Toptal: Senior Software Engineer for AI-Powered Banking Platform

<p> <strong>Headquarters:</strong> </p> <p>We are seeking a Senior Software Engineer to build and scale production-grade AI-powered financial products. This is a hands-on engineering role focused on backend platform development, AI integration, and distributed systems. The ideal candidate has strong experience with TypeScript, Python, cloud-native architectures, and applying LLMs in real-world production environments.</p><p>General Information</p><p>Our client is a fast-growing, Series A-backed AI company delivering agentic AI solutions to banks and credit unions. Their platform is already serving over 100 financial institutions and more than 10 million end users.</p><p>The Senior Software Engineer will work closely with the VP of Engineering, CTO, and CEO to design, build, and operate scalable backend services and AI-powered applications. This role combines platform engineering with practical AI implementation, requiring an engineer who enjoys building production systems rather than conducting AI research.</p><p>Tasks and Deliverables</p><ul><li>Design, develop, and maintain scalable backend services powering AI-driven financial products.</li><li>Own technical decisions across system architecture, APIs, data models, performance, security, and reliability.</li><li>Build backend applications using TypeScript and Python, while contributing to frontend functionality with JavaScript when needed.</li><li>Integrate LLMs and agentic AI capabilities into production software.</li><li>Design and implement distributed, cloud-native systems with strong observability and operational excellence.</li><li>Define engineering best practices around code quality, testing, deployment, and incident response.</li><li>Collaborate closely with product, design, data, and engineering leadership to deliver customer-facing features.</li><li>Utilize modern AI development tools to improve engineering productivity and software quality.</li></ul><p>Required Experience</p><ul><li>5+ years of professional software engineering experience building production-grade applications.</li><li>Strong proficiency in TypeScript and/or Python.</li><li>Experience designing scalable backend systems, APIs, and distributed architectures.</li><li>Strong knowledge of cloud platforms such as AWS or GCP.</li><li>Hands-on experience integrating Large Language Models (LLMs) into production applications.</li><li>Experience with prompt engineering and applying AI to solve real business problems.</li><li>Strong understanding of software architecture, scalability, performance optimization, reliability, and security.</li><li>Experience working in fast-paced product environments with significant technical ownership.</li><li>Bachelor's degree in Computer Science or related discipline.</li></ul><p>Preferred Experience</p><ul><li>Conversational AI, Agentic AI, NLP, or dialogue systems.</li><li>Fintech, banking, or regulated industry experience.</li><li>Startup experience building products from early stages through scale.</li><li>Experience with observability, CI/CD, Kubernetes, Docker, and modern DevOps practices.</li><li>Familiarity with AI developer tools such as Cursor or Claude Code.</li><li>Engagement Highlights</li><li>Build production AI systems used by millions of banking customers.</li><li>Work directly with executive engineering leadership on high-impact technical initiatives.</li><li>Hands-on engineering role with ownership across architecture, implementation, and delivery.</li><li>Opportunity to combine backend engineering expertise with practical LLM and agentic AI development.</li><li>Join a profitable, AI-first company building the next generation of intelligent financial services.</li></ul> <p><strong>To apply:</strong> <a href="https://weworkremotely.com/remote-jobs/toptal-senior-software-engineer-for-ai-powered-banking-platform">https://weworkremotely.com/remote-jobs/toptal-senior-software-engineer-for-ai-powered-banking-platform</a></p>