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< IT-Projekte für Freelancer >< Backend >

EMBEDDED / CRYPTOGRAPHY SPECIALIST
Your next mission: Embedded / Cryptography Specialist
Join a dynamic team within the security and identity sector, where you'll play a pivotal role in developing robust backend solutions. Our client, a leading entity in secure document production, is seeking a highly skilled Backend Developer with expertise in complex system integration and detailed technical challenges to enhance their innovative projects. The team values deep expertise in cryptography and hardware integration, adding unique dimensions to typical backend development.
image backend2 min

YOUR MISSION:

  • In this role, you will work not only as a general backend developer using Java and SpringBoot but also dive deep into specialized areas like cryptography and smart card communication.
  • You'll be responsible for integrating external hardware into Java software using manufacturer SDKs predominantly designed for Windows, but occasionally for Linux.
  • Additionally, you'll tackle other challenges including image processing algorithms and networking with proprietary protocols.
  • Your work will emphasize the importance of secure and efficient backend systems in safeguarding sensitive data.
  • YOUR TECHNICAL EXPERTISE:

  • Java / SpringBoot, REST/SOAP interfaces, SQL databases, RabbitMQ
  • Cryptography and Public Key Infrastructure (PKI)
  • Experience with smart card communications and cryptographic frameworks (e.g., PKI, PKCS#11, JCE)
  • Experience with embedded development (implementing custom network protocols, dealing with device drivers, …)
  • SDK integration, primarily Windows (but also Linux)
  • Familiarity with C# (in addition to Java) and sometimes C/C++ and device driver development for some platform
  • Experience with image processing algorithms
  • Familiarity with binary data encodings (e.g., BER, DER)
  • Networking with proprietary protocols and embedded development
  • YOUR PERSONALITY:

  • Strong analytical skills and problem-solving ability
  • Eagerness to explore complex, technical domains
  • Excellent communication skills with a collaborative mindset
  • Self-motivated with a willingness to take initiative
  • THE FACTS:

  • Project Start: January / February 2026
  • Contract: Freelancer
  • Allocation: Full-time
  • Duration: Long-term engagement
  • Hourly Rate: 75 EUR (depending on experience and skill set)
  • Location: remote with on-site onboarding on first day
  • Project Language: English
  • KONTAKT:

  • Maria Lausch
  • IT Recruitment & Community Management

  • ahoi@opendevs.net
  • hand1
    Komm bei diesem Projekt mit an Bord!
    Du willst wissen wie? Maria beantwortet Deine Fragen gerne in einem schnellen Frage-Antwort-Funkgespräch.
    JETZT ANHEUERN
    hand2
    Schreib uns per WHATSAPP
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