Software Developer Engineer IV

Richardson, Texas, Dallas, Texas, Texas, Austin, Texas, Houston, Texas, San Antonio, Texas

Location Flexibility: Multiple Locations in Country

Req Id: 8945

Posting Start Date: 6/12/26

About 1FINITY
1Finity, a Fujitsu company, is a global provider of communications networks for our connected world. We uniquely combine technological leadership and expertise in open optical and wireless networking, network automation, and applied AI/ML to design, build, operate, and maintain critical digital communications network infrastructure. Collaborating closely with ecosystem partners, we deliver transformative outcomes for service providers and network operators, and enable them to lower TCO, improve network performance, and increase energy efficiency. We're also a diverse, inclusive, and innovative workplace that achieves together. We offer highly competitive compensation, benefits, and career development opportunities, as well as flexible options for working your way. See what working at 1Finity looks like at For more information, please visit _source=li&utm_medium=soc.

Position: SDN applications Principal Engineer/Senior Engineer

JOB DESCRIPTION

What will you do at Fujitsu?

Virtuora Network Controller (VNC) is the platform for a comprehensive, adaptable, highly modular suite of software products that enable you to build and grow a virtualized, programmable network. VNC software utilizes micro services architecture and leverages open source technologies to provide complete suite of SDN controller functionality, i.e. control, planning and design, operations and management, service fulfillment and assurance functions. We are looking for an experienced lead software engineer who is an expert in Java/Scala as well as possess the skills to transform complex requirements in to extendable software architecture/design and data model.

Responsibilities:

• Lead the SDN applications software functions in SDN Topology and Southbound application functions.
• Lead Layer 0 (DWDM), Layer 1 (OTN) and Layer 2 (Packet) SDN application functions on a SDN controller based Network Management System.
• Participate in requirement analysis, design, development and maintenance of multiple software components of SDN controller to meet customer requirements using innovative technologies.
• Participate in the Open ROADM Multi-Source Agreement forum technical discussions and solve complex service modelling and vendor interoperability challenges.
• Participate in Telecommunication/Data Communication domain modelling using standards like ITU-T, ONF, MTNM
• Accountable for as-planned execution and quality of the applications developed.
• Issue investigation, status, and resolution during System Test.
• Interface with, monitor progress and evaluate performance of external SW vendors that provide SW for the Platform.
• Candidates for this job should have very strong technical, analytical, modelling, programming skills and be capable of driving features end-to-end, technically lead the team and handle multiple tasks simultaneously.

Qualifications:

• Minimum of 12 years of Experience in product development of Transport Network management solution - Layer 0 (DWDM), Layer 1 (OTN) and Layer 2 (Packet) technologies
• Expertise in Core Java, Scala, Threads, Collections and Data structures
• Expertise in OOAD, Design patterns, UML modelling
• Hands-on experience with Open Daylight (ODL) and SDN controller development
• Hands-on experience of various communication protocols such as Netconf, TL1 and modelling tools such as Yang, Json, XML
• Good knowledge with databases Oracle/MySQL/Cassandra
• Experience in at least 2-3 full cycle development of Network Management Systems products
• Exposure to Kubernetes, Docker, HDFS, ElasticSearch, Kafka, Spark and distributed big-data systems
• Expertise in designing and developing REST APIs
• Exposure to messaging frameworks like Kafka and Java related frameworks like OSGI, Spring, Blueprint
• Experience in unit test, continuous integration (CI/CD) frameworks such as Junit, Jenkins, postman
• Familiarity with Git, Gerrit, JIRA, Familiar with Agile/Scrum development methodologies.
• Have demonstrated good technical leadership ability, lead end-to-end feature development

Nice to Have:

• Exposure to graph data structures/database, path computation algorithm implementation like dijkstra, yen

1Finity salaries are aligned to the specific geographic location in which the work is primarily performed. It is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the circumstances of each situation. The pay range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to: specific skills, qualifications, experience, and comparison to other employees already in this role. The pay range for this position is estimated at $165,529 to $236,470 USD. Additionally, this role may be eligible for a short-term incentive based on company results and individual performance.

As a technology company, 1Finity recognizes that human resources are its most important capital. To create an environment where all employees can work positively and healthily, both in mind and body, we offer a full range of health, 401K, and other benefits.

#Americas_Priority

Relocation Supported: No

Visa Sponsorship Approved: No