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We are seeking a highly skilled OS Internals Team Lead to lead a group of talented developers in building cutting-edge, low-level system solutions across multiple platforms.
Key Responsibilities:
Lead and mentor a team of 5 developers, ensuring high-quality deliverables and professional growth.
Design, develop, and optimize system-level components for Windows and/or Linux.
Collaborate with cross-functional teams on system architecture, networking, and security challenges.
Drive innovation in offensive and defensive security methodologies.
Conduct in-depth research into the malware and threat landscape to develop advanced countermeasures.
Oversee driver development and integration across multiple platforms.

We are looking for a highly technical and creative User Comms Manager to lead our communication strategy across the entire user journey. Sitting within the Marketing team and working hand-in-hand with Product, you will own how we talk to our users-from the moment they discover AI to when they become power users.
This is a unique position at the intersection of Marketing, Product, Engineering, and AI. You won't just be writing copy; you will be the architect of our CRM ecosystem, building AI-driven flows that deliver deeply personalized messages based on a users specific lifecycle state. You are a self-starter who blends analytical rigor with a sharp eye for creative copy.
What Youll Do:
End-to-End Lifecycle Comms: Own the strategy and execution of all user communications across acquisition, activation, retention, and re-engagement channels.
CRM Architecture: Act as the power user and admin for our CRM stack (e.g., Braze, Customer.io), ensuring data is flowing correctly and journeys are optimized.
Technical Stack Management: Partner closely with Product and Engineering teams to manage and optimize our communication infrastructure and delivery tools.
AI-Personalized Messaging: Collaborate with AI teams to design and deploy automated flows that generate personalized messages tailored to each user's unique behavior and journey stage.
Experimentation & Optimization: Lead an aggressive A/B testing roadmap to improve key business metrics, including profitability, conversion rates, and long-term retention.

we aren't building a single, generic chatbot. We are building a Composable AI Microservice Architecture, a swarm of hundreds of hyper-specialized AI services, each meticulously "programmed" to solve small, focused tasks with high precision. This fleet powers Ava, our AI support engine, and a suite of cutting-edge generative tools for travel and expense management.
As a Senior AI Ops / MLOps Engineer, you are the architect of the platform that makes this scale possible. You will move beyond traditional MLOps to manage a "factory" of Language Models. Your challenge is one of orchestration and standardization, ensuring that every service in the swarm meets a rigorous bar for quality, reliability, and cost-efficiency.
What You'll Do:
Orchestrate the AI Fleet: Build and own the runtime environment for 100+ specialized AI services. Manage model routing, context versioning, and standardized memory/history stores.
High-Density Inference Optimization: Design and implement SageMaker Multi-Model Endpoints (MME) and Inference Components to serve multiple tuned SLMs per GPU, maximizing hardware utilization while minimizing latency.
Deterministic Service Excellence: Treat reliability as a layered engineering problem. Build deterministic "shells" around probabilistic LM outputs, prioritizing data-layer validation and strict serialization.
Automated Evaluation & Observability: Implement "LLM-as-a-judge" patterns and automated benchmarking to detect semantic drift and hallucinations across the fleet before they impact the user.
Standardize the Workflow: Obsess over building reusable patterns and Terraform-based infrastructure that eliminate "snowflake" configurations, allowing us to deploy new specialized AI tasks in minutes.
Agency Strategy: Partner with AI Researchers to find the "Goldilocks zone" for agentic autonomy-balancing the flexibility of LLM tool-use with the precision required for production stability.

We are redefining the travel industry with a truly autonomous platform powered by proprietary Agentic AI. As an Automation Engineer, youll play an essential part in building and scaling the testing infrastructure that validates our mission-critical AI workflows. This is a high-scale environment where you will use Cypress to solve unique challenges in autonomous decision-making, collaborating globally to deliver a platform trusted by major enterprises.
What Youll Do:
Architect the Cypress E2E Framework: Design, build, and scale a robust, high-performance end-to-end automation framework using Cypress to validate our core web application workflows, ensuring the complex UI accurately reflects the autonomous decisions made by our AI agents.
Validate Autonomous Logic via the UI: Develop sophisticated test harnesses within Cypress that interact with the application and perform data validation (e.g., intercepting network requests) to verify the intricate decision-making, cost optimization, and safety constraints of our self-governing AI agents.
Drive CI/CD Velocity: Take ownership of the testing lifecycle by integrating fast-running, automated Cypress tests directly into our CI/CD pipelines, serving as the final, reliable gate that allows the engineering team to deploy multiple times daily with zero functional regressions.
Performance and API Testing: Utilize Cypress's capabilities for API-level testing to quickly validate backend microservices, augmenting UI tests where necessary to maintain speed and reliability.
Contribute to Engineering Culture: Champion best practices in testability, reliability, observability, and code coverage, mentoring fellow engineers and fostering a culture of technical excellence across the platform.
Solve Unique Problems: Apply deep technical expertise and creativity to address novel testing challenges related to LLMs, such as ensuring the AI-generated UI flows are robust and predictable.

We are seeking a skilled Backend Engineer to join our team and implement advanced AI solutions in our travel and expense management products. The ideal candidate will have strong backend engineering expertise and enthusiasm for working with cutting-edge AI technologies.
About the Role:
You'll be responsible for designing and implementing backend services that integrate AI capabilities including large language models (LLMs), retrieval-augmented generation (RAG), and conversational interfaces into our consumer-facing products. This is an opportunity to expand your expertise into AI while leveraging your strong engineering foundation.
What Youll Do
Design and develop scalable, high-performance backend services and APIs.
Implement integrations with AI platforms and services.
Work with AI specialists to translate AI capabilities into production-ready features.
Ensure high reliability, performance, and security of AI-powered systems.
Collaborate with product and engineering teams to gather requirements and deliver solutions.

We are seeking a skilled Senior Backend Engineer to join our team and help us build Cognition, a multi-agent AI platform. The ideal candidate will have strong backend engineering expertise and enthusiasm for working with cutting-edge AI technologies.You'll be responsible for designing and implementing backend services that integrate AI capabilities including large language models (LLMs), retrieval-augmented generation (RAG), and conversational interfaces into our consumer-facing products. This is an opportunity to expand your expertise into AI while leveraging your strong engineering foundation.
What Youll Do:
Design and develop scalable, high-performance backend services and APIs
Implement integrations with AI platforms and services
Work with AI specialists to translate AI capabilities into production-ready features
Ensure high reliability, performance, and security of AI-powered systems
Collaborate with product and engineering teams to gather requirements and deliver solutions

We are looking for a passionate Senior BackEnd Software Engineer to join our growth PLG team in TLV, designing and developing core product features and services that power our app used by thousands of travelers on a daily basis using the latest cutting edge AI technologies . You will work closely with a set of talented engineers, product managers, designers to identify customer needs and build innovative solutions to solve them.
This is a very unique role which combines the small team feeling of a startup launching a brand new product, with the perks, opportunity size and impact of an established company.
What Youll Do:
Building out and leading the development of new impactful product features
Ensure the quality of the features you built, follow-up on usage/issues post release
Work closely with product and design team to deliver new features that align with the needs of the business
Provide technical leadership and mentoring to other engineers on the team
Contribute and drive frameworks that lead to significant user experience improvements
Assist the team in understanding and adopting new technologies

Were looking for an exceptional storyteller and community-builder to ow social and community strategy for Navans newest traveler-focused product. In this foundational, high-visibility role, you will shape how we introduce and engage travelers with our latest product offering across every social and community platform.
Youll build our community approach from the ground up, launch our influencer marketing engine, and create events that spotlight our partners in the hospitality industry-all while serving as the primary voice for our rapidly growing traveler audience. This role is focused exclusively on our upcoming traveler product, working closely with the products launch team and cross-functional partners.