CORE banking development for integrations, workflows, reporting, and internal tools.

Buildable helps credit unions, community banks, and fintech teams extend the CORE systems they already rely on with secure integrations, APIs, reporting tools, staff workflows, and member-facing digital experiences.

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Who This Is For

Our services are for teams ready to move CORE-connected work forward

We work with financial institutions, fintech partners, and internal technology teams that need experienced help connecting systems, moving data, automating workflows, and shipping practical CORE-connected tools.

Credit unions & community banks

For institutions with CORE-related projects on the roadmap, teams looking for added engineering capacity, or a need for extra hands around integrations, reporting, conversions, automation, or staff tools.

Fintechs & vendors

For product teams that need to connect into financial institution environments, support secure data exchange, integrate with CORE systems, or make implementation easier for bank and credit union clients.

Internal IT & digital teams

For teams that need a practical engineering partner to help build APIs, dashboards, admin tools, member workflows, data pipelines, or custom applications around existing systems.

Definition

What is CORE

A CORE system is the central banking or credit-union platform that supports accounts, transactions, member data, products, operations, reporting, and connected financial workflows. We help teams create secure software around those systems so the institution can add useful capabilities while continuing to rely on the platforms already in place.

CORE Ecosystems

The CORE systems we support

Jack Henry Symitar® Corelation KeyBridge Fiserv CORE FIS Systems CORE Integrations Staff Tools & Portals

Implementation paths vary by platform and institution. We can help plan and ship connected workflows where access and project fit are confirmed.

Extend Your CORE

Your CORE runs the institution. Get more out of it

Financial institutions often have a full roadmap of CORE-connected projects: integrations to complete, reporting and data extracts to improve, member communication workflows to automate, and staff tools and internal platforms to ship. We extend your team with senior engineers who can plan, integrate, and deliver practical software around your existing CORE environment.

We help your team:

  • Add secure integrations between CORE systems and the platforms your team uses every day
  • Improve reporting, data movement, and operational workflows
  • Ship staff-facing tools, portals, dashboards, and approval flows
  • Support conversions, product launches, and enhancement backlogs
  • Bring senior engineering capacity to defined CORE-connected projects

What We Do

Our CORE Development Services

We help credit unions, banks, and fintech teams ship secure, production-ready software around existing CORE environments. Implementation paths vary by platform and institution.

01

CORE Integrations and APIs

We design and develop secure integrations between CORE environments and the systems around them, including CRMs, digital banking tools, internal platforms, analytics layers, vendor systems, and partner applications.

Banking integrations REST APIs Middleware Data workflows
02

Jack Henry Symitar® Development Support

We can support Symitar-related development needs, including PowerOn-style workflows, data movement, reporting, forms, notices, interfaces, and connected applications where access and project fit are confirmed.

Symitar development support PowerOn-style workflows SymXchange Jack Henry Symitar®
03

Corelation and KeyBridge-Connected Work

We can help plan and ship connected workflows, integrations, reporting tools, and operational applications around Corelation and KeyBridge environments.

Corelation KeyBridge CORE-connected workflows Reporting tools
04

Fiserv-Connected Development Support

We can support integration planning, API-led development, data workflows, middleware, and custom applications for teams working in Fiserv-connected environments.

Fiserv integration development Fiserv CORE API-led development
05

FIS-Connected System Integration

We can support integration planning, data workflows, middleware, and custom applications for teams working in FIS-connected environments.

FIS-connected systems Bank CORE integration Data workflows
06

Reporting, Extracts, and Data Workflows

We help institutions surface useful data, automate recurring extracts, improve reporting workflows, and connect operational data to the tools teams use to make decisions.

Reporting and data extracts SQL reporting ETL BI integration
07

Member and Customer Communication Workflows

We can support notices, letters, product updates, account-change communications, and other CORE-connected communication workflows that need reliable data and repeatable execution.

Member communication workflows Notices Letters Product updates
08

Staff Tools and Internal Platforms

We deliver staff-facing applications, dashboards, admin tools, approval flows, and operational platforms that help teams work more effectively around existing systems.

Staff tools and internal platforms Dashboards Approval flows Admin tools
09

Conversion, Migration, and Enhancement Support

We can provide senior engineering help during conversions, mergers, product launches, system changes, and CORE-connected enhancement backlogs.

Conversion support Migration Product launches Enhancement backlogs
10

AI Overlays and Workflow Assistance

Where appropriate, we can add AI-powered search, workflow assistance, knowledge retrieval, document support, or data-connected experiences around existing systems with careful attention to permissions, security, and deployment.

AI-powered search Workflow assistance Knowledge retrieval Document support

We support work across Jack Henry Symitar®, Corelation, Fiserv, FIS, and other CORE environments where access and project fit are confirmed. Platform names are trademarks of their respective owners.

Example Projects

Example CORE-connected projects Buildable can ship

These are the kinds of projects we can support when your team needs experienced engineering help around CORE systems, data, workflows, integrations, and operational tools.

01

CORE API or system integration

Connect a mobile app, digital banking experience, CRM, LOS, data platform, or fintech product to CORE-connected data and workflows.

Common deliverables: Integration plan, API layer/connector, authentication flow, error handling, logging, and handoff docs.

Outcome: Cleaner data movement between systems and fewer disconnected workflows.

02

Jack Henry Symitar®, Corelation, or Fiserv support

Help with CORE-connected programming, configuration, interfaces, batch jobs, custom logic, or system-specific implementation work.

Common deliverables: Scoped work plan, code/config updates, test cases, validation notes, and deployment support.

Outcome: More project velocity without waiting for internal teams to clear every CORE-related request.

03

Reporting and data visibility

Turn CORE-connected data into dashboards, scheduled reports, operational views, leadership reporting, or downstream data feeds.

Common deliverables: Data mapping, reporting logic, dashboard/report buildout, validation checks, and documentation.

Outcome: Better visibility into the business without relying on manual spreadsheet work.

04

Staff workflow or internal tool

Build practical tools that help operations, lending, member service, finance, or support teams work faster around existing systems.

Common deliverables: Role-based web app, admin interface, workflow screens, permissions, audit trail, and user handoff.

Outcome: Staff can complete repeatable work faster with fewer manual steps.

05

Conversion or migration support

Support data mapping, cleanup, validation, reconciliation, cutover planning, or post-conversion operational workflows.

Common deliverables: Data maps, validation scripts, exception reports, QA checklist, and launch/cutover support.

Outcome: Smoother transitions and clearer visibility into what changed, moved, or needs review.

06

Vendor or fintech connection

Help connect a third-party platform into the institution's data, workflows, member experience, or internal operations.

Common deliverables: Integration spec, secure data exchange, environment coordination, QA support, and monitoring plan.

Outcome: Faster implementation and a more reliable handoff between vendors, internal teams, and CORE-connected systems.

Common Deliverables

What you get from our work

Common deliverables

  • Technical discovery and project scoping
  • CORE-connected integration plans
  • API layers, connectors, or secure data exchanges
  • Data mapping and validation logic
  • Reporting dashboards and scheduled reports
  • Staff tools, admin screens, and workflow applications
  • QA plans, test cases, and release support
  • Documentation, handoff notes, and support plans

Common outcomes

  • More engineering capacity around CORE-connected work
  • Faster progress on backlogged projects
  • Better data visibility for teams and leadership
  • Cleaner integrations between vendors and internal systems
  • More efficient staff workflows
  • More reliable reporting and operational tooling
  • Practical modernization without replacing the CORE system
  • A clearer path from idea to production

Common Scenarios

Common reasons to engage Buildable for CORE work

“We have a full roadmap and want additional engineering capacity.”

We help by adding senior engineering capacity for scoped projects, enhancement backlogs, and production-ready delivery.

“We are connecting a new platform to our CORE environment.”

We help by designing integration paths, APIs, middleware, and data workflows that connect systems cleanly.

“We want reliable reports, extracts, or data workflows.”

We help by delivering reliable reporting, data movement, and automation around the systems your institution already uses.

“We are preparing for a conversion, merger, or product launch.”

We help with technical planning, interface work, data workflows, testing support, and implementation execution.

“We are building staff tools, portals, dashboards, or approval workflows.”

We help by delivering custom internal software that fits operational roles, permissions, and real workflow requirements.

“We are a fintech or partner connecting into bank or credit-union environments.”

We help by translating product goals into practical integration plans, secure architecture, and shippable software.

Why Buildable

Decades of experience in CORE-connected work

We have spent more than two decades shipping custom software, integrations, portals, reporting systems, and operational tools for organizations where reliability, security, and workflow fit matter. That experience translates directly to CORE-connected work, where the job is rarely just writing code — it is understanding systems, data movement, permissions, vendor constraints, user workflows, and production support.

Where our experience shows up

  • Translating business workflows into practical technical requirements
  • Connecting modern applications to existing systems and data sources
  • Delivering secure internal tools, admin portals, and reporting interfaces
  • Coordinating with internal teams, vendors, and stakeholders
  • Supporting projects through QA, launch, documentation, and handoff
  • Senior engineers who work through complexity with careful planning
  • Strong product thinking — not just ticket-taking
  • Modern web, API, cloud, data, and AI capabilities
  • Ability to translate between business, operations, and engineering
  • Experience shipping software that improves real workflows

Engineering Experience

Senior engineers with decades of experience working with CORE systems

We bring decades of experience supporting financial institutions with custom software, integrations, workflow systems, portals, reporting tools, and operational platforms. Our team includes senior engineers and people with deep financial-institution backgrounds, covering credit union CORE development, bank CORE integration, and fintech CORE connectivity.

Oregon-Based Team

We are based in Oregon, with a team that specializes in financial institution software development and CORE-connected applications.

Project Scope

CORE projects of all sizes

CORE-connected initiatives can take many forms — a focused integration, report, workflow, notice update, staff tool, or automation, or a larger multi-system effort. Whatever the scope, we plan, scope, and ship work that fits your roadmap and timeline.

  • Focused reporting, notices, extracts, or workflow updates
  • CORE-connected integrations and API work
  • Staff tools, dashboards, and operational applications
  • Conversion, migration, or launch support
  • Ongoing enhancement backlog support

Planning Ranges

Typical planning ranges

$8,000–$15,000

4–6 week project

Focused reporting update, extract, notice workflow, lightweight automation, or technical planning sprint.

$15,000–$35,000

6–8 week project

CORE-connected workflow, integration support, staff tool, dashboard, or data movement project.

$35,000–$60,000+

8–12 week project

Larger integration, multi-system workflow, portal enhancement, conversion support, or implementation package.

These are typical turnarounds. When the scope and timing call for it, we can also run compressed projects in a week or two. Actual scope depends on platform access, vendor coordination, data complexity, testing requirements, and implementation path. Project estimates are scoped after an initial technical conversation.

Engagement Models

We adapt to your workflows

We scale to the way your team already operates — whether that’s a scoped project, a discovery sprint, or ongoing support through a critical initiative.

01

Project-Based Engagement

For defined CORE-connected integrations, workflows, staff tools, portals, reporting systems, and automation projects.

02

Discovery and Architecture Sprint

For teams that want to map the right technical approach before committing to scope, budget, and sequencing.

03

Senior Engineering Augmentation

For institutions that want additional engineering capacity for CORE-connected enhancement backlogs or specialized initiatives.

04

Conversion and Migration Support

For teams coordinating technical work during system changes, data movement, vendor transitions, or product launches.

05

Ongoing Enhancement Support

For institutions that want a reliable engineering partner for recurring improvements around existing CORE systems.

Compliance and Security

We operate in complex, regulated environments

CORE-connected software has to be secure, reliable, maintainable, and aligned with the way real institutions operate. We design with permissions, auditability, deployment, vendor coordination, data handling, and long-term support in mind.

Secure CORE integration planning Role-based permissions Data workflow security Audit-aware architecture Production deployment Vendor coordination CORE-connected middleware Long-term maintainability

Frequently Asked Questions

Common questions about working with Buildable

Do you work with credit unions, banks, and fintechs?

Yes. We support financial institutions directly with CORE banking development, and we also help fintechs build the secure middleware and integrations required to connect their products into real-world CORE environments. We work with credit union CORE development teams, bank CORE integration projects, and fintech CORE connectivity initiatives.

Do you only work on Jack Henry Symitar®?

No. While Jack Henry Symitar® development support is a significant part of our CORE development work, we can also support teams working with Corelation KeyBridge, Fiserv integration development, FIS-connected systems, and other CORE environments where access and project fit are confirmed.

Can you help during a conversion or merger?

Yes. Conversion and merger support is one of the most common reasons institutions bring us in — specifically to add senior engineering capacity during the technical lift for CORE-connected migration work.

Do you provide staff augmentation or only full projects?

Both. We scope full projects when you want a defined outcome, and we can embed engineers when you want to add capacity for CORE-connected enhancement backlogs or specialized initiatives.

Can you build modern applications around existing CORE systems?

Yes — that is the core of what we do. We specialize in extending CORE environments with modern web, API, integration, reporting and data extracts, staff tools and internal platforms, and AI capabilities while continuing to rely on the platforms already in place.

What is the typical budget range for CORE development projects?

Many focused CORE development projects fall in the $8,000–$60,000 range depending on scope, platform access, data complexity, testing needs, and vendor coordination. Larger integrations, portals, member communication workflows, and migrations may require a broader discovery and implementation plan.

Are you compliant with financial institution security requirements?

Yes. We build systems designed for regulated environments, using secure integration planning, role-based permissions, audit-aware architecture, and production deployment practices aligned with financial institution requirements.

Get Started

Ready to discuss your CORE project?

Start with a technical conversation. We’ll help you map the right approach for your institution, your CORE environment, and your project goals.

Move CORE-connected work from backlog to production.

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