Senior Software Engineer - Deposits


Heard of composable banking? The concept originated here at Mambu. We've been champions of composable for over a decade. Mambu is the only true SaaS cloud core banking platform. Our unique and sustainable composable approach means that independent engines, systems and connectors can be assembled in any configuration to meet business requirements and the ever-changing demands of your customers. Over 280 banks, lenders, fintechs, and even retailers in 65 countries turn to us to help them build modern digital financial products faster, securely and cost-effectively. Ready to become a Mambuvian? Check our Jobs tab.

Only considering candidates who are eligible to work in Romania ⚠️

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.

Meet our Team

Deposits are a part of Mambu SaaS banking platform core. As Mambu rapidly expands into different regions all over the world, we are keeping pace and introducing new features, like “Negative interest tiered by bands” for German banks, “Maximum balance” (which can be increased as client provides more information) for Chile, or “sub-accounts” for N26 (customer similar to Revolut).  With the tenet “We build it, we ship it, we own it!”. The mission of the Deposits Team is to build business features, with high emphasis on scalability, sustainability and quality, while constantly improving technical architecture to sustain growth. Also, we have an interesting challenge ahead, introducing asynchronous APIs to early adopters.

The team is operating in an entirely JAVA based (db mySQL) API-centric solution, within Mambu product core, hosted on AWS and Google Cloud (working on becoming cloud-agnostic).

Things you will definitely like about our team: we are not supporting the business - we are the business! We don't have a requirement to track and register spent work hours. And we can take 2 paid learning days per month to get better at what we do.

What you’ll do

  • Take ownership of customer issues reported while on-call and manage the problems through to resolution
  • Research, diagnose, troubleshoot and identify solutions to resolve customer issues
  • Follow standard procedures for proper escalation of unresolved issues to the appropriate internal teams
  • Provide prompt and accurate technical feedback to customers if requested
  • Follow the SLA for issues with respect to the severity
  • Build customer-oriented features, technical improvements and contribute in developing POCs/MVPs
  • Write functional and integration tests and be fully responsible for the quality of an end-result

What you’ll bring

Your experience includes:

  • 5+ years of experience working with back-end systems (Java) based on relational databases (MySQL, PostgreSQL or similar) and building REST APIs
  • Excellence experience managing operational load (incident investigation and resolution, postmortem actions, bug fixing)
  • Unit testing knowledge (JBehave, JUnit ) and familiarity with some of our tech stack: IntelliJ, Guice, Kafka, RDS, Redis
  • Knowledge of scalable and resilient application architecture
  • You’ll get an additional thumbs up if you have experience working in an AWS environment; Know the concepts of performance testing

Your colleagues would say:

  • Coding isn’t your only language
  • You have excellent written and verbal communication skills in English
  • You are not satisfied with what’s already available and have the ambition to revise and improve things in the name of progress
  • You love working as part of a team, collaborating and challenging each other to find the best solutions

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.

The base salary for this position is €5800 gross (before taxes) monthly. 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 Facebook, Instagram or YouTube.


The SaaS cloud banking platform with a unique composable approach.

Working Week

We have a 4 day work week in the summer months

Our 4 day week = any day off

Our Vacation Policy

Our vacation policy is 22 days

Remote Working Policy

Mambuvians come from over 30 countries across six continents with our HQ in the Netherlands. We offer remote working.

  • Netherlands
  • Germany
  • USA
  • UK

Company Benefits

  • Health insurance
  • 401k
  • Flexible working hours
  • Generous parental leave
  • Dentalcare
  • Equipment allowance
  • Professional Development Budget

Our Team

We're a team of 810 across 19 departments:

  • engineering
  • consulting
  • sales
  • support
  • marketing
  • business development
  • product management
  • finance
  • +11 more teams

Desirable Skills and Experience

  • Java
  • Back-end systems
  • Relational Databases
  • Building REST APIs
  • Operational Load handling
  • English Communication
  • Team Collaboration
  • Ambition to Improve

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