Senior Full-stack Engineer (Backend Heavy) - HealthTech

We are looking for a full-stack software engineer with a strong backend focus to join our engineering team.This role sits at the intersection of LLM-powered conversational AI, backend systems, cloud infrastructure, and modern web and mobile applications. While you will contribute across the stack, the core of this role is designing and building backend systems and LLM applications that power our AI-driven experiences. You will work on integrating and operating large language models, shaping conversational workflows, and ensuring these systems are reliable, performant, and production-ready. Front-end development using React and React Native supports these capabilities but is not the primary focus of the role. This position is ideal for an engineer who enjoys building real-world LLM applications, thinking deeply about system behavior in production, and taking ownership in a fast-moving startup environment.

Responsibilities

• Write production-quality code daily, with an emphasis on backend systems

and LLM-powered features.

• Design, build, and evolve backend architectures that support conversational AI and health-focused LLM applications.
• Develop, integrate, and maintain LLM applications, including conversational flows, orchestration logic, and AI-driven services.
• Apply prompt engineering techniques to improve response quality, reliability, and safety.
• Optimize LLM-backed systems for latency, concurrency, uptime, and cost efficiency.
• Build and maintain APIs and microservices that power web, mobile, and device-level experiences.
• Contribute to web and mobile applications using React and React Native, primarily to enable and integrate backend and AI functionality.
• Collaborate closely with a team of high-performing engineers across product, infrastructure, and AI.
• Collaborate closely with a team of high-performing engineers across product, infrastructure, and AI.
• Gain exposure to adjacent areas such as radar data pipelines, embedded devices, AWS infrastructure, and Kubernetes-based deployments., specializes in custom web and mobile software development firm that leverages global facilities, senior engineers, more than 10 years of experience and methodologies to help you reduce operating costs and shorten timelines

• 5+ years of professional full-stack software engineering experience
• Strong backend skills using Java (preferred)
• Experience integrating LLMs or conversational AI via APIs (OpenAI, Gemini, Anthropic, etc.)
• Familiarity with LLM application patterns (prompt iteration, conversation state, RAG)
• Familiarity with React
• Experience building and operating services on AWS
• Hands-on experience with microservices, REST APIs, and CI/CD pipelines
• Familiarity with Docker and Kubernetes in cloud-native environments
• Ownership mindset and comfort working in a startup environment

• Highly Competitive USD Pay: Earn an excellent, market-leading compensation in USD, that goes beyond typical market offerings.
• Paid Time Off: We value your well-being. Our paid time off policies ensure you have the chance to unwind and recharge when needed.
• Work with Autonomy: Enjoy the freedom to manage your time as long as the work gets done. Focus on results, not the clock.
• Work with Top American Companies: Grow your expertise working on innovative, high-impact projects with Industry-Leading U.S. Companies.

At Truelogic we are a leading provider of nearshore staff augmentation services headquartered in New York. For over two decades, we've been delivering top-tier technology solutions to companies of all sizes, from innovative startups to industry leaders, helping them achieve their digital transformation goals. Our team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies on their most impactful projects. Whether collaborating with Fortune 500 giants or scaling startups, we deliver results that make a difference., Why You'll Like Working Here * A Culture That Values You: We prioritize well-being and work-life balance, offering engagement activities and fostering dynamic teams to ensure you thrive both personally and professionally. * Diverse, Global Network: Connect with over 600 professionals in 25+ countries, expand your network, and collaborate with a multicultural team from Latin America. * Team Up with Skilled Professionals: Join forces with senior talent. All of our team members are seasoned experts, ensuring you're working with the best in your field., About Truelogic Software 201-500