Sonar

AI Prompt Engineer

Posted 2 Days Ago

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Bochum, Nordrhein-Westfalen

Hybrid

Mid level

Artificial Intelligence • Cloud • Information Technology • Security • Software

Sonar is committed to enabling developers and organizations to build better code for better software.

The Role

The AI Prompt Engineer will architect and refine AI prompts, collaborate with teams to innovate AI automation solutions, optimize AI performance, and document processes at Sonar.

Summary Generated by Built In

Who is Sonar?

Sonar helps prevent code quality and code security issues from reaching production, amplifies developers' productivity in concert with AI assistants, and improves the developer experience with streamlined workflows. Sonar analyzes all code, regardless of who writes it — your internal team, genAI, or third parties — resulting in more secure, reliable, and maintainable applications. Rooted in the open source community, Sonar’s solutions support over 30 programming languages, frameworks, and infrastructure technologies. Today, Sonar is used by +7M developers and 400K organizations worldwide, including the DoD, Microsoft, NASA, MasterCard, Siemens, and T-Mobile.

We believe in developing great products that are supported by great internal teams and a strong culture. We are highly committed to and obsessed with the company, users, each other, and our open source community. We have high standards and hold each other accountable for acting with positivity, dedication, thoughtfulness, empathy, and passion daily.

We are deliberate with our decisions with high clarity of intention. At the same time, we feel extreme urgency and move forward quickly.

And lastly, we are highly effective and operationally efficient. We operate collectively as One Team to accomplish our goals.

At Sonar, CODE is more than just an acronym – it's a mindset that defines daily operations.

Why You Should Apply:

At Sonar, we’re a group of brilliant, motivated, and driven professionals working hard to help supercharge developers to build better, faster. Sonar helps to continuously improve code quality and code security while reducing developer toil. This means that developers can focus on doing more of what they love and less of what they don’t. Our solutions don’t just solve symptoms of problems – we help fix issues at the source – for all code, whether it's developer-written, AI-generated, or from third parties.

We have a dynamic culture with employees worldwide and hub offices in the USA, Switzerland, the UK, Singapore, and Germany. Team members should be able to come to work every day, work on a product they are proud of, love what they do, and feel energized by their peers. With our roots deep in the open source community, we’re all about the mission: supercharge developers to build better, faster.

Your Mission

The Business Technology team is Sonar's innovation engine, and we're harnessing the power of generative AI to redefine productivity and enhance our services. We are looking for a highly skilled AI Prompt Engineer to be a key architect of our intelligent automation strategy. In this role, you will be laser-focused on designing, building, and optimizing the sophisticated AI agents and prompts that power our internal systems, primarily leveraging Google's Gemini and the Glean enterprise platform. You will be instrumental in shaping how Sonar employees interact with AI, creating intuitive, effective, and powerful solutions that solve real business problems.

What You'll Do

Architect AI Interactions: Design, develop, and meticulously refine complex prompts and prompt chains to build robust AI agents within Glean and with Gemini, transforming business requirements into functional, intelligent systems.
Collaborate & Innovate: Partner directly with product managers, software engineers, data scientists, and business leaders to identify high-impact opportunities for AI automation and build the solutions.
Optimize for Performance: Rigorously test, analyze, and iterate on prompt performance. Use data-driven insights to enhance the accuracy, efficiency, and reliability of our AI agents' responses.
Build a Center of Excellence: Develop and manage a scalable library of advanced prompts, establishing best practices for AI interaction that will be adopted across the organization.
Stay Ahead of the Curve: Remain on the cutting edge of advancements in generative AI, multi-turn dialogue systems, and prompt engineering techniques to ensure our solutions are best-in-class.
Troubleshoot & Refine: Act as the subject matter expert for debugging and resolving issues related to prompt performance and AI model behavior.
Document for Scale: Create clear, comprehensive documentation for all prompts, interaction guidelines, and agent functionalities to support widespread adoption and understanding.

The skills you'll demonstrate

Proven Prompt Engineering Expertise: Demonstrated experience in a role focused on creative/technical writing, conversation design, or prompt engineering, with a portfolio of successful projects.
Deep LLM Understanding: Strong grasp of Natural Language Processing (NLP) concepts, machine learning fundamentals, and hands-on experience with Large Language Models (LLMs) like Gemini. Experience with enterprise AI platforms like Glean is a significant advantage.
Exceptional Communication: A master of language with the ability to craft clear, concise, and effective prompts that elicit precise responses from AI models. Fluency in English, with a strong command of business and technical vocabulary, is essential.
Analytical & Creative Mindset: The ability to think critically to deconstruct complex problems and creatively architect innovative AI-powered solutions.
Technical Acumen: Proficiency in Python for scripting, interacting with APIs, and building testing frameworks for AI/ML applications.
Relevant Background: A bachelor's degree in Computer Science, Linguistics, Communications, or a related field, or equivalent practical experience.
Proactive & Pragmatic Ownership: A highly autonomous, results-oriented individual who is comfortable navigating ambiguity and complexity. You have a "can-do" attitude and are self-confident enough to challenge the status quo while actively seeking and providing feedback to elevate the team.

Why You Will Love It Here:

Our culture and mission set us apart. We have a dynamic work culture that values respect and kindness and embraces the right to fail (and get right back up again!).
Great people make a great company. We value people skills as much as technical skills and strive to keep things friendly while still being passionate leaders in our domains.
We have a flexible work policy that includes 3 days in-office and 2 days work-from-home each week for those located near our office locations; some locations such as Dubai, India, Japan and Australia operate fully remotely.
We have a growth mindset. We love learning and believe continuous education is critical to our success. In an ever-changing industry, new skills are necessary, and we're happy to help our team acquire them.
As the leader in our field, our products and services are as strong as our internal team members.
We embrace transparency with regular meetings, cascading messages and updates on the growth and success of our organization.

Benefits of Working With Sonar:

Pension Scheme: 1st Pillar (Unterstützungskasse): Automatic, financed by Sonar, 3% of gross salary, an additional benefit in addition to your salary.
Pension Scheme:2nd Pillar (bAV): Voluntary, 15% contribution by Sonar from social security savings.
We encourage usage of our robust time-off allocations with 28 PTO days for our employees based out of the Geneva region, plus additional days based on seniority and circumstances.
Sonar recognizes holidays on working calendar days. If the holiday date occurs on a Saturday, we will recognize the day on the preceding Friday. If the holiday date occurs on a Sunday, we will recognize the day on the following Monday.
Public transport reimbursement of 60% for annual subscription.
Global workforce with employees in 20+ countries representing 35+ unique nationalities.
We have an annual kick-off somewhere in the world where we meet to build relationships and goals for the company.

We Value Diversity, Equity, and Inclusion:

At Sonar, we believe that our diversity is our strength. We are a global company that values and respects different backgrounds, perspectives, and cultures.

We are committed to fostering a diverse and inclusive work environment where everyone feels valued and empowered to contribute their best. We are proud to be an equal opportunity employer and welcome all qualified applicants, regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

All offers of employment at Sonar are contingent upon the precise results of a comprehensive background check and reference verification conducted before the start date.

We do not currently support visa candidates in the US.

Applications that are submitted through agencies or third party recruiters will not be considered.

Top Skills

Glean

Google Gemini

Python

What the Team is Saying

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The Company

HQ: Geneva

800 Employees

Year Founded: 2008

What We Do

Sonar provides the essential verification layer for the AI-driven development era, ensuring all code—whether human-written or AI-generated—is code you can trust.

Today, AI coding tools are generating explosive volumes of code. This has created an "engineering productivity paradox" : faster code writing doesn't automatically lead to faster, safer software delivery. The new bottleneck is verification.

Sonar solves this. Our industry-leading platform, SonarQube, integrates code quality and code security analysis directly into the development workflow by automating reviews and providing actionable code intelligence for all code—first-party, AI-generated, third-party open source. \

For organizations, Sonar provides the critical SDLC governance and compliance reporting needed to de-risk AI adoption and manage standards at scale. We empower teams to "vibe, then verify" — innovating at the speed of AI without sacrificing the quality, security, or maintainability of their codebase.

We are driven by a deep belief in our people, a commitment to excellence, and an unwavering dedication to delivery. We operate as a united group where our collective success is the sum of each individual's contributions. Our company culture is driven by the values of CODE: Committed, Obsessed, Deliberate & Effective. This mindset reflects our culture of creativity, collaboration, and pride in the work we do.

Rooted in the open source community, Sonar’s solutions support over 35 programming languages, frameworks, and infrastructure technologies. Today, Sonar is used by 7M+ developers and 400K organizations worldwide, including Barclays, MasterCard, and T-Mobile.

Sonar is headquartered in Geneva, Switzerland with additional offices in Austin, Texas; Annecy, France; Bochum, Germany; London, England; and Singapore. The company is rapidly growing with over 750 employees!

Join us in our mission to solve the trillion-dollar challenge of bad code!

Why Work With Us

We are a product-first company, with a people-first culture. Every employee has the opportunity to grow and learn. We promote from within, provide regular feedback and professional development opportunities, value the right to fail along with respect and kindness and work with team members to achieve their full potential.