Sr. Backend Engineer (.NET/C#)

We are looking for a skilled Senior Backend Engineer to join our team, where you will be responsible for building and maintaining the core backend systems that power our platform. Our primary backend language is .NET/C#, and we are looking for someone who is passionate about developing scalable, reliable, and efficient backend services.

As a Senior Backend Engineer, you will collaborate closely with frontend engineers, DevOps, and product teams to ensure seamless integration and delivery of new features. You ll take ownership of backend services, including APIs, microservices, and database design, while implementing best practices for performance, security, and scalability. This position is fully remote with occasional travel to our NYC office for team collaboration and events.

What You ll Do

• Design, develop, and maintain backend services and APIs using .NET and C#.
• Architect and implement microservices, ensuring scalability and performance across our platform.
• Collaborate with frontend and DevOps teams to ensure seamless deployment and integration with existing systems.
• Write clean, efficient, and testable code, following best practices for backend development, including SOLID principles and design patterns.
• Optimize existing services for performance, reliability, and scalability, utilizing caching strategies, efficient database queries, and more.
• Build and manage database structures using technologies like Elasticsearch, Redis, and EventStore.
• Implement robust monitoring, logging, and alerting solutions to maintain high availability and observability of services.
• Work with DevOps teams to streamline the CI/CD pipelines for backend services, leveraging tools like Docker, Kubernetes, and AWS services.
• Troubleshoot and resolve complex issues in production, ensuring minimal downtime and impact on users.
• Stay current on industry trends and emerging technologies, bringing innovative solutions to the team.

Requirements

• Bachelor s degree in Computer Science, Software Engineering, or a related field.
• 5+ years of professional experience as a backend engineer, with a strong focus on .NET and C# development.
• Proven experience designing and implementing RESTful APIs and microservices architectures.
• Strong understanding of database technologies, including Elasticsearch, Redis, and EventStore.
• Hands-on experience with CI/CD pipelines, containerization (Docker, Kubernetes), and cloud services (AWS preferred).
• Strong understanding of object-oriented programming (OOP) principles and software design patterns.
• Familiarity with message queuing and streaming technologies (e.g., Kafka, gRPC).
• Excellent problem-solving skills, with the ability to debug and resolve complex production issues.
• Experience with version control systems (Git) and Agile methodologies.
• Excellent communication and teamwork skills, with a focus on collaboration across teams.

Nice to Have

• Experience with additional backend technologies like Node.js or Python.
• Familiarity with frontend development, specifically React or Next.js, for better collaboration with the frontend team.
• Knowledge of serverless architectures and event-driven design.
• Experience with caching solutions (e.g., Redis, Memcached).

Benefits

At Fluent, we like what we do and we like who we do it with. Our team is a tight-knit crew of go-getters; we love to celebrate our successes! In addition we offer a fully stocked kitchen, catered breakfast and lunch, and our office manager keeps the calendar stocked with activity-filled events. When we re not eating, working out, or planning parties, Fluent folks can be found participating in recreational sports leagues, networking with She Runs It, and bonding across teams during quarterly outings to baseball games, fancy dinners, and pizza-making classes. And we have all the practical benefits, too

• Competitive compensation
• Ample career and professional growth opportunities
• New Headquarters with an open floor plan to drive collaboration
• Health, dental, and vision insurance
• Pre-tax savings plans and transit/parking programs
• 401K with competitive employer match
• Volunteer and philanthropic activities throughout the year
• Educational and social events
• The amazing opportunity to work for a high-flying performance marketing company!

Salary Range: $165,000 to $190,000 - The base salary range represents the low and high end of the Fluent salary range for this position. Actual salaries will vary depending on factors including but not limited to location, experience, and performance.

Fluent participates in the E-Verify Program. As a participating employer, Fluent, LLC will provide the Social Security Administration (SSA) and, if necessary, the Department of Homeland Security (DHS), with information from each new employee s Form I-9 to confirm work authorization. Fluent, LLC follows all federal regulations including those set forth by The Office of Special Counsel for Immigration-Related Unfair Employment Practices (OSC). The OSC enforces the anti-discrimination provision ( 274B) of the Immigration and Nationality Act (INA), 8 U.S.C. 1324b.