Senior Software Development Engineer (C#/.NET or Similar)

Location: São Paulo, Brazil, Hyderabad, IN, or Remote

Company description

Belmont73 AI is hiring for its pre-seed funded portfolio company, NeuroVolt, a memory-persistent AI platform enabling human-aligned agent infrastructure across mobile, desktop, and web. NeuroVolt delivers long-term memory, structured reasoning, and agent accountability without hallucinations. This role is a foundational technical hire and will work directly with product and engineering leaders with deep experience from companies like Microsoft, Amazon, and OpenAI.

Job description

The Backend Application Engineer will be responsible for building the foundational service layer of the NeuroVolt platform. This includes designing and implementing secure APIs, managing persistent memory storage systems, handling user auth flows, and supporting realtime agent interactions. You will not work on AI model pipelines; your focus will be on performance, scalability, and backend reliability to support AI integrations. The role includes API architecture, database design, and production-grade infrastructure development.

Key Roles and Responsibilities:

  • Work with stakeholders to define backend service requirements and technical specifications.

  • Design, build, and maintain RESTful or GraphQL APIs to support app, memory, and agent services.

  • Implement secure user authentication, session state management, and role-based permissions.

  • Manage data models, indexing, and storage layers (PostgreSQL or equivalent).

  • Optimize backend systems for latency and scalability under load.

  • Write unit and integration tests to ensure backend reliability.

  • Support deployment pipelines, observability tooling, and incident resolution.

Qualifications:

Senior-level backend engineer with at least 5 years of experience in:

  • C# and .NET Core (or Go, Python, Node.js backend equivalents)

  • Designing and implementing secure API services

  • Relational databases (PostgreSQL, MySQL, or MSSQL)

  • Auth systems, permissions models, and session architecture

  • CI/CD systems and cloud deployment (e.g., Docker, Azure, AWS, GCP)

Education:

Preferred Bachelor's of Science degree in Computer Engineering, Computer Science, Applied Science, Electrical Engineering, or Math; Developer nanodegree; or equivalent experience.

EEO Statement:

Belmont73 AI is an equal opportunity employer that is committed to diversifying its workforce.

Belmont73 AI does not discriminate against any applicant for employment, or any employee because of age, color, sex, disability, national origin, race, religion, or veteran status.

The statements contained in this document are intended to describe the general nature and level of work being performed by a colleague assigned to this description. They are not intended to constitute a comprehensive list of functions, duties, or local variances. Belmont73 management retains the discretion to add or to change the duties of the position at any time.

Submit applications below or to careers@belmont73.ai

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