Red Cell Partners - Senior Full Stack Software Engineer
Requirements
• Frontend: React 19, TypeScript, Vite-based React apps, Tailwind CSS, SignalR • Frontend • Backend: .NET 9 (C#), Minimal APIs, Entity Framework Core • Backend: • Async Processing: RabbitMQ, Redis (for scale-out and caching) • Async Processing: • Data and Storage: PostgreSQL, Amazon S3 • Data and Storage: • 8+ years of professional software engineering experience delivering production web applications. • Strong full stack experience shipping user-facing features end-to-end across frontend, backend, and data layers. • Deep expertise in React and TypeScript, including component architecture, hooks, and performance optimization. • React and TypeScript • Experience building and maintaining modern React applications (Vite, Tailwind CSS and client-side data fetching patterns). • Strong backend experience with C# and modern .NET (.NET 9 or similar), including API design with Minimal APIs and secure development practices. • C# and modern .NET • Strong experience with PostgreSQL, including schema design, indexing strategies, and query optimization. • Hands-on experience with Entity Framework Core, including writing efficient queries and managing migrations. • Entity Framework Core • Experience designing and operating asynchronous workflows (RabbitMQ) and implementing caching strategies (Redis). • asynchronous workflows • caching strategies • Experience building real-time UI updates using SignalR. • Experience working with AWS, especially object storage in Amazon S3. • Solid understanding of authentication or authorization patterns including application-level RBAC (e.g., JWT, OAuth/OIDC concepts). • Strong written and verbal communication skills, including the ability to collaborate effectively in a remote environment. • Experience integrating .NET services with Python-based systems and designing stable data contracts between services or teams. • .NET services with Python-based systems • Experience with Docker and container orchestration (Kubernetes). • Observability and performance tooling experience (OpenTelemetry, Application Insights, Datadog, Grafana/Prometheus). • GraphQL experience (in addition to REST). • Analytical Aptitude: Possess keen analytical and problem-solving skills, coupled with the capability to understand complex software challenges and collaborate toward viable solutions. • Effective Communication: Skilled in distilling technical complexities into comprehensible terms for varied audiences. • Adaptive Nature: Resilience and adaptability in the face of an ever-changing tech landscape, with a knack for rapidly integrating new technologies and methodologies. • Agile Methodology Experience: An understanding and hands-on experience with agile development methodologies and version control tools. • Agility in Tech: Demonstrated adaptability in the fast-paced tech landscape, continually embracing and integrating new technologies and methodologies. • Education: While formal education in Computer Science or related fields is a plus, DefconAI values hands-on experience and demonstrable skills above all. Candidates with 6+ years of relevant experience will be considered regardless of their academic pedigree. • Continuous Learner: A commitment to perpetually update one's skill set, staying aligned with the latest in technology trends and best practices.
Responsibilities
• Shape the product architecture end-to-end. You’ll design and ship modular .NET services and modern React frontends that stay fast, reliable, and elegant across a wide range of real-world customer environments. • Shape the product architecture end-to-end. • Own the data foundation. You’ll design high-performance PostgreSQL schemas and craft EF Core queries that serve as the source of truth for business logic, permissions, and RBAC—balancing correctness, clarity, and scale. • Own the data foundation. • Engineer for performance at scale. You’ll build smart caching layers with Redis and leverage S3 for large artifacts, keeping our Web Gateway lean, responsive, and built to grow. • Drive technical direction through RFCs. You’ll author and collaborate on design proposals that define data contracts and API boundaries, making our .NET platform and Python-based solver runners work together seamlessly. • Drive technical direction through RFCs. • Ship with product and design, not in a silo. You’ll partner closely with product and design to turn real customer problems into thoughtful technical solutions—and deliver them in tight, iterative releases. • Ship with product and design, not in a silo. • Use AI as a force multiplier (responsibly). You’ll leverage tools like Claude Code and GitHub Copilot/Cursor to move faster and refactor with confidence, while keeping security, quality, and maintainability non-negotiable. • Use AI as a force multiplier (responsibly). • Hold the quality bar high. You’ll help set the standard through great code reviews, automated testing, and pragmatic engineering practices that keep the codebase a joy to work in. • Hold the quality bar high.
Benefits
• A fully remote, results-based environment • Competitive salary, bonus, and equity package • 100% employer paid, comprehensive health insurance including medical, dental, and vision for you and your family • Unlimited PTO, with your manager’s approval • Flexible work environment where you manage your work day • 14 weeks of fully-paid parental leave • Salary range: $155,000-$215,000. This represents the typical salary range for this position based on experience, skills, and other factors. • For full-time roles only • Career track opportunity with potential for rapid advancement with strong performance as the firm grows • 100% employer paid, comprehensive health care including medical, dental, and vision for you and your family. • Paid maternity and paternity for 14 weeks at employees' normal pay. • Unlimited PTO, with management approval. • Opportunities for professional development and continued learning. • Optional 401K, FSA, and equity incentives available. • Mental health benefits are available through Tara Mind.
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