CrawlJobs Logo

Senior Software Engineer (Java) - Authentication Interfaces

Netherlands, Amsterdam · Job Posted January 06, 2026
Apply Position
Job Link Share

Job Description

The Authentication Interfaces team delivers a range of authentication products that provide an additional layer of verification for on-line payments. We own a multitude of authentication mechanisms leveraging a wider range of data and biometrics to deliver an improved, consistent online shopping experience. Authentication ensures seamless journeys, minimizing friction while securing transactions. We enable our merchants to minimize fraud and increase conversion and authorization rates by adding an additional layer of security to confirm a shopper's identity. We help merchants grow their business with improved authorization rates, lower fraud, liability protection, and compliance with local industry regulations. We maintain services of critical importance, processing more than 130 million transactions in an average week at Adyen. Processing at scale is business as usual for us. Our crucial role extends beyond existing methods for securing payments: we are heavily investing in and developing cutting-edge technology, including passkeys for authentication and solutions for agentic commerce.

Job Responsibility

  • Design and build solutions for highly scalable and reliable distributed systems
  • Collaborate closely with your team, product managers, and other engineering teams
  • Take end-to-end ownership, seeing your work through the entire development lifecycle
  • Uphold our high standards for system health by implementing robust monitoring, defining SLOs, and creating effective alerting
  • Collaborate across teams and time zones to make things happen, review code, and be open to giving and receiving feedback

Requirements

  • Strong foundation in Java
  • Experience building web services
  • Experience building REST APIs
  • Experience working with streaming data
  • Comfortable with SQL/PostgreSQL
  • Understand how to work with databases effectively

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior Software Engineer (Java) - Authentication Interfaces

8 matching positions

Junior Software Engineer (Java)

We are looking for a Junior Software Engineer (Java) to join Sopra Steria Polska...
Location
Location
Poland , Katowice
Salary
Salary:
5500.00 - 8500.00 PLN / Month
https://www.soprasteria.com Logo
Sopra Steria
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong proficiency in Java and Spring Boot for backend service development
  • Hands‑on experience with containerization and orchestration tools, specifically Docker and Kubernetes
  • Experience with backend development and API-based integration
  • Good command of secure application integration and service-to-service communication
  • Experience with version control, debugging, testing, and software delivery practices
  • Familiarity with containerized environments and deployment support activities
  • Ability to analyze issues methodically and deliver reliable technical fixes
  • Willingness to learn, document work clearly, and contribute in a team-oriented delivery setting
  • Experience working with REST APIs and API specification formats such as OpenAPI using JSON/YAML
  • Knowledge of authentication and authorization technologies, including Keycloak, OAuth 2.0, and OpenID Connect
Job Responsibility
Job Responsibility
  • Implement backend services, API integrations, and technical adapters under the guidance of senior engineers
  • Configure and integrate identity, authentication, authorization, and connector-related services
  • Develop and maintain integration logic for metadata exchange, catalogue interfacing, and validation flows
  • Support vocabulary-related interoperability, mappings, and configuration tasks
  • Prepare and execute technical tests, including integration tests, deployment verification, and regression checks
  • Investigate incidents, defects, and integration issues in development and test environments
  • Contribute to CI/CD activities, containerised deployments, and runtime support tasks
  • Produce concise technical documentation, configuration notes, and implementation handover material
What we offer
What we offer
  • Luxmed
  • Medicover Sport
  • Worksmile
  • educational platforms
  • languages learning platform
  • referral bonus
  • copyrights
  • life insurance
  • workation
  • certifications (paid by the company)
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

Senior Software Engineer to own and evolve Sammons Financial Group's Core Servic...
Location
Location
United States , West Des Moines
Salary
Salary:
84721.00 - 176501.00 USD / Year
sammonsfinancialgroup.com Logo
Sammons Financial Group
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Deep experience building production microservices with Spring Boot, Spring Data, Spring Security, and Spring MVC
  • strong understanding of REST API design (OpenAPI/Swagger), pagination, filtering, and error handling
  • Hands-on experience deploying and operating containerized services in Kubernetes (AKS preferred)
  • familiarity with Helm charts, KEDA auto-scaling, health probes, namespace strategies, and pod lifecycle management
  • Experience with Azure API Management (APIM), OAuth 2.0/JWT authentication (Okta), subscription-based rate limiting, row-level security patterns, and secrets management (HashiCorp Vault)
  • Azure DevOps pipelines for build, test, and deployment
  • environment promotion strategies (DEV → TEST → STAGE → PROD)
  • automated testing gates (unit, integration, contract, load)
  • Strong familiarity with Snowflake (Hybrid Tables, Dynamic Tables, views, RBAC) and/or SQL
  • understanding of data storage patterns, schema evolution, and data service design for read and write operations
Job Responsibility
Job Responsibility
  • Own and evolve Sammons Financial Group's Core Services platform — a collection of Java Spring Boot microservices and REST APIs that serve as the standardized interface to the Enterprise Information Hub (EIH)
  • Design, build, and steward domain-driven data access APIs (Party, Policy, Activity, Arrangement, Accounts, Pending Business) and data persistence services, ensuring scalability, reliability, security, and operational excellence across all environments
  • Provide technical leadership on complex, cross-domain initiatives, setting patterns that are adopted across teams
What we offer
What we offer
  • Comprehensive health coverage for you and your family, including Medical, Dental, Vision, HSA & FSA options, and term life insurance
  • Competitive compensation with a performance-based incentive program tied to clear goals and individual and/or company success
  • 100% company-funded Employee Stock Ownership Plan (ESOP), plus automatic enrollment in our 401(k)
  • Friday afternoons off year-round, generous paid time off, and paid holidays
  • Paid development time, tuition reimbursement, and professional development opportunities across industry, individual, and leadership programs
  • Volunteer time off, and our company nonprofit matching gift program, supporting the causes that matter most to you
  • Fulltime
Read More
Arrow Right

Software Engineer (Java)

We are looking for a Software Engineer (Java) to join Sopra Steria Polska and su...
Location
Location
Poland , Katowice
Salary
Salary:
8500.00 - 11000.00 PLN / Month
https://www.soprasteria.com Logo
Sopra Steria
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong proficiency in Java and Spring Boot for backend service development
  • Hands‑on experience with containerization and orchestration tools, specifically Docker and Kubernetes
  • Experience with backend development and API-based integration
  • Good command of secure application integration and service-to-service communication
  • Experience with version control, debugging, testing, and software delivery practices
  • Familiarity with containerized environments and deployment support activities
  • Ability to analyze issues methodically and deliver reliable technical fixes
  • Willingness to learn, document work clearly, and contribute in a team-oriented delivery setting
  • Experience working with REST APIs and API specification formats such as OpenAPI using JSON/YAML
  • Knowledge of authentication and authorization technologies, including Keycloak, OAuth 2.0, and OpenID Connect
Job Responsibility
Job Responsibility
  • Implement backend services, API integrations, and technical adapters under the guidance of senior engineers
  • Configure and integrate identity, authentication, authorization, and connector-related services
  • Develop and maintain integration logic for metadata exchange, catalogue interfacing, and validation flows
  • Support vocabulary-related interoperability, mappings, and configuration tasks
  • Prepare and execute technical tests, including integration tests, deployment verification, and regression checks
  • Investigate incidents, defects, and integration issues in development and test environments
  • Contribute to CI/CD activities, containerised deployments, and runtime support tasks
  • Produce concise technical documentation, configuration notes, and implementation handover material
What we offer
What we offer
  • Luxmed
  • Medicover Sport
  • Worksmile
  • educational platforms
  • languages learning platform
  • referral bonus
  • copyrights
  • life insurance
  • workation
  • certifications (paid by the company)
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - M365 Copilot

Come help build the data‑driven services that support and empower Microsoft 365 ...
Location
Location
China , Suzhou
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience
  • Solid experience building distributed systems and service‑oriented architectures
  • Hands‑on experience with data processing pipelines and systems that handle large‑scale data flows
  • Proficiency in C# / ASP.NET or similar backend development frameworks
  • Solid understanding of high‑throughput systems, including performance, reliability, and scalability trade‑offs
  • Experience working with Microsoft Azure fundamentals, including authentication, identity, and core platform services
Job Responsibility
Job Responsibility
  • Design, build, and maintain distributed platform services that support Microsoft 365 Copilot across multiple products
  • Develop cloud‑native microservices using ASP.NET and related technologies
  • Build and optimize high‑throughput processing pipelines that handle large‑scale data ingestion, transformation, and transmission between services
  • Design and operate systems that process large volumes of data with strong guarantees around reliability, consistency, and performance
  • Analyze end‑to‑end service and data flows to understand system behavior, bottlenecks, and failure modes
  • Identify, troubleshoot, and resolve data processing and quality issues in production environments
  • Partner with engineers across teams to define service interfaces, processing contracts, and scalable integration patterns
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

The Identity and Network Access engineering team builds and manages Microsoft’s ...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Microsoft Cloud Background Check
Job Responsibility
Job Responsibility
  • Design and develop large scale distributed software services and solutions
  • System design through well-defined interfaces across multiple components, code reviews, and leveraging data/telemetry to make decisions
  • Develop best-in-class engineering for our services by ensuring that the services and the components are well-defined and modularized, secure, reliable, diagnosable, actively monitored and reusable
  • Improve test coverage for services, organize and implement integration tests, and resolve problem areas
  • Consider testability, portability/monitoring, reliability, maintainability, and understanding when code is ready to be shared and delivered
  • Focus on customer/partner needs through a data driven approach
  • Troubleshoot and optimize automation, reliability and monitoring for Live Site
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

Security represents the most critical priorities for our customers in a world aw...
Location
Location
United States , Redmond
Salary
Salary:
119800.00 - 234700.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript,or Python
  • OR equivalent experience
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • These requirements include, but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
Job Responsibility
Job Responsibility
  • Design and develop large scale distributed software services and solutions with a focus on scalability, performance, and security
  • Drive system design by defining clear interfaces across multiple components, conducting in-depth design and code reviews, and leveraging data/telemetry to guide architectural decisions
  • Establish engineering excellence by ensuring services are modular, secure, reliable, diagnosable, actively monitored, and reusable
  • set standards and mentor others to adopt best practices
  • Lead AI-first initiatives by embedding AI-driven automation and efficiency into engineering workflows and fostering a culture that embraces AI for innovation and operational excellence
  • Lead quality initiatives by improving test coverage, designing robust integration and end-to-end testing strategies, and proactively identifying and resolving complex problem areas
  • Champion operational readiness by considering testability, observability, reliability, maintainability, and ensuring code meets production standards before delivery
  • Own Live Site health by troubleshooting and optimizing automation, reliability, and monitoring
  • drive root cause analysis and implement long-term fixes
  • Mentor and guide engineers by sharing expertise in distributed systems, fostering technical growth, and promoting a culture of innovation and accountability
  • Fulltime
Read More
Arrow Right

Senior Engineer

GEICO is seeking an experienced Senior Engineer with a passion for building high...
Location
Location
United States , Palo Alto, CA; Chevy Chase, MD
Salary
Salary:
105000.00 - 215000.00 USD / Year
geico.com Logo
Geico
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Advanced programming experience with at least two modern languages such as Java, C++, Python or C# including object-oriented design
  • Experience with modern front-end frameworks, likes of React, NodeJs, Angular, including hooks, state management, and component architecture
  • Proven understanding of microservices oriented architecture and extensible REST APIs
  • Experience architecting and designing new and current systems
  • Advanced understanding of DevOps concepts including Azure DevOps framework and tools
  • Advanced PowerShell scripting skills
  • Advanced understanding of security protocols and products: Understanding of Active Directory, Windows Authentication, SAML, OAuth
  • Experience with continuous delivery and infrastructure as code
  • In-depth knowledge of CS data structures and algorithms
  • Knowledge of developer tooling across the software development life cycle (task management, source code, building, deployment, operations, real-time communication)
Job Responsibility
Job Responsibility
  • Scope, design, and build scalable, resilient distributed systems
  • Build product definition and leverage your technical skills to drive towards the right solution
  • Engage in cross-functional collaboration throughout the entire software lifecycle
  • Lead in design sessions and code reviews with peers to elevate the quality of engineering across the organization
  • Define, create, and support reusable application components/patterns from a business and technology perspective
  • Utilize programming languages like JavaScript, TypeScript, React, Node.js, Objective C, C#, Dart, Python, SQL, and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of Azure tools and services
  • Debug application code and troubleshoot interface software
  • Mentor other engineers
  • Consistently share best practices and improve processes within and across teams
What we offer
What we offer
  • Comprehensive Total Rewards program that offers personalized coverage tailor-made for you and your family’s overall well-being
  • Financial benefits including market-competitive compensation
  • a 401K savings plan vested from day one that offers a 6% match
  • performance and recognition-based incentives
  • and tuition assistance
  • Access to additional benefits like mental healthcare as well as fertility and adoption assistance
  • Supports flexibility- We provide workplace flexibility as well as our GEICO Flex program, which offers the ability to work from anywhere in the US for up to four weeks per year
  • Fulltime
Read More
Arrow Right

Software Engineer Intern

Realize your potential by joining the leading performance-driven advertising com...
Location
Location
Hungary , Budapest
Salary
Salary:
Not provided
taboola.com Logo
Taboola
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proficiency in Java or Python
  • Foundational knowledge of SQL
  • Technical level of English language proficiency
  • A proactive approach to learning and adopting new technologies
  • Current enrollment in or recent completion of a Computer Science degree (or equivalent)
  • Strong knowledge of JavaScript, HTML, and CSS
  • Communicative level of English
  • Practical experience or coursework in modern web development
  • A strong drive to learn new frameworks and UI principles
  • Strong mathematical foundations, specifically in matrix algebra and probability theory
Job Responsibility
Job Responsibility
  • Developing and optimizing high-performance recommendation systems
  • Building internal and external dashboards to visualize complex data
  • Creating systems that streamline and facilitate customer integration processes
  • Designing and implementing monitoring systems to ensure platform stability
  • Managing independent projects and collaborating on large-scale team initiatives
  • Fully testing, documenting, and maintaining production-level code
  • Developing web applications that display real-time statistics and analytics
  • Building interactive data editors and user interfaces for internal tools
  • Integrating third-party solutions, such as payment and authentication systems
  • Improving the visual design and usability of internal and external dashboards
What we offer
What we offer
  • Well-being: Enjoy comprehensive benefits (health, etc.), a fully stocked kitchen, and location-specific perks (gym partnerships, parking)
  • Flexibility: We offer a hybrid work schedule with 3 days in-office with an option to come in more often if desired
Read More
Arrow Right