Backend Engineer

Tidal Financial Group is seeking a Backend Software Engineer to build and maintain the trading applications that power our ETF platform. This is a backend-focused role, centered on designing reliable, high-performance systems in C# and .NET 10 that support traders and operations teams.

You’ll work closely with frontend, data, and DevOps teams-collaborating on requirements, aligning on interfaces, and helping ensure systems work seamlessly end-to-end. This role plays an important part in delivering tools that are accurate, responsive, and dependable for real-world financial decision-making., * Design and develop backend services, APIs, and real-time systems for internal trading applications and external-facing client platforms in C# / .NET 10, with a focus on reliability, performance, and maintainability.

• Build and maintain integrations with Bloomberg using REST, FIX, and Pub/Sub APIs to support trading operations, market data, and transaction reporting workflows.
• Implement real-time data delivery using SignalR and messaging patterns using Redis for caching, queueing, and pub/sub messaging.
• Design and query relational data models using Entity Framework Core, LINQ, and PostgreSQL (AWS Aurora), while collaborating with the Data team on shared data needs, including Snowflake.
• Implement and maintain application security, including SSO for internal applications and appropriate authentication/authorization patterns (OAuth2, OpenID Connect) for external-facing platforms.
• Partner closely with frontend, data, and DevOps teams to define API contracts, align on requirements, and deliver solutions collaboratively and efficiently.
• Contribute to architectural decisions, code reviews, and engineering standards, with an emphasis on clarity, simplicity, and long-term scalability.

Do you have experience in Tooling?, We’re looking for someone who takes ownership of their work, communicates clearly, and values building simple, well-designed systems. The ideal candidate brings strong .NET experience along with an interest in financial markets and trading workflows. Candidates with experience working directly with ETFs are strongly preferred., * 5+ years of backend software engineering experience with a strong focus on C# and modern .NET (.NET 6+, ideally .NET 10).

• Deep proficiency in the .NET ecosystem, including Entity Framework Core, LINQ, SignalR, and related libraries.
• Strong experience with PostgreSQL and relational data modeling; comfortable writing and optimizing complex SQL queries.
• Experience building and securing both internal and external-facing APIs, including SSO integration (Microsoft Entra / Azure AD) and external authentication patterns (OAuth2, OpenID Connect).
• Experience with Redis for caching, queueing, and pub/sub messaging patterns.
• Familiarity with gRPC, or openness to adopting it as part of the stack.
• Proficiency with Git/GitHub and modern development workflows (pull requests, code review, branching strategies).
• Comfortable using JetBrains Rider or equivalent professional .NET tooling.
• Experience working in Agile environments, with a collaborative, team-first approach to planning and delivery.
• Strong communicator who can work effectively across teams, bringing clarity to technical decisions and aligning stakeholders without requiring close oversight.
• Self-directed and accountable, with the ability to manage priorities and follow through in a fast-moving environment.

Preferred:

• Experience with Bloomberg integrations using REST, FIX, and Pub/Sub APIs
• Familiarity with ETF lifecycle concepts-basket creation, order management, NAV calculation, holdings reconciliation, and trade workflows
• Awareness of AWS compute and infrastructure (ECS/EC2, Lambda, CloudWatch)
• Familiarity with Snowflake as a data platform
• Exposure to Next.js or modern frontend frameworks (helpful for cross-team collaboration)
• Understanding of compliance frameworks such as SOC2
• Curiosity about financial markets and trading systems, with an interest in how technology supports real-time decision-making

Soft Skills:

• Analytical mindset with the ability to translate business processes into scalable technical solutions.
• Flexibility to work with the changing demands of the business team.
• Clear communication and documentation skills across technical and non-technical stakeholders.
• Collaborative, resourceful, and proactive in a fast-paced, remote-first environment.

The Tidal Financial Group is a leading ETF investment technology platform dedicated to creating, operating, and growing ETFs. We combine expertise and innovative partnership approaches to offer comprehensive, value-generating ETF solutions.

Our platform offers best-in-class strategic guidance, product planning, trust and fund services, legal support, operations support, marketing and research, and sales and distribution services.