Mid-Level Full-Stack Software Engineer

InvestorFlow; Greater London; On-site; GBP 60,000 - 90,000; Full time

Job summary

InvestorFlow is hiring a skilled Full-Stack Software Engineer with strong experience in C#/.NET Core and React to design, develop, and maintain robust APIs and user interfaces for our enterprise applications.

You will work with SQL Server, MongoDB, external APIs, and CI/CD pipelines, applying secure coding practices and leveraging AI tools to boost productivity.

Qualifications

• 3-5 years of experience in .NET Core and API development.
• Strong understanding of RESTful API design principles 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.

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.

Skills

RESTful API design

Front-end development

Problem solving

Education

Bachelor's degree in Computer Science or related

Tools

.NET Core

Entity Framework

SQL Server

React

TypeScript

HTML/CSS

Git

GitHub Actions

Terraform

Azure

AWS

Docker

Kubernetes

Vite/Webpack

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 .

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.