Senior Fullstack Engineer, Pulsate

• 6+ years of software engineering experience with strong fullstack expertise
• Demonstrated use of AI tools (e.g., Copilot, ChatGPT, Claude, Codeium) to improve development speed and quality
• Experience building or contributing to customer-facing features powered by AI or LLMs
• Expert-level experience with React, TypeScript, JavaScript, Node.js
• Proficient in backend languages such as Ruby or JavaScript-based frameworks
• Experience working with AWS (especially Lambda, DynamoDB, S3) and infrastructure-as-code tools
• Comfortable contributing to architecture, planning, and cross-team collaboration
• Strong written and verbal communication skills

Desirable

• We’re looking for a Senior Fullstack Engineer to join our remote-first, Series A SaaS startup building a marketing automation platform for banks and credit unions
• This is a high-impact role for an experienced engineer who thrives in fullstack environments and enjoys guiding architecture, mentoring peers, and taking ownership of systems across frontend, backend, and infrastructure
• You’ll be expected to demonstrate how you use AI tools (e.g., GitHub Copilot, ChatGPT, Code Interpreter, etc.) to accelerate your development workflow, improve code quality, and deliver faster
• Additionally, you should have experience building — or contributing to — production-ready features that leverage AI functionality, such as LLM integration, intelligent automation, or personalised user experiences powered by machine learning
• Proactively use AI tools to boost productivity, debug faster, and generate high-quality code
• Identify opportunities to integrate AI capabilities into the product to enhance customer value
• Design and deliver features using AI/ML tools (e.g., OpenAI APIs, vector databases, LLM agents)
• Stay informed on emerging AI tech trends and champion practical use in engineering processes
• Build and maintain modern web applications using React, TypeScript, and JavaScript
• Ensure code quality, reusability, and maintainability across multiple frontend repositories
• Implement clean architecture and UI patterns aligned with industry best practices
• Develop and maintain backend services (Node.js, Ruby) with reliable integrations to external systems
• Maintain services responsible for third-party data synchronisation, storage, and communication
• Ensure scalability and performance across backend modules and APIs
• Contribute to the transition from a monolithic codebase to a microservices-based architecture
• Define service boundaries, design communication protocols, and select appropriate technologiesDesign and deploy infrastructure using AWS services (Lambda, DynamoDB, S3, Route53) and SST framework
• Optimise performance, monitor systems, and ensure high availability
• Review code and provide constructive, empathetic feedback via pull requests
• Mentor teammates, guide architectural decisions, and support problem-solving efforts
• Lead sprint planning, prioritise engineering work, and help remove technical blockers
• Break down large features into well-defined tickets and technical documentation
• Apply secure development practices aligned with the needs of fintech and martech environments
• Ensure data protection and access control measures are in place across services and integrations
• Collaborate with stakeholders to meet customer and industry compliance expectations