Senior Full-Stack Engineer

Techconnect.id; Kebayoran Baru; On-site; IDR 450,000,000 - 750,000,000; Full time

Job summary

Techconnect.id is building a data-intensive M&A deal-tracking platform. We seek a Senior Full-Stack Engineer proficient in React, Next.js, and TypeScript to deliver polished UIs and robust backend systems handling document ingestion and AI-driven orchestration.

You will own AI-powered features, design backend services with clean architecture, and ensure quality through unit and end-to-end testing. Collaborate across teams to translate business needs into scalable technical solutions.

Qualifications

• 5+ years of full-stack experience with React, Next.js, and TypeScript in strict mode.
• Experience designing RESTful APIs and relational schemas (PostgreSQL).
• Proficiency with ORM tools (Drizzle, Prisma, or TypeORM).
• Experience wiring up AI SDKs (LangGraph) and prompt engineering.

Responsibilities

• Build and maintain the full stack from Next.js App Router pages to PostgreSQL schema and background workers.
• Own AI-powered features using LangGraph, Anthropic Claude, and Vercel AI SDK.
• Design backend systems with Drizzle ORM, clean architecture, and async job queues.
• Write unit tests (Vitest) and Playwright end-to-end tests; participate in code reviews.
• Translate business requirements into technical specs and collaborate on feature releases gated by flags.

Skills

React

Next.js

TypeScript

REST API design

PostgreSQL

AI integration

LangGraph

Anthropic Claude

Vercel AI SDK

Tailwind CSS

Testing (Vitest)

Playwright

AWS

Tools

Drizzle ORM

Prisma

TypeORM

LangGraph

Anthropic Claude

Vercel AI SDK

Tailwind CSS

Vitest

Playwright

PostgreSQL

Job description

We are building a data-intensive M&A deal-tracking platform - a web application where investment bankers manage pipelines, process documents, and surface AI-driven insights. We're looking for a Senior Full-Stack Engineer who is equally comfortable shipping polished React UIs and designing backend systems that handle document ingestion, async job pipelines, and AI agent orchestration.

Key Responsibilities

• Build & maintain the full stack - from Next.js App Router pages and API routes through to the PostgreSQL schema, Drizzle migrations, and background job workers
• Own AI-powered features - integrate and extend LangGraph agents (document classification, structured extraction, company enrichment) using the Anthropic SDK and Vercel AI SDK
• Design backend systems - model new domain concepts in Drizzle ORM, write service and repository layers following clean architecture, and queue async work through the jobs table
• Drive quality - write unit tests (Vitest) and Playwright e2e tests for every feature; participate in code reviews
• Collaborate across functions - translate business requirements from the deal team into technical specs, and work with product on iterative feature releases gated behind feature flags

Requirements

Must-Have Skills:

• 5+ years of full-stack experience; strong in React, Next.js App Router, and TypeScript (strict mode)
• Solid backend skills: RESTful API design, relational database modeling (PostgreSQL), and ORM usage (Drizzle or Prisma/TypeORM)
• Experience wiring up AI SDK or LangGraph - prompt engineering, tool/function calling, streaming responses
• Familiarity with async job patterns - queuing work, tracking state in a jobs table, handling retries
• Proficiency with Tailwind CSS and component libraries (Radix UI / shadcn/ui)
• Experience with cloud infra on AWS (S3, SES, RDS) or equivalent

Nice-to-Have:

• Terraform or infrastructure-as-code
• Python for data pipeline work

Stack:

Next.js 16

• TypeScript
• Neo4j
• LangGraph
• Anthropic Claude
• Vercel AI SDK
• AWS (S3 / SES / RDS)
• Tailwind CSS
• Recharts
• React Force Graph
• Vitest
• Playwright
• Vercel

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