Junior Software Engineer

Responsibilities

• Build, ship and maintain features end-to-end - from React / Next.jsinterfaces through API routes, server-side logic and the database.
• Design and evolve the data layer: model schemas, write and reviewSQL, manage Postgres migrations in Supabase, and integrate financial data fromSnowflake.
• Build and maintain key integrations - Clerk authentication, theStripe billing system (subscriptions, seats and usage credits) currently indevelopment, and AI / financial-data providers.
• Own quality and reliability: write unit, integration and end-to-endtests, review code, and keep the platform performant, secure andwell-monitored.
• Diagnose and resolve production issues, and occasionally contributefixes, endpoints and data tasks to the Python / FastAPI service.

Requirements

• Proven experience building and shipping production web applicationsfull-stack with TypeScript and modern React - ideally Next.js (App Router).
• Strong backend fundamentals: designing and consuming REST APIs,writing solid server-side logic, and integrating third-party services.
• Strong relational-database and SQL skills - schema design, queryoptimization and migrations (PostgreSQL preferred).
• Comfortable owning work in an existing, actively-developed codebase;fluent with Git, pull requests and code review; disciplined about testing,performance and security.
• Clear written and verbal English; able to work independently,communicate trade-offs, and keep a small team in sync.
• Snowflake or other cloud data warehouses, and experience workingwith financial or market data.
• Stripe billing (subscriptions, usage-based billing, webhooks) andClerk or comparable authentication providers.
• Working knowledge of Python / FastAPI, plus our wider toolset:Tailwind, TanStack Query, Vercel, Upstash Redis and AI / LLM SDKs; a backgroundor interest in finance, investing or fintech is a plus.
• Polytechnic Diploma in ComputerScience
• Experience 1 to 6 years

Additional Information

PARALLAX Full-Stack Engineer Parallax is an AI-powered financial analytics platformserving retail investors, family offices, SMA managers and institutionalresearch teams. We are looking for a full-stack engineer to help build,maintain and scale the platform as part of our small, fast-moving team. Youwill work across the entire stack - UI, APIs, and the data layer - with a primaryfocus on our Next.js / TypeScript web platform and occasional work on ourPython / FastAPI analytics service. Technical Environment Frontend Next.js 15 (App Router) / React 18 / TypeScript, Tailwind CSS, Radix & shadcn UI, TanStack Query & Table; data visualization with Recharts and Tremor Backend Next.js API routes & server actions (Node / TypeScript), Zod validation Data Supabase (PostgreSQL) via the Supabase client and direct SQL (postgres.js, repository pattern); Snowflake for financial & market data Services Clerk (authentication & webhooks), Stripe (billing - in active development), Vercel AI SDK (Anthropic / OpenAI / others) Secondary parallax-api - Python / FastAPI analytics service (occasional work) Infra & QA Vercel & Render hosting, Upstash Redis caching; Vitest, Playwright, PostHog, Sentry

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