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Customer Support Specialist

CUBE AI
Department:Customer Service
Type:REMOTE
Region:EU
Location:Vilnius, Vilniaus, Lithuania
Experience:Entry Level
👁️ Views: 63🚀️ Applied: 4
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Job Description

Posted on: September 29, 2026

About the Job

Monthly salary range: 2,500 - 3,500 EUR gross. To be reviewed based on seniority.


About CUBE AI

CUBE AI is an Agentic Crime Prevention Platform, built at the intersection of agentic AI, cybersecurity, and fraud prevention. We serve the institutions on the front line of an exploding wave of AI-powered crime: banks, fintechs, and the platforms criminals cannot operate without. Our mission is ambitious: make the world a safer place. How we do it is the part we're most excited about, and the part we're happy to walk you through in a conversation rather than on the open internet.

Why this is the seat to take

This is a rare seat on a rocket ship. CUBE AI is early, exceptionally ambitious, and backed by some of the world's leading investors. Our founders have built and scaled startups to unicorn valuations and exits, and have run mega teams at mega companies. We are building the company that puts the institutions the modern economy runs on back on offense against AI-powered crime. The closest analogy is joining Palantir in its early days: a hard mission, a category we're defining rather than entering, and a small group of exceptional people compounding fast. If you want a comfortable role, this isn't it. If you want the defining chapter of your career, your best work alongside people who make you sharper, keep reading.


The role

CUBE AI is looking for a Customer Support Specialist to take over and own our support flow end to end. Our customers are global banks, fintechs, and payment platforms — when something breaks or a question comes in, it lands with you. We're looking for a self-starter to own the full flow, from first-line triage through the technical, escalated issues that need real product understanding to resolve. You'll work closely with Customer Success throughout, since they own the account relationship and need to stay ahead of anything that affects it.

The role won't stay still, and that's by design. Support is the seat where every rough edge in the product and the process shows up first, so beyond resolving cases you'll be expected to improve the workstreams around them: tightening escalation paths, raising the right issues with the product team, identifying recurring problems at the root, and picking up whatever adjacent work the customer experience needs. If you're someone who turns “this is broken” into “here's the fix, and here's how it stops happening again,” this role gives you the room to build the function as you go.


What you'll do

  • Own the full support flow across the customer base, from first-line triage through L2/L3 resolution — including the technical, escalated, and ambiguous issues that don't have a playbook yet.
  • Run the support flow day to day, using Pylon, Slack, and Jira as the tools of the job: triage, prioritization, ownership, and keeping cases moving to resolution.
  • Raise and track issues with the product team when the fix belongs in the product, not in a ticket reply.
  • Spot the process, not just the ticket: identify recurring problems and build the workflow, documentation, or fix that prevents them from coming back.
  • Take on the tangential work that comes with owning a function early — whatever falls between support, product, and customer success is yours to pick up.
  • Build the documentation, runbooks, and internal knowledge base that let the function scale past you.
  • Partner with engineering, product, and customer-facing teams to close the loop on issues end to end.


What we're looking for - the bar (non-negotiable, every role):

  • Real drive and interest in the work and the mission.
  • Strong ability to learn fast and operate with confidence in uncertainty.
  • High IQ and EQ. You raise the level of the room, and you lose an argument gracefully the moment someone's right.


For this role specifically:

  • 2+ years in a technical or L2/L3 support role, ideally at a B2B SaaS, fintech, or infrastructure company.
  • Comfortable owning ambiguous, technical issues without a playbook — you diagnose, you don't just relay.
  • A track record of turning a recurring problem into a fixed process, not just closing tickets faster.
  • Working familiarity with support/ticketing tooling, Slack, and Jira, or the ability to pick up new tools fast.
  • Strong written communication — you can explain a technical issue clearly to both an engineer and a bank's operations team.
  • A genuine appetite to grow the scope of this role over time, including eventually running the support function.
  • Fluent written and spoken English.


How we work and who thrives here

Our core locations are Lithuania, London, and New York, and we consider remote-first candidates who can travel as needed for their role. We write more than we meet and move at warp speed. We're an AI-first company: every person here is amplified by a layer of AI agents, and we scale capability, not headcount. We don't buy services, we buy results. We're drivers, not passengers, so we hire people who go and do it without waiting for permission. We move fast, and we use judgment where it counts: we hold sensitive data and the trust of the institutions we protect, and we never cut corners there. Our culture runs on five virtues:

  • A pedantic bar for quality. Work that is thorough, complete, and on time. We trust each other to deliver, fully.
  • Radical ownership. See it, own it, fix it. Never defer a problem or an opportunity. You will never be reprimanded for taking initiative.
  • Relentless energy and audacity. Building something exceptional demands enormous energy. We move forward with maximum drive.
  • Automate everything. We scale the capability of our people, not the headcount. We always hunt the 10x multiplier, working alongside AI agents rather than piling on processes.
  • Have fun. We work with people we genuinely enjoy. It gets us through the hard stretches and keeps politics out.


What's in it for you

  • Uncapped growth. This seat is designed to grow into Head of Support: in a company moving this fast, scope finds the people who can carry it. Ownership and title are earned in months, not years.
  • Real self-realization. This is a place to become the most capable version of yourself, next to people operating at the top of their game.
  • You share in the outcome. When the company wins big, you win big.


What we offer

Join a rocket ship. Let's discuss compensation and the rest of the details on our call.


CUBE AI is an equal-opportunity employer. We welcome applicants of every background and will support any accommodations you need during the hiring process.

Originally posted on LinkedIn

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👁️ Views: 63🚀️ Applied: 4
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