IT Labs

Senior Backend Engineer

Bulgaria, Greece full-time Senior Salary not listed
full-time Senior level Technology & IT Curated
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About the role

At IT Labs, we work with premier global consulting organizations to help Tier 1 banks and insurance companies transform operations through AI, automation, and advanced analytics, with a special focus on Anti-Financial Crime. Our client's expertise includes AI-driven fraud prevention, Anti-Money Laundering (AML), and Know Your Customer (KYC) solutions—designing and implementing intelligent systems that enhance detection, automate investigations and due diligence, boost efficiency, and help institutions stay ahead of regulatory change.
You’ll work at the intersection of business transformation, data science, AI engineering, cloud technologies, and financial services, tackling complex challenges with innovative technology for banking and insurance clients across Europe.
Help enable leading consulting organizations to deliver advanced solutions to top global banks and insurers—as they use AI to safeguard millions of customers and vast financial assets. If building intelligent, secure and scalable systems that shape the future of enterprise AI excites you, we want you on our team.
Responsibilities

Design and build highly scalable, resilient, and secure microservices, as well as RESTful/GraphQL APIs

Integrate business databases, third-party services, and legacy platforms with advanced AI engines

Optimize backend service latency and resource allocation for real-time AI model hosting and inference

Implement enterprise-grade authentication, role-based access control (RBAC), and rate-limiting protocols

Establish and uphold coding standards, write comprehensive integration tests, and conduct code reviews

Partner with AI engineers to deploy model weights/microservices within unified Docker environments

Integrate applications with cloud-hosted services and APIs (AWS/Azure experience strongly preferred)

Required Skills & Experience

5–10 years of experience in backend/platform engineering

Strong proficiency with Node.js

Experience with Python is a plus

Expertise in building scalable, resilient, and secure cloud applications (AWS required; Azure a plus)

Experience designing/implementing authentication, RBAC, and security best practices

Hands-on experience with Git, CI/CD pipelines, and automated testing

Prior engagement in large-scale enterprise environments and mission-critical systems

Excellent communication skills in English

Candidate must be located in an EU member country

Nice to Have
Experience in fintech or financial services

Working Conditions

Full-time (40 hours/week)

Individual Contract or B2B arrangement

Paid Time Off (PTO) provided

Remote

Our values
We are a company that seeks the best for both our employees and clients, reaching beyond expectations in turning dreams into reality. Our way of working is rooted in our core values (Integrity, Excellence, Proactivity, Innovation, and People), with an expectation that our future colleagues will make these their second nature in their everyday work and life. We don’t ask for perfection, but we do appreciate people motivated to better themselves in every conceivable aspect.
About IT Labs

Founded in 2005, IT Labs is an international software tech company, specializing in purpose and process-driven teams for high-performance, innovation, transformation, and efficiency. Our HQ is in Palm Beach Gardens, Florida, and we have teams around the world - the UK, the Netherlands, Brazil, Argentina, Serbia, Croatia, BIH, Montenegro, North Macedonia, and the Middle East. We are constantly growing, and we would love for you to become part of our team!
Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT API integration Data Analysis Javascript Operations Python Senior level

Likely questions

  1. Tell us about work you have done that is close to the Senior Backend Engineer role.
  2. How would you approach your first 30 days at IT Labs?
  3. Which of API integration, Data Analysis and Javascript have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Data Analysis and Javascript.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Senior Backend Engineer role because I can bring practical experience in API integration, Data Analysis and Javascript, learn the team quickly, and contribute to the outcomes IT Labs needs from this hire.

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