Senior Product Engineer (m/w/d)

Sharpist GmbH - Senior Product Engineer (m/w/d)

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Senior Product Engineer (m/w/d) Hybrid Berlin , Berlin , Germany

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Job description Sharpist exists to help people become more self-aware and effective at work and in life. We combine human coaching with an AI Coach so that employees at every level can access meaningful support when they need it. Our goal: to make coaching scalable – not to replace humans, but to enhance them. As a Staff Product Engineer, you sit where that product meets the people using it. Your work turns that support into something people actually use to reflect, learn, and act.

🎥 Meet our AI Coach in action — and see how Sharpist empowers leaders and talents to grow every day:

The Role You’ll take ownership of product features from problem to production.

That means understanding the user and business need, exploring possible solutions, writing a clear technical specification, implementing the feature, releasing it, and learning from how people use it.

You won’t simply receive finished tickets and build exactly what is written. You’ll be expected to ask good questions, identify edge cases, make pragmatic trade-offs, and help shape the right solution with Design and Engineering.

We’re working toward a one-week cycle, although we’re not there yet. For now, we’d rather ship a useful first version at roughly 70%, learn from real usage, and improve it than spend too long polishing something in private.

LLMs now handle a growing share of implementation. You should use them as part of your everyday workflow—for exploration, specifications, prototyping, and coding. At the same time, you need the judgment to recognise when generated code, an abstraction, or a data model is wrong or likely to create problems in production.

What you’ll do

First 30 days Learn the Sharpist product, including the AI Coach, coaching platform, and learner journey

Understand our architecture, development workflow, and ways of working

Pair with engineers and cross-functional colleagues to understand how we take ideas into production

Ship your first improvements to the product

First quarter Own your first feature end-to-end: understand the problem, shape the solution, write the technical specification, build and release it

Work closely with Product and Design to turn customer and user insight into a focused product experience

Use LLMs as a core part of your workflow while validating their output for correctness, maintainability, security, and performance

Contribute across the stack, including frontend, backend, data, testing, and deployment where needed

Talk to users and stakeholders when direct context will help you make better decisions

Year one

Own multiple product features from discovery through measurement and iteration

Become a reliable technical owner for a meaningful part of the product

Help improve engineering quality through better tests, observability, documentation, and development practices

Contribute ideas that make it easier for the team to ship valuable software quickly and safely

The Stack TypeScript, React, React Native, Node.js, MongoDB, Redis, Docker, Google Cloud, BigQuery, Google Dataform, Lightdash, Prometheus, Grafana.

You don’t need experience with every technology listed. We care more about strong engineering fundamentals, the ability to learn quickly, and the judgment to choose appropriate solutions.

Job requirements Must-haves: 6+ years of professional software engineering experience.

You think like a Product Engineer: you’ve owned full feature development, including defining the solution rather than only building what someone else specified

You can write a clear, technically grounded specification, and you know what makes one bad

You have strong intuition for UX: you notice what confuses users, what creates friction, and what feels right

You use AI and LLM tools as a core part of how you work across specifications, prototyping, and implementation, not as a gimmick. Self-directed experiments and side projects count as evidence

You speak and write fluent English

Valid work permit in Germany

Nice to have: Experience building AI or LLM product features, including prompting, evaluation, or guardrails

Experience working in a Startup, B2B SaaS or HR tech environment

What We Value Ownership: When ownership is unclear, you step forward. When you're blocked, you find a solution; you don't shift the problem up

Clarity: You write specs that don't need a meeting to explain

Judgment: You know when something is technically sound vs. technically plausible-but-painful

Speed : You move fast without creating rework for others

Mission belief: You genuinely care about helping people. That's why you're here

What We Offer Unlimited Coaching: Access certified coaches to support your personal and professional growth whenever you need it.

Hybrid working model : Enjoy the flexibility to work both remotely and on-site.

Growth Budget: 1000 EUR per year dedicated budget for courses, workshops, and certifications.

Pension Scheme (bAV): Attractive retirement savings program.

Quarterly Magnetic Week : Connect with your colleagues at exciting events that inspire and excite.

The "Builder" Environment: A culture that values shipping, learning, and outcome over output.

💙 We are an equal opportunity employer and we encourage people of every ethnic background, gender, ability, and sexual orientation to apply. 🙂

✨ Curious what life at Sharpist looks like? Check out here - from Tuesday BBQs to Thursday breakfast, it's all part of what makes our team so special!

Apply now if this captures your interest and you want to take part in the personalisation of learning for every employee worldwide. We are excited to get to know you!

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Write it here instead Questions Please fill in additional questions Are you able to work onsite in our Berlin office for at least 3 days per week?

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What is a feature that you defined from scratch — what was the problem, the spec, what did you ship, how did you measure.

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