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Vonage

Software Engineer III

Vonage

. Develop and maintain highly concurrent and distributed backend services .

Posted 10/23/2026full-timeWroclaw • PolandMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and maintaining highly concurrent and distributed backend services, with strong programming skills in Go or JVM technologies. Proficient in system performance optimization, architectural decision-making, and effective communication within teams.

Highest-signal resume keywords
Go (Golang) ProgrammingJava/Spring Boot ExperienceDistributed Architecture ExperienceREST/HTTP Based Services DevelopmentRelational and Non-Relational Databases

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Concurrent ProgrammingSystem Performance OptimizationTest Suite DesignUnit TestingIntegration TestingSmoke TestingContainerized ApplicationsEnterprise-Grade Systems DevelopmentEffort EstimationCoding Standards Contribution
Soft Skills
Effective CommunicationProblem-Solving
Tools & Technologies
AWS ServicesPostgreSQLRedisKafkaKubernetesTerraform
Industry Keywords
Telecommunications IndustryContinuous Delivery

Tech Stack

Tools & technologies
AWSCloudDynamoDBJavaKafkaKubernetesPostgresRedisSpringSpring BootSpringBootTerraformGo

About the role

Key responsibilities & impact
  • Develop and maintain highly concurrent and distributed backend services
  • Contribute to architectural discussions and help shape technical decisions within the team
  • Design, develop and test new features with a strong focus on quality and reliability
  • Profile and optimise system performance, diagnosing and resolving issues proactively
  • Support the release and documentation of developed features
  • Estimate effort required to develop and implement solutions
  • Contribute to coding standards and development processes
  • Provide out-of-hours support as part of an on-call rota

Requirements

What you’ll need
  • Solid programming skills in Go (Golang) or strong experience with JVM technologies (Java/Spring Boot) and a genuine desire to learn Go
  • Experience developing and maintaining enterprise-grade systems at scale
  • Experience with highly concurrent, distributed architectures and systems
  • Experience with containerised applications
  • Experience building REST/HTTP based services
  • Experience with relational and non-relational databases (e.g. PostgreSQL, Redis)
  • Some experience contributing to architectural decisions within a team
  • Strong test suite design skills, including Unit, Integration and Smoke tests
  • Clear and effective communication of problems and solutions across team members
  • Nice to have: Familiarity with AWS services (SQS, SNS, DynamoDB)
  • Nice to have: Exposure to Kafka, Kubernetes or Terraform
  • Nice to have: Understanding of Continuous Delivery in cloud environments
  • Nice to have: General understanding of the telecommunications industry

Benefits

Comp & perks
  • Medical Insurance (Allianz)
  • Life Insurance (Uniqa)
  • Glasses Reimbursement
  • Kafeteria (My Benefit)
  • Discretionary Time Off (DTO)
  • Volunteer Time (VTO)
  • Ericsson Care Line