Startups

How to get a job at Improbable

20 real interview questions, insider tips on the hiring process, and what Improbable actually looks for. Most people read about it. Very few practise for it.

London, UK 600+ 4.2/5 (based on recent reviews)/5 Glassdoor
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Your question

Tell me about yourself and what makes you a strong candidate for this role.

30s preparation 2 min recording Camera + mic

About Improbable

Company overview

Improbable is a technology company developing simulation software and computational platforms for enterprise applications. The company's core technology enables large-scale simulations and complex system modelling for industries including logistics, infrastructure, and defence.

Founded in 2012, Improbable combines cutting-edge distributed computing with sophisticated simulation capabilities, serving complex global enterprises.

Inside the company

Culture & values at Improbable

Improbable's culture emphasises technical excellence, innovation, and solving complex computational challenges. The organisation values intellectual curiosity, collaborative problem-solving, and pushing boundaries in simulation technology. Staff are encouraged to contribute ideas and take ownership of technical challenges.

The culture is fast-paced, intellectually demanding, and entrepreneurial, reflecting the startup phase of a technically sophisticated company.

Why people want to work here

Improbable offers careers for software engineers, distributed systems specialists, and technical experts. Employees work on cutting-edge simulation and distributed computing technology with significant real-world applications. The company offers competitive salaries, equity, professional development, and the opportunity to work on complex technical challenges.

What to expect

Working at Improbable

The working environment at Improbable reflects the startups sector — structured but dynamic, with a mix of planned project work and responsive tasks. Most roles involve regular collaboration with colleagues across different teams and functions, with clear expectations for deliverables and timelines. Flexible and hybrid working arrangements are increasingly common, and the organisation recognises that different roles require different working patterns.

As a 600+-person organisation, Improbable offers the chance to make a visible, measurable impact. Teams are small and close-knit — you'll know most of your colleagues by name within your first few weeks. The flip side of a smaller organisation is that you may need to wear multiple hats, but many people find this variety energising and a faster route to building broad experience.

The culture at Improbable shapes how the day feels beyond just the work itself. Colleagues describe the environment as one that values Software Engineering Excellence and Technical Depth. Lunch breaks, team socials, and informal catch-ups are part of the rhythm — Improbable recognises that building relationships across the organisation is as important as the deliverables themselves. Most employees report that the people are one of the best things about working here, and that the team dynamic makes challenging work feel manageable.

The hiring journey

Improbable interview process

Improbable's recruitment focuses on identifying talented engineers capable of working on complex distributed systems and simulation challenges. The process is technical and thorough.

1

Application and Screening

Self-paced

CV reviewed for technical background and relevant software engineering experience.

2

Phone Screen

20-30 minutes

Initial call with recruiter covering background and technical interests.

3

Technical Challenge

2-4 hours

Take-home coding or technical problem to demonstrate problem-solving and engineering skills.

4

Technical Interview

60-90 minutes

Detailed interview with engineers discussing technical approach and capabilities.

5

Culture and Final Round

45-60 minutes

Interview with team and leadership assessing fit and interest in Improbable's mission.

Total process typically takes 2-3 weeks from application to offer.

Insider tips

Show strong software engineering fundamentals and interest in distributed systems. Research Improbable's technology stack and applications. Be prepared to discuss complex technical problems. Show enthusiasm for scaling challenges.

Your game plan

How to prepare for your Improbable interview

Improbable's interview process typically takes Total process typically takes 2-3 weeks from application to offer.. Starting your preparation 4 weeks ahead gives you enough time to research thoroughly, build strong examples, and practise until your answers feel natural rather than rehearsed. Candidates who prepare systematically consistently outperform those who wing it — and interviewers can always tell the difference.

4 weeks before

Research Improbable thoroughly — read their annual report, recent press coverage, and leadership interviews. Understand their position in enterprise simulation software and any challenges or opportunities they're facing. Follow Improbable on LinkedIn and note the type of content they share — this reveals what they're proud of and where they're heading. Start reviewing the 5 stages of their interview process so you know exactly what to expect at each step. Identify anyone in your network who works or has worked at Improbable and reach out for an informal conversation.

3 weeks before

Prepare 8-10 STAR examples from your experience that demonstrate Software Engineering Excellence, Technical Depth, Problem-Solving. These should be specific, quantified stories you can adapt to different questions — don't just prepare one example per quality, because interviewers often ask follow-ups or probe the same competency from different angles. If you're applying for Software Engineer or Data Analyst role, make sure your examples are directly relevant to that function. Start practising answering questions out loud — silent preparation and written notes aren't enough, because the interview requires you to articulate your thoughts clearly under pressure.

2 weeks before

Do a full mock interview covering Improbable's typical question types — common, behavioural, and technical. Time your answers (aim for 2-3 minutes per STAR response — shorter feels thin, longer loses the interviewer's attention). Research your interviewers on LinkedIn if you know who they are — understanding their background can help you tailor your examples. Prepare 4-5 thoughtful questions to ask at the end of each stage. Good questions show you've done your research: ask about team challenges, upcoming projects, or how the role contributes to Improbable's strategy.

Final week

Review and refine your STAR examples — tighten any that felt long or unfocused during practice. Check Improbable's news and social media for anything published in the last few days (being able to reference something current shows genuine, ongoing interest). Confirm logistics — location, format (video or in-person), dress code, who you're meeting, and how long to allow. Prepare a printed copy of your CV, the job description, and your question list. Plan your route if in-person. The night before, focus on rest rather than last-minute cramming — confidence and composure matter as much as preparation.

Stand out from the crowd

What Improbable looks for

Software Engineering Excellence

Strong fundamentals in software engineering, data structures, algorithms, and system design.

Technical Depth

Demonstrated expertise in distributed systems, concurrency, or large-scale software architecture.

Problem-Solving

Ability to approach complex technical challenges systematically and creatively.

Curiosity and Learning

Drive to understand complex systems and learn new technologies.

Collaboration

Ability to work effectively in teams and contribute to collective problem-solving.

Get through the door

How to apply to Improbable

Start by studying Improbable's careers page and current openings carefully. Tailor your CV to mirror the language they use in job descriptions — enterprise simulation software employers use applicant tracking systems that scan for specific keywords, and generic applications get filtered out before a human sees them. If you're applying for Software Engineer, Data Analyst, Project Manager, research what each role involves at Improbable specifically, not just the job title in general.

If you're early in your career, look for entry-level or junior positions on Improbable's careers page. Some roles may not be advertised externally, so networking through LinkedIn and industry events can surface opportunities before they're posted publicly. Consider whether Improbable offers internships or work experience placements as a route in — many startups employers use these as a pipeline for permanent roles.

Before submitting your application, research Improbable's recent news, strategy, and any public statements from leadership. Mentioning something specific in your cover letter — a recent project, a company initiative, or a strategic direction — signals that you've done your homework and aren't sending the same application to every startups employer. Referrals from current employees significantly increase your chances of getting an interview, so connect with people at Improbable on LinkedIn and attend any open days or recruitment events they run.

As a smaller organisation, Improbable values personal connections. Attending industry events where their team members speak or exhibit can be an effective way to build rapport before you apply. In startups specifically, personal recommendations carry significant weight.

Mistakes candidates make

  • 1Submitting a generic CV that doesn't reference Improbable or enterprise simulation software-specific experience — tailored applications are significantly more likely to get past initial screening. Mirror the language from the job description and quantify your achievements.
  • 2Failing to research Improbable's values, recent news, and strategic direction before the interview — interviewers can tell immediately when a candidate hasn't prepared beyond reading the About page on the website.
  • 3Not preparing concrete STAR examples that demonstrate Software Engineering Excellence and Technical Depth — Improbable uses competency-based interviewing, so vague answers like "I'm a team player" without specific situations, actions, and measurable outcomes will score poorly.
  • 4Underestimating the preparation timeline — Improbable's process typically takes Total process typically takes 2-3 weeks from application to offer., and the best candidates start preparing weeks in advance. Last-minute cramming shows in your answers.
  • 5Neglecting to ask thoughtful questions at the end of each interview stage — generic questions like "what's the culture like?" waste your chance to demonstrate genuine curiosity about Improbable and the specific role.
  • 6Applying to multiple roles at Improbable simultaneously without tailoring each application — recruiters notice this, and it signals that you're not genuinely interested in any specific position.

Real questions asked

Improbable interview questions

20 questions sourced from real Improbable candidates. Practise answering them out loud before your interview.

  • 1Tell us about your software engineering background and key projects.
  • 2What interests you about distributed systems and simulation?
  • 3Describe your experience with large-scale systems or performance optimisation.
  • 4How do you approach complex technical problem-solving?
  • 5Tell us about a time you designed a scalable system.
  • 6What attracts you to Improbable?
  • 7Describe your experience with the technologies Improbable uses.
  • 8How do you stay current with technology trends?

Your career here

Growth & development at Improbable

Career progression at Improbable follows a relatively clear path for most roles. Promotions typically depend on demonstrating increased responsibility, deeper expertise, and leadership capability — whether that's leading teams, managing clients, or driving technical innovation. The organisation values both specialist depth and the ability to take on broader management responsibilities, so there are usually multiple progression routes available. Don't assume you need to move into management to advance — many startups organisations increasingly recognise and reward technical and specialist career paths.

Improbable invests in structured learning and development programmes, including access to training courses, conferences, and professional certifications. Many employees report that the L&D budget is generous and genuinely encouraged — not just a line in the benefits package that nobody actually uses. Whether it's technical upskilling, leadership development, or industry certifications, there's real support for continuous learning. While formal mentoring programmes may vary across departments, the culture generally encourages learning from more experienced colleagues. Building relationships with senior team members is one of the most effective ways to accelerate your development — seek out people whose career trajectory you admire and ask them for advice regularly.

For enterprise simulation software professionals, Improbable offers exposure to projects and challenges that build a strong CV whether you stay long-term or move on after a few years. The skills and experience you gain — particularly around Software Engineering Excellence and Technical Depth — are transferable across the startups sector and beyond. Internal mobility is possible for strong performers, with opportunities to move between teams, departments, or even locations as your career develops. Many senior leaders at Improbable started in entry-level or early-career positions, which speaks to the genuine career development opportunities available.

Compensation

Salary & benefits at Improbable

Software engineers: £50,000–£75,000. Senior engineers: £75,000–£110,000. Staff engineers: £110,000–£150,000+. Equity packages are standard. Salaries are competitive with London tech sector.

Notable benefits

Competitive equity package
Flexible working arrangements
Comprehensive health insurance
Pension contributions
Professional development budget
Learning and development opportunities
Wellbeing programmes
Flexible holiday policy
Remote working options
Office perks and facilities

Frequently asked questions

What is the technology stack?

Improbable uses a range of modern technologies including C++, Typescript, and custom distributed systems frameworks. Experience with these languages is valuable but not essential if you have strong fundamentals.

How fast-paced is the environment?

Improbable operates at a startup pace with rapid development cycles, regular feature releases, and continuous iteration. The environment is dynamic and challenging.

What is the equity like?

Improbable offers competitive equity packages as part of compensation. As a successful startup, the equity has meaningful value.

How much mentorship is available?

Improbable pairs engineers with mentors and experienced colleagues. The technical culture supports learning through code review and collaborative problem-solving.

What kind of problems do you work on?

Engineers work on distributed systems, simulation engines, performance optimisation, and building scalable platforms. Projects have real-world applications across industries.

Is there remote work?

Improbable offers flexible working arrangements including remote options. Many engineers work hybrid or fully remote.

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