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GovTech Software Development Services for US Federal/State and EU Public Sector

YuSMP Group builds GovTech for US federal and state agencies and EU public-sector buyers. We engineer citizen-facing portals, case management and permitting systems, tax and benefits platforms, procurement and e-tendering, open data APIs and identity and access infrastructure. Delivery aligns with FedRAMP, FISMA, StateRAMP and NIST 800-53 in the US, and NIS2, DORA, GDPR and eIDAS in the EU. Section 508 and WCAG 2.2 AA are non-negotiable from day one.

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Government software team working on public sector digital services platform

Our GovTech practice serves three buyer profiles: US federal and state agencies digitizing citizen services and benefits delivery; EU national and municipal authorities running e-government portals under eIDAS and GDPR; and GovTech vendors building products on AWS GovCloud, Azure Government and EU sovereign clouds. We engineer to FedRAMP Moderate and High, FISMA, StateRAMP, NIST 800-53 and NIST 800-171 baselines in the US. EU work runs under NIS2, GDPR, eIDAS notified eID schemes, the EU AI Act and DORA where financial services overlap. Section 508 and WCAG 2.2 AA accessibility are baseline. Explore how we deliver this through our Enterprise Software Development service.

Challenges we solve

Public-sector challenges we solve

Legacy systems slowing agencies down

Mainframe and COBOL back ends, brittle point-to-point integrations and paper-era workflows. We modernise incrementally behind APIs so services stay live during the transition — see our software modernization approach.

Accessibility is mandatory, not optional

Section 508 and WCAG 2.2 AA are legal requirements, not nice-to-haves. We gate conformance in CI and ship an updated ACR/VPAT each release instead of retrofitting accessibility at the end.

Authorization timelines and audit pressure

FedRAMP, FISMA and StateRAMP authorizations stall projects when teams learn compliance mid-build. Our engineers write the SSP and collect control evidence from day one to protect the ATO timeline.

Procurement and fiscal-year constraints

Fixed scopes, congressional and parliamentary change windows and fiscal-year budgets. We deliver in agency-controlled environments and align release trains with the calendar you actually operate on.

Fragmented, hard-to-use citizen services

Siloed portals and duplicate data entry frustrate residents and staff. We apply service design and a shared identity layer so a single journey can span multiple agencies.

Data residency and sovereign hosting

Public data often cannot leave a jurisdiction. We deploy to AWS GovCloud, Azure Government and EU sovereign regions with the residency and continuous-monitoring controls each mandate requires.

What we build

What we build for the public sector

Citizen-facing portals

Service-design-led portals with plain language, multilingual content and full Section 508 / WCAG 2.2 AA conformance.

Case management & permitting

Permits, licenses, inspections and appeals workflows with auditable decisions and FOIA-ready records.

Tax & benefits platforms

Eligibility, assessment, disbursement and overpayment recovery with explainable rules and audit traceability.

Procurement & e-tendering

SAM.gov and TED-aligned tendering, bid evaluation, contract award and supplier portals.

Open data APIs

CKAN-based catalogs, DCAT-AP metadata, rate-limited APIs and bulk downloads aligned with open-data policies.

Identity & access

Login.gov and ID.me for US, eIDAS notified eID and the EU Digital Identity Wallet for EU portals.

Tech stack

Technology stack for public-sector platforms

We standardise on a boring-by-design, well-supported stack so agency-critical software stays maintainable and auditable for a decade — not an exotic tech demo the next contractor cannot operate or authorize.

Backend & APIs

Java/Spring and .NET for agency line-of-business systems, Python (FastAPI/Django) and Node.js/TypeScript for services and integration layers. REST and GraphQL over an anti-corruption layer in front of mainframe and COBOL/DB2 back ends, with NIEM as the canonical exchange model — built by our custom software development teams.

Frontend & accessibility

React and Next.js with TypeScript on the U.S. Web Design System (USWDS) and GOV.UK-style patterns. WCAG 2.2 AA gated in CI with axe-core and Pa11y plus manual assistive-technology testing, and plain-language, multilingual content from the first sprint.

Data, search & records

PostgreSQL/PostGIS for case and geospatial data, Elasticsearch/OpenSearch for FOIA-scale search, CKAN and Socrata for open-data catalogs with DCAT-AP metadata, and Apache Kafka for cross-agency data sharing and audit trails.

Cloud & sovereign hosting

AWS GovCloud (US) and Azure Government for federal and state workloads, plus EU sovereign regions (OVHcloud, T-Systems Open Telekom, AWS Frankfurt). Kubernetes, Terraform and GitOps on FedRAMP- and eIDAS-aligned baselines — run by our cloud & DevOps practice.

Identity & security

Login.gov (IAL2/AAL2), ID.me, eIDAS-notified eID and the EU Digital Identity Wallet; OpenID Connect and SAML for single sign-on; HSM-backed key management, zero-trust networking and NIST 800-53 controls wired into the pipeline, not bolted on.

AI & automation

Document classification, benefits-eligibility assistants and RAG over public records with Python ML tooling and MLOps — classified against EU AI Act risk tiers, with model lineage and post-market monitoring kept audit-ready by our AI, ML & data team.

Interoperability

Systems and data we integrate

Public-sector platforms rarely run alone — they sit on top of identity providers, payment gateways, geospatial data, records systems and decades-old back ends. We treat interoperability as a first-class requirement and build to open standards so agencies avoid vendor lock-in.

Identity & access

Login.gov (IAL2 / AAL2) and ID.me for US agencies; eIDAS-notified eID schemes and the EU Digital Identity Wallet for EU portals; SAML and OpenID Connect for internal single sign-on.

Payments & disbursement

Pay.gov and card / ACH acquiring for fees and fines; benefit disbursement and reconciliation; SEPA and national payment rails for EU public-sector collections.

Geospatial & GIS

Esri ArcGIS and open OGC services (WMS / WFS / WMTS), INSPIRE-compliant EU spatial data, and parcel, permit and asset mapping.

Records, content & FOIA

Enterprise content and records management, retention schedules, e-signature, and FOIA / EU Re-Use Directive-ready disclosure and redaction workflows.

Legacy & line-of-business

Mainframe, COBOL / DB2 and legacy line-of-business systems wrapped behind REST / GraphQL APIs and an anti-corruption layer, plus tax, permitting and ERP back ends.

Open data & notifications

CKAN and Socrata catalogs with DCAT-AP metadata, plus email, SMS and mass-notification channels for citizen alerts and status updates.

Delivered through our custom software development and cloud & DevOps teams.

Compliance

Regulations and standards we engineer to

FedRAMP Moderate / High · FISMA · StateRAMP · NIST SP 800-53 · NIST SP 800-171 · CMMC (where required) · Section 508 ICT Refresh · WCAG 2.2 AA · GDPR · eIDAS · EU Digital Identity Wallet · EU AI Act · NIS2 · DORA (where applicable) · ISO 27001 · SOC 2 Type II · FOIA / EU Re-Use Directive · DCAT-AP open-data metadata.

We treat these as a vertical requirement baked into delivery, not a bolt-on. For the deep how-to on specific regimes we run dedicated practices — EU AI Act compliance for high-risk public-sector AI, GDPR compliance consulting for citizen-data programmes, and penetration testing & security audits ahead of an authority-to-operate review.

Process

How we deliver

1. Discovery

Service map, citizen journey, authority-to-operate boundary and accessibility baseline. Fixed-scope, two-week diagnosis.

2. Architecture

FedRAMP or eIDAS-aligned target, control inheritance map, SSP scaffolding and threat model signed off by agency CISO.

3. Build

Two-week increments in agency-controlled environments, accessibility regression suite in CI, evidence collection from day one.

4. Run

SRE coverage in GovCloud or sovereign EU regions, continuous monitoring, POA&M tracking and quarterly access reviews.

Why YuSMP

Why public-sector teams choose YuSMP

Authority-to-operate fluent

Engineers who can read NIST 800-53 and write the SSP — not learn FedRAMP on your authorization timeline.

Accessibility as baseline

Section 508 and WCAG 2.2 AA are gated in CI. ACR/VPAT updates per release, not at end of project.

Sovereign-region capable

AWS GovCloud, Azure Government, OVHcloud, T-Systems Open Telekom and AWS Frankfurt sovereign deployments.

FedRAMP-aware · FISMA · StateRAMP · NIST 800-53 · GDPR · eIDAS · ISO 27001 ready · SOC 2 Type II in progress.

What clients say

Remote document signing is a legal minefield. YuSMP built both the mobile signing flow and the Symfony CRM in a single engagement, handled KYC onboarding, and delivered API docs that our compliance team cleared in days.
David Mercer, CEO, Signatory ProView case →
A retail chain with dozens of locations needs document workflows that non-technical staff can follow without training. YuSMP built an internal DMS with approval chains, versioning, and role-based access that our compliance officer called the cleanest system we have ever deployed.
Sandra Hoffmann, IT Director, RetailDocsView case →

FAQ

GovTech FAQ

Do you build to FedRAMP and StateRAMP requirements?

Yes. We engineer to FedRAMP Moderate and High baselines on AWS GovCloud and Azure Government, support StateRAMP for state agencies, and produce the SSP, control implementation summary and POA&M evidence sponsors need to authorize.

How do you handle Section 508 and WCAG 2.2 accessibility?

We build to WCAG 2.2 AA from the design system up, validate against Section 508 ICT Refresh requirements, run axe plus manual assistive-technology testing and document conformance with an updated ACR/VPAT per release.

Can you integrate with Login.gov, ID.me and eIDAS?

Yes. We integrate Login.gov for IAL2 federal services, ID.me where agencies require it, and eIDAS-notified eID schemes plus the EU Digital Identity Wallet for EU portals.

How do you approach the EU AI Act?

We classify systems against the EU AI Act risk tiers, document training data, run bias and robustness testing, and engineer the technical documentation and post-market monitoring that high-risk public-sector use requires.

Do you support NIS2 and DORA?

For EU public bodies and operators of essential services, we implement NIS2 risk management, incident reporting and supply-chain controls. DORA applies where financial services overlap, with ICT third-party register and resilience testing.

How do you handle long procurement and slow change windows?

We work fixed-scope or T&M under public procurement frameworks, deliver in agency-controlled environments and align release trains with congressional, parliamentary or fiscal-year change calendars instead of fighting them.

Which cloud regions and sovereign options do you deploy to?

We deploy to AWS GovCloud (US) and Azure Government for federal and state workloads, and to EU sovereign regions — OVHcloud, T-Systems Open Telekom Cloud and AWS Frankfurt — where data residency requires it. On-prem and air-gapped deployments are supported for OT-adjacent or highly sensitive systems.

Can you modernise legacy mainframe and COBOL systems without downtime?

Yes. We wrap legacy back ends behind REST/GraphQL APIs and an anti-corruption layer, then migrate capabilities incrementally so citizen-facing services stay live throughout. This strangler-fig approach avoids the risk of a big-bang cutover on a mission-critical system.

Do you provide the SSP, POA&M and ATO evidence sponsors need?

Yes. Our engineers author the System Security Plan, control implementation summary and POA&M from day one, map control inheritance to the platform, and package the evidence your agency's authorizing official and 3PAO need to grant an authority to operate.

Can you work within our procurement vehicle or as a subcontractor?

Yes. We deliver fixed-scope or T&M under existing public-procurement frameworks and can operate as a subcontractor or specialist supplier to an incumbent prime, working entirely inside agency-controlled environments and toolchains.

How do you handle FOIA and open-data obligations?

We build auditable records with retention schedules plus redaction and disclosure workflows for FOIA and the EU Re-Use Directive, and publish machine-readable open data through CKAN or Socrata catalogs with DCAT-AP metadata and rate-limited APIs.

Do you offer a discovery phase before a full commitment?

Yes. We start with a fixed-scope, two-week discovery that produces a service map, citizen-journey analysis, an authority-to-operate boundary and an accessibility baseline — enough for your team to plan and budget the build with confidence.

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