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Hire Keycloak Developers: Affordable, Dedicated Experts in 72 hours

Hire experts in realms, SSO, MFA, custom themes, and user federation.

Clients rate Flexiple Keycloak developers 4.9 / 5 on average based on 11,808 reviews.

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100+ fast-growing companies love Flexiple!

Team work makes dreamwork. Flexiple helps companies build the best possible team by scouting and identifying the best fit.

“I’ve been pleased with Purab’s performance and work ethics. He is proactive in flagging any issues and communicates well. The time zone difference is huge but he provides a sufficient overlap. He and I work together very well and I appreciate his expertise.”

Paul Cikatricis

UX and Conversion Optimization Lead

“Flexiple has exceeded our expectations with their focus on customer satisfaction! The freelancers are brilliant at what they do and have made an immense impact. Highly recommended :)”

Henning Grimm avatar

Henning Grimm

Founder, Aquaplot

“Overall Flexiple brought in high-level of transparency with extremely quick turnarounds in the hiring process at a significantly lower cost than any alternate options we had considered.”

Kislay Shashwat avatar

Kislay Shashwat

VP Finance, CREO

“Todd and I are impressed with the candidates you've gathered. Thank you for your work so far. Thanks for sticking within our budget and helping us to find strong talent. Have loved Flexiple so far — highly entrepreneurial and autonomous talent.”

William Ross avatar

William Ross

Co-Founder, Reckit

“The cooperation with Christos was excellent. I can only give positive feedback about him. Besides his general coding, the way of writing tests and preparing documentation has enriched our team very much. It is a great added value in every team.”

Moritz Gruber avatar

Moritz Gruber

CTO, Caisy.io

“Flexiple spent a good amount of time understanding our requirements, resulting in accurate recommendations and quick ramp up by developers. We also found them to be much more affordable than other alternatives for the same level of quality.”

Narayan Vyas avatar

Narayan Vyas

Director PM, Plivo Inc

“It's been great working with Flexiple for hiring talented, hardworking folks. We needed a suitable back-end developer and got to know Ankur through Flexiple. We are very happy with his commitment and skills and will be working with Flexiple going forward as well.”

Neil Shah avatar

Neil Shah

Chief of Staff, Prodigal Tech

“Flexiple has been instrumental in helping us grow fast. Their vetting process is top notch and they were able to connect us with quality talent quickly. The team put great emphasis on matching us with folks who were a great fit not only technically but also culturally.”

Tanu V avatar

Tanu V

Founder, Power Router

“Flexiple has exceeded our expectations with their focus on customer satisfaction! The freelancers are brilliant at what they do and have made an immense impact. Highly recommended :)”

Henning Grimm avatar

Henning Grimm

Founder, Aquaplot

“Overall Flexiple brought in high-level of transparency with extremely quick turnarounds in the hiring process at a significantly lower cost than any alternate options we had considered.”

Kislay Shashwat avatar

Kislay Shashwat

VP Finance, CREO

“Todd and I are impressed with the candidates you've gathered. Thank you for your work so far. Thanks for sticking within our budget and helping us to find strong talent. Have loved Flexiple so far — highly entrepreneurial and autonomous talent.”

William Ross avatar

William Ross

Co-Founder, Reckit

“The cooperation with Christos was excellent. I can only give positive feedback about him. Besides his general coding, the way of writing tests and preparing documentation has enriched our team very much. It is a great added value in every team.”

Moritz Gruber avatar

Moritz Gruber

CTO, Caisy.io

“Flexiple spent a good amount of time understanding our requirements, resulting in accurate recommendations and quick ramp up by developers. We also found them to be much more affordable than other alternatives for the same level of quality.”

Narayan Vyas avatar

Narayan Vyas

Director PM, Plivo Inc

“It's been great working with Flexiple for hiring talented, hardworking folks. We needed a suitable back-end developer and got to know Ankur through Flexiple. We are very happy with his commitment and skills and will be working with Flexiple going forward as well.”

Neil Shah avatar

Neil Shah

Chief of Staff, Prodigal Tech

“Flexiple has been instrumental in helping us grow fast. Their vetting process is top notch and they were able to connect us with quality talent quickly. The team put great emphasis on matching us with folks who were a great fit not only technically but also culturally.”

Tanu V avatar

Tanu V

Founder, Power Router

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Frequently Asked Questions

View all FAQs

What is Flexiple's process?

Our process is fairly straightforward. We understand your requirements in detail and recommend freelancers per your specific needs. You can interview the freelancers we recommend though they are already vetted by us rigorously. Once you like someone and decide to work with them, we draw up a tripartite agreement. You work directly with the freelancer, just the invoicing is done by Flexiple.

Is there a project manager assigned to manage the resources?

Our core strength is with freelance developers and designers. Though we do have senior engineers who can work as tech leads, project managers are not part of our offering.

What is Flexiple's model?

We typically work on an hourly model of upwards of US$30 per hour. For full-time longer term engagements, we can also work on a monthly model of upwards of US$5000 per month.The rates vary depending on the skill sets, experience level and location of the freelancer.

What are the payment terms?

- In the hourly model, the invoice is raised weekly/ fortnightly and is payable within 3 days of receipt of invoice.
- In the monthly model, the invoice is raised monthly and is payable within 7 days of receipt of invoice.

Are there any extras charges?

The hourly/ monthly rate shared is all-inclusive. No additional charges other than taxes are applicable.

How does Flexiple match you with the right freelancer?

Based on your requirements, we look for suitable freelancers based on:
- Tech fit: Proficiency in the tech stack you need, Recent work on stack, Work in a similar role
- Culture fit: Worked in similar team structure, Understanding of your company's industry, product stage.

How to Hire the Best Keycloak Developers

Keycloak developers specialize in implementing enterprise-grade identity and access management using the Keycloak open‐source platform. Expert Keycloak professionals bring deep knowledge of OAuth2, OpenID Connect, SAML, and RBAC to deliver secure, scalable single sign‐on (SSO) and user federation solutions. By hiring vetted Keycloak developers—freelance, contract, or full‐time—you accelerate secure authentication deployments, reduce custom coding, and align your IAM architecture with industry best practices.

Introduction to Keycloak Development

Keycloak is a modern IAM solution offering SSO, user federation, social login, and fine‐grained authorization. A proficient Keycloak developer typically:

  • Installs & Configures: Deploys Keycloak on standalone or clustered environments.
  • Customizes Themes: Designs login/registration flows and email templates.
  • Integrates Clients: Secures microservices and web/mobile apps via adapters for Java, Node.js, and other stacks.
  • Sets Up Federation: Connects to LDAP/Active Directory and external IdPs (SAML, OIDC).
  • Implements Authorization: Defines roles, groups, and fine‐grained policies with Keycloak’s authorization services.

Why Keycloak Development Matters

  • Open Source & Free: Enterprise features without licensing costs.
  • Standard Protocols: Built‐in support for OAuth2, OIDC, and SAML ensures interoperability.
  • Scalability: Clusterable architecture and stateless adapters handle high‐volume traffic.
  • Extensibility: SPI allows custom providers for authentication, user storage, and events.
  • Centralized IAM: Single point for user management, social login, and federation.

Essential Tools and Technologies

  • Keycloak Server: Latest LTS version deployed on Docker, Kubernetes, or standalone.
  • Client Adapters: Java (WildFly/Spring), Node.js, Python, and JavaScript libraries.
  • Theme Development: FreeMarker, HTML, CSS, and JavaScript for customizing UI.
  • Federation Connectors: LDAP/AD integration and SAML/OIDC identity brokering.
  • Authorization Services: Keycloak policy enforcer and custom SPI modules.
  • DevOps & CI/CD: Helm charts, Ansible playbooks, and Jenkins/GitLab pipelines.
  • Monitoring: Prometheus exporters, Grafana dashboards, and Keycloak logs.
  • Testing: Postman, Newman, and automated integration tests for authentication flows.

Key Skills to Look for When Hiring Keycloak Developers

  • Protocol Mastery: OAuth2, OpenID Connect, SAML 2.0 experience.
  • Server Configuration: Installing, clustering, and securing Keycloak instances.
  • Adapter Integration: Securing microservices and web/mobile clients.
  • Federation & Federation: LDAP/AD and external IdP integration.
  • Customization: Theme development and SPI extension coding.
  • Authorization: Building role‐based and attribute‐based access control policies.
  • DevOps Skills: Infrastructure as code, Docker, Helm, and CI/CD pipelines.
  • Soft Skills: Clear documentation, collaboration with security teams, and agile practices.

Crafting an Effective Job Description

Job Title: Keycloak Developer, IAM Engineer

Role Summary: Design, deploy, and maintain Keycloak for authentication, SSO, and authorization; integrate with applications; and extend platform via themes and SPIs.

Required Skills: Keycloak server, OAuth2/OIDC, SAML, LDAP/AD federation, adapters for Java/Node.js, theme and SPI development.

Soft Skills: Security mindset, strong communication, and collaborative problem‐solving.

Key Responsibilities

  • Server Deployment: Install and configure Keycloak in dev, staging, and production clusters.
  • Client Integration: Secure applications using Keycloak adapters and token validation.
  • User Federation: Connect to LDAP/AD and configure identity brokering.
  • UI Customization: Develop custom login flows, account pages, and email templates.
  • Authorization Policies: Define roles, groups, and fine‐grained permissions.
  • Monitoring & Maintenance: Set up metrics, backups, and automate upgrades.

Required Skills and Qualifications

  • IAM Protocols: Comprehensive knowledge of OAuth2, OIDC, and SAML.
  • Keycloak Administration: Experience with server configuration, clustering, and high availability.
  • Integration Experience: Securing REST APIs and web applications via adapters.
  • Customization: Theme development and SPI extension coding in Java.
  • DevOps: Container orchestration, Helm charts, CI/CD pipelines.
  • Soft Skills: Detailed documentation and stakeholder communication.

Preferred Qualifications

  • Certifications: Red Hat SSO or Keycloak solution certifications.
  • Cloud IAM: Experience with Keycloak on AWS, Azure, or GCP marketplaces.
  • No-Risk Trial: Prototype a basic SSO integration or theme customization.

Work Environment & Compensation

Specify remote, hybrid, or on-site work options; competitive salary or contract rates; benefits such as training budgets and certification reimbursement.

Application Process

Outline steps: resume screening, technical assessment (SSO integration exercise), design interview on IAM architecture, and culture-fit discussion.

Challenges in Hiring Keycloak Developers

  • Platform Breadth: Balancing deep Keycloak expertise with general IAM knowledge.
  • Customization Depth: Validating ability to extend Keycloak via SPIs.
  • Integration Complexity: Ensuring experience across multiple client stacks and federation sources.

Interview Questions to Evaluate Keycloak Developers

  • How do you configure Keycloak for high availability and clustering?
  • Describe integrating a Spring Boot microservice using Keycloak adapters.
  • Explain creating a custom authenticator via SPI.
  • What steps do you take to secure Keycloak admin console and user endpoints?
  • How do you set up LDAP user federation and group mappings?

Best Practices for Onboarding Keycloak Developers

  • Provide Sandbox Realm: Share a dev Keycloak instance with sample realms and clients.
  • Pilot Task: Assign configuring a new client with SSO and custom login theme.
  • Document Standards: Share realm naming conventions, client policies, and SPI guidelines.
  • Mentorship: Pair with a senior security architect for initial code and config reviews.
  • Regular Demos: Weekly showcases of integration features and security audit results.

Why Partner with Flexiple

  • Vetted Experts: Access top Keycloak developers with proven IAM experience.
  • Flexible Engagement: Hire freelance, contract, or full-time talent with a no-risk trial.
  • Rapid Onboarding: Quickly integrate experts into your DevOps and security workflows.
  • Dedicated Support: Leverage project managers for seamless coordination.
  • Global Talent Pool: Tap into diverse IAM specialists across time zones.

Keycloak Development: Parting Thoughts

Keycloak simplifies complex identity and access management, but success depends on developers who understand protocols, server architecture, and customization. By following a structured hiring and onboarding process—and partnering with Flexiple—you’ll secure top Keycloak talent to deliver secure, scalable IAM solutions that protect your users and accelerate your digital initiatives from day one.

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