Senior Full Stack Software Engineer

Full Stack Engineer - Payments & FinTech Web Applications Location: Remote - Based in EST or GMT+1Compensation: $120K - $150KWe are a high-growth technology company building a robust FinTech and payments platform. We are seeking an experienced Full Stack Engineer with strong product sense and deep technical expertise to design and build the secure, scalable, and high-performing web applications that power our platform. This role requires translating complex backend financial systems into intuitive, reliable user experiences.You will own the development lifecycle of web applications from design through release, working across the full stack with an emphasis on the frontend user experience. You will collaborate closely with backend teams, ensuring that all features prioritize performance, security, and scalability. You will be expected to treat UI components and APIs as products, maintaining high standards for code quality and architectural clarity.What You'll Do:Application Development: Build, optimize, and maintain web applications using React, TypeScript, NestJS, and Node.jsAPI Integration: Collaborate with backend engineers to design and consume secure, efficient APIs (REST)UX Translation: Translate complex financial and transactional workflows into clear, usable, and accessible interfacesArchitecture & Standards: Architect and implement front-end systems with strong attention to scalability, maintainability, and performance. Ensure accessibility, responsiveness, and cross-browser consistencyLeadership & Mentorship: Lead feature delivery end-to-end, review code, share best practices, and mentor peers to maintain a high engineering standardReliability: Troubleshoot and resolve production issues, ensuring reliability and data integrity for a transaction-heavy platformRequirementsExperience: 5+ years of professional front-end or full-stack software engineering experienceCore Expertise: Strong expertise in React, TypeScript, and web application architectureBackend Proficiency: Proven experience with backend technologies including Node.js and NestJSDatabase: Experience with data stores like MongoDB or PostgresIntegration & Security: Proven experience integrating with backend APIs and handling data securelyDesign for Scale: Experience designing for scalability, maintainability, and fault tolerance in web applicationsSoft Skills: Excellent communication and collaboration skills across cross-functional teamsPreferred Experience (Nice-to-Have):Exposure to financial, payments, or other transaction-heavy domainsExperience contributing to or maintaining shared design systems or UI librariesExperience with Cypress and E2E librariesKnowledge of infrastructure and deployment (AWS, Kubernetes, Terraform)Familiarity with real-time data or event-driven architectures, or experience working in regulated environments (SOC2, ISO27001)BenefitsImpact: Directly contribute to the core user experience of a high-growth payments and FinTech platformTechnology: Work with a modern and robust stack: React, TypeScript, Node.js, NestJS, MongoDB/Postgres, Docker, Kubernetes, and DatadogCulture: Collaborative environment that favors simplicity, clarity, and continuous improvement, prioritizing developer experience and resilienceGrowth: Opportunity to mentor peers and drive technical standards across the organizationDue to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.Commitment to Equality and Accessibility:At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd's Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.