Senior Software Engineer – Backend

We are looking for a Senior Software Engineer to join our backend team and play a critical role in building the platform that will define Case Guard’s next chapter.

You will design and build the REST API microservices and cloud infrastructure that power our application, real-time collaboration features, and large-scale processing workers.

This role is expected to operate with a high degree of ownership. You will take responsibility for backend domains or major features and drive them end-to-end from design through production with minimal oversight.

Beyond writing excellent code, you will contribute to engineering standards, influence system design, and help scale both the system and the team.

• Design and build scalable, secure REST APIs and microservices using ASP.NET Core (C#)
• Build and maintain backend workers for large-scale file processing – ingesting, analyzing, redacting, and exporting documents using ML models
• Take ownership of backend domains or major features and drive them end-to-end from design through production
• Own database design, schema decisions, and query optimization for production systems
• Design and deploy AWS cloud infrastructure using Infrastructure as Code (IaC) tools such as AWS CDK
• Support real-time collaboration features for concurrent multi-user workflows
• Identify and resolve performance bottlenecks to ensure reliability and scalability under load
• Champion security and compliance best practices across backend systems and APIs
• Work closely with frontend engineers to design and deliver end-to-end features – defining API contracts, aligning on data flows, and ensuring correct system behavior across client and backend

• Break down complex, ambiguous problems into well-defined tasks and execution plans
• Take ownership of ambiguous problem spaces and turn them into clear, executable designs and deliverables
• Operate with minimal guidance on implementation details while aligning with the overall architecture
• Drive execution across engineers when required – breaking down work, aligning implementation, and ensuring delivery outcomes
• Make independent technical decisions within your domain, escalating only when cross-system tradeoffs are involved
• Drive backend decisions in cross-functional work, ensuring system design is robust, scalable, and not constrained by client-side limitations
• Be accountable for the reliability, performance, and scalability of the systems you build in production

• Conduct thorough code reviews and uphold engineering standards
• Participate in architectural discussions and contribute to system design decisions
• Mentor junior engineers and support their technical growth
• Contribute to hiring by reviewing technical assessments and interviewing candidates

• 6+ years of experience owning and delivering complex backend systems or features end-to-end
• Strong proficiency in C# and ASP.NET Core for REST API and microservices development
• Solid experience with relational and/or No
  
  SQL databases and performance optimization
• Hands‑on experience with AWS services (e.g., EC2, S3, Lambda, RDS, Dynamo
  
  DB)
• Experience building scalable, production‑grade systems with clear reliability and performance considerations
• Strong understanding of asynchronous processing, concurrency, and distributed system fundamentals
• Security‑aware mindset with experience handling sensitive or compliance‑regulated data
• Strong communication skills and ability to collaborate effectively across a hybrid team

• Experience building large‑scale file or document processing pipelines
• Experience with event‑driven architectures and message queues (e.g., SQS, SNS, Event Bridge)
• Familiarity with ML model integration or AI‑powered backend systems
• Experience with real‑time systems (e.g., Web Sockets, Signal
  
  R)
• Practical knowledge of IaC tools such as AWS CDK, Terraform, or Cloud Formation
• Experience with containerization (Docker) and orchestration platforms (Kubernetes)

• Meaningful equity – we believe in sharing ownership with the people who build the company
• Competitive base salary alongside an equity‑heavy compensation package
• Hybrid working – flexibility to work remotely with regular in‑person collaboration
• Direct influence over architecture, engineering culture, and the technical roadmap
• Opportunity to take ownership of critical backend domains in a growing cloud platform
• A small, high‑trust team that moves fast, values craftsmanship, and ships quality software
• Medical, Dental, and Vision Insurance
• 401K
• Paid Vacation
• Ten paid holidays per year
• Friendly and Learning environment

Salary Range: $120,000 to $206,000