Junior Full-Stack Engineer

On behalf of our client, a payment-provider orchestration company, we are looking for a Junior Full-Stack Engineer to join their growing engineering team. About Our Client Our client is building a payment-provider orchestration platform that helps businesses integrate, manage, and switch between payment services without rebuilding their systems each time. They value thoughtful engineering, simple solutions, open communication, and products that work reliably. Their engineers contribute across the whole product lifecycle — shaping requirements, weighing technical trade-offs, building, testing, and deploying. If you want to grow across the full stack, take real ownership, and help shape a growing fintech product, we would like to hear from you. The Role We are looking for a Junior Full-Stack Engineer to help build web applications across the frontend, API, and data layers. You will work mainly in TypeScript, React, Next.js, Node.js, and PostgreSQL, alongside product, design, and engineering. You will start with clearly scoped tasks and take on larger features as your confidence grows, with regular guidance and code review from experienced engineers. You do not need experience with every technology in the stack. They hire for fundamentals, curiosity, and how quickly you learn. Their Stack TypeScript · React · Next.js · Tailwind CSS · Node.js · Express · PostgreSQL · Drizzle ORM · Zod · AWS · Git AI tooling: Claude Code CLI · Codex CLI · AI-assisted code review How They Work with AI AI-assisted development is part of how the team builds, not an optional extra. Their engineers use agentic coding tools such as Claude Code CLI and Codex CLI every day — to write and refactor code, explore unfamiliar parts of the codebase, generate tests, and support code review. They also build AI-driven features into the product itself, so you will work with AI frameworks and APIs as part of normal engineering work. You are expected to use these tools thoughtfully. You should be able to explain any code you submit, review AI-generated output critically rather than accepting it, and understand where these tools help and where they do not. You do not need prior experience with them — but you do need to be genuinely open to working this way, and willing to learn quickly. What You Will Do Build and improve product features in TypeScript, React, Next.js, and Node.jsCreate responsive, accessible user interfacesHelp build and integrate REST APIs with ExpressModel and query relational data with PostgreSQL and Drizzle ORMValidate data at application boundaries using ZodWrite unit and integration tests, with support from the teamInvestigate bugs and ship fixes that hold up over timeUse AI coding tools such as Claude Code CLI and Codex CLI in your daily workflow, and review their output criticallyWork with AI frameworks and APIs as the team builds AI-driven capabilities into the productTake part in code reviews, technical discussions, and deploymentsTake on more ownership as your skills and product knowledge grow What You Will Bring Around 1–2 years of professional experience, including internships or equivalent practical workSolid JavaScript or TypeScript fundamentalsWorking knowledge of React or another modern frontend frameworkA basic understanding of Node.js, REST APIs, and HTTPSome exposure to PostgreSQL or another relational databaseEvidence that you can build software — through professional work, internships, university, bootcamps, freelance projects, or personal projectsFamiliarity with Git-based workflows and automated testingGenuine openness to AI-assisted development — working daily with agentic coding tools such as Claude Code CLI or Codex CLI, and with AI frameworks in the productThe judgement to review AI-generated code properly and explain anything you submitStrong problem-solving skills and attention to detailComfort asking questions, receiving feedback, and acting on itClear written and spoken English What's on Offer Structured support — regular guidance, constructive feedback, and thorough code reviewsGrowing ownership — start with well-defined work and progress to owning complete featuresPrivate health insurance — support for your health and wellbeingLearning budget — for courses and certificationsModern tooling — paid access to leading AI coding tools and everything else you need to do your best workReal product experience — features that solve meaningful problems for real usersTechnical breadth — frontend, backend, databases, testing, and cloud infrastructureA collaborative team — open communication, honest feedback, and room for different perspectives