for individuals and family

Commuter and parking benefits

401(K) retirement plan with matching contributions

Employee stock purchase plan

Paid time off

Tuition reimbursement

On-site fitness center and / or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes

Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups

Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks