Library Software Experts
SaaS platform development, modernization, and long-term stewardship for public libraries, academic libraries, consortia, and the ILS vendors that support them.
PALADEM designs and modernizes SaaS platforms across the library operational core: catalog and ILS, discovery and OPAC, circulation and resource sharing, digital collections and eResources, and patron-facing portals. Our library software experts build the platforms that cataloging staff, circulation desks, reference librarians, and patrons depend on every open hour, along with the integration layers that tie those platforms to authentication systems, e-resource vendors, consortia, and preservation partners. We treat library systems as public infrastructure that carries patron trust and collection stewardship for decades, not one-time deliverables.
Sub-sectors We Have Worked Across
Each sub-sector has its own workflow conventions, data standards, and integration landscape. Our experience spans the set below, which lets us reuse proven platform primitives while respecting the details that differ from sub-sector to sub-sector.
Integrated Library Systems (ILS)
Cataloging, bibliographic and item records, acquisitions, serials, circulation, and reporting. Our ILS work typically covers the MARC and BIBFRAME-aware data model, the staff-facing cataloging and acquisitions workflows, and the circulation logic that has to stay correct across holds, renewals, and inter-branch transfers.
Discovery & OPAC
Patron-facing catalog search, faceted browse, holdings display, and account self-service. Our discovery work typically covers the search index and relevance tuning, the accessible front-end that meets WCAG and institutional branding, and the connectors that pull holdings, availability, and e-resource results into a single unified result list.
Circulation & Resource Sharing
Checkout, returns, holds, fines and fees, ILL, and consortium borrowing. Our circulation work typically covers the state machine for item and hold lifecycles, NCIP and SIP2 integration for self-check devices and consortial partners, and the resource-sharing flows that let patrons borrow across the network without friction.
Digital Collections & eResources
Digital object ingest, metadata, rights, access control, and long-term storage. Our digital-collections work typically covers the ingest pipeline with checksum verification, the descriptive and administrative metadata model, the access-control layer that honors rights statements and embargoes, and the pluggable storage boundary that accommodates local, cloud, and preservation-partner back ends.
Patron Services & Portals
Account self-service, fines and fees payment, program registration, room reservations, and notifications. Our patron-portal work typically covers the authenticated patron experience, institutional authentication via SAML or Shibboleth, notification routing across email and text, and the accessibility and plain-language standards that public patron-facing surfaces have to meet.
Our Library Software Services
Custom Library SaaS Development
We design and build library SaaS platforms end to end, from initial architecture through production deployment. Our engagements target the long-lived core of the platform: the catalog, circulation, discovery, digital collections, and integration layers that the institution depends on for a decade or more of public service.
Legacy Platform Modernization
Library platforms rarely tolerate a big-bang rewrite. We use incremental modernization to stabilize the existing system, carve the surface area into bounded modules, and migrate module by module behind feature flags, typically starting with read paths (discovery, OPAC, holdings) before write-heavy circulation. Staff and patrons keep working while the platform moves forward.
Integration Architecture
Library platforms live inside an ecosystem of institutional authentication (SAML, Shibboleth, OAuth), EZproxy, KnowledgeBase and e-resource feeds, ONIX and MARC import pipelines, Z39.50 and SRU endpoints, OCLC, and NCIP partners. We design the integration layer so each external system can be swapped or extended without rewriting business logic.
Compliance-Aware Data Design
State library-record confidentiality statutes, ALA privacy principles, FERPA on academic platforms, PCI on fines and fees, and accessibility obligations on all patron-facing surfaces: the compliance landscape is real. We design the data model, access controls, and audit trail to carry compliance obligations by default, which keeps the platform defensible as statutes and standards evolve.
Platform Stewardship & Support
We offer long-term stewardship for production library platforms: dependency upgrades, security patching, performance tuning, incident response, and feature work. Our stewardship engagements are sized to the real surface area of your codebase rather than a fixed retainer that drifts out of alignment with reality.
Options Beyond a Custom Library Platform
Library software is a specialized space dominated by ILS, discovery, and consortium platforms rather than generic productized platforms. Our default path for libraries is custom software built against the ILS stack, but for patron-facing communication we can also bring a productized platform when a library wants to stand up marketing and outreach quickly.
PALADEM Grow for Patron Communications & Program Promotion
PALADEM Grow can give a library system a patron-facing communication layer: program and event promotion funnels, reminder sequences for hold pickups and due dates, new-card acquisition flows, donor and Friends-of-the-Library outreach, and review capture. The platform is a faster on-ramp than standing up a separate marketing stack and runs alongside the existing ILS rather than replacing it.
Custom Software for ILS Integrations, Kiosks & Program Management
Library work is almost always custom because the core systems (ILS, discovery, consortium platforms) are specialized, and the valuable software sits in the gaps around them: patron-facing portals, self-check kiosks, program management and registration, digital-archive tooling, and integration glue between the ILS and downstream services. We design that custom work from the ground up under our Software Stewardship Framework™ so the library's custom surface area is cared for across all eight stewardship pillars rather than bolted on once.
Why PALADEM?
- Built for Libraries’ Long Horizon. Library systems are public infrastructure that carry patron trust and collection stewardship for decades. We design for that horizon, not for the launch demo.
- US-Based Architecture, Global Delivery. Senior US architects lead every engagement, supported by a global engineering team for efficient, cost-effective delivery. See our full services for how we structure engagements.
- Software Stewardship Approach. Every library engagement is guided by our Software Stewardship Framework™, which treats your platform as a long-lived asset to be cared for across all eight stewardship pillars rather than a one-time deliverable.
Related PALADEM Services
Expertise translates into practice through PALADEM’s service lines. These are the most commonly engaged services alongside or instead of expertise-specific work.
Fractional CTO & CIO Leadership
Continuous executive technology leadership for organizations whose technology decisions are starting to have permanent consequences.
Learn moreCustom Web Application Development
Bespoke web applications built and stewarded for the long term by US architecture leadership and a proven global delivery team.
Learn moreSoftware Product Management
Discovery, roadmap, and acceptance discipline that gets the right thing built and shipped on a predictable cadence.
Learn moreAgentic AI Business Automation
Autonomous workflows that reason and act, with the guardrails, checkpoints, and human oversight to keep them safe.
Learn moreUI/UX Design
Interface and experience design grounded in the people who will actually use the system.
Learn moreQA & Testing
Continuous, evidence-based quality validation across automated regression, manual testing, and performance testing.
Learn moreFrequently Asked Questions
What kinds of library platforms has PALADEM built software for?
PALADEM designs and modernizes SaaS platforms across the library operational core: integrated library systems (ILS), discovery and OPAC, circulation and resource sharing, digital collections and eResources, and patron services and portals. Our engagements span public libraries, academic libraries, consortia, and the ILS vendors that support them. The shared thread is long-lived platforms that carry patron trust and collection stewardship.
How do you handle patron privacy on library platforms (state confidentiality statutes, ALA principles)?
Patron privacy is a first-class design concern, not a late-stage checklist. We treat state library-record confidentiality statutes and the American Library Association’s privacy principles as architectural constraints: confidentiality by design, minimized data retention on circulation history, role-based access that keeps staff from seeing patron detail they do not need, and access auditing on any surface that exposes patron data. This work falls under our Security Stewardship pillar and is designed to hold up to records requests and policy review.
Can you integrate with discovery services, e-resource vendors, and authentication systems?
Yes. Library platforms rarely live in isolation. Our integrations typically include SAML, Shibboleth, and OAuth for institutional authentication, EZproxy for off-campus access, KnowledgeBase and e-resource vendor feeds, ONIX and MARC import pipelines, Z39.50 and SRU endpoints, and OCLC and NCIP for resource sharing. We design the integration layer as a pluggable surface so each external system can be swapped or extended without rewriting business logic.
Can you modernize a legacy ILS without disrupting circulation?
Yes. Library platforms cannot tolerate a big-bang cutover because circulation, staff workflows, and patron-facing access depend on the system every open hour. We use incremental modernization: we stabilize what is fragile, carve the surface area into bounded modules, migrate module by module behind feature flags, and start on the read paths (discovery, OPAC, holdings lookups) before moving to the write-heavy circulation paths. The platform stays shippable throughout, consistent with our Engineering Stewardship pillar.
Do you support digital-collection preservation and long-term access?
Yes. Digital collections are a stewardship responsibility that can stretch across decades, so we design with OAIS-informed concepts: defined submission, archival, and dissemination information packages, checksum verification on ingest and on regular audit cycles, fixity reporting, and a pluggable storage layer that can point at local storage, S3 and S3-compatible object stores, or preservation partners such as consortium repositories. The goal is to keep the collection legible and accessible long after any single technology generation.