AI-Driven Senior Backend Engineer

You're a technically exceptional engineer who thrives in small, high-performing teams (3-4 people) using AI tools to accelerate development and solve complex problems. You'll help transform monolithic systems into event-driven architectures while practicing true engineering agility beyond traditional SCRUM ceremonies.

At Trengo, we believe in a world where technology empowers the relationship between companies and their customers. That’s why our mission is to build an AI-powered customer engagement platform to replace repetitive work with meaningful conversations. How do we do that? Our software makes it easy for customer-facing teams to communicate with customers via multiple channels, all in one shared inbox. Email, Instagram, Facebook, WhatsApp, live-chat, you name it. With a Series A investment of $36M led by Insight Partners and Peak Capital and becoming one of the four official WhatsApp Business Solutions Providers in the Netherlands, we empower our customers to scale their businesses and optimize the channels their clients truly prefer.

Key Responsibilities

• AI-Enhanced Development: Leverage tools like Cursor to accelerate coding, refactoring, and problem-solving; continuously explore new AI-augmented development techniques;
• Architectural Transformation: Lead initiatives to decompose monolithic systems into event-driven microservices; design scalable, resilient backend services;
• True Agility: Embrace lightweight, outcome-focused engineering practices that deliver value quickly without ceremony overhead; implement CI/CD for rapid, confident releases;
• Technical Leadership: Collaborate closely with peers through pair programming and knowledge sharing; make pragmatic technical decisions that balance innovation with stability.
  
  

What You Bring

• Strong backend development expertise with experience in distributed systems (PHP, Node.js, MySQL, Kafka, MongoDB, Vue.js or similar);
• Advanced prompting techniques needed both in coding and in advancing our AI Agent in the product;
• Experience with or enthusiasm for AI-augmented development tools (Cursor, Windsurf or similar);
• Pragmatic approach to solving complex problems with simple, maintainable solutions;
• 5+ years of professional software development with demonstrated technical leadership;
• Passion for transforming legacy architectures and embracing emerging technologies;
• Results-oriented mindset focused on outcomes rather than processes;
• Collaborative spirit with excellent communication skills.
  
  

What We Offer

• Finding yourself in a fast-growing company where your career can evolve. With the help of your number one supporter, your manager, you will follow our departmental growth tracks to pursue the career you want. This is one of the reasons for our positive Glassdoor reviews (4/5).
• We really value flexibility and trust our people. That’s why we work hybrid, and our people can work from abroad for 60 days per year.
• Free sessions with on-demand psychologists from OpenUp. Your mental health is important to us.
• An education budget to feed your curiosity and 2 extra days off for your courses or conferences, if needed.
• 28 vacation days to rest, have fun, and travel as you wish.
• Internet and phone allowance every month!
• Fancy learning Dutch? We also offer Dutch courses for our international employees!
• When you work from our beautiful office: you can bet we have delicious warm lunches together prepared by our in-house chef and workplace experience team. Also, your traveling expenses to Utrecht will be reimbursed.
  
  

Our Engineering Culture

We're building small, empowered teams that leverage AI to solve complex problems efficiently. We value true agility over ceremonies, focusing on outcomes rather than processes. Our engineers continuously learn, experiment, and deliver exceptional results in an environment where senior talent can make a significant impact.