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Senior Data Engineer

Nexo
BulgariaPosted 5 days ago
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Nexo is hiring a Senior Data Engineer in BI — Bulgaria. The overview below is synthesized from the employer posting on nexo.breezy.hr: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.

Driving the next generation of wealth.

Digital assets are redefining how wealth is created, used, and transferred. Since 2018 at Nexo, we have been building the future model of financial wealth - dynamic, accessible, and designed for a new generation of forward-thinking investors.

But technology alone doesn’t drive progress. People do.

We are a team of builders, strategists, analysts, creatives, and operators united by a shared mindset: advancement. We move fast, think long term, and take ownership.

What makes Nexo different?

We shape industry trends. We rethink how wealth works and build solutions that reflect that belief.

That requires a certain kind of person.

You will thrive here when you think independently and act decisively, take ownership without waiting for permission, and care deeply about quality, long-term value, and disciplined execution. The people who succeed at Nexo bring analytical depth, sound judgment, and resilience - but also curiosity and the drive to keep improving.

This is an environment for people who want to lead, create, and elevate what already exists. If building what’s next excites you, you’ll feel at home at Nexo.

Official website: nexo.com

https://nexo.com/https://nexo.com/

Your role:

  • Discover, analyze and assemble large, complex data sets that meet functional / non-functional business requirements.
  • Build ETL pipelines for a wide variety of data sources using (mostly) SQL and Python in an AWS environment.
  • Work with stakeholders including the Executive, Product and Engineering to assist with data-related technical issues and support their data needs.
  • Develop data tools for business departments that assist them in building and optimizing our product into an innovative industry leader.
  • Maintain and optimize existing data models and architecture.
  • Discover and employ meanignful AI-driven optimizations in your day-to-day tasks.
  • Partner with cross-area teams to support self-service data initiatives.

What makes you stand out

  • Strong Experience with relational SQL and NoSQL databases, including Postgres/Redshift, MySql/MariaDB/Aurora and MongoDB.
  • Experience with Python.
  • Experience with AWS cloud services: S3, Athena,Redshift, Glue.
  • Experience building, optimizing and supporting ‘big data’ data pipelines, architectures and data sets.
  • Experience performing root cause analysis on internal and external data and processes to answer specific business questions and identify opportunities for improvement.
  • Build processes supporting data transformation, data structures, metadata, dependency and workload management.
  • Ability to predict and validate performance with 10x, 100x, 1000x larger volumes and manage bottlenecks in advance.
  • Experience supporting and working with cross-functional teams in a dynamic environment.

Nexo benefits:

  • Competitive and rewarding remuneration package.
  • Annual performance-based bonuses.
  • Comprehensive Learning Hub for continuous growth.
  • Hybrid work model: primarily office-based with scheduled home office flexibility.
  • A dynamic and inspiring environment with cutting-edge projects.
  • Career development opportunities in a global leader driving the next generation of wealth.
  • Customizable personal benefits package.
  • Wellness benefits include additional health insurance, all-access sports cards, team-wide sports activities, standing desks, and blue light glasses.
  • Free parking with a designated space, free electric bikes, and public transportation cards.
  • Fresh fruits, snacks, and a well-stocked office kitchen.
  • Regular department team buildings and company-wide team buildings.

Build a standout application

For the Senior Data Engineer at Nexo, reviewers look for concise evidence over buzzwords. Mirror the language of the posting sparingly, quantify support or delivery outcomes, and show how you handled ambiguity, time-zone collaboration and user empathy. Keep your resume to impact, keep your cover note to one page, and link to artifacts — tickets resolved, docs shipped, dashboards owned — that prove you can operate in a fast-moving Web3 team. Prepare to discuss a time you turned a confusing user report into a clear fix and how you measure quality in support and operations.

Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.

In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it.