Senior Software Engineer - SimKit @ING Hubs Romania

REQ-10109854
23/02/2026
IT Engineering
Bucarest, Romania
Cluj-Napoca, Romania
CLUJ-NAPOCA
ING Hubs

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 two locations: Bucharest and Cluj-Napoca.

Our tech capabilities remain the core of our business, with more than 1800 colleagues active in Data and Analytics Tech, Tech Foundation and Channels, Retail Core Banking and Architecture, and Global Products and Technology Services.

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

You'll contribute to SimKit, ING's 1ES Simulation Toolkit — a Go-based CLI tool that enables developers to run, test, and debug their applications in a production-like ING Scalable Tech environment without requiring deployments. The CLI orchestrates Docker containers to set up the environment.

We are currently looking for an experienced developer for our SimKit Squad. The squad consists of 8 engineers and a PO, mixed located in Amsterdam & Cluj.

Your day-to-day

Deliver high quality features on SimKit that enable other teams to deliver their APIs better and faster;
Support users of SimKit when they have technical questions or experience issues;
Coach more junior developers in creating better applications.

What you bring to the team

10+ years experience as a Software Engineer;
Go or similar systems language: Experience with Go, Rust, or C-family languages; more importantly a polyglot mindset and eagerness to learn Go if not already proficient;
Docker & Docker Compose: Experience building container images and orchestrating local development environments;
CI/CD: Experience with build pipelines (GitHub Actions, Azure DevOps or similar);
Testing: Strong testing discipline — unit tests, integration tests, and mocking strategies;
Nice to have: JVM ecosystem knowledge (running/troubleshooting, JVM flags, memory tuning), service mesh concepts, Pact contract testing, or experience with ING's Merak platform. CLI development;
Familiarity with building developer-facing command-line tools; comfortable in shell environments.

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).

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