Senior Full Stack Software Engineer

At Keystone AI , our software supply chain security and threat intelligence solutions have become essential to advancing cybersecurity maturity around the globe. We're on a journey to expand adoption and accelerate growth by hiring top talent across the security industry. Notable breaches such as SolarWinds, CircleCI, and 3CX have elevated software supply chain security as a top initiative across every organization developing or purchasing software. Only Keystone AI delivers the software package analysis speed and intelligence needed to protect against this critical area of risk. Our vision is clear. Arming every company with end-to-end insights to ensure development releases securely, IT purchases safely, and the SOC can effectively detect, isolate, and respond. Your future role as a Senior Software Engineer is extremely important for the success of our solution – a Spectra Assure platform for software assurance. This is a game-changing opportunity. Our company is at the forefront of innovation, with many aspects built from scratch, fostering an engineering-driven approach. We prioritize developer experience and the development of high-quality, well-documented, and tested code within our Research organization. You and your teammates will work on developing a scalable and resilient SaaS platform. You will also be able to directly influence the architecture decisions and will be responsible for developing large parts of the new product. We are looking for people who can work independently, but also be a part of a team, and who adhere to the best practice engineering principles for clean and maintainable code. Crucially, if you identify more with being a skilled developer familiar with frontend technologies than strictly a frontend developer, you'll be a great fit for our team. RESPONSIBILITIES Develop a scalable and resilient SaaS platform, ensuring seamless integration between frontend and backend components for optimal performance and stability. Influence architecture decisions by offering strategic insights and recommendations based on expertise and best practices. Write, maintain, and optimize efficient, reusable, and reliable TypeScript and Python code. Stay up to date with industry best practices, emerging technologies, and modern design patterns. Translate UX designs into high-quality, user-friendly interfaces. Diagnose, troubleshoot, document, and resolve technical issues to maintain system reliability. Oversee and execute enterprise application deployments in production environments. Engage proactively with the product, understand its features, and contribute to its continuous improvement. Take technical ownership of complex feature development, ensuring scalability and maintainability. REQUIRED SKILLS 7+ years of experience in software development Advanced knowledge of programming in Typescript (Advanced knowledge of HTML5, CSS3 and React framework) Good knowledge of programming in Python or other OO languages Experience with setting up and maintaining frontend and backend tooling (build and test) Experience in writing and maintaining a large codebase, making decisions that benefit long-term maintainability of such codebase Fluent English communication skills (written and spoken) are essential for this role. Ability to work independently and as part of a team Experience with implementing complex workflows Experience with Docker and related technologies A BIG PLUS Experience with Redux Toolkit, Material-UI, Webpack, and Storybook Experience with Django, PostgreSQL Experience with writing secure code WHAT WE OFFER Benefits & Perks: Designed for How You Work, Live, and Grow At Keystone AI , we believe great work starts with feeling supported. We meet all statutory employment requirements in Ireland and go beyond them. Ensuring you feel valued, secure, and set up to thrive both professionally and personally. Statutory Benefits (Ireland) Paid annual leave, including public holidays Statutory sick pay and parental leave PRSI contributions, providing access to state welfare benefits A safe, inclusive, and compliant work environment And because we believe in supporting the whole employee experience, Beyond statutory benefits. We offer a thoughtfully designed total rewards package and additional perks that supports your well-being, growth, and long-term success. Compensation & Financial Security A competitive compensation package, including base salary and performance-based bonus or commission (role-dependent), as well as equity, so you share in the success you help build. Work-Life Balance & Flexibility Quarterly Wellness Weekends: company-wide 3-day breaks built into the year to truly rest and reboot. Monthly phone allowance to help offset mobile expenses Medical allowance to support your healthcare needs Volunteer Time Allowance: 8 paid hours annually to support a charitable organisation you care about Complimentary Calm app membership to support mindfulness, focus, and stress management Growth, Le