An FDE at Cohere isn't a typical software engineer. You're the person who walks into a customer's environment, often on-prem, often security-sensitive (very important topic), and makes their AI deployment actually work. Think
distributed systems debugging, enterprise infrastructure constraints, and translating what you learn in the field back into product improvements. It's a role that sits at the intersection of customer, infrastructure, and product.

One thing worth noting upfront: Cohere has several FDE specializations, including Agentic Platform, Infrastructure Specialist, and Prompt Specialist. The interview process is largely the same for all of them. The difference shows up in two rounds where the focus shifts based on which specialization you're applying for.

Hiring Manager Interview

The process started with a 45-minute call with the hiring manager. This wasn't a deep technical grilling. It was more about whether my experience actually maps to the shape of the role.

The questions were broad: have I deployed systems in on-prem or restricted environments? Have I scaled distributed systems? What's the hardest technical problem I've owned? Have I worked with customers who have strict security requirements?

What caught me off guard was how much they cared about the customer dimension. It wasn't enough to say "I built a scalable system." They wanted to hear how I navigated constraints that came from the customer's environment, things like networking boundaries, compliance requirements, and deployment restrictions that you don't deal with when you're shipping to your own infrastructure.

The key is not just telling war stories. You need to show that you can move between technical depth, customer context, operational constraints, and executive-level judgment, sometimes in the same sentence.

System Design Debugging

This was the most distinctive round and the one I'd recommend preparing for the most.

I was given a complex architecture diagram, something resembling a large-scale distributed system, and a deliberately vague prompt: "A customer reported that requests are failing. Debug the issue."

That's it. No stack traces. No error codes. No hints about where the problem might be. The interviewer sat back and waited.

The entire round is about whether you can run a hypothesis-driven debugging process under ambiguity. You're expected to drive the investigation: ask for specific logs, metrics, or traces. Explain why you want each piece of data. State your hypothesis. Update it when the evidence doesn't match. Converge without thrashing randomly.

The mistake I almost made was jumping straight into a generic debugging checklist: "check the load balancer, check the database, check the cache." That's not what they want. They want to see you reason about failure domains, prioritize what to investigate first, and make the investigation legible as you go.

I found the best framing was to think out loud: "The most likely failure domain is X because of Y. To confirm, I'd want to see Z. If that's clean, I'd move to W." When the interviewer handed me a piece of data that contradicted my hypothesis, the right move was to say so explicitly and pivot, not to force-fit the evidence. If you've ever been on-call and had to debug a production incident with incomplete information while someone is watching, that's the energy of this round.

Architecture Presentation

This round flips the dynamic. Instead of the interviewer presenting a problem, you present the architecture of a real project you've worked on.

Project choice matters more than presentation polish. Given Cohere's focus on enterprise AI deployment, the best projects involve distributed systems, infrastructure-heavy design, reliability tradeoffs, or security-sensitive environments. The interviewer wants to look at your project and imagine you deploying large-scale LLM systems for demanding customers.

I chose a project that involved deploying a data pipeline in a compliance-constrained environment. It wasn't the most technically flashy thing I'd built, but it was deeply relevant. The interviewer's questions were probing: why did you make this reliability tradeoff? What would break under 10x traffic? How did you handle failure isolation?

A simpler but highly relevant system beats a flashy but unrelated one. Prepare to talk through system context, scale assumptions, reliability decisions, security constraints, and what broke and how you fixed
it. If you applied for a specific specialization, say Infrastructure Specialist, expect the questions to lean heavily into that domain.

VP Behavioral Interview

This was conducted by senior leadership and was the most customer-focused round.

The representative question: "Tell me about a time you took customer feedback and contributed to core product improvements or built new features."

They're not looking for stories about workarounds. They want evidence that you can identify recurring customer pain, separate local symptoms from product gaps, and work with product and engineering to drive durable fixes. The loop from customer problem to product improvement, that's the FDE job, and they want to see you've done it before.

I talked about a situation where I kept hearing the same complaint from multiple customers about a configuration edge case. Instead of patching it each time, I documented the pattern, brought it to the product team, and worked with them on a proper fix. The interviewer pushed on the specifics: how did I get buy-in? How did I prioritize it against other work? What was the outcome?

Prepare two or three stories where you worked directly with customers, identified a repeated pain point, and influenced product or engineering changes beyond a one-off workaround.

HR Interview

The final round was 30 minutes covering culture fit, motivation, and compensation alignment. Not the hardest round, but weak answers can still raise doubts if your story about why Cohere and why FDE feels generic.

Know what Cohere does and who their customers are. Have a clear answer for why FDE specifically, not just "I want to work at an AI company."

Summary

Cohere's FDE interview doesn't test what most people prepare for. There's no LeetCode. No algorithm puzzles. No memorized design patterns. Instead, they test whether you can debug a distributed system under ambiguity, present an architecture and defend it under probing, and show that you've turned real customer pain into real product improvements.

The biggest trap is preparing for this like a standard software engineering interview. It's not. This loop is much closer to enterprise AI deployment + technical leadership + systems debugging. If your preparation only focuses on coding rounds, you're preparing for the wrong job.

Prepare like someone who has to walk into a customer environment, debug a failing AI system, explain the architecture clearly, and then help the product improve because of what you learned.

The full interview guide with practice questions is available at https://furustack.com/interview/company/cohere/forward-deployed-engineer