Senior Full Stack Developer (Typescript + Python)

Full Stack Developer

About You
You are a Senior Full Stack Developer who thrives inside real, messy, production systems, not greenfield prototypes. You have a track record of shipping features across the full stack, React/TypeScript on the frontend, Python/FastAPI or Node.js on the backend, and you know how to make dense, data-heavy interfaces feel fast and usable at real-world scale.
You're energized by working inside an existing architecture: reading the code that's already there, understanding why it was built that way, and making sound feature-level decisions without needing to redesign it from scratch. You use AI coding assistants daily, not as a shortcut but as a force multiplier, and you know how to validate what they generate. Above all, you care about outcomes: secure, well-built features that hold up in a multi-tenant SaaS environment and stand up to scrutiny from senior stakeholders.
Note: This is a 6-month temporary opportunity with the possibility of extension.

You Bring to Applaudo the Following Competencies:

• 5+ years of experience as a Full Stack Developer, with a demonstrated record of shipping production features independently.
• Strong, hands-on production experience with React and TypeScript, including MUI, styled-components, or an equivalent design-system component library.
• Proven experience building data-heavy enterprise UIs: admin and configuration screens, multi-level filtering, and large interactive tables via ag-Grid or equivalent, at real data volumes.
• Significant experience with either Python/FastAPI or Node.js, with working proficiency in the other.
• Solid SQL and hands-on PostgreSQL experience, including query optimization and relational data modeling.
• Experience implementing OAuth 2.0/Okta, JWT, and role-based access control in an API context.
• Demonstrated multi-tenant SaaS security practice: tenant isolation and data access controls.
• Effective daily use of AI coding assistants (Claude Code, Codex), with sound judgment validating generated output, and the ability to integrate LLM-backed features into a web application.
• Comfortable reading and working inside an existing application architecture without redesigning it.
• Strong autonomy: able to make and justify feature-level decisions without close oversight.
• Confidence defending technical choices verbally, in English, to senior stakeholders.
• Comfortable with async, written-first communication across a distributed team spanning Europe, India, and the Americas.

Nice to have:

• Snowflake experience, or data modeling/pipeline experience in a warehouse context.
• Mapbox GL or equivalent web geospatial visualization.
• amCharts or D3 for production data visualization.
• Nx or comparable monorepo tooling.
• Azure Web PubSub, Redis Cache, or Blob Storage.
• Prior exposure to architecture-level decision forums.

You Will Be Accountable for the Following Responsibilities:

• Author features across the commercial intelligence platform, spanning React/TypeScript UI, dense admin and configuration screens, and high-volume tabular interfaces (ag-Grid).
• Contribute to APIs in Python/FastAPI and Node.js, and write/optimize SQL against PostgreSQL.
• Design the granular functions and code structures inside each assigned story.
• Comply with the existing application architecture, and raise clearly where it needs to evolve.
• Absorb intermittent adjacent work — data pipeline and query changes, chart and map surfaces, AI-enabled feature integration — inside the existing architecture and against defined criteria.
• Implement secure functionality within a multi-tenant SaaS environment.
• Participate in Scrum ceremonies, code review, and technical discussion with senior stakeholders.
• Take ownership of authored code against documented acceptance criteria (architecture and product-level ownership sit with the attached architect and engagement lead).