← All roles

Mid-Level Full-Stack Software Engineer

InvestorFlow· Research & Development
Apply on company site
Hybrid (London)Full-timePosted 2mo ago

About the role

Full-Stack Software Engineer role focusing on designing and maintaining robust APIs and responsive user interfaces for enterprise applications, with experience in C#/.NET Core and modern frontend technologies (React, JavaScript/TypeScript, HTML, CSS). Hybrid, London-based, full-time.

Responsibilities

  • Design, develop, and maintain RESTful APIs using .NET Core.
  • Work with data from SQL (MS-SQL server) and NoSQL (MongoDb) databases and external APIs.
  • Ensure secure coding practices are followed throughout the development lifecycle.
  • Collaborate with cross-functional teams to integrate APIs with frontend and backend systems.
  • Build and maintain responsive, accessible user interfaces using React, JavaScript/TypeScript, HTML, and CSS.
  • Optimize API performance and ensure scalability.
  • Write unit and integration tests to ensure code quality.
  • Participate in code reviews and contribute to continuous improvement.
  • Work with CI/CD pipelines and Infrastructure as Code (IaC) tools to automate deployments.
  • Leverage modern developer tools (e.g., GitHub Copilot) to improve productivity where appropriate.

Qualifications

  • 3–5 years of experience in .NET Core and API development.
  • Strong understanding of RESTful API design principles, software design patterns, and secure coding standards.
  • Experience with Entity Framework, SQL Server, and version control systems (e.g., Git).
  • Hands-on experience with front-end development using React, JavaScript/TypeScript, HTML, and CSS.
  • Experience with modern front-end tooling and build systems (e.g., Vite, Webpack) and state management libraries.
  • Experience with CI/CD tools (e.g., GitHub Actions), IaC (e.g., Terraform), and cloud platforms (Azure/AWS).
  • Leverage modern AI tools (e.g. GitHub Copilot, Claude Code, etc.) to improve productivity where appropriate.
  • Good problem-solving skills and understanding of scalable system design.

Skills

Required:.NET CoreRESTful API designEntity FrameworkSQL ServerMongoDBReactJavaScript/TypeScriptHTML/CSSCI/CDIaC
Last updated Oct 21, 2026. Interested? Apply on the company site.
InvestorFlow logo

About InvestorFlow

Powering Private Markets

InvestorFlow is the leading AI-powered front-office platform for capital formation, deployment, and investor services in the private markets.

capital formationdeploymentinvestor servicesprivate marketsAI-poweredCRMrelationship and meeting intelligenceprivate equity
Company profileWebsite

More open roles at InvestorFlow