Senior AI Engineer Jobs

Our client, an AI-driven organization, is hiring experienced Senior Software Engineers to join their team in New York. The successful candidate will design and build large-scale systems that enable AI to run quickly, securely and reliably in production, contributing to a transformative platform that reimagines how organizations build internal software and helps define the future of SaaS.


Responsibilities

• Design and build large-scale untrusted code execution environments with secure sandboxing.

• Develop and operate massively parallel AI agent runtimes and scheduling systems.

• Architect and maintain multi-cloud and customer VPC deployment models.

• Build highly reliable distributed systems with strict security and data integrity guarantees.

• Implement deep observability across AI workflows and underlying infrastructure.

• Create and evolve enterprise-grade integration and metadata platforms.

Skillset

• Strong foundation in distributed systems, scalability, multi-cloud architecture and security.

• Practical experience with operating systems, containers, Kubernetes, cloud networking and event-driven runtimes such as Knative or KEDA.

• A passion for creating simple, elegant solutions to complex systems challenges.

• Demonstrated experience designing, building and operating large-scale infrastructure.

• A strong zero-to-one mindset with the ability to thrive in ambiguous problem spaces.

Benefits

• Salary: $220k - $250k DOE.

• Equity.

Our client, an AI-driven organization, is hiring a Senior Full Stack Engineer to join their team in New York. The successful candidate will leverage emerging AI technologies to develop production-ready software and deliver outstanding user experiences.


Responsibilities

• Design, develop and maintain both the frontend and backend of the company’s AI platform, ensuring robust and scalable solutions.

• Collaborate cross-functionally with design, sales, marketing and customers to create intuitive and seamless user experiences.

• Optimize performance for speed, scalability and reliability across all applications.

• Craft clean, maintainable code and interfaces in a complex, integration-heavy environment.

• Diagnose and resolve issues efficiently while upholding high standards of code quality.

• Stay at the forefront of emerging technologies to continuously enhance our platform.

Skillset

• Extensive Full Stack experience with a strong portfolio of web applications.

• Expertise in ReactJS, TypeScript and server-side development.

• Hands-on experience with RESTful APIs, asynchronous programming and Git.

• Experience working with generative AI APIs, embeddings, streaming outputs and tool calling.

• Familiarity with CI/CD pipelines, container orchestration and cloud infrastructure.

• Knowledge of server-side rendering, static site generation, and testing frameworks such as Jest and Cypress is a plus.

• Proficient in SQL/PostgreSQL, including Row Level Security.

• Excellent communication and problem-solving skills.

Benefits

• Salary: Circa. $200k DOE.

• Health, dental, vision, life and disability insurance.

• 401(k) with match.

• Remote working options.

• Develop, implement and fine-tune enterprise-level AI models and reliable production workflows.
• Create and maintain a real-time distributed execution engine that supports AI applications, agents and workflows.
• Design scalable and resilient systems that enable multi-tenant and hybrid cloud deployments, featuring secure APIs and a versatile integrations platform.
• Work closely with customers and design partners to collect feedback, validate approaches and guide product development.
• Collaborate with the product team to shape the roadmap and keep pace with the latest advancements in AI infrastructure.

• At least 5 years of experience deploying and managing production applications in cloud environments.
• Extensive knowledge of containers, virtual machines, caches, task queues, networking and operating systems.
• Proven experience in building and running production AI systems.
• Familiarity with AI inference methodologies.
• Proficient with machine learning frameworks such as PyTorch and TensorFlow.
• Strong product intuition with a commitment to delivering smooth and intuitive user experiences.
• Strategic thinker who can anticipate market demands and develop effective technical solutions.
• Startup mindset - quick to act, comfortable with uncertainty, and passionate about turning ideas into delivered products.

• Salary: $170K - $210k
• Equity
• Remote working within the U.S.

Our client, a growing AI-driven startup, is hiring a Senior Backend Engineer to join the team in New York. The successful candidate will play a pivotal role in shaping both the product and platform, designing the APIs and infrastructure that power identity verification for millions of users.


Responsibilities

• Architect and develop high-performance APIs and backend services that power the company’s platform.

• Collaborate closely with product, design and frontend teams to deliver features from concept through production.

• Actively contribute to product vision, roadmap planning and key technical decisions.

• Take full ownership of major features and product areas, from initial design through deployment and iteration.

• Write production-grade Rust for secure systems handling highly sensitive data.

Skillset

• At least five years’ experience in Backend Software Engineering.

• Previous experience of designing scalable, secure architectures from the ground up.

• Knowledge of Rust, TypeScript, Postgres, Next.js / React, Pulumi, AWS and/or Vercel.

• Hands-on experience in KYC, identity verification or fraud prevention is a bonus.

• Background in cryptography or systems security is a plus.

• Strong interest and experience building large-scale systems in Rust.

• Experience operating at scale on AWS, with infrastructure-as-code tools.

Benefits

• Salary: $160,000?-?$230,000 DOE.

• Equity.

• Fully covered health, dental and vision insurance.

Our client, a growing AI-driven startup, is hiring a product-minded Senior Frontend Engineer to join the team in New York. The successful candidate will own the delivery of polished, high-quality user experiences, obsess over UI details and ensure the frontend platform remains scalable, maintainable and robust.


Responsibilities

• Take user-facing features from specification through development, deployment and iteration.

• Create seamless tools that make it easy for external developers to integrate with their platform.

• Improve CI/CD processes, release workflows and tooling for efficiency and reliability.

• Monitor frontend performance, optimize speed and provide actionable insights.

• Evolve and refine their component library to ensure consistency and scalability.

• Listen, analyze and translate user insights into meaningful product improvements.

Skillset

• Ability to own end-to-end delivery, prioritises outcomes, and balances speed with quality.

• Strong attention to detail on UI/UX and collaborate effectively with designers and teammates.

• Make thoughtful technical decisions without over-engineering.

• Experienced with CI/CD, release processes, performance optimisation, and observability.

• Leverages AI thoughtfully to accelerate development and improve quality while maintaining high engineering standards.

• Strong technical skills in Monorepo, React, TypeScript, Tailwind, React Query and/or Rust.

Benefits

• Salary: $170k- $220k DOE.

• Equity.

• Health, dental and vision insurance.

Our client, an AI-focused FinTech company, is hiring a Senior Backend Engineer to join their team in Manhattan, New York. The successful candidate will take the lead for core systems, from owning the overall architecture and building systems that are low-latency, resilient and cost-efficient.


Responsibilities

• Design, build and maintain backend services that are high-performance, resilient and easy to scale.

• Define service boundaries, data models and API contracts to enable independent team development.

• Set performance benchmarks and SLOs, designing systems for durability and graceful degradation under load.

• Lead technical design reviews and mentor engineers on best practices in code quality, testing, and operations.

• Take ownership of critical systems, including queue orchestration (Temporal), caching (Redis) and infrastructure automation.

Skillset

• Proven expertise building Node.js/TypeScript services.

• Experience with Go in production is a plus.

• Solid grasp of memory management, distributed systems, durable execution and edge computing.

• Hands-on experience with Temporal (or similar durable workflow systems) and Redis at scale.

• Comfortable deploying and operating services in modern cloud environments with strong observability practices.

• Familiarity with LLM integrations and their operational considerations is a plus.

• Strong communication and decision-making skills.

• Ability to make both high-level architecture and detailed code design decisions.

• Experience working with agentic or LLM-driven workflows is a bonus.

Benefits

• Salary: $150K–$200K

• Equity.

• Health, dental and vision insurance.

• 401k with 3% automatic contribution.

Our client, an AI-driven healthcare organization, is hiring a Software Engineer with expertise in Backend Engineering and Machine Learning to join their team in New York. The successful candidate will design and build scalable backend systems and machine learning infrastructure, which will support real-time patient engagement, seamless integration of complex data sources and measurable improvements in healthcare outcomes.


Responsibilities

• Design, build and maintain scalable backend services and APIs that power an AI-driven patient engagement platform.

• Develop and operate production-grade infrastructure for deploying, monitoring and scaling LLM-based applications.

• Collaborate with AI/ML engineers to embed conversational AI and predictive models into core platform workflows.

• Architect flexible, extensible backend systems that scale with expanding product capabilities and data demands.

• Implement and maintain CI/CD pipelines, including automated testing, versioning and deployment processes.

• Develop reusable libraries, frameworks, and components to accelerate development and enhance code quality.

• Promote engineering best practices to ensure systems are secure, scalable, and maintainable.

• Utilize cloud platforms (GCP, Azure, AWS) to deliver reliable and cost-efficient infrastructure for web services and ML workloads.

Skillset

• Minimum 5  years of full-stack development experience, including at least 2 years in a senior-level role.

• Proven track record of taking products from 0 ? 1 and scaling from 1 ? N in early-stage environments.

• Strong proficiency in Node.js and/or Python, relational databases, ReactJS and Express.

• Demonstrated interest in AI, with hands-on experience integrating LLMs into production systems.

• Excellent system design and architecture skills, with a focus on scalability and extensibility.

• Disciplined engineering approach, adhering to Clean Code principles, TDD, and CI/CD practices.

• Experience collaborating with cross-functional and non-technical stakeholders.

• Portfolio of projects showcasing leadership or ownership of significant engineering initiatives.

Benefits

• Salary: $150k - $180k DOE.

• Drive the architecture and implementation of complex, data-intensive user interfaces.
• Design and optimize state management and data-fetching strategies for maximum performance and reliability.
• Collaborate closely with design and product teams, contributing to UX research, prototyping and interaction design.
• Define and enforce frontend best practices, including design tokens, theming, testing and CI/CD workflows.
• Develop and maintain reusable component libraries to ensure consistent, high-quality customer-facing experiences.

• Excellent skills in React, Next.js, Tailwind, Vercel, Zustand and React Query.
• Strong design and UX ownership abilities, including shaping interaction patterns and driving visual clarity.
• Experience building scalable component libraries and design systems across multiple products.
• Skilled in optimising performance, accessibility, testing and error handling, delivering outstanding Core Web Vitals.
• Ability to transform ambiguous ideas into clear, actionable flows and ship quickly.
• An opinionated and thoughtful developer, making informed decisions at both the framework and code level, and exploring new patterns to deliver the best product.

• Salary: $165k - $250k DOE
• Health, dental and vision insurance
• 401(k)

Our client, an AI-driven FinTech organization, are hiring a Senior AI Engineer to join the team in Manhattan, New York. The successful candidate will work with LLMs and deploy real-world AI agents, focusing on orchestration, evaluation and reliability to ensure agents perform meaningful work safely, efficiently and consistently.


Responsibilities

• Design, build and productionize end-to-end agent workflows, including APIs, tools, evaluation frameworks, monitoring and multi-step processes.

• Optimize system performance by managing latency, cost and safety controls, and building dashboards and alerts for reliability.

• Evaluate and compare models, hosting solutions and prompt strategies, implementing guardrails as needed.

• Measure outcomes, run A/B tests and iterate to improve task success and overall system effectiveness.

• Collaborate with product and design teams to develop and ship innovative interaction patterns.

Skillset

• At least 3 years of experience building AI/ML systems, preferably with LLMs or agentic workflows.

• Strong programming skills in Python, including libraries like NumPy, PyTorch or TensorFlow.

• Experience designing and integrating APIs, microservices and evaluation frameworks.

• Knowledge of workflow orchestration, multi-step planning and memory/retrieval systems.

• Familiarity with cloud platforms (AWS, GCP, Azure) and containerized environments (Docker, Kubernetes).

• Strong problem-solving skills with the ability to make informed system and code-level decisions.

• Experience with monitoring, instrumentation and A/B testing to optimize outcomes.

• Excellent collaboration and communication skills.

Benefits

• Salary: $160K–$200K

• Stock options.

• Health, dental and vision insurance.

• 401k with 3% automatic contribution.

Our client, an exciting startup in the financial services industry, are hiring a Senior Software Engineer to join the team in the New York/New Jersey area. The successful candidate will own the software development lifecycle from day one, designing and building systems that support complex private-market operations.


Responsibilities

• Design, develop and support production-grade systems using TypeScript, Node.js, React and Python.

• Own critical components end to end, while maintaining a holistic understanding of the broader system architecture.

• Navigate ambiguous problem spaces and help define solutions where requirements are evolving or incomplete.

• Partner closely with product, operations and client-facing teams to deliver pragmatic, high-impact solutions.

• Clearly articulate technical trade-offs, priorities and delivery timelines to both technical and non-technical stakeholders

• Establish and promote best practices for planning, execution and long-term system maintainability.

• Drive a collaborative, empathetic culture focused on ownership, accountability and continuous improvement.

Skillset

• At least 6 years of hands-on software engineering experience in production environments.

• Strong full-stack expertise across TypeScript, Node.js, React and Python.

• Demonstrated ability to operate effectively in ambiguous, fast-evolving problem spaces.

• A track record of overcoming challenges, learning from them, and reflecting on how to collaborate more effectively.

• Clear, proactive communicator who values planning, prioritization and cross-functional collaboration.

• Comfortable building from ground zero, with a thoughtful approach to onboarding and early impact.

Benefits

• Salary: $180k - $220k DOE.

• Comprehensive benefits package.

Senior Software Developer (Backend)
Location: Dublin; Hybrid
Type: Permanent
Start Date: September


Our client, an AI-driven organization who have recently opened a new EU HQ, are hiring a a Senior Software Developer to join their backend development team in Dublin. The successful candidate will play a key role in delivering innovative projects and scalable backend solutions that drive the success of an AI leader in its domain.


Responsibilities

• Design, develop and maintain backend systems using Python and C++.

• Build scalable, high-performance APIs and services to support AI-driven applications.

• Optimise system performance, troubleshoot complex issues and ensure high availability.

• Contribute to architectural decisions and influence best practices within the team.

• Write clean, maintainable, and well-tested code following industry standards.

• Stay current with emerging technologies and recommend improvements to enhance system efficiency and scalability.

Skillset

• 7+ years of experience in software development using Python and C++.

• Understanding of backend development principles and database management.

• Strong problem-solving skills and attention to detail.

• Experience working on AI projects advantageous.

Please note – Applicants must be based locally in Ireland and an EU citizen to be considered for this role.