Backend AI Engineer [Freelance, Full-time, Remote] SNEAK PEEK ⇨ Location: Remote, GMT+0/+4 ⇨ Interview process: HR Interview ⇨ Technical interview ⇨ Take-home challenge ⇨ Presentation of home challenge ⇨ Contact: For questions please reach out to: hr@rounds.com 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: www.rounds.com. THE ROLE We’re looking for a strong systems-oriented engineer with hands-on LLM experience to join our AI Innovation team. In this role, you’ll 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 (https://www.linkedin.com/in/ori-nahum-b4a254aa/) What you’ll 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 You’ll 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 doesn’t Who will do well here You’ll 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 what’s 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 hr@rounds.com. We look forward to hearing from you!

hands-on experience on python with ability to write high quality code adhering to coding principlesability to identify the bottlenecks in existing application and refactor.good understanding of database like bigQuery, MapR and Big Tableability to create high quality design and architecture.well versed with pyTest and Cucumber to support TDD and BDD based development At Zensar, we’re “experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus. Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself. We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status.

hands-on experience on python with ability to write high quality code adhering to coding principlesability to identify the bottlenecks in existing application and refactor.good understanding of database like bigQuery, MapR and Big Tableability to create high quality design and architecture.well versed with pyTest and Cucumber to support TDD and BDD based development

• Atuar de ponta a ponta no desenvolvimento e evolução de aplicações — incluindo sistemas modernos e legados — construindo soluções escaláveis, performáticas e com excelente experiência do usuário; • Participar de discovery, refinamentos técnicos e definição de arquitetura; • Desenvolver e evoluir aplicações backend utilizando .NET (C#) e frontend com Angular; • Atuar na manutenção, evolução e modernização de aplicações existentes (legado); • Implementar arquiteturas robustas e escaláveis (ex: microserviços, monólitos modulares, Clean Architecture); • Garantir qualidade através de testes automatizados (unitários, integração e frontend); • Atuar na observabilidade e operação (monitoramento, logs e métricas); • Análise e resolução de problemas em produção; • Otimizar performance tanto no backend quanto no frontend; • Gerenciar ciclo de build, versionamento e deploy das aplicações.