Senior Backend Engineer (m/w/d)

Permanent employee, Full-time · Berlin, hybrid

THE IMPACT YOU WILL MAKE

From socks, and petfood, to cosmetics, charles is helping countless brands reach their loyal customers every day, one conversation at a time. As a Senior Software Engineer at charles, you’ll help drive our product and infrastructure forward, enabling us to revolutionize conversational commerce.

You’ll work closely with the other Engineers to build scalable, high-performing systems, while improving system architecture, resolving tech debt, and ensuring seamless user experiences. Your contributions will result in reliable, data-driven solutions that support millions of users and push the boundaries of messaging-driven commerce.

THIS IS WHAT YOU WILL BE DOING

• Moving the product and infrastructure forward, ensuring scalability and reliability.
• Extending the Charles API to:
  • Integrate messaging with CRMs, CDPs, and shop systems;
  • Develop scalable data models, integrations, and SDKs;
• Writing clear, maintainable documentation and ensuring reliable, well-tested code.
• Monitoring systems for performance and implementing data-driven improvements.
• Reviewing your peers code and contribute with the company’s growth.
• Break product initiatives to small technical deliveries and estimate the workload.

YOU’LL FIT GREAT WITH THESE SKILLS AND VALUES

• 5+ years of experience in software engineering and integrations.
• Proficiency in Node.js, TypeScript and at least one other high-level programming language (Java, Go, Rust, Python).
• Experience deploying and managing applications on cloud platforms, preferably GCP.
• Experience with infrastructure as code tools.
• A testing-first mindset with strong monitoring skills and the ability to write reliable, scalable code.
• Familiarity with data protection regulations would be a big plus such as GDPR and designing compliant data architectures.
• Data-driven decision-making and creativity in problem-solving.
• Strong communication skills, with the ability to effectively communicate technical concepts to both technical and non-technical stakeholders.
• Mentoring skills to help the whole team to grow as we scale.

OUR STACK

• Node.js/TypeScript, NestJS
• VueJS, Tailwind
• PostgreSQL, PubSub, Redis, BullMQ
• GCP, Kubernetes
• Prometheus/Grafana

Meeting all requirements is not necessary to apply. We encourage candidates who meet some but not all of these qualifications to submit their application.

THINGS WE OFFER

• Working on challenging and impactful projects at the forefront of one of the most innovative industries in Europe
• Collaborating with some of the leading experts in Conversational Commerce and disrupting a fast-growing industry
• Joining forces with a unique community of Tech, Product, Sales, Success, and Marketing experts committed to building the best product in Conversational Commerce
• Having high visibility and impact across the business with the option to own and drive new initiatives
• Celebrating our major and micro-wins as well as getting to know each other better at regular team-building events
• Sharing VSOP (virtual stock options) in the ownership and success of charles
• Working in a vibrant office in the heart of Berlin overlooking the Wall memorial
• Earning a competitive compensation package

What else we offer?

• Urban Sports Club membership
• A weekly personal trainer
• Free company lunch on Thursdays
• A friendly, open, multicultural work environment
• Dog-friendly office in the heart of Berlin
• Discounts on BVG tickets

About us

It’s better to have a conversation

charles is a SaaS startup that enables brand to build personal relationships with customers. With our software, businesses can chat with customers, send marketing campaigns, sell products, analyze results and automate processes. And we go beyond the tech to offer ongoing consultancy for future success. Our vision is to connect any kind of business with their customers via messaging apps to let them do what they need.

Founded by Kapten & Son co-founder, Artjem Weissbeck, and ex-McKinsey ecommerce lead, Andreas Tussing. charles is backed by Salesforce Ventures, Accel and HV Capital and has raised over EUR 30 million to build the global leader in conversational marketing SaaS for global consumer brands.

charles and diversity: be yourself and no-one else

Different perspectives bring innovation and richer work environments. We’re committed to building an inclusive company where you always feel like you belong, whatever your age, gender identity, ethnicity, religion, sexual orientation, disability, status or neurodiversity. These values sit at the heart of our hiring process, so we can create a welcoming workplace where everyone feels valued and heard.