Blockchain Engineer

ING Hubs Türkiye; Fatih; On-site; TRY 420,000 - 660,000; Full time

Benefits offered by this job

Welcome Leave 14 days

Flexible hybrid model

Remote August opportunities

Health insurance for you and family

Private Pension Plan

Meal Card

Transportation Allowance

Multisport Membership

Job summary

ING Hubs Türkiye seeks a Blockchain Engineer to design scalable backend services and digital asset workflows. You will bridge traditional banking with blockchain ecosystems, build wallet and custody integrations, and collaborate in a globally distributed team.

The role emphasizes Java excellence, blockchain understanding, and cross-functional collaboration in a hybrid work setting with office presence in Vadistanbul and periodic remote flexibility.

Qualifications

• 5+ years of software engineering, solution design, or architecture experience.
• Bachelor's degree in Computer Engineering or Software Engineering.
• Fluent English communication skills (C1 or above).

Responsibilities

• Design and develop enterprise backend services in Java and related tech.
• Build APIs and microservices for digital asset products and workflows.
• Develop scalable, secure systems aligned with banking standards.
• Contribute to platform integration with custody and wallet providers.
• Participate in architecture reviews, design discussions, and production support.

Skills

Java

Kotlin

Spring Boot

REST APIs

Microservices

Event-driven

Kafka

RabbitMQ

SQL

NoSQL

Docker

Kubernetes

CI/CD

Git

Education

Bachelor's degree in Computer Engineering or Software Engineering

Tools

Docker

Kubernetes

Git

Job description

Design the future architecture of one of Europe's most innovative banking networks while empowering engineers to do their best work.

Role Summary

We are looking for a Blockchain Engineer to join ING's Digital Asset Services (DAS) organization and help build the next generation of digital asset capabilities.

This role combines strong backend engineering expertise with practical knowledge of blockchain technologies. The successful candidate will design and develop scalable services supporting wallet management, digital asset operations, custody workflows, and integrations with external blockchain networks and custody platforms.

The ideal candidate is fundamentally a strong Java engineer who understands blockchain concepts and can bridge traditional banking systems with emerging digital asset ecosystems.

Work Model

At ING Hubs Türkiye, flexibility is more than a benefit—it's part of how we work.

Our hybrid way of working is designed to balance collaboration, innovation, and personal flexibility. Team members typically come together at our Vadistanbul office for two days per week during three weeks of the month, while one week each month is fully remote.

We also provide additional flexibility throughout August with remote working opportunities, allowing colleagues to remain productive while staying connected with their teams.

As part of a globally distributed organization, you'll collaborate with colleagues across multiple ING locations and contribute to solutions used across the bank.

About the Team

You will join an international technology organization where ownership, knowledge sharing, collaboration, and engineering excellence are at the heart of everything we do.

Our teams design and deliver critical technology platforms that support ING's digital transformation journey. We believe scalable architectures, strong engineering practices, automation, and continuous learning are essential for delivering reliable solutions at scale.

About You

Minimum Qualifications

• 5+ years of experience in software engineering, solution design, or architecture roles
• Strong stakeholder management experience across business and technology domains
• Strong analytical and problem-solving capabilities
• Experience working in Agile organizations
• Bachelor's degree in Computer Engineering, Software Engineering, or a related discipline
• Fluent English communication skills (C1 level or above)

Technical Skills

Strong experience in:

• Java (preferred)
• Kotlin
• Spring Boot
• REST APIs
• Microservices Architecture

Experience with:

• Event-driven architectures
• Kafka
• RabbitMQ or similar messaging technologies
• SQL and NoSQL databases
• Containerization (Docker)
• Kubernetes
• CI/CD pipelines
• Git-based development workflows

Good understanding of:

• Distributed systems
• System integration
• API design
• Scalability patterns

Roles and Responsibilities

Backend Engineering

• Design and develop enterprise-grade backend services using Java.
• Build APIs and microservices supporting digital asset products.
• Develop scalable and resilient systems aligned with banking standards.
• Ensure high availability, security, performance, and maintainability.

Blockchain Development

• Implement blockchain-related business logic and workflows.
• Develop components supporting:
• Smart contract interactions
• Minting and burning processes
• Asset transfer flows
• Wallet management capabilities
• Integrate external blockchain networks into ING's digital asset ecosystem.

Platform Integration

• Build integrations with digital asset custody and wallet providers.
• Develop connectivity with blockchain infrastructure and third-party services.
• Collaborate on SaaS blockchain platform implementation initiatives.

Security & Reliability

• Follow secure coding and software engineering best practices.
• Participate in architecture reviews and technical design discussions.
• Contribute to operational readiness and production support activities.
• Support compliance, audit, and security requirements.

Collaboration

• Work within cross-functional agile teams.
• Partner with Architects, DevOps Engineers, Security Specialists, Product Owners, and Blockchain Operations professionals.
• Support technical mentoring and knowledge sharing across engineering teams.

Equal Opportunity

Dont meet every single requirement? Don't let that hold you back. Studies show many talented professionals hesitate to apply unless they meet every qualification. If you're excited about this role and believe you can make an impact, we'd love to hear from you.

What We Offer at ING Hubs Türkiye

At ING Hubs Türkiye, we believe that your work should be fulfilling in every way. We pay attention to even the smallest details to ensure that your experience is rewarding.

Be Yourself, Be an ING'er

• Welcome Leave: Enjoy 14 days of welcome leave, even in your first year
• Self-driven career opportunities
• Challenging projects and continuous learning opportunities
• Flexible hybrid working model
• Remote working opportunities throughout August
• Training budget and Udemy partnership
• Global mobility and international career opportunities
• Comprehensive health insurance for you and your family
• Private Pension Plan
• Meal Card
• Transportation Allowance
• MultiSport Membership
• English Language Development Support
• Innovation culture powered by PACE methodology
• Regular communication activities and celebrations

About ING

With 65,000 employees and operations in approximately 40 countries, there is no shortage of opportunities for people with initiative who want to help people take a step ahead in life and in business.

Do you want to work at the cutting edge of what's possible and at the same time ensure you work with integrity and hold the customer's interests at heart? Do you want to be surrounded by progressive, inspiring, diverse and supportive colleagues?

Then there is no better place to invest your talents than at ING. Join us.