Senior Full-Stack Software Engineer with OAuth

Endava Technology
Warsaw
Workplace: HybridFull timePLN 19,267+ monthlyFunction: Software EngineeringExperience: 6+ yearsSkills: ["Communication","Collaboration","Autonomy","Ownership","Cross-team influence"]

Build and evolve a reusable authentication and authorization identity platform for shared use across multiple products. You’ll design secure, scalable services and REST APIs, develop .NET back-end components and Angular administration tools, and improve developer experience through SDKs, documentation, and tooling. Working on Azure-based cloud-native infrastructure, CI/CD automation, and automated testing, you’ll help ensure reliability, security, and operational resilience for identity services at scale.

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Endava Technology
Endava Technology
1 day ago

Senior Full-Stack Software Engineer with OAuth

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Source: Company careers pageValidated by: Fursa AI
Last checked: 36 minutes agoStatus: Live

Job Summary

Build and evolve a reusable authentication and authorization identity platform for shared use across multiple products. You’ll design secure, scalable services and REST APIs, develop .NET back-end components and Angular administration tools, and improve developer experience through SDKs, documentation, and tooling. Working on Azure-based cloud-native infrastructure, CI/CD automation, and automated testing, you’ll help ensure reliability, security, and operational resilience for identity services at scale.
Location: Warsaw
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Design, develop, and maintain authentication and authorization services using modern .NET technologies for shared use across products.
  • •Build high-quality .NET APIs, scalable integration services, and Angular-based administration portals for user, group, and permission management.
  • •Evolve Fine-Grained Authorization (FGA) capabilities and centralized access management services to improve security and scalability.
  • •Develop reusable SDKs/libraries and developer tooling (including documentation and integration patterns) to support platform adoption and reduce breaking changes.
  • •Contribute to cloud platform engineering on Microsoft Azure (Azure API Management, Infrastructure as Code, CI/CD pipelines), and participate in testing, peer reviews, and production support/on-call.

Pay and Benefits

Salary: PLN 19,267 monthly
Perks:Health InsuranceDental

Key Requirements

  • •6+ years of commercial software development experience using C# and modern .NET.
  • •Strong experience designing and developing REST APIs and building enterprise/shared platform services.
  • •Strong understanding of object-oriented programming and modern software design principles.
  • •Good understanding of authentication and authorization concepts, including OAuth 2.0, OpenID Connect (OIDC), and JWT.
  • •Experience developing cloud-native applications on Microsoft Azure, including CI/CD and Infrastructure as Code with Terraform or OpenTofu.
Experience:6+ yearsInsuranceIdentity & access managementPlatform engineeringCloud-native
Skills:CommunicationCollaborationAutonomyOwnershipCross-team influence
Languages:English
Tech Stack:C#.NETREST APIsAngularTypeScriptAuth0Fine-Grained Authorization (FGA)OAuth 2.0OpenID Connect (OIDC)JWTAzureAzure API Management (APIM)OpenTofuTerraformAzure DevOpsGitCI/CDInfrastructure as CodeReverse proxyOAuth

Company Brief

Endava Technology
Provides IT services and digital engineering, delivering software development, automation, and consulting to enterprises across financial services, payments, telecommunications, and retail to accelerate digital transformation.
Industry: Consulting
Company Size: Enterprise (1,001+ employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: London, United Kingdom
Founded: 2000
WebsiteLinkedIn