o9solutions Interview Preparation
Medium-HardTechnology · India
o9 was founded to transform enterprise planning. We lead with customer focus and continuous innovation to ensure our platform delivers value every day. Our goal is to be the most valuable enterprise application for our clients by enabling true AI-powered integrated planning on a scalable platform. We’re committed to delivering transformative value—showing up as a reliable partner, driving change, and solving the complex challenges of digital transformation. o9 Solutions’ co-founders Sanjiv Sidhu and Chakri Gottemukkala are tech entrepreneurs who built a track record of value creation by delivering innovative supply chain planning solutions for global companies. With teams around the world, our offices reflect the global reach of the o9 community—connected, collaborative, and united by one purpose. Join o9 and become part of a global team shaping the future of enterprise planning through innovation and a shared commitment to positive change. See how the o9 Digital Brain unifies planning, forecasting, and execution through AI-driven intelligence. Get a personalized walkthrough with an o9 solution specialist and see how to drive faster, smarter planning decisions across your enterprise. Fragmented data and tribal knowledge are digitized and improved. Functions and processes are connected. One Agile Planning & Execution model — end-to-end real-time visibility, more accurate forecasts, fast scenario analysis, synchronized decision-making, touchless execution. Driven by strategy and optimized for enterprise value. The Enterprise Knowledge Graph–powered AI sets the o9 Digital Brain apart. APEX is not just another AI technology. It is an Operating Model innovation. Designed to make the change journey smoother. Value creation faster. With self-learning capabilities that analyze plan-versus-execution variances across the value chain at scale, it rapidly detects value leakages and surgically enhances every aspect of your operating model — data and knowledge, organizational skills, process speed, algorithms, and AI agents. This speed of improvement is the ultimate edge. The next-gen o9 Digital Brain, enabled by Neuro-Symbolic AI, makes this leap forward possible. Connect finance, marketing, sales, and supply chain data on a single, live online platform to mitigate risks and capitalize on opportunities. Join supply chain, commercial and financial leaders to explore the next evolution of enterprise decision-making.
About o9solutions
o9 was founded to transform enterprise planning. We lead with customer focus and continuous innovation to ensure our platform delivers value every day. Our goal is to be the most valuable enterprise application for our clients by enabling true AI-powered integrated planning on a scalable platform. We’re committed to delivering transformative value—showing up as a reliable partner, driving change, and solving the complex challenges of digital transformation. o9 Solutions’ co-founders Sanjiv Sidhu and Chakri Gottemukkala are tech entrepreneurs who built a track record of value creation by delivering innovative supply chain planning solutions for global companies. With teams around the world, our offices reflect the global reach of the o9 community—connected, collaborative, and united by one purpose. Join o9 and become part of a global team shaping the future of enterprise planning through innovation and a shared commitment to positive change. See how the o9 Digital Brain unifies planning, forecasting, and execution through AI-driven intelligence. Get a personalized walkthrough with an o9 solution specialist and see how to drive faster, smarter planning decisions across your enterprise. Fragmented data and tribal knowledge are digitized and improved. Functions and processes are connected. One Agile Planning & Execution model — end-to-end real-time visibility, more accurate forecasts, fast scenario analysis, synchronized decision-making, touchless execution. Driven by strategy and optimized for enterprise value. The Enterprise Knowledge Graph–powered AI sets the o9 Digital Brain apart. APEX is not just another AI technology. It is an Operating Model innovation. Designed to make the change journey smoother. Value creation faster. With self-learning capabilities that analyze plan-versus-execution variances across the value chain at scale, it rapidly detects value leakages and surgically enhances every aspect of your operating model — data and knowledge, organizational skills, process speed, algorithms, and AI agents. This speed of improvement is the ultimate edge. The next-gen o9 Digital Brain, enabled by Neuro-Symbolic AI, makes this leap forward possible. Connect finance, marketing, sales, and supply chain data on a single, live online platform to mitigate risks and capitalize on opportunities. Join supply chain, commercial and financial leaders to explore the next evolution of enterprise decision-making.
Interview Rounds4
2–3 DSA coding problems on HackerRank, CodeSignal, or company platform
Data structures & algorithms — arrays, trees, graphs, dynamic programming
System design or low-level design — scalability, APIs, databases
Career goals, teamwork, strengths/weaknesses, role expectations
Practice Questions10
Key Topics
- Data Structures & Algorithms150q
- System Design50q
- Object-Oriented Design40q
- SQL & Databases25q
- CS Fundamentals (OS, Networking)25q
Expert Tips
- Practice LeetCode easy and medium problems before the OA — focus on arrays, strings, trees, and graphs.
- For system design, use the RESHADED framework: Requirements, Estimation, Storage, High-level design, APIs, Detailed design, Evaluation.
- Prepare 3–4 STAR stories covering: a challenge you solved, a time you worked in a team, a project you owned end-to-end.
- After every coding solution, proactively state the time and space complexity — interviewers expect it.
- Study common CS fundamentals: process vs thread, TCP vs UDP, REST vs GraphQL, SQL indexing, CAP theorem.