About the role
At Mondu, we’re dedicated to building innovative, scalable solutions that transform Fin Tech. Our fast-paced, dynamic environment offers the opportunity to work on cutting-edge projects while growing your skills as we scale the organization. We’re looking for a Senior Go Lang Engineer with expertise in Go to design, implement, and continuously improve our backend services. Experience with Ruby and React is a plus, and we value individuals with a growth mindset and strong collaboration skills
What you’ll do

• Build scalable, low-latency real-time order processing services in Go

• Take end-to-end ownership of feature development, ensuring reliability, performance, and quality

• Collaborate with cross-functional teams and stakeholders to align goals and develop smooth rollout strategies
• Facilitate technical discussions through ADRs and participate in peer reviews
• Provide technical support and mentorship to peers and junior team members

Who will you work with?
Umair joined Mondu in 2022 with a strong background in fintech and firsthand startup experience as a co-founder, bringing a passion for building both exceptional products and high-performing teams.
He began his journey at Mondu as one of the early engineers, focusing on key features such as payouts and offline sales. Over time, he transitioned into the role of Engineering Manager, where he now leads a team dedicated to building exceptional products and driving engineering excellence.
Umair believes in balancing hands-on technical contribution with a commitment to supporting each team member’s growth. He fosters a collaborative, empowering environment where engineers are encouraged to take ownership, innovate, and thrive. Umair’s leadership style focuses on autonomy and mentorship, providing clear pathways for career development and a culture that values individual contributions

Requirements
What you need to succeed

• • Strong proficiency in Go, with extensive experience in building backend services
  • Experience with event driven architecture. Knowledge of Kafka is a plus
  • Experience in setting up and managing CI/CD pipelines
  • Proficient in Kubernetes for container orchestration and microservices deployment
  • Proficient in implementing monitoring and observability practices
  • Hands-on experience with AWS services and infrastructure
  • Proficient in SQL databases, especially Postgre SQL.
  • Strong communication skills with the ability to clearly explain technical concepts, collaborate effectively, and share ideas and perspectives.
  • Adapt quickly as the organization grows, staying open to new technologies and continuously refining your skills

It would be a plus if you also:

• Have frontend experience, in particular with React
• Have Ruby experience

Benefits
What's in it for you?

• € 1000 per year for you to contribute to your learning & development to help you grow professionally and personally.

• € 300 per year for you to endorse team build, including dinners, games, and events

• 28 vacation days per year (increasing 1 day every year up to 30)

• We welcome you to our office in the centre of Berlin 2-3 days a week.

• Take advantage of our Workation policy, allowing for up to 6 weeks every year of work outside of Germany (some restrictions apply)

• Subsidised membership options to boost your physical and mental well-being with Well Hub

• € 30 per month of mobility allowance.

• Tax relief for payments into our Business Bike scheme.

• You can accelerate your career and take ownership of your work and development in a flat hierarchy where 360 feedback is encouraged

Are you a Monduneer in disguise?
Working in a truly diverse group makes us stronger and more resilient. Furthermore, it enables an unfair advantage - learning from each other, seeing different perspectives, and considering a broader range of variables in our decision-making. That is what being a Monduneer is all about.
Thus, regardless of your background, age, disability, gender, parental status, race, religion, sexual orientation, educational background, or any other aspect you feel is a statement of your diversity, we look forward to discussing your role in mind.
If you believe you are a Monduneer in disguise, and it's time for you to shine, submit your application, and we'll take it from there.

Meet Mondu
At Mondu, we have the vision to disrupt and become the leader in B2B payments. We are building a Buy Now, Pay Later solution for B2B e-commerce businesses. Our business will address new customer needs in a vast new market segment. To do so, we will need to re-invent core parts of the payment experience to serve the needs of business customers. Moreover, we will need to listen closely to local customer needs and tailor our approach to the requirements of local customers in Europe.
After a hugely successful initial funding round, we are looking to grow at a phenomenal pace, and this will not be possible without the right people in the team.