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Salary
$155k – $221k per year
Location
In office (United States)
Seniority
Senior · 12+ years exp

Confirmed on the employer's own hiring board on Oct 9, 2026. First seen by Alion on Oct 9, 2026.

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Fujitsu is a Japanese information and communications technology company headquartered in Tokyo. It provides IT services, systems integration, cloud and computing products, including high-performance computing.

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 https://www.linkedin.com/company/1finity-inc/. For more information, please visit https://1finity.com/?utm_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

As of the date of this posting, a good faith estimate of the current pay scale for this position is:

$154,669.00 - $220,955.00

Placement in the range depends on several factors such as experience and skills and may change over time. Additionally, this role may be eligible for an annual bonus, which is based on individual

We comply with all applicable minimum wage laws.

Benefits available include:

  • Medical, vision, and dental insurance,

  • Life insurance,

  • Short-term and long-term disability insurance,

  • 401k

  • Paid Time Off

  • Any leave required under federal, state, or local law, as applicable, such as leave under the Colorado Healthy Families and Workplaces Act.

Benefits are subject to vesting and eligibility requirements.

Applications are being accepted on an ongoing basis.

While our experienced team is responsible for selecting and interviewing candidates, 1Finity may use Artificial Intelligence (AI) tools to support the shortlisting, screening, or preliminary evaluation of applications.

At 1Finity, one of our corporate principles is "We respect human rights”. This commitment guides the actions of every1Finity Group member and is fundamental to how we operate, both as individuals and as a company. We are proud to be an equal opportunity employer that values diversity and inclusion. Qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. By empowering people, we can unleash our collective strengths to create a better experience for our employees, our customers, and our partners. California Privacy Act: https://www.fujitsu.com/us/Images/CALIFORNIA-CONSUMER-PRIVACY-ACT-NOTICE.pdf

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