לוח משרות דרושים Senior Node.js Developer

A fast-growing fintech AI start up company, focused on eliminating fraud and chargebacks in online commerce, is looking for Senior Backend Engineer to join her core product team.
In this roll, you will build innovative, high-impact solutions that fight fraud and protect their customers revenue.
The company is located in Modi'in, central Israel. Hybrid work model.
Responsibilities:
Take a senior role in a talented engineering team and help build our market-leading product.
Design and implement core backend infrastructure: ingestion, algorithms, performance, and interactive services.
Build a scalable data platform for complex, high-volume data flows.
Own features end-to-end - design, build, deploy, measure, and maintain.
Work closely with Product on a top-tier SaaS PLG offering.
Help shape a high-standards, fun, professional engineering culture.

We are looking for a highly skilled Software Engineer to join our platform management team. This team is responsible for the development, scaling, and maintenance of our core platform, which serves as the backbone for our product offerings.

Youll work on backend technologies, designing and implementing features that drive our platforms growth, stability, performance and intelligence.

In this role, you will also help drive the integration of modern AI capabilities into our platform, including working with Large Language Models (LLMs), AI-driven workflows, and emerging paradigms such as Model Context Protocol (MCP).

If you are passionate about building scalable, high-performance systems, enjoy solving complex technical challenges, and excited about applying AI in real-world products, we would love to hear from you!

Key Responsibilities
Lead, design and build highly scalable and high-quality web applications by enforcing best practices around software engineering architecture and processes
Work with Model Context Protocol (MCP) or similar frameworks to enable structured interactions between systems and AI models
Raise the bar on engineering excellence by improving standard methodologies, producing best in class of code, documentation, testing, and monitoring
Identifying and resolving technical issues and performance bottlenecks.
Collaborate with cross-functional teams (including Product managers, DevOps, and Support) to ensure smooth feature releases and platform stability
Stay up to date with emerging technologies in backend engineering and AI/LLM ecosystems, and drive their adoption where relevant.

We are looking for a backend engineer who can design, build, and operate highly reliable Node.js services on AWS that enable generative‑AI capabilities across our products and internal workflows.
You will create scalable APIs, data pipelines, and serverless architectures that integrate large‑language‑model (LLM) services such as Amazon Bedrock, OpenAI, and open‑source models, enabling teams to safely and efficiently leverage generative AI.
Who You Are:
You have experience building Retrieval‑Augmented Generation (RAG) systems or knowledge‑base chatbots.
You're Hands‑on with vector databases such as Pinecone, Chroma, or pgvector on Postgres/Aurora.
Have AWS certification (Developer, Solutions Architect, or Machine Learning Specialty).
Experience with observability tooling (Datadog, New Relic) and cost‑optimization strategies for AI workloads.
Background in microservices, domain‑driven design, or event‑sourcing patterns.
What Youll Actually Be Doing
Design and implement REST/GraphQL APIs in Node.js/TypeScript to serve generative‑AI features such as chat, summarization, and content generation.
Build and maintain AWS‑native architectures using Lambda, API Gateway, ECS/Fargate, DynamoDB, S3, and Step Functions.
Integrate and orchestrate LLM services (Amazon Bedrock, OpenAI, self‑hosted models) and vector databases (Amazon Aurora pgvector, Pinecone, Chroma) to power Retrieval‑Augmented Generation (RAG) pipelines.
Create secure, observable, and cost‑efficient infrastructure as code (CDK/Terraform) and automate CI/CD with GitHub Actions or AWS CodePipeline.
Implement monitoring, tracing, and logging (CloudWatch, X‑Ray, OpenTelemetry) to track latency, cost, and output quality of AI endpoints.
Collaborate with ML engineers, product managers, and front‑end teams in agile sprints; participate in design reviews and knowledge‑sharing sessions.
Establish best practices for prompt engineering, model evaluation, and data governance to ensure responsible AI usage.

As a Staff Software Engineer, your impact is measured not just by the code you ship, but by your ability to foresee and prevent complex technical challenges before they arise. You will set the technological direction and elevate the performance of everyone around you.

In this role, you will operate with a cross-team perspective, looking beyond individual features to oversee entire systems, their integrations, and the department's long-term technical roadmap. You are a master at navigating ambiguity, taking high-level business goals and translating them into robust, scalable architectural solutions.

Specifically, your focus will be to:

Drive Strategic Architecture: Act as the "Technical Right Hand" to senior leadership of TI, providing the insights and technical strategy needed to make critical business decisions.

Solve High-Ambiguity Problems: Lead the discovery and execution of complex, unique technical challenges that lack a clear roadmap, ensuring they are resolved with long-term stability in mind.

Establish Engineering Excellence: Shape the engineering culture by setting gold standards for code quality, CI/CD processes, and testing frameworks. You will be responsible for authoring comprehensive Design Docs that streamline development and prevent costly architectural mistakes across the organization.

Mentor and Scale Talent: Act as a dedicated mentor to Senior Engineers, fostering a culture of continuous learning and technical growth.

Bridge the Gap: Align technical execution with product vision, ensuring our engineering efforts are always moving the needle for our customers.

Were looking for a Senior Software Developer who combines strong technical skills with product intuition and a sense of ownership. Youll work across the stack - from infrastructure to backend services and intuitive UI/UX - building scalable, high-impact systems that shape how organizations secure their AI.
What youll do
Own and run major features and subsystems end-to-end - youll take ideas from concept to production and beyond (monitoring, iteration, refinement).
Work across the full stack: infrastructure, platform, backend services, APIs, and UI/UX. Youll be comfortable shifting between how do we deploy this reliably to how does the user experience this.
Drive team culture of ownership, craftsmanship, iteration and delivery: were not just about shipping features but owning the outcome, learning fast, and improving continuously.
Mentor and support other engineers: bring in the best practices of maintainability, scalability, reliability, and product thinking.

Were looking for a Senior Backend Developer to join our mission. If youre passionate about building impactful products, thrive on working with cutting-edge AI technologies, and want to push the boundaries of whats possible, this role is for you.

Responsibilities
Design and develop the next generation of our leading SaaS platform, built on a Node.js microservices architecture and deployed in the AWS cloud.
Build enterprise-grade, high-performance, and scalable backend services following modern best practices and coding standards.
Continuously research, evaluate, and implement new technologies and tools to maximize development efficiency, maintainability, and quality.
Collaborate closely with Product Managers, Frontend Developers, and Designers to deliver robust APIs and seamless integrations that power innovative user experiences.
Leverage AI-driven development tools (such as Claude, Cursor, or LLM-based automation) to accelerate coding workflows, optimize performance, and maintain a competitive edge in the evolving tech landscape.