Small Disadvantaged Business  ·  Minority-Owned  ·  Pursuing SBA 8(a)

Government systems built for the people who have to run them.

We do the engineering and the adoption work as one engagement. Custom software, systems integration, and the organizational readiness that decides whether a modernization actually holds.

For public agencies, universities, and prime contractors. Systems engineering · integration · adoption.

Discuss a requirement Capability statement (PDF) (opens in a new tab)
UEI SKWZL71W9YG5 CAGE 07D99 NAICS 541512
The gap we close

Modernization doesn't usually fail in the build. It fails after.

A system gets delivered on spec. It passes acceptance. And then it sits underused, because the people expected to operate it were never part of the change.

Operators revert to familiar workarounds. Managers don't reinforce the new process. Internal teams stay dependent on the vendor long after the contract was supposed to end.

The integrator leaves at go-live. A training vendor gets procured months later, once the underuse shows up in the numbers. Two contracts, two accountabilities, and a gap between them where the value leaks out.

Nissus closes that gap with one team. The people designing the system are the people preparing the organization to use it.

A system nobody uses is a system nobody bought.
How an engagement runs

One engagement. Two halves that were never meant to be separate.

01Discover

Read the work before the system

We map how the work is actually done today, not how the process document says it is. Who touches what, where the workarounds live, which decisions are already informal. A technical requirements exercise and a change readiness assessment at the same time, because they are the same conversation.

02Engineer

Build

Custom software, systems integration, API and data layers, cloud architecture — built against the constraints that are real in public-sector environments. Legacy systems that cannot be turned off, security and access requirements, procurement cycles that outlast staff.

03Enable

Bring the organization with it

Operator readiness, custom curriculum, and the leadership work that makes managers advocates rather than obstacles. We name what's in it for each group, because adoption is a communication problem before it is a training problem.

04Transfer

Hand over so it holds

Transfer capability, not dependency. Documentation the next team can read, internal capability rather than dependency on us, and a clear measure of whether the thing is actually being used.

Why this matters

Go-live isn't the finish line.

Most contracts are written to end at the first of these three. We build toward the third.

Deployment

The system is operational

It passes acceptance and runs in production. This is where most technical scopes stop.

Adoption

People actually use it

Operators work in the new system rather than around it, and the old workarounds go quiet.

Institutionalization

The agency owns it

Staff can operate, extend, and maintain the system without the vendor. Nissus is built around this outcome.

We define adoption up front What counts as adopted is agreed before engineering starts, not argued about at handoff.
We report against it Utilization and workflow completion are tracked and reported, not assumed.
We measure independence Handoff is complete when your staff can run it without us — and we say so in writing.
Capabilities

Two disciplines, procured separately almost everywhere else.

We focus where our team has direct delivery experience. Concentrated capability outperforms broad claims — particularly in government work.

A systems integrator

Builds the technology, then leaves at go-live.

A change or training firm

Arrives afterward, without having built the thing.

Systems & Software Delivery

Custom application development, systems integration, API design, data infrastructure, and cloud architecture. Backend depth in Java and Spring, full-stack delivery in Angular and React, enterprise database work in Oracle and SQL Server. Our team has more than two decades of experience delivering production systems across government contracting, banking, healthcare, telecom, and high-volume retail — including secure information-sharing platforms delivered under U.S. government contract.

541512 Computer Systems Design Services
541511 Custom Computer Programming
541519 Other Computer Related Services
518210 Data Processing & Hosting

Adoption & Change Leadership

Change management, operator readiness, and leadership development for the teams inheriting new systems. Stakeholder mapping, adoption planning, and custom curriculum design — grounded in adult development research rather than generic management training. Delivered by the same team that built the technology, scaling through a curated network of senior associate trainers.

611430 Professional & Management Development Training
541611 Administrative & General Management Consulting
541612 Human Resources Consulting
541720 R&D in the Social Sciences

The difference: both are delivered against the same system, the same requirements, and the same operational outcomes.

Past performance

Systems that went into production and stayed there.

Our team has more than two decades of experience delivering production systems for government, financial services, and Fortune 500 enterprise clients. Selected engagements.

NC4 Inc  ·  2014–2017  ·  U.S. government contract

Secure information sharing across agencies

Challenge

Agencies needed to exchange sensitive information and coordinate emergency communications across organizational boundaries, under evolving operational requirements.

What we delivered

  • Backend services and APIs for secure data exchange
  • Customized workflows, business logic, and communication features
  • Testing, deployment support, and technical documentation

Outcome

A production system supporting secure information exchange in a multi-agency government environment.

Java · Spring · Hibernate · REST · Oracle
Apex Systems (USAA)  ·  2020–2021  ·  Financial services

Loan origination and customer onboarding

Challenge

Loan origination and onboarding workflows required secure processing and regulatory validation while remaining workable for the business teams operating them daily.

What we delivered

  • Backend functionality and REST APIs for origination workflows
  • Secure business logic, validations, and SQL data access
  • Requirements analysis and defect resolution alongside business analysts and QA

Outcome

Released into production in a regulated banking environment, with business stakeholders involved from requirements through release.

Java · Spring · REST · SQL · Linux
Accenture (IHG)  ·  2019–2020  ·  Global hospitality

Workflow automation across distributed teams

Challenge

Document management and publishing workflows spanned business owners in one country and development teams in another, with requirements repeatedly lost in translation between them.

What we delivered

  • Java and Spring components and REST APIs for enterprise workflows
  • Customized document handling, publishing, and reporting modules
  • Requirements translation between business owners and offshore delivery teams
  • Implementation documentation for the teams inheriting the work

Outcome

Workflows delivered and handed over with the documentation and shared understanding needed to operate them after the engagement ended.

Java 8 · Spring · REST · JavaScript · Jenkins
Genesco Inc  ·  2021–present  ·  National retail

Enterprise systems modernization

Challenge

Business-critical merchandising, inventory, and order systems needed continuous modernization without interrupting operations that cannot be paused.

What we delivered

  • Spring Boot services and REST APIs across inventory and order management
  • Integrations spanning merchandising, fulfillment, and reporting platforms
  • Release management, production support, and performance remediation
  • Code review and developer mentoring to raise team standards

Outcome

Sustained ownership of business-critical systems as lead developer, including data integrity through peak operating cycles.

Java 11 · Spring Boot · Angular · Oracle · Azure DevOps · Docker

Detailed case studies available on request. Client references furnished for qualified opportunities.

Relevant team experience

Selected production-system experience from prior roles and engagements of Nissus personnel.

NC4 · U.S. government contract USAA Accenture InterContinental Hotels Group Cisco Systems Sony AT&T HP New York Life Genesco

Engagements delivered by Nissus personnel in prior roles as employees or contracting engineers. Nissus has not held a contract with these organizations, and no endorsement or affiliation is implied. Named here because the systems and the standards they were built to are relevant to the work we do now.

Who does the work

Two people you'll actually be working with.

Nissus is deliberately small. There is no business development layer between you and the people delivering. Both partners are on the engagement, and the firm scales through a curated network of senior associates rather than a broad bench with thin specialization.

Sushant Shrestha, Managing Partner

Sushant Shrestha

Managing Partner · Applied AI & Adoption

Leads applied AI, analysis, and adoption. Builds AI-powered applications and analytical tools end to end — document processing and AI-assisted drafting, workflow and approval systems, audit trails, and role-based access. Designs the data schemas, KPI frameworks, and reporting infrastructure organizations run on, including the measurement architecture a twenty-company portfolio reports against. Two decades across organizational analysis, data and measurement design, and capital strategy. Guest faculty at the California Institute of Integral Studies. Trained in the Social Finance Programme at Saïd Business School, University of Oxford.

Nishant Shrestha, Technical Lead

Nishant Shrestha

Technical Lead · Systems & Software

Leads systems and software delivery. Two decades building and supporting production enterprise applications, including U.S. government contract work on secure information-sharing systems at NC4 and financial systems for USAA. Prior delivery at Accenture, Cisco, Sony, AT&T, and HP across banking, healthcare, telecom, and high-volume retail. Currently lead developer on business-critical merchandising, inventory, and order systems in a Linux and Oracle environment, with ownership spanning architecture, integration, release management, and production support.

Brothers. Which means the handoff between the technical work and the organizational work isn't a process we invented — there's nobody to hand off to.

Teaming & subcontracting

We take responsibility for the part of the engagement that shows up after go-live.

For primes, that means engineering capacity plus the operational readiness work that determines whether the delivered system actually gets used.

Whether the delivered system gets used is what agencies remember and what CPARS records. We support primes on both sides of that: production engineering capacity, and the adoption work that most technical subcontractors don't offer and most training vendors can't deliver in a technical context.

  • Subcontracting plan support Small Disadvantaged Business and Minority-Owned status. Pursuing SBA 8(a).
  • Registered and ready SAM.gov active, CAGE assigned, WEBS registered in Washington State.
  • Senior-level response You reach a partner directly, not a business development intake queue.
  • Scalable delivery Core team plus a curated network of engineers and senior associate trainers.
Discuss a teaming opportunity
Contracting & registrations
UEISKWZL71W9YG5
CAGE07D99
UBI604762945
DesignationsSmall Disadvantaged Business · Minority-Owned Business
In progressSBA 8(a) Business Development — pursuing
RegisteredSAM.gov · WEBS (Washington State) · UW supplier system
PersonnelU.S. citizens
Primary NAICS541512  Computer Systems Design Services
Secondary NAICS611430  Professional & Management Development Training
LocationBellevue, Washington
Get in touch

Tell us what you're trying to get adopted.

Whether you're a contracting officer, prime contractor BD lead, or program manager — we respond directly and quickly. We respond within one business day.

info@nissuscapital.com