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Open nowFirst seen 2 days ago

Senior Backend Engineer - AI Solutions

HRLabs21 open roles

Where
Sofia, Bulgaria
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Your applicationOpen nowSenior Backend Engineer - AI SolutionsHRLabs · Sofia, Bulgaria

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on HRLabs's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: first seen 2 days ago

The posting

HRLabs is excited to present a great opportunity to join a fast-growing global SaaS technology company. Our client develops innovative products used by companies worldwide.

Key Responsibilities:

<> Design and build scalable backend services, APIs and intelligent workflows powering AI-driven products and autonomous agents.

<> Develop robust integrations between core systems, LLMs and communication channels to support real-time automation.

<> Work closely with Product Managers, Architects and AI specialists to transform complex requirements into reliable technical solutions.

<> Participate in code reviews, debugging production issues and continuously improving engineering standards and system architecture.

Your Background:

<> 5+ years of professional experience building cloud-based backend applications.

<> Strong experience with Node.js, Java or .NET.

<> Hands-on experience integrating LLMs or developing AI-powered features in production environments.

<> Strong understanding of API design, distributed systems and real-time data processing.

<> Experience with MongoDB schema design, query optimization and production-grade systems.

<> Deep understanding of software architecture, clean code principles and scalable application design.

Bonus Skills:

<> Experience designing AI agents, tool calling and context management workflows.

<> Familiarity with vector databases and caching strategies for AI applications.

<> Experience mentoring junior developers and leading technical initiatives.

<> Familiarity with agile development practices such as Scrum.

Our Client Offers:

<> Premium health insurance including dental coverage.

<> 25 days annual leave plus additional birthday leave.

<> Hybrid work model.

<> Co-funded sports card and wellbeing benefits.

<> Learning and development opportunities.

<> Regular team events and collaborative company culture.

Join a forward-thinking team and help build scalable software powering modern workplaces worldwide. Apply now!

All documents will be treated in the strictest confidentiality.

Only shortlisted candidates will be invited for an interview.

HRLabs License 3357/13.07.2022

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