Software Engineer (Application Integration)

Futurex is seeking talented individuals to perform software integration and development for Futurex's suite of cryptographic modules and application servers. Futurex devices are used as back-end infrastructure for many products and services. This position requires performing integration with 3rd party products and completing any associated development. The integration engineer must debug network or API communication, cross reference standards documents and technical references, interacting directly with third-party application developers as needed.

Our world-class software engineering team is based at Futurex's Engineering Campus in Bulverde, 15 minutes north of San Antonio, Texas. This role offers an opportunity for skilled individuals to expand their talents by participating directly in the development of production software. Individual visibility within the team is high, and opportunities for rapid advancement exist. All levels of Futurex software engineers work directly on production-level code in a fast-paced, results-oriented environment on products with a rapid time to market.


  • Integrate Futurex devices with 3rd party applications, devices, and services
  • Perform product code changes required for integration efforts
  • Develop and document APIs and protocols used when interfacing with external systems
  • Confer with team members to provide understanding of application interfaces
  • Read and comply with published standards and technical documentation


  • A key role in production-level software projects working directly on cutting-edge encryption technology with a fast time to market
  • Competitive compensation and opportunities for advancement
  • Company-provided snacks and drinks
  • Scenic corporate campus with amenities including a tennis court, jogging trail, and putting green
  • Welcoming, family-style corporate culture uniquely suited to fast-paced, entrepreneurial, and motivated individuals


  • Bachelor's degree or higher in computer science or engineering
  • Software development experience in C and C++
  • Motivated, self-starting, and eager to learn
  • Experience working with standards and technical references


  • Experience developing in a Linux environment
  • Experience developing for a Windows environment
  • Ability to read and write Python and Bash scripts
  • Experience with Git version control software
  • Knowledge of cryptography and related standards
  • Experience with some of these common message syntaxes and encodings:
    • Abstract Syntax Notification 1 (ASN.1)
    • Cryptographic Message Syntax (CMS)
    • Extensible Markup Language (XML)
    • JavaScript Object Notation (JSON)
    • Public Key Cryptographic Standard #7 (PKCS #7)
    • X.509
  • Experience with some of these standardized protocols and APIs
    • Java Cryptography Extension (JCE)
    • Key Management Interoperability Protocol (KMIP)
    • Lightweight Directory Access Protocol (LDAP)
    • Microsoft Cryptographic Next Generation (CNG)
    • Online Certificate Status Protocol (OCSP)
    • Public Key Cryptographic Standard #11 (PKCS #11)
    • Simple Certificate Enrollment Protocol (SCEP)
    • Transport Layer Security (TLS)
    • Windows Client Certificate Enrollment (WCCE)

LOCATION: Bulverde, Texas

Why Futurex is one of San Antonio’s Best Places to Work

Futurex Careers

All members of the Futurex team face day-to-day opportunities for growth and advancement. It’s not about having a nine to five job. It’s about building a fulfilling, lifelong career without ceilings.

Futurex Careers
Futurex Employees

The fast-paced corporate culture doesn’t detract from the fact that employees at Futurex are like family. Working at Futurex offers perks that facilitate health, teamwork, and – if you enjoy such opportunities as watching a San Antonio Spurs playoff game from the corporate suite – fun.

Futurex Employees
Nine-Time San Antonio “Best Place to Work”

Futurex has been named one of San Antonio’s Best Places to Work for nine consecutive years; this represents our dedication to providing fulfilling roles and the support to succeed in the fast-growing data security industry.

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Application for Employment

Application Integration Engineer

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