Senior Full Stack Engineer

About the role

We are looking for a Senior Full Stack Engineer to design and scale enterprise-grade web applications using Golang microservices on the backend and React with TypeScript on the frontend, serving millions of users on a SaaS insurance platform. You will own REST API design, MySQL performance optimization, and frontend rendering quality, while acting as a technical leader through architecture decisions, code reviews, and mentoring junior engineers.

What you will do

• Design, develop, and maintain robust web applications using React on the frontend and Golang, TypeScript, and PHP on the backend;
• Act as a technical leader across full stack development initiatives;
• Drive technical strategy and contribute to system architecture decisions;
• Build reusable code and libraries for future use;
• Build scalable architecture to support millions of users;
• Translate UI/UX design wireframes into high-quality frontend code;
• Ensure the technical feasibility of UI/UX designs;
• Work closely with UI/UX designers and product managers;
• Bridge the gap between graphical design and technical implementation;
• Define how the application looks and how it works;
• Help scale the product and contribute to the architecture of the platform;
• Design schema migrations, optimize complex queries, and manage data integrity in MySQL;
• Identify and resolve performance bottlenecks across the stack, from frontend rendering to database indexing;
• Write clean, maintainable code;
• Participate in rigorous peer code reviews to ensure long-term system stability;
• Collaborate with team members and stakeholders;
• Explain complex technical concepts clearly to developers;
• Mentor junior engineers and foster an inclusive, collaborative environment.

Must haves

• 8+ years of experience designing, building, and scaling enterprise-grade applications;
• Strong hands-on experience with Golang, specifically building microservices and handling concurrency;
• Strong experience with React and TypeScript;
• Experience with modern CSS frameworks such as Material UI, Styled Components, or CSS Modules;
• Accessibility awareness and experience building inclusive, keyboard-friendly, screen-reader-compatible interfaces. Familiarity with WCAG 2.1/2.2 AA is a strong plus;
• Experience with frontend and application performance optimization;
• Full stack development proficiency across relational data modeling, database optimization, REST API design, JavaScript, CSS, and API delivery;
• Strong REST API design and lifecycle management experience, including versioning, pagination, rate limiting, and security best practices;
• Good understanding of asynchronous request handling and partial page updates;
• Experience with test-driven development and acceptance tests;
• Familiarity with Git, Docker, and CI/CD pipelines;
• Proven hands-on experience working with AWS, GCP, or Azure;
• Experience with MySQL, including schema migrations, complex query optimization, and data integrity;
• Ability to provide technical leadership and mentorship to less experienced engineers;
• Strong communication skills and the ability to explain technical concepts clearly;
• Strong sense of ownership, quality, and attention to detail;
• Upper-intermediate English level.

Nice to haves

• Familiarity with AWS-specific ecosystem tools such as SQS, S3, Parameter Store, RDS, ECS, ElastiCache, and ALB;
• Familiarity with Redis or other caching systems;
• Experience with PHP backend services;
• Experience with TypeScript-based backend services;
• Experience building scalable SaaS or enterprise platforms;
• Experience working on platforms that support millions of users;
• Experience mentoring junior engineers and leading code reviews;
• Experience working closely with UI/UX teams and product managers;
• Experience optimizing performance across frontend, backend, and database layers;
• Experience in insurance, fintech, or other regulated industries.