UnionFlame

Joined in 2025
13% answers

Who we are?
We are a cybersecurity team from Ukraine which provides professional services for successful
fulfillment of your projects.
Our cohesive team consists of people with technical background and 7+ years experience in cyber
security, penetration testing and IT industry in general.

How can we help you:
- Audit of information systems, penetration tests (Pentest).
- Find vulnerabilities in your Web/Mobile/Desktop applications.
- Detect main problems, vulnerabilities, and issues in your internal infrastructure.
- Identify unknown attack vectors.
- Configuring firewall rules (protection against network attacks).
- Testing for Social engineering attacks
- Give professional recommendations.
- Solving of non-standard cybersecurity tasks
- Incident response (emergency team in case of a cyber attack);

Our experience approved by numer of certificates:
- OSCP (Offensive Security Certified Professional)
- CSXF (Cybersecurity fundamentals certificate)
- Cisco Certified Network Professional (CCNP)
- Cisco CCNA Routing and switching
- Cyberoam Certified Network & Security Professional (CCNSP)
- Master Accredited Systems Engineer (MASE)
- HP Accredited Integration Specialist (AIS)
- HP Accredited Solutions Expert (ASE)
- Cisco Certified Network Professional (CCNP)
- Cisco Certified Network Associate (CCNA).

  • · 222 views · 44 applications · 11d

    Node.js Developer

    Full Remote · Countries of Europe or Ukraine · Product · 3 years of experience · English - B1
    A full-lifecycle tech development company dedicated to delivering innovative solutions for the iGaming and gambling industries. We are building best-in-class applications for the global iGaming market and are looking for a talented Senior Node.js...

    A full-lifecycle tech development company dedicated to delivering innovative solutions for the iGaming and gambling industries.
    We are building best-in-class applications for the global iGaming market and are looking for a talented Senior Node.js Developer to join our team.

    Responsibilities:

    • Design, develop, and maintain scalable back-end services using NestJS
    • Build and optimize microservice architecture and communication between distributed systems
    • Work with PostgreSQL — write performant queries, indexes, views, and materialized views
    • Implement Redis for caching and queueing (BullMQ experience is a plus)
    • Configure and maintain CI/CD pipelines
    • Ensure application security using OAuth and modern client/server security patterns
    • Write clean, readable, and maintainable code

    Requirements:

    • Experience in the iGaming / gambling industry 
    • Understanding of iGaming-specific concepts such as game rounds, RTP, RNG, provider integrations, wallet solutions, and transactional flow
    • Senior-level experience with Node.js (NestJS)
    • Strong knowledge of high-load and real-time processing systems
    • Experience with event-driven architecture and message brokers (Kafka, RabbitMQ, BullMQ)
    • Experience integrating third-party providers and payment systems
    • Deep understanding of transactional flow and microservices architecture

       

    Nice to Have:

    • Familiarity with Heroku, GCP, and Docker
    • Experience with Prisma ORM
    • Understanding of scalability and maintainability principles
    More
Log In or Sign Up to see all posted jobs