Senior Backend Engineer - RouteOpt team

Are you a backend engineer who loves solving complex problems with real-world impact? As an Engineer in the Route Optimization team, you’ll help shape the algorithms and systems that power thousands of deliveries through optimized routes every day. You’ll collaborate across tech and operations to build scalable backend services, solve logistics challenges, and drive smarter, faster, and greener deliveries through your code.

Your Future Team:

Our Route Optimization Engineering team develops and maintains the intelligent systems that plan the most efficient routes for Instabee's box and home deliveries, balancing complex constraints while giving Instabee a competitive edge and impacting KPIs such as accuracy, delivery success, delivery time and cost.

In the RouteOpt team, we believe in having fun while working together. Our team is highly collaborative, and we value each other's knowledge and experience, giving ourselves the chance to make important decisions that drive our work forward. With many exciting projects on the horizon, we’re looking for someone who loves learning, sharing ideas, and working closely with others to solve unique and challenging problems. Most importantly, we make sure to enjoy the journey together!


Some of the things you’ll do

• Build, own, and run backend services with full codebase accountability and a focus on quality, maintainability, and scalability.

• Design and implement data structures that map complex real-world logistics into simple, efficient solutions.

• Participate in architectural discussions and help shape both technical and product direction

• Collaborate with product and operations teams to understand user needs and translate them into valuable technical solutions

• Contribute to a modern product team motivated by solving real user problems and meeting their needs with effective and creative solutions.

• Lead end-to-end development of the backend application, from idea to deployment

What We're Looking For

At Instabee, we value individuals who are eager to learn and grow. Your enthusiasm for developing your skills will be a major asset as you join our team. If you’re a skilled problem solver who loves coding and making complex systems work, this is the place for you.

What's most important to us is finding the right match for our team. We have senior Engineers who will be involved in coaching and mentoring to help you get up to speed quickly.

Beyond that, we imagine you have some of the following points on your resumé:

• +5 years backend experience in a modern tech environment

• Proficiency in Java and Python

• Solid understanding of relational databases

• Hands-on experience with cloud providers like GCP or AWS

• Familiarity with Kubernetes, Terraform, Helm, and CI/CD tools like GitHub Actions

• Degree in Computer Science or equivalent work experience.

• Strong communication skills in English

Nice to have:

• Experience with machine learning or optimization algorithms

• Familiarity with Golang (widely used at Instabee)

• Experience with frontend development with React or Websockets

If this is you then we can’t wait to meet you!

What you’ll get

We can promise you that you will be challenged, develop your skills and have the opportunity to work with truly amazing and competent colleagues. If you like changes and want to set new processes and ways of working - this is the place for you!

Of course, we have all the necessary and standard benefits in place, but in addition to this, we can also offer:

• 🌇 Sky-High Office: Modern and newly renovated with a 360-degree view around Stockholm.

• 🐶 Puppy Friendly: Bring your dog to work - we've got a whole floor for our furry friends!

• 🏓 Fun & Games: Ping pong, Shuffleboard, Foosball, and even a Karaoke Room for your leisure time.

• 👶 Parental Pay for Six Months: Step away from work and provide the best