Software Developer Engineer IV

Fujitsu; San Antonio (TX); On-site; USD 165,529 - 236,470; Full time

Job summary

1Finity is seeking a senior engineer to lead SDN applications on a modular VNC platform, focusing on Java/Scala, architecture, and data models for SDN controller functionality. You will drive end-to-end features, mentor the team, and collaborate across interfaces with vendors and industry forums.

The role requires deep experience in transport network management (DWDM/OTN/Packet) and hands-on work with Open Daylight, REST, and microservices.

Qualifications

• 12+ years in transport network management solutions development.
• Expertise in Core Java and Scala with data structures.
• Strong OOAD, design patterns, and UML modelling.
• Hands-on with Open Daylight (ODL) and SDN controller development.
• Experience with Netconf, TL1, Yang/JSON/XML modelling.
• DB knowledge: Oracle/MySQL/Cassandra.
• End-to-end SDN/NMS product development experience.

Responsibilities

• Lead SDN topology and southbound app functions.
• Lead Layer 0/1/2 SDN app functions on a SDN controller Network Management System.
• Participate in requirement analysis, design, development and maintenance of SDN controller components.
• Engage in technical discussions in Open ROADM forums and vendor interoperability challenges.
• Modelling domain using ITU‑T, ONF, MTNM standards.
• Accountable for planned execution and quality of applications.
• Investigate issues during System Test and drive resolutions.
• Coordinate with external SW vendors and monitor performance.
• Lead end‑to‑end features and guide the team.

Skills

Core Java

Scala

OOAD

UML modelling

Open Daylight

NetConf/TL1

Oracle/MySQL

REST APIs

Kafka

Spring

CI/CD

Git Gerrit JIRA

Unit Testing

Agile/Scrum

Kubernetes Docker

Tools

Docker

Kubernetes

HDFS

ElasticSearch

Kafka

Spark

ODL

Job description

Job Location: Richardson, Texas; Dallas, Texas; Austin, Texas; Houston, Texas; San Antonio, Texas. Multiple locations in country.

Position

SDN applications Principal Engineer/Senior Engineer

Job Summary

Virtuora Network Controller (VNC) is a modular suite of software products that enable virtualized, programmable networks using micro‑services architecture and open source technologies. We are looking for an experienced lead software engineer who is an expert in Java/Scala and can transform complex requirements into extendable software architecture, design, and data models for SDN controller functionality.

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.
• Drive features end‑to‑end, technically lead the team and handle multiple tasks simultaneously.

Qualifications

• Minimum 12 years of experience in product development of Transport Network management solutions – 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 with various communication protocols such as Netconf, TL1 and modelling tools such as Yang, Json, XML.
• Good knowledge of databases Oracle/MySQL/Cassandra.
• Experience in at least 2–3 full‑cycle development of Network Management System 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, Agile/Scrum development methodologies.
• Demonstrated technical leadership ability, leading end‑to‑end feature development.

Nice to Have

• Exposure to graph data structures/database, path computation algorithm implementation like Dijkstra, Yen.

Salary & Benefits

Pay range: $165,529 to $236,470 USD. May be eligible for short‑term incentive based on company results and individual performance. Offers full range health benefits, 401K and other benefits. Relocation supported: No. Visa sponsorship approved: No.

EEO Statement

At 1Finity, one of our corporate principles is "We respect human rights". We are 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. California Privacy Act: https://www.fujitsu.com/us/Images/CALIFORNIA-CONSUMER-PRIVACY-ACT-NOTICE.pdf