About the Position

We are seeking a Senior/Lead Full Stack Engineer to build and scale core capabilities of an enterprise DEX platform trusted by large enterprise customers, working across C#/.NET on the backend and React with TypeScript on the frontend. You will design APIs, build high-availability database systems, deliver accessible and performant user interfaces, and mentor junior engineers across both disciplines. The role expects active use of AI-assisted development tools such as GitHub Copilot as part of the daily engineering workflow.

Responsibilities

Build, enhance, and scale core platform capabilities in C#/.NET;
Define architecture, design, and develop new backend features and services;
Design and implement common APIs following architecture guidelines and best practices;
Design and build high-availability, high-quality database systems;
Optimize performance, reliability, and scalability using modern tooling and techniques;
Monitor core platform performance and proactively propose improvements;
Ensure backend solutions are secure, stable, scalable, and efficient;
Develop responsive, accessible, and high-performing user interfaces using React and TypeScript;
Collaborate closely with UX/UI designers to translate designs into production-ready implementation;
Integrate front-end applications with REST/GraphQL APIs, collaborating on API contract design;
Maintain front-end quality through testing, reviews, and best practices;
Work independently on solutions and be accountable for time and quality commitments;
Participate actively in sprint planning, technical design discussions, and continuous improvement initiatives;
Coach and mentor junior engineers across backend and front-end disciplines;
Act as an advisor to product owners on technical feasibility and delivery estimates;
Communicate with customers to analyze and resolve product defects or support major implementations;
Stay up to date with developments across cloud, backend, front-end, and AI-assisted engineering.

Requirements

6+ years of professional software development experience;
Strong expertise in .NET (C#) and SQL, with a focus on backend/API development;
Commercial experience with modern UI frameworks, such as React, Angular, and VueJs;
Experience with GitHub Copilot or similar AI developer tools;
Solid knowledge of TypeScript and modern JavaScript (ES6+);
AI-empowered mindset: proven experience optimizing enterprise-level solutions with AI-assisted engineering;
Experience designing and consuming REST and/or GraphQL APIs;
Experience writing and maintaining automated tests (unit, integration, and/or UI);
Strong understanding of Clean Code, SOLID principles, and design patterns;
Experience working on distributed, cloud-based systems;
Excellent debugging skills and strong root-cause analysis capabilities;
Understanding of secure coding principles and best practices;
Fluency in English;
Experience with cloud native technologies;
Experience delivering containerized solutions (Docker).

Nice to Have

University degree in Computer Science, Engineering, or a related field;
Experience with UI component libraries (such as MUI Base, MUI Core, Radix UI, etc.);
Understanding of web accessibility standards (WCAG);
Experience with observability platforms (e.g. DataDog) and structured logging;
Exposure to CI/CD tooling such as Kustomize, ArgoCD;
C++ language experience is a plus.

We Offer

Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps.
Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities.
A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands.
Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.

About the Company

Your AgileEngine journey starts here. We are ranked by Inc. 5000 among America's fastest-growing private companies. Join our team and be part of a dynamic and innovative environment.

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Job Description, Responsibilities & Requirements