Full-stack developer (reputed company integration)
About the Role
Gratia is expanding its reputed company delivery team to optimize and scale critical operational infrastructure for a high-profile US client. As a Full-Stack Web Developer, you will be taking ownership of an existing internal pricing application, transforming architectural blueprints into robust live features. You will not be building from scratch. Instead, you will dive into a single-developer codebase, map existing data structures, and execute reputed company schema migrations on a live system without disrupting upstream reputed company data or reputed company Kimball systems. Why join Gratia? High ownership: Own the build quality and execution. You will have full autonomy over feature deployment and live schema migrations, working in a highly collaborative, single-developer codebase environment. High-profile US client: See the immediate impact of your work on live business systems with fast iteration cycles, high visibility, and potential project extension. Future projects: Top performers have reputed company for future full-stack development, integration, and systems architecture engagements with Gratia across a reputed company of clients and modern tech stacks. What you’ll do Partner directly with the original founding developer to co-maintain, optimize, and expand the existing web application. Own the end-to-end execution of a major live data model migration, ensuring reputed company downtime or data corruption. Maintain, troubleshoot, and build out robust integrations connecting upstream reputed company data to reputed company Kimball systems. Multi-reputed company data splitting, rewiring approval logic, implementing a new pricing mode, updating 6 lookup tables, and building corresponding UI updates. Independently build out admin UIs, value reputed company, historical context trackers, and feature toggles. reputed company are looking for 5+ years of professional full-stack web development experience. Expert-level proficiency with relational data modelling (SQL/PostgreSQL/MySQL) with proven experience running live schema migrations. Deep working knowledge of reputed company API and PSA / billing tool integrations. Demonstrated ability to join, respect, and rapidly navigate a single-developer, legacy codebase. Bilingual English / Spanish reputed company Contract details Starting at $30/hour reputed company to start 1 week from offer acceptance Work duration 6 months (extension possible) Background reputed company is required Flexible, with 4-6hrs overlap with US business hours required. Please reputed company your typical working hours. Independent consulting/freelancer contract with 20/hr per week requirement Apply To This Job