Decagon interview prep. 18 likely questions.

The process at Decagon, what each stage actually tests, and how candidates prep. Real questions where we have them, likely questions where we don't.

GET ALERTED WHEN DECAGON POSTS NEW ROLES

Scoutify watches Decagon's careers page around the clock. Browse every job free. Alerts from $5/week.

[01] BY THE NUMBERS

Headline facts before you prep.

Pulled straight from Decagon's career page and public data sources. Tap any cell for the full breakdown.

Full Decagon company profile

Focus on prep. We'll handle the applications.

Scoutify auto-applies to Decagon and similar roles while you prepare. Auto-apply from $15/week.

SIGN UP FREE

[02] INTERVIEW PROCESS

Standard software engineering loop at Decagon.

The stages below describe the typical SWE loop. Product, Design, and Data loops differ; pick a role to see how it changes, or jump straight to real questions reported for that role.

ROLE
01

Recruiter / Hiring Manager Screen

30-45 min

Discussion of your background, research interests, and the role. ML roles often include a quick technical discussion about your past work.

  • Be prepared to discuss your papers or projects in detail
  • Know the company's recent publications or product launches
  • Ask about the team's current research direction
02

Technical Screen

60 min

Coding plus ML concepts. May include implementing an ML algorithm from scratch or discussing model architecture choices.

  • Know how to implement common algorithms: logistic regression, decision trees, k-means
  • Brush up on gradient descent, backpropagation, and loss functions
  • Be comfortable coding in Python with NumPy
03

ML Deep Dive

60 min

Extended discussion of ML concepts, model evaluation, feature engineering, and production ML challenges.

  • Know bias-variance tradeoff, overfitting mitigation, and model selection
  • Be ready to discuss model monitoring and data drift
  • Understand the full ML lifecycle, not just training
04

System Design / ML Architecture

60 min

Design an ML system end-to-end: data pipeline, feature store, model training, serving, and monitoring.

  • Practice designing recommendation systems, search ranking, and fraud detection
  • Discuss feature engineering, online vs. offline serving
  • Consider model freshness, A/B testing, and rollback strategies
05

Research Discussion / Paper Review

45-60 min

Some companies ask you to present your research or discuss a recent paper. Tests depth of understanding and ability to communicate complex ideas.

  • Choose a paper you understand deeply, not just superficially
  • Be ready to discuss limitations and potential improvements
  • Practice explaining technical concepts to different audiences

[03] REAL QUESTIONS

Likely questions for Decagon.

18 likely questions inferred from Decagon's open roles and company profile.

Other Roles

18 questions
Likely
Likely
Likely
Likely
Likely

WHILE YOU PREP

Prepping for Decagon? Don't miss their next opening.

We monitor Decagon's careers page and alert you within minutes of a new role, before it hits LinkedIn.

Get Decagon alerts
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
Likely
How to answer these: the STAR method

Use the STAR method: describe the Situation, the Task you faced, the specific Action you took, and the measurable Result. Aim for 60-90 seconds with one concrete metric. Practice it out loud before the interview so it flows naturally; the same structure works for every question above.

[04] HIRING PULSE

Decagon's hiring pulse.

We re-scan Decagon's career page every few minutes and keep the full posting history, so these counts come from the board itself, not an aggregator.

Cooling6 postings this week vs a baseline of 5.3/week

Posted (7d)

6

Posted (30d)

23

Posted (90d)

68

Scanned every few minutes · newest tracked posting May 22, 2026

[05] APPLY LOGISTICS

Applications go through Ashby.

Decagon runs hiring on Ashby, so the application form and recruiter follow-ups flow through it. Use the same email everywhere and keep the profile fields consistent with your resume; recruiters see both side by side.

A modern, all-in-one recruiting platform built for high-growth companies. Ashby combines ATS, CRM, scheduling, and analytics into a single product.

Auto-apply currently covers Greenhouse, Workday, and SmartRecruiters. For Ashby boards like Decagon's, Scoutify alerts you in real time so you can be one of the first applications in.

How Scoutify integrates with Ashby

ATS identified from the application URLs on Decagon's recent postings

[06] PEOPLE ALSO ASK

Common questions about Decagon interviews.

Does Decagon sponsor H1B visas?

Yes, Decagon does sponsor H1B visas for international candidates. This allows skilled professionals from around the world to apply for positions at Decagon and contribute to the company's growth. If you are considering applying from outside the U.S., you can feel confident that Decagon supports visa sponsorship.

What is the average salary at Decagon?

The salary range for positions at Decagon varies from $202,202 to $274,293, based on the job postings with disclosed salaries. This competitive compensation reflects the high demand for skilled professionals in roles such as Senior Software Engineer and Product Manager. When considering a position at Decagon, you can expect a salary that aligns with industry standards for technology roles.

What is the interview process like at Decagon?

The interview process at Decagon typically includes multiple stages, where candidates may be asked to solve complex problems collaboratively and adapt their communication styles for diverse teams. Expect questions that focus on leadership experiences and technical skills, such as improving speech recognition models. This thorough process ensures that Decagon selects candidates who are not only skilled but also align with the company's culture and values.

What roles are currently open at Decagon?

Decagon is actively hiring for several key roles, with 141 job postings available. The top positions include Senior Software Engineer in Infrastructure and Agents, Senior Agent Product Manager, Implementation Manager, and Customer Engineer, with the highest demand in cities like San Francisco and New York City. If you are interested in these roles, now is a great time to apply as Decagon has posted 28 jobs in the last 30 days.

[07] OVERVIEW

What candidates run into at Decagon.

AI company interviews blend traditional software engineering with ML-specific evaluations. Expect deep dives into ML fundamentals, statistics, paper discussions, and practical implementation challenges.

[08] PREP TIPS

How candidates prepare.

Review ML fundamentals: probability, statistics, linear algebra
Practice implementing models from scratch in Python
Read recent papers from the company's research team
Be prepared to discuss production ML challenges, not just research
Understand the company's ML infrastructure and tools

[09] EXPERT FRAMEWORKS

Frameworks and sample answers from interview coaches.

Curated from Columbia Engineering's licensed BigInterview library: expert-written tips, sample answers, and walkthroughs that work for any interview.

Source: BigInterview (licensed by Columbia Engineering)

[10] FAQ

Questions candidates ask about Decagon interviews.

Salary, visa sponsorship, process, hiring volume. Drawn from public data on Decagon.

Does Decagon sponsor H1B visas?

Yes, Decagon does sponsor H1B visas for international candidates. This allows skilled professionals from around the world to apply for positions at Decagon and contribute to the company's growth. If you are considering applying from outside the U.S., you can feel confident that Decagon supports visa sponsorship.

If we answered your question, set up alerts for Decagon so you don't miss the next role.

Set up Decagon alerts

PREP SMARTER. APPLY FASTER.

Ready for Decagon? Let Scoutify keep your pipeline full.

Auto-apply to matching jobs so your search doesn't stop while you interview.

START FREE

Browse free. Alerts from $5/week, auto-apply from $15.