Senior FullStack Engineer

abra•Wheaton, IL

About The Position

abra R&D is looking for a FullStack Engineer to build user-facing products and internal tools on top of their AI and data platform. This role combines frontend, backend, and product thinking, with strong ownership over design and implementation. The engineer will take part in building a next-generation agentic analytics platform, a real-time database optimized for AI agents at scale.

Requirements

4–6 years of experience as a full-stack engineer
Strong proficiency in TypeScript, React, and Node.js (NestJS preferred)
Experience building production-grade web applications end-to-end
Ability to design systems and features independently (not just implement tasks)
Strong understanding of frontend architecture, state management, and API design
Good product sense and attention to UX and usability
B.Sc in Computer Science or equivalent practical experience building production systems

Nice To Haves

Experience working on data-heavy or analytics products
Experience integrating with APIs, real-time systems, or streaming data
Familiarity with AI/LLM-powered products
Background from elite technical units or programs (e.g., 8200 or equivalent)
Experience working in fast-paced startup environments

Responsibilities

Build and own end-to-end features across frontend and backend
Develop modern web applications using React and TypeScript
Design and implement backend services using NestJS
Translate product and UX requirements into clean, scalable system designs
Work closely with AI and platform teams to integrate agent-driven capabilities into products
Build data-rich interfaces for analytics and real-time systems
Ensure performance, reliability, and usability across the stack

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