Job Title: Founding AI Engineer
Start date: ASAP
Type: Permanent
Location: Manhattan, New York (Onsite x5 days)
Salary: $115-190K

Are you passionate about solving some of the toughest challenges in data transformation? Do you thrive in a high-impact, fast-paced environment where your work directly shapes the future of a company?

About the Role

Our client is tackling one of the biggest unsolved problems in technology: fully automating data transformation and modeling. Their AI-driven approach is revolutionising how data flows between systems, eliminating silos, and making seamless connectivity a reality.

We are working with an innovative AI startup that is pushing the boundaries of Memory AI Agents and intelligent systems. They are now looking for a highly skilled AI Engineer to join their growing team and play a key role in developing and deploying production-grade AI solutions.

This is an excellent opportunity for an engineer with start-up experience, strong Python expertise, and a passion for scaling AI models. If you thrive in fast-moving environments and enjoy solving complex AI challenges, this could be the perfect role for you.

Responsibilities

• Develop and deploy AI models into production environments
• Build and optimise Memory AI Agents for real-world applications
• Work on large-scale data pipelines and improve model efficiency
• Design and implement data visualisation tools to interpret AI insights
• Collaborate with cross-functional teams to drive innovation

Requirements

• Must have a University degree - preferably from a top 20 University.
• Proven experience as an AI/ML Engineer, ideally within a start-up environment
• Strong proficiency in Python and experience with AI/ML frameworks
• Hands-on experience with Memory AI Agents and reasoning systems
• A track record of building scalable, production-grade AI systems
• Experience with data visualisation techniques to make AI insights accessible
• Ability to work in a fast-paced, autonomous environment with a problem-solving mindset
  
  

If you are passionate about AI, production systems, and driving innovation, Cathal would love to hear from you. Apply now to learn more.

Catio is building the world’s first AI-powered Copilot for Tech Architecture—helping CTOs, architects, and developers plan high-ROI architectures, modernize and optimize their tech stacks, and make faster, smarter decisions using AI-driven intelligence. Backed by top-tier VCs and led by industry experts in AI, cloud, and enterprise architecture, we aim to democratize the intelligence and know-how for designing, evaluating, and evolving world-class tech stacks across industries worldwide.

The Role: Lead Fullstack Engineer

In this role, you will lead development and evolution of Catio’s user-facing platform. This is a hands-on, high-impact position where you will architect, develop, and optimize our applications, ensuring a high-quality, performant, and scalable experience for our users.

You will have significant ownership over the user-facing product, driving critical technical and architectural decisions, while working closely with Catio’s leadership team, customers, and early adopters. This role is ideal for a startup-minded, entrepreneurial engineer with deep expertise in fullstack development, architecture design, and scalable SaaS platforms—someone who thrives in 0→1 environments, embraces a polyglot mindset, and is eager to build a category-defining product.

What you’ll do:

• Lead fullstack development: Architect and build a highly responsive, scalable, and performance-optimized enterprise SaaS application.

• Develop and maintain a highly responsive frontend user interface, ensuring a delightful user experience across all target features and desired product functionality

• Develop and maintain a high-quality, scalable backend of our enterprise SaaS website and web app using modern web technologies and cloud-native tools and frameworks

• Drive end-to-end product delivery: Work closely with leadership, product, and AI teams, to define product strategy, ship cutting-edge AI and SaaS product capabilities, and optimize platform performance

• Shape the engineering culture: Establish and promote best practices, mentor engineers, and contribute to hiring and team-building efforts.

• Ensure high code quality and performance: Participate in code and design reviews, and foster a culture of continuous improvement

What you bring:

• 4+ years of experience and rapid career progression in fullstack engineering at top-tier startups and / or technology companies

• Impressive track record of building and scaling appealing, responsive, and complex SaaS platforms, preferably with some enterprise SaaS experience

• Deep expertise in modern fullstack development, including React, Next.js, GraphQL, TypeScript, as well as backend systems in Node.js, Python, or similar

• Keen appreciation of modern design patterns and cloud native architectures, and interest in challenges experienced by architects and building AI-powered decision-insight capabilities—with a versatile, polyglot mindset

• Excellent problem-solving and debugging skills, with a passion for code quality, performance, and maintainability

• A dynamic mindset and high-trust personality, to effectively collaborate cross-functionally at Catio while shaping our grounded geek culture

• Commitment to build 0→1 and excelling in a fast-paced startup environment, taking ownership of a category-defining product and delivering impactful solutions end-to-end

At Catio, you’ll have direct ownership in shaping a high-growth, VC-backed startup and solving deep technical challenges in scalable SaaS, cloud architecture, and AI-powered decision intelligence. This role offers a fast trajectory for career growth, with meaningful equity and leadership opportunities as we scale. If you are a talented Fullstack Engineer with a passion for building cutting-edge enterprise software and solving high-impact customer problems, we invite you to apply!

Shape the Future with Catio

Join a world-class team of AI, engineering, and business leaders from Splunk, Atlassian, Dropbox, and more to build a category-defining platform.

At Catio, we offer top-tier compensation for startups at our stage, ensuring highly competitive salaries along with significant equity in a rapidly growing, VC-backed company. We are also committed to fostering an inclusive and diverse workplace and welcome applicants of all backgrounds and identities.

Join us and help revolutionize how companies plan and optimize their tech stacks using AI-driven intelligence!

• Lume is doing for data what Facebook did for humans - connect them effortlessly. The amount of data within companies is growing exponentially and is increasingly more siloed with the proliferation of vertical specific SAAS applications and unique client formats. Lume solves this problem by leveraging AI to act as a translation layer to enable your data to flow between systems seamlessly. You give us your desired schema, and we do the rest from mapping, classifying, aggregating, and other data transformation tasks to fit your incoming data.
• We have developed novel strategies leveraging LLMs that stemmed from our NLP research during our graduate degrees at Stanford University.
• We have raised over $4M to date from the top firms in the valley such as Khosla Ventures (OpenAI, Replit) and General Catalyst (Stripe, Airbnb) along with other notable angels.
• Today, we’re growing and excited for new teammates to join who are the best at what they do.

About the Role:

Fully automating data transformation and data modeling has been an unsolved problem in technology since the invention of the database; therefore, it is technically challenging. It requires a deep understanding of scalable data infrastructure, cutting-edge AI models, and intuitive user interfaces. We are looking for curious, independent thinkers that are willing to join us to tackle these challenges to empower the industry.

In this role, you will:

• Work effortlessly across the full-stack building highly scalable distributed solutions to enable low latency rendering of large datasets.
• Architect and implement direct customer features and workflows end-to-end, ensuring a seamless user experience.
• Lead performance optimization improvements in areas such as latency, storage, and scalability, identifying bottlenecks and implementing solutions to enhance system performance.
• Have extreme ownership: work alongside the founders to shape product direction, have direct relationships with customers, and help build out our team.

In this role, you will thrive if you:

• Have experience building and deploying data intensive web applications into a production environment and are familiar with the advantages of the technology and its limitations.
• Can identify the most important problems, intuit whether off-the-shelf or in-house solutions are needed, learn the knowledge gaps you are missing for the problem, and stay scrappy to execute the task until it is solved without explicit direction.
• Feel comfortable sharing feedback early and often, as well as receive feedback.
• Have at least 3 years of professional full-stack experience with React and Typescript frontend and Python backend.

Location

We are located in Manhattan, NY, working in person 5 days a week from our beautiful downtown office.

Benefits and Perks

• Generous Compensation: At Lume, we only hire those that are the best at what they do. We believe the best and brightest tackling challenging problems deserve the best compensation packages, and we will ensure that happens.
• High Impact: You will be a founding member and thus inherit the responsibilities of a founder. You will have immense ownership over your work, the product roadmap, and the direction of the company.
• Perks: Lunch, drinks, snacks, healthcare and dental coverage, and more are provided.