Senior Full Stack Software Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full Stack Software Engineer based in United States.This role sits at the core of building and scaling a modern, identity-driven transaction platform designed to bring trust into critical digital interactions. You will work across the full stack to design, develop, and maintain customer-facing features that power secure, high-impact workflows such as identity verification and digital transactions. The position involves close collaboration with product, engineering, and user experience teams to deliver reliable, scalable, and high-quality software. You will contribute to architectural decisions, participate in production support, and help improve engineering practices across the team. This is a highly collaborative, mission-driven environment where autonomy, ownership, and product impact are central to day-to-day work. The role is ideal for engineers who enjoy working across backend, frontend, and infrastructure in fast-moving product teams.AccountabilitiesDesign, build, and maintain end-to-end features across full-stack applications supporting identity-assured transaction workflows.Collaborate with product and engineering teams to define requirements, evaluate trade-offs, and deliver scalable technical solutions.Develop high-quality, performant, and reliable code using modern web technologies across backend and frontend systems.Troubleshoot complex production issues and ensure system stability across customer-facing applications.Participate in code reviews, mentoring, and engineering best practices to improve overall team performance.Contribute to technical documentation, system design discussions, and continuous improvement of engineering processes.Participate in on-call rotations and support production systems following established training and escalation processes.Work across APIs, databases, integrations, and cloud infrastructure to support end-to-end product functionality.Requirements5+ years of experience building complex, customer-facing web applications.Strong proficiency with Ruby on Rails and React in production environments.Experience working across full-stack systems including APIs, databases, and cloud-based architectures.Familiarity with GraphQL, AWS, and modern distributed systems is a strong plus.Experience in regulated environments such as identity verification, e-signature, or fintech is preferred.Strong understanding of software engineering best practices including testing, code quality, and system design.Ability to take ownership of features from design through production deployment.Strong problem-solving skills with a bias toward action and practical solutions.Excellent communication and collaboration skills, with the ability to work independently when needed.Comfortable learning new technologies and adapting across different parts of the stack.BenefitsComprehensive medical, dental, and vision insurance coverageLife insurance and short- and long-term disability coverage401(k) plan with 4% employer match starting on hire dateUnlimited sick leave and vacation policy14 paid company holidays annually12 weeks of paid parental leaveSabbatical program after 5 years of serviceHealth reimbursement support for fertility and gender affirmation careMonthly stipends for remote work, wellness, and professional developmentLunch credit program and additional employee perksInclusive, mission-driven culture focused on trust, ownership, and innovationHow Jobgether WorksWe use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.We appreciate your interest and wish you the best! Why Apply Through Jobgether?Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.