AI Backend Engineer

Backend AI Engineer

Freelance Full-time Remote

SNEAK PEEK

Location: Remote GMT0/4

Interview process: HR Interview Technical interview Take-home challenge Presentation of home challenge

Contact: For questions please reach out to:

WHO ARE WE

At Rounds we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative machine-learning technology identifies and optimizes mobile assets while our team of experts with their unparalleled human capital and business acumen provides the strategic direction and support to turn mobile assets into profitable businesses. Together we are revolutionizing the mobile industry. You can find out more info about us here: .

THE ROLE

Were looking for a strong systems-oriented engineer with hands-on LLM experience to join our AI Innovation this role youll build AI systems and internal products that improve how teams work across different departments and areas in the company. The common denominator is ownership: you should be comfortable leading projects end-to-end including clarifying needs with stakeholders making decisions under ambiguity and pushing through blockers when they arise.

This role is a strong fit for someone who enjoys both sides of applied AI work: full-stack engineering and practical use of LLM capabilities.

Hiring manager: Ori Nahum AI Innovation Team Lead ( youll be working on

Examples of projects you may work on:

• AI agents for code generation workflows (especially in mobile applications)
• A mobile app navigation agent
• Backend services that orchestrate LLM workflows tool calling and integrations with internal systems
• AI chatbot connected to internal data sources and business systems
• And other new AI-driven solutions that support different departments across the company

Youll be expected to move between experimentation and implementation: validating ideas quickly turning the promising ones into reliable tools and leading projects far enough to make them useful in practice not just technically possible.

Requirements:

WHAT ARE WE LOOKING FOR

Must-have

• 5 years experience in software development (preferably in Python TypeScript or mobile development).
• Ability to lead projects from idea to production including aligning with stakeholders driving decisions and proactively removing blockers when needed
• Hands-on experience building LLM-based products tools or agents beyond toy prototypes
• Good understanding of prompt design tool calling orchestration and how to make LLM systems actually useful
• Strong English communication skills

Big advantage

• Experience building internal developer tools or productivity systems
• Background in mobile development especially native Android or iOS
• Design and implement evaluation frameworks to assess AI performance accuracy and reliability.
• Solid understanding of ML theory and how LLMs work under the hood including key concepts limitations and trade-offs beyond the API layer
• Familiarity with cloud infrastructure / DevOps / CI-CD
• Good judgment around where AI adds value and where it doesnt

Who will do well here

Youll likely do well in this role if you:

• Like building practical systems not just demos
• Take initiative without waiting for perfect specs
• Enjoy exploring new tools but know how to separate hype from whats actually useful
• Want the freedom to research experiment and then ship
• Enjoy working across different problem spaces and use cases rather than staying in one narrow lane

INTERESTED

Our recruitment process consists of the following steps:

• HR interview with the recruitment manager: 45 min
• Technical interview with the AI Engineer Tech Lead & Team Lead: 1 hour
• Take-home challenge: 4 hours of work
• Final Interview - take-home challenge presentation with CTO and AI Engineer Team Lead and Tech Lead: 1 hour

Get in touch at We look forward to hearing from you!