Software Contractor, Java

ASSA ABLOY Opening Solutions

full-time

Posted on: 8/30/2025

Location: 🇬🇧 United Kingdom

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Mid-LevelSenior

CloudGRPCHibernateJavaSwitchingTCP/IP

About the role

Develop and maintain enterprise-scale device management solution for physical access devices (RFID, biometric readers)
Integrate with complex software packages and cloud services
Work as part of the Customer Facing Tools team within PACS business area
Deliver integrations to devices and networked applications
Operate in a multinational environment and communicate in English
Hybrid role based in Cardiff with 2 remote days per week

Experience developing applications using Java
Relational database design experience
Unit testing and integration testing experience
Experience developing networked applications (desirable)
Experience writing integrations to devices (MQTT, Serial, Bluetooth, NFC, UDP, TCP/IP) (desirable)
Experience building REST APIs and WebSocket communication (desirable)
Experience with gRPC (desirable)
Experience with Hibernate ORM (desirable)
Familiarity with Secure Software Development Lifecycle (SSDL) (desirable)
Knowledge of cryptographic algorithms and security certification (advantageous)
Previous experience with RFID technologies / smart cards (e.g. NXP Mifare Desfire) (desirable)
5 years’ professional software development experience
Ability to work with minimal supervision
Communicative English in speaking and writing
Bachelor’s degree in a quantitative field or demonstrative equivalent experience