Posted 3 days ago
Backend Engineer
AI Summary
Node.js Backend Engineer at Nationale Nederlanden Oxygen in Madrid. Designs and implements backend solutions, automates processes, integrates systems, and leads technical decisions while mentoring engineers and contributing to a tech-driven culture.
About this role
Nationale Nederlanden Oxygen is a subsidiary company of Nationale Nederlanden Group located in Madrid, Spain. We deliver IT services and solutions for the different international Business Units from Nationale Nederlanden Group
What is the purpose/mission of the position?
As a Node.js Backend Engineer, you will have plenty of opportunities to help us take the needed steps to modernise our backend applications, automate and improve on processes. You will work with cutting-edge technologies at one of the largest financial institutions in the Netherlands. Here, you will be uniquely positioned to lead important changes at NN, which aims to become a leading digital retail bank.
What you are going to do?
As our Node.js Backend Engineer, you’ll be evaluating our technological landscape, designing and implementing automation of our processes where possible, investigating, analysing and fixing bugs, integrating systems, running them and others already deployed. And you will also help us create a more tech-driven culture at NN by being an ambassador and helping our teams embrace our new way of working, which marries client centricity with state-of-the-art software.
Your main responsibilities include:
- Defining and evolving the architecture of our solutions
- Developing and maintaining unified solutions incorporating coding standards
- Proactively contributing to Savings, Investments and Bank Assurance’s strategic approach to ensure we are future-proof
- Using software to create best-in-class automation and integrations
- Closely collaborating and aligning with the Engineering Guild and facilitating community contributions
- Taking responsibility as editor-in-chief through code reviews and final decision-making
- Coaching and mentoring other engineers from our and other Domains
Who you are
Experienced in building high-quality software, you can work well with business colleagues and engineers. You are not afraid to speak your mind and you have lots of ideas on how to build a tech-led culture. When it comes to GIT, pipelines, package management and unit/integration testing, you speak the same language as our engineers, but you may also be able to teach them a thing or two. Furthermore, you have:
- 8+ years of experience in software development as a Node.js backend engineer
- Excellent knowledge of JavaScript/TypeScript
- Excellent knowledge of integration patterns using REST and GraphQL APIs
- Good understanding of CI/CD concepts and a DevOps mindset (“you build it, you own it”)
- Some knowledge of React is a plus
Who you will work with
You will be working in a small cross-functional Agile scrum team, side by side with engineers and skilled functional maintainers. You will be continually engaging in technical discussions to refine user stories so our customers can enjoy a smoother experience across our channels. Known for its informal culture, this small team is fun and friendly.
What do we offer?
As part of our Employee Experience, we offer you a range of competitive benefits that are available to you in order to improve the physical, mental, and professional wellbeing of our workers. Among the benefits are:
- We work with a hybrid model
- Starting financial aid so you can equip your work space at home
- Allowance and telework subventions
- Flexible working hours and 2 months of intensive working hours in summer so you can fully take advantage of your time
- We hire a life insurance and a pension plan for all our employees
- We establish objectives bonus as a performance reward
- You can get to the office as you please. We have a free parking lot for cars, motorbikes, electric cars with chargers, and bikes.
- Get to know our flexible retribution facilities such as transport card, nursery checks, health insurance with Sanitas, trainings…
- We care about people. That is why we are involved in society by facilitating volunteer actions and time to all our employees.
- We care about your wellbeing. We have a Wellness Program available.
- We are digital and we love technology. Also, every team works under agile methodology.
If you think that your profile can fit with us and you like who we are, do not hesitate to sign in to our offers. We are waiting for you!
In Nationale-Nederlanden we are committed with diversity. We are proud to be an inclusive organization and we offer equal opportunities, regardless of race, cultural background, gender, gender identity, religion, national origin, age, disability, marital status, and sexual orientation. One of our core values is taking care of our employees so they can give their best within a respectful environment.
Skills
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Market data for backend engineer roles
All reports →- Role reportBackend engineer jobs, Sep 2026: new listings up 22.7% in a weekBackend engineer new listings rose 22.7% this week to 481, with 4,949 active roles. Senior positions make up over half. Apply early to new openings.
- SeriesSalary reportsWhat employers publish in job postings, by level and workplace. Not self-reported pay.
- Market overviewState of tech hiring, September 2026: up 4.8%Tech hiring rose 4.8% month over month in September 2026, with 411,122 new listings. Customer support and account executive roles led the growth.