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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Fullstack Engineer (C#/ .NET + Angular) - **Company:** Instinctools, LLC - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** ASP.NET, .NET Framework, Application Programming Interfaces (APIs), Agile Methodology, Business Analytics Applications, Business Logic, C Sharp (Programming Language), Software as a Service, Software Quality, Code Review, Distributed Systems, Entity Framework, Python (Programming Language), NoSQL, Software Engineering, Product Software Implementation Methods, SQL Databases, TypeScript, Web Application Frameworks, Cloud Platform System, Backend, AngularJS, Integration Tests, Information Technology, Front End Software Development, Restful APIs - **Published:** November 7, 2026 - **Apply:** https://www.juju.com/job/28_25196_8f3d5d5f2106ad0df39e9b4a239954b0 ## About the Role Our team is looking for a Senior Fullstack Engineer (C#/ .NET + Angular) for one of our clients. The client is a rapidly growing FinTech company delivering SaaS analytics solutions to institutional investors. The project is dedicated to building and scaling a platform delivering comprehensive tranche, deal, manager, and market analytics. This role focuses primarily on designing and developing intuitive, high-performance user interfaces, while also contributing to backend services and APIs that support seamless end-to-end functionality. The ideal candidate brings a strong blend of front-end and back-end engineering expertise, with the ability to translate complex financial workflows into elegant, scalable, and responsive applications. Project team: ~15 people (data engineers, sales, and related functions) Tech stack: C#/.NET, ASP.NET Core, Entity Framework, Angular, TypeScript, REST APIs, NoSQL, * 6+ years of experience as a Full Stack Developer, ideally within the FinTech or technology space * Proficiency in server-side programming languages and technologies: C#/.NET, ASP.NET Core, Entity Framework, SQL (Python is a plus) * Experience with web frameworks and technologies: Angular and TypeScript * Experience designing and consuming RESTful APIs, and working with relational and/or NoSQL databases * Familiarity with cloud-based architectures, distributed systems, and modern deployment practices * Experience working in agile development environments, contributing to a collaborative team * Experience supporting data-intensive, client-facing applications * Bachelor's degree in computer science, engineering, or a related field * Self-starter who is passionate about technology * Keen eye for automation and improving efficiency * Ability to provide leadership and accountability for work they undertake * Takes ownership of their work and has exceptional attention to detail * Has excellent communication skills and the ability to articulate their thoughts and ideas * Comfortable with fast-paced and strongly collaborative environments * Able to take on ideas and feedback from both technical experts and business thought-leaders. Spoken English: Upper-Intermediate (B2+) ## Description *instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements., * Design, build, and maintain backend services, APIs, and core application logic supporting a client-facing platform * Help improve scalability, reliability, security, and performance * Design, develop, and maintain modern, responsive frontend applications using Angular and TypeScript * Build reusable UI components and scalable frontend architectures * Develop and maintain data pipelines and integrations with internal and external systems * Write, maintain, and review automated unit and integration tests to ensure code quality and system stability * Optimize performance and proactively identify technical risks * Collaborate with engineers, product managers, and client-facing teams to translate business requirements into technical solutions * Contribute to software design discussions, code reviews, and documentation across the team * Support end-to-end delivery of features from design through deployment and post-release monitoring, *instinctools is a developer of IT solutions for Western Europe. We have over 350 projects in our portfolio. The spheres are different - from healthcare and medicine, training and education, to digital advertising, economics and IT. For the software implementation and maintenance across such a number of projects, competent developers are important.