Senior Full-Stack Engineer | BMG @ING Hubs Romania

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Senior Full-Stack Engineer | BMG @ ING Hubs Romania

senior · Technology / Software Development

Discover ING Hubs Romania

ING Hubs Romania offers 130 services in software development, data management, non-financial risk & compliance, audit, and retail operations to 24 ING units worldwide, with the help of over 2000 high-performing engineers, risk, and operations professionals.

We started out in 2015 as ING’s software development hub, then steadily expanded our range to include more services and competencies. Now we provide borderless services with bank-wide capabilities and operate from our office in Bucharest.

Our tech capabilities remain the core of our business, with more than 1800 colleagues active in Data Management, Touchpoint Channels & Integration, Core Banking, and Global Products. 

We enjoy a flexible way of working and a highly collaborative environment, where fair and constructive feedback is encouraged.  

For us, impact isn't a perk. It's the driver of our work. We are guided and rewarded by a shared desire to make the world a better place, one innovative solution at a time. Our colleagues make it their job to do impactful things and they love doing it in good company. Do you? 

The Mission

Bank Mendes Gans (BMG) is a specialized wholesale bank and a wholly owned subsidiary of ING Group, focused on delivering advanced cash management, liquidity management, and transaction banking solutions to multinational corporations around the world. Combining deep financial expertise with innovative technology, BMG helps global organizations optimize working capital, centralize treasury operations, and manage complex international cash flows efficiently and securely.

BMG serves large multinational companies, international corporate groups, and globally operating enterprises that require sophisticated treasury and liquidity management capabilities. Its customers span a wide range of industries and rely on BMG to provide scalable financial infrastructure that supports their global growth, operational efficiency, and financial resilience.

BMG offers a comprehensive portfolio of treasury and transaction banking services, including cash pooling, in-house banking, intercompany netting, domestic and international payments, virtual account structures, liquidity optimization, financial messaging, and cash visibility solutions. These services enable clients to centralize financial operations, streamline cross-border transactions, reduce operational complexity, optimize liquidity across multiple entities and markets, and gain real-time insight into their global cash positions. Through close integration with ING’s global banking network and technology platforms, BMG delivers reliable, scalable, and innovative solutions that support the treasury needs of some of the world's largest and most internationally active organizations.

Your day to day

As a Senior Full Stack Engineer, you will be a key contributor in a multidisciplinary, self-sufficient squad responsible for designing, building, operating, and continuously improving BMG's global treasury and transaction banking platforms. You will work closely with Product Owners, Business Analysts, Architects, peer DevOps engineers, and business stakeholders to translate complex treasury requirements into scalable, secure, and resilient technology solutions.

Engineering & Delivery

• Design, develop, test, and maintain business-critical applications across both frontend and backend components.

• Build modern APIs, integration services, and user-facing functionality that support BMG’s liquidity and information management solutions.

• Participate in architecture discussions and contribute to technical design decisions.

• Ensure software is secure, maintainable, scalable, and resilient by design.

• Drive continuous improvement of code quality through code reviews, automated testing, refactoring, and engineering best practices.

Production Ownership ("You Build It, You Run It")

• Take ownership of services throughout their entire lifecycle, from development to production operations.

• Monitor application health, investigate incidents, troubleshoot production issues, and lead root cause analysis activities.

• Improve observability, alerting, reliability, and operational resilience of your services.

• Participate in on-call and production support rotations where required.

• Continuously reduce operational overhead through automation and self-healing capabilities.

AI & Engineering Productivity

• Leverage AI-assisted engineering tools to accelerate software development, testing, documentation, troubleshooting, and knowledge discovery.

• Apply critical thinking and engineering judgment when using AI-generated outputs.

• Contribute to responsible AI adoption by ensuring compliance with ING security, privacy, and governance requirements.

• Identify opportunities to automate repetitive activities and improve team productivity through AI-enabled workflows and modern engineering tooling.

Risk, Governance & Resilience

• Ensure adherence to technology governance, risk management, security, DORA, resilience, and compliance requirements.

• Continuously improve engineering controls related to security, operational risk, resiliency, disaster recovery, and service continuity.

• Ensure teams are audit-ready and maintain appropriate documentation and evidence of compliance.

Collaboration

• Collaborate with business stakeholders to understand customer journeys and treasury processes.

• Share knowledge, mentor less experienced engineers, and contribute to a strong engineering culture.

• Participate actively in squad ceremonies, technical communities, and cross-team initiatives.

• Act as a team player, with honesty and openness and foster an environment of mutual trust, accountability and transparency.

Continuous Improvement

• Continuously grow your expertise in software engineering, cloud technologies, integration patterns, DevOps, and financial services.

• Challenge existing solutions and propose improvements that increase system quality, customer value, reliability, or engineering efficiency.

• Contribute to the evolution of engineering standards, development practices, and platform modernization initiatives.

What you’ll bring to the team

• Experience:

  • 8+ years of software engineering in JVM language and related technology stack

• Tech stack/ knowledge:

  • Mandatory:

    • Strong engineering foundation with hands-on experience in Java 21, Spring Boot 4.x and Spring Framework suite, JPA/Hibernate, APIs (REST, gRPC, etc), UI technologies (JavaScript, HTML, CSS, accessibility, security) and UI frameworks (ideally Lit-Html or either of Angular, React, Vue, Svelte)

    • Strong knowledge of enterprise integration patterns and integration middleware (JMS, Kafka)

    • Good knowledge of relational databases (MS SQL Server or Oracle) and ability to fine tune database models and data intensive operations

    • Ability to write clean and maintainable code

    • Good knowledge of source control, CI/CD and documentation tools (Azure DevOps, Git, Maven, Confluence) and ability to define CI/CD pipelines and manage DevOps related activities during software development lifecycle

    • Have a mentality to test your code using various frameworks like Junit, Mockito or BDD testing frameworks like JGiven, Cucumber or Karate)

    • Knowledge of Playwright framework for web testing and automation

    • Knowledge of Docker and Kubernetes using OpenShift as orchestration

    • Knowledge of various communication protocols like HTTP1/2, Messaging, RPCs, etc.

    • Knowledge of Domain Driven Design (DDD) and ability to design systems in this paradigm

    • Familiarity with different architecture patterns (i.e. monolith vs microservices)

    • Strong analytical skills, proactivity, and ability to work in cross-border international teams

    • Excellent Stakeholder Management skills

    • Demonstrates independent thinking and decision-making abilities, with a keen eye on quality

    • Strong interpersonal and written and verbal communication skills

  • Nice to have:

    • Performance testing with tools like JMeter, Gatling

    • Exposing meaningful metrics to have proper monitoring and alerting and ability to perform profiling to better understand the application

    • Familiarity with Elastic stack and how to query logs

    • Experience or affinity with IT Security concepts

    • Experience with other JVM languages or other programming languages like Kotlin

• Foreign languages: English (advanced)

• Education: Completed Education at Bachelor/Master level with a strong analytical background, in Computer Science, Cybernetics, Software Engineering, Financial Engineering or equivalent

If you want to deep dive into the processing of personal data conducted by ING Hubs Romania during the recruitment process and your rights related to it, read the privacy notices on our website (make sure to scroll until you reach the Data Protection section/ Candidates tab).