Senior Full-Stack Engineer

Techconnect; Jakarta Pusat; On-site; IDR 334,800,000 - 669,600,000; Full time

Job summary

Techconnect in Jakarta Pusat is seeking a Senior Full-Stack Engineer to build a data-intensive M&A deal-tracking platform. You will ship polished React UIs and design backend systems handling document ingestion, async pipelines, and AI agent orchestration.

You'll own AI-powered features with LangGraph, integrate Anthropic SDK, and collaborate with product to deliver feature releases gated behind feature flags. Proficiency in Next.js, TypeScript, PostgreSQL, and cloud infra is required.

Qualifications

• 5+ years of full-stack experience with React, Next.js App Router, and TypeScript.
• Strong backend skills: RESTful APIs, PostgreSQL modeling, and ORM usage (Drizzle or Prisma/TypeORM).
• Experience wiring up AI SDKs and LangGraph, including prompt engineering and streaming.
• Experience with async job patterns, queues, and retry handling.
• Proficiency with Tailwind CSS and component libraries (Radix UI / shadcn/ui).
• Experience with AWS services (S3, SES, RDS) or equivalent.

Responsibilities

• Build & maintain the full stack from Next.js app routes to PostgreSQL schema and migrations.
• Own AI-powered features using LangGraph and Anthropic SDK.
• Design backend systems with clean architecture and async job queues.
• Write unit tests (Vitest) and Playwright end-to-end tests; participate in code reviews.
• Collaborate with product and deal teams to translate business requirements into technical features.

Skills

React, Next.js App Router, TypeScript

RESTful API design, PostgreSQL ORM

LangGraph integration

Async job pipelines

Tailwind CSS / Radix UI / shadcn/ui

AWS (S3/SES/RDS)

Tools

Drizzle ORM

PostgreSQL ORM

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

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:

• Multi-agent orchestration experience
• Graph database exposure (Neo4j)
• Terraform or infrastructure-as-code
• Vercel platform (feature flags, Edge Config, Fluid Compute)
• Python for data pipeline work

Stack:

Next.js 16 · TypeScript · Drizzle ORM · PostgreSQL · Neo4j · LangGraph · Anthropic Claude · Vercel AI SDK · AWS (S3 / SES / RDS) · Tailwind CSS · Recharts · React Force Graph · Vitest · Playwright · Vercel