Software Engineer - Cards (Senior)

Job Locations RO-Iasi | RO-Bucharest | LT-Vilnius | LT-Kaunas
Posted Date 2 months ago(14/11/2022 09:45)
Job ID
# of Openings
Banking Engines - Daily Banking
Career Framework Job Title
Senior Software engineer

Who we are

In the last 10 years, Mambu has been revolutionising banking - making it more accessible, more straightforward and more inclusive for everyone. With fresh funding secured and a near €5 billion valuation we have huge ambitions for ourselves and the whole banking sector.


We bring this same sense of innovation and aspiration to how we support our people. We pioneered the 4 day summer work week, have announced the provision of equity for all and launched Our Mambu Deal to capture how we work with each other and what we offer all Mambuvians.


These are just the beginning. We’ll continue to look for ways to make Mambu an even better place to work.

We’re not here to play it safe.

We’re here to change the world.


About the team


The Daily Banking Area has ownership over Mambu’s daily banking accounts, payment transactions and deposits products (personal and corporate). The product area was set up in 2019, and is comprised of Deposits and Payments as two autonomous teams.


The main mission for our Daily Banking teams is to provide highly scalable instant payments, cards processing and issuing microservice solutions. We aim at leading global card instant payments, issuing and processing to enable flexibility for our customers to grow without borders. We are creating a SaaS Card platform that is open, supports rapid composability and does so reliably while constantly evolving. Our compelling proposition saves customers time and money by enabling end-to-end Cards solutions.

What you’ll do

  • Design and implement clean, scalable and reusable code using Java Architect RESTful web services, both sync and async
  • Work with cloud (AWS, Azure, GCP) and the associated architectural patterns (serverless computing, configuration as code, containers, Kubernetes, API gateway)
  • Contribute to development of CI and CD pipelines (GitLab, ArgoCD)
  • Design and implementation of Cards features along with required infrastructure, scaling, performance tuning and optimization
  • Work with our emerging microservices and the associated patterns (e.g. configuration as code, containers, CQRS, CDC)
  • Drive Proof of Concept projects that may hold the base of new features or new directions to be pursued
  • Make templating of messaging easier with a configuration as code approach
  • Maintain application security by tackling vulnerabilities and doing penetration testing

What you’ll bring

Your experience includes:

  • 6+ years of experience working in Java or similar language
  • Cloud Native Architecture (Kubernetes, Docker)
  • Event streaming platforms (Kafka)
  • Rest API design practices
  • Experience with Microservices is a big plus
  • Scaling strategies knowledge
  • Experience with MySQL
  • Know-how of writing own tests (i.e. unit, integration, end-to-end tests)

Your colleagues would say:

  • Coding isn’t your only language - you can communicate crystal clear in English.
  • You want to make a difference, hone your skills, and code because you love it!
  • You are not satisfied with what’s already available and have the ambition to revise and improve things in the name of progres.


Mambu’s future
We are a diverse group of Mambuvians, and we are growing fast. Our eyes are on the future, and we believe we can use our technology and our talent to deliver banking experiences for billions that are also sustainable and inclusive and accessible.

Your future
We’re also focused on delivering a fantastic working experience for all Mambuvians. We pioneered the 4 day working week between June - August many years ago, and continue to innovate around how work should feel and how it should get done. Our Mambu Deal is how we articulate this relationship of support and dedication which drives us all forward. 


Starting salary for this position is from €56,000.00/Yr. gross. This is a full-time equivalent target rate for Lithuania only. Actual rate offered will vary depending on the nature of the role and the breadth of skills and expertise the candidate brings to the role relative to existing Mambuvians.
For the rest of the locations where we advertise this role, the starting salary will be discussed during the recruitment process.


To stay on top of the latest Fintech trends and our success stories, please follow us on LinkedIn.
To experience more of the Mambu culture in action, you can follow us on FacebookInstagram or YouTube.


To explore more about Mambu - the mission we’re on, the world we’re building and the values that drive us - get started at


As part of the recruitment (or HR onboarding) process, you will be required to obtain authorized criminal background and credit screening results, as well as be queried against a sanctions/anti-money-laundering/counter terrorism financing/politically exposed persons screening service and your employment is conditional upon approval of these results.

#LI-Remote tag

Don’t meet every single requirement? Studies have shown that many job seekers (including women, people of colour and people from diverse backgrounds) are reluctant to apply to jobs unless they meet every single qualification. 


Here at Mambu we are dedicated to building a diverse, inclusive and authentic workplace, so if you’re excited about this role but your past experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles.


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