Mid-Senior Full-Stack TypeScript Engineer (React, AWS)
Mid-Senior Full-Stack TypeScript Engineer (React, AWS)
Three Points
Job description
Location: Remote (Poland) - ability to meet in Poznan once per month
Type: Full-time
Experience level: Mid / Senior
About the company
Our client is an early-stage, product-driven startup led by experienced founders with deep backgrounds in large-scale distributed systems, AI-powered platforms, and enterprise SaaS. They are now expanding the engineering team to accelerate product development toward design partners and early adopters in 2026.
They’re building real-time Artificial Sales Intelligence that supports sales representatives during live customer conversations.
Their platform joins live sales calls, transcribes them in real time, and delivers context-aware guidance, dynamic sales playbooks and instant knowledge recall without increasing cognitive load for the rep. The goal is simple but ambitious: turn every sales call into a confident, high-impact conversation.
The Role
We are looking for a Mid-Senior Full-Stack Engineer who is comfortable owning features end-to-end from UI to backend to cloud infrastructure.
You will work directly on the company’s core product, building real-time user interfaces, scalable APIs, and cloud-native services that power live AI-assisted sales calls. This role is hands-on, highly technical, and suited to someone who enjoys solving complex problems in a fast-moving startup environment.
You will collaborate closely with the founders on product architecture, technical decisions, and delivery.
What You Will Do
Design, build, and maintain full-stack features using TypeScript across frontend and
backend
Develop responsive, real-time user interfaces in React
Build and evolve backend services and APIs running on AWS
Work with containerized services using Docker
Operate comfortably in a Linux-based development and production environment
Contribute to system architecture decisions for scalability, latency, and reliability
Collaborate via GitHub using modern workflows (PRs, code reviews, CI)
Debug, profile, and optimize performance in real-time systems
Work asynchronously and communicate clearly in a fully remote team
Must-Have Requirements
Strong commercial experience with TypeScript
Solid experience with React
Hands-on experience with AWS (e.g. EC2, ECS/EKS, Lambda, S3, IAM or
equivalents)
Comfortable working in Linux environments
Practical experience using Docker
Daily use of GitHub (or equivalent Git-based workflows)
Fluent spoken and written English
Proven ability to work effectively in a remote setup
Strong problem-solving mindset
Bachelor’s degree (BSc or equivalent) in Computer Science or a closely related
field
Should-Have Skills
Experience building APIs with Express
Familiarity with Tailwind CSS
Good understanding of algorithms and data structures
Working knowledge of network protocols (HTTP, WebSockets, streaming concepts)
Solid understanding of databases (SQL and/or NoSQL)
Nice-to-Have
Experience with LangChain or similar LLM orchestration frameworks
Familiarity with Auth0 or modern authentication/authorization systems
Experience using shadcn/ui
Previous experience in real-time systems, AI-powered products, or SaaS platforms
What We Offer
Opportunity to build a core product from an early stage, not just incremental
features
Direct impact on product direction and technical architecture
Work closely with experienced founders and a small, highly skilled team
Fully remote-first working environment
Competitive salary aligned with experience and responsibility
Meaningful equity participation for senior contributors
High level of autonomy, trust, and ownership
A product-focused culture that values clarity, quality, and real customer impact
This role is ideal for an engineer who:
Enjoys end-to-end ownership
Thinks in systems, not just components
Is comfortable with ambiguity and fast iteration
Cares deeply about product quality and real user value
Wants to help define the technical foundations of a new company
