Senior Backend Engineer (Java/Kotlin)

Posted Yesterday
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Budapest, HUN
In-Office
Senior level
Agency • HR Tech • Information Technology • Professional Services
The Role
Build and maintain scalable Kotlin and Spring Boot backend systems; troubleshoot escalated operational issues with support teams; participate in on-call support; uphold engineering and CI standards; contribute architectural input; and mentor junior developers. The role requires Java ecosystem expertise, observability, databases, Kubernetes, cloud, troubleshooting, clean code, and DevOps practices.
Summary Generated by Built In

We’re looking for a Senior Backend Engineer to help us build a scalable, reliable backend that keeps our systems running smoothly and makes our clients’ experience seamless. You’ll work closely with L1 and L2 support teams to tackle tricky issues, contribute to a balanced on-call rotation, and provide clear guidance to keep everything running reliably. Along the way, you’ll set strong engineering standards, mentor growing developers, and be part of a collaborative team that supports each other’s growth - if this sounds like your kind of challenge, we’d love to hear from you.

 

Your day to day will include:

- Supporting the development of a stable and scalable Kotlin and Spring Boot back-end from the ground up

- Collaborate closely with our Customer Support (L1) and Infrastructure Support (L2) teams to efficiently manage escalations- helping identify, troubleshoot, and resolve operational issues that keep our clients running smoothly

- Participate in a rotating on-call schedule to ensure reliable 24/7 client support paired with appropriate compensation for your time and expertise

- Crafting code that adheres to the highest industry standards while ensuring seamless integration with our Cl tools

- Collaborating effectively within a dynamic team environment on exciting, cutting-edge tech initiatives while working closely with fellow engineers and supporting Tech Leads and Architects

- Bringing an architectural perspective to the planning process

- Guiding and mentoring junior developers to support their professional growth


Requirements

- 5+ years of experience in Java ecosystem, familiarity with Java 17, 21

- Deep understanding of Spring Boot

- Experience with an observability platform (Grafana / LGTM or ELK stack or NewRelic)

- Proven ability to troubleshoot under pressure, quickly identify root causes, recommend impactful solutions, and ensure thorough follow-through

- Hands-on experience with SQL or NoSQL databases (Postgres, Redis)

- Experience with Kubernetes

- Familiarity with at least one public cloud provider (preferably AWS)

- Familiarity with IaC, such as Terraform, Helm is a plus

- DevOps mindset of continuous improvement by following processes, sharing knowledge, and learning from feedback

- A strong OOP mindset and a commitment to upholding SOLID principles

- A genuine interest in staying up-to-date with the latest industry trends

- A passion for writing clean, maintainable code, adhering to best practices (if you're a Clean Code/Coder/Architecture fan, you're more than welcome)

- Kotlin experience is a huge plus, as this is our choice of language on the JDK

- At least an intermediate level of English language skills since our team operates internationally



Skills Required

  • 5+ years of experience in the Java ecosystem
  • Familiarity with Java 17 and Java 21
  • Deep understanding of Spring Boot
  • Experience with an observability platform such as Grafana/LGTM, ELK, or New Relic
  • Ability to troubleshoot under pressure, identify root causes, recommend solutions, and follow through
  • Hands-on experience with SQL or NoSQL databases, including PostgreSQL or Redis
  • Experience with Kubernetes
  • Familiarity with at least one public cloud provider, preferably AWS
  • Familiarity with Infrastructure as Code tools such as Terraform or Helm
  • DevOps mindset focused on continuous improvement, knowledge sharing, and feedback
  • Strong object-oriented programming mindset and commitment to SOLID principles
  • Interest in current industry trends
  • Ability to write clean, maintainable code and follow best practices
  • Kotlin experience
  • Intermediate English language skills
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The Company
HQ: Caracas
225 Employees
Year Founded: 2015

What We Do

IDBC Group is a digital recruitment company and an IT & HR services firm, acting as one of Hungary's leading external IT resource providers, specializing in executive search, IT contracting, RPO, and workforce leasing services.

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