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Senior Full-Stack Engineer at Tradeify. Remote Location: Remote - USA. About Tradeify. At . Tradeify.co. , we are a fintech company building powerful, data-driven trading platforms designed for performance, scale, and user experience. Our systems support thousands of traders globally, combining real-time insights, intuitive design, and robust infrastructure.. This is not a typical CRUD web app role — you’ll be working on complex, data-rich systems that require thoughtful architecture, performance optimization, and strong product intuition.. We’re looking for a pragmatic, collaborative engineer who thrives in a team environment, participates in structured development processes, and delivers high-quality code consistently.. A competitive compensation package will be offered to the successful candidate.. What You’ll Do. Design, build, and maintain scalable full-stack applications across frontend and backend systems. Develop and integrate with third-party APIs and external services critical to platform functionality. Build and optimize backend services using Python and/or C#. Develop and maintain APIs that power internal and external system integrations. Build responsive, high-performance user interfaces for data-heavy workflows and dashboards. Work with modern databases (PostgreSQL, Redis, etc.) and understand tradeoffs in data modeling and performance. Collaborate closely with Product, Design, and Engineering to deliver high-impact features. Participate in sprint planning, estimation, stand-ups, and retrospectives. Write clean, maintainable, and well-tested code. Debug and resolve production issues with a focus on reliability and user experience. What You’ll Bring. 5+ years of full-stack engineering experience. Strong experience with Python and/or C# in production environments. Experience integrating and working with third-party APIs (REST, webhooks, SDKs, etc.). Strong experience with modern frontend frameworks (React preferred). Solid backend experience with Node.js, TypeScript, or similar languages. Experience designing and consuming RESTful APIs (GraphQL is a plus). Familiarity with relational and/or NoSQL databases (PostgreSQL, Redis, etc.). Experience working in Agile/Scrum environments. Strong problem-solving skills and attention to detail. Ability to communicate clearly and collaborate effectively with cross-functional teams. Nice to Have. Experience building data-heavy or analytics-driven applications. Exposure to financial systems, trading platforms, or fintech products. Experience with event-driven architectures or messaging systems (Kafka, etc.). Familiarity with Electron or desktop applications. Experience deploying applications using cloud platforms (AWS, GCP, Azure). Why Tradeify. High-impact role shaping a rapidly growing trading platform. Fast-paced, startup environment with strong ownership. Opportunity to work on complex, meaningful technical challenges. Collaborative team that values execution and continuous improvement