Mid-Level Full-Stack Software Engineer

InvestorFlow; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

InvestorFlow in London seeks a skilled Full-Stack Software Engineer to design, develop, and maintain robust APIs and modern user interfaces.

You will work across the stack with .NET Core, React, SQL Server, MongoDB, and cloud tools, ensuring secure, scalable applications. Collaboration with product teams and CI/CD pipelines will be essential, with opportunities to apply AI tooling to boost productivity.

Qualifications

• 3–5 years of experience in .NET Core and API development.
• Strong RESTful API design, patterns, and secure coding.
• Experience with EF, SQL Server, and Git.
• Front-end experience with React, TypeScript, HTML, and CSS.
• Experience with modern tooling (Vite/Webpack) and state management.
• CI/CD (GitHub Actions), IaC (Terraform), and cloud platforms (Azure/AWS).
• Leveraging AI tools to improve productivity where appropriate.

Responsibilities

• Design, develop, and maintain RESTful APIs using .NET Core.
• Build responsive UIs with React, TypeScript, HTML, and CSS.
• Work with SQL Server and MongoDB data and external APIs.
• Ensure secure coding and scalable architecture.
• Collaborate with cross-functional teams to integrate frontend and backend systems.
• Write unit and integration tests and participate in code reviews.
• Use CI/CD pipelines and IaC tools to automate deployments.
• Leverage AI tools to improve productivity where appropriate.

Skills

NET Core

REST APIs

React

TypeScript

SQL Server

MongoDB

CI/CD

Terraform

Azure/AWS

Git

Job description

InvestorFlow is the only company of its kind to deliver industry specialized CRM, built on Salesforce, and digital portals to help alternative asset firms find opportunities, create and manage relationships, and turn relationship insights into action with increased productivity and transparency.

We are seeking a skilled and passionate Full-Stack Software Engineer with strong experience in C#/.NET Core and modern front-end technologies (React, JavaScript/TypeScript, HTML, CSS) to design, develop, and maintain robust APIs and user interfaces for our enterprise applications.

The ideal candidate will be passionate about clean code, scalable architecture, and collaborative development, working closely with engineering and Product teams to build high quality products.

Exposure to modern AI tools and services (such as GitHub Copilot or APIs from providers like Anthropic) is beneficial.

You Will:

• 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.

You Have:

Required

• 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.

Nice to Have

• Basic awareness of AI/LLM concepts or experience consuming AI APIs (e.g. simple integrations).
• Familiarity with tools or platforms from providers like Anthropic.
• Experience in developing, building, and deploying financial services grade applications and platforms.
• Knowledge of core Azure services (Azure Functions, Azure API Management, Azure Service Bus, Azure Monitor, Application Insights, Azure Front Door, Azure CDN).
• Experience with containerization and orchestration tools such as Docker and Kubernetes.

Key Competencies

• Strong problem solving and analytical thinking
• Clean coding and attention to detail
• Collaboration and communication skills
• Ownership mindset with focus on quality and delivery
• Willingness to learn new technologies (including AI where relevant)

InvestorFlow is an investor and deal engagement platform that prioritizes intelligent digital experiences, productivity, and engagement. Our cloud-native platform integrates deal flow management, fundraising, reporting, and investor services. We are proud to serve over 175 clients, including 25 of the top 50 alternative asset managers, managing more than $6 trillion in assets, 750 funds, and 90,000 LPs. Headquartered in San Francisco, California, we are committed to driving innovation and inclusivity in the financial industry. To learn more about our company, please visit www.investorflow.com.