LEMMASYSTEMS

Capabilities

What we build, and what we keep running.

Six competencies, delivered end to end. We take responsibility for the system after it ships, which is the part that separates a software firm from a body shop.

  1. 01

    Application development & modernization

    Custom line-of-business applications in .NET, Java, and Python, and the incremental decomposition of legacy monoliths into services. Modernization work is sequenced so the existing system keeps serving users throughout — a cutover weekend is a risk we design out rather than plan for.

    • Greenfield application delivery against a defined mission need
    • Strangler-pattern modernization of systems that cannot be taken offline
    • Interface and workflow rebuilds for systems whose logic is sound but whose front end is not
  2. 02

    Cloud migration & infrastructure

    Migration to AWS and Azure with the boundary drawn first. Infrastructure is defined as code from day one, so the environment a security assessor reviews is the same environment that gets rebuilt six months later.

    • Assessment and migration planning with a defensible disposition per application
    • Infrastructure as code in Terraform, with environments rebuilt from source
    • Landing zones and boundary design aligned to FedRAMP and agency requirements
  3. 03

    Data engineering & integration

    Pipelines and integration layers across systems of record that were never designed to talk to one another. Most of the value in a federal data program is in reconciling definitions between two offices, not in the technology — we plan for that being the hard part.

    • Batch and streaming pipelines with lineage and quality checks built in
    • API-first integration that leaves each system of record authoritative
    • Reporting and analytics layers that non-technical staff can actually operate
  4. 04

    DevSecOps & continuous ATO

    Delivery pipelines that produce compliance evidence as a build artifact rather than as a separate documentation exercise months later. The goal is an authorization posture that survives the next release instead of being re-earned each time.

    • CI/CD with automated STIG and SCA scanning gating the pipeline
    • Signed artifacts and provenance so what ran in test is what ships
    • Control evidence generated automatically and mapped to the relevant baseline
  5. 05

    Application security

    Security testing integrated into the pipeline, with findings carried through to closure. A report that lists 400 findings and stops is not a deliverable; a remediated codebase is.

    • SAST and DAST integration tuned to a signal rate developers will act on
    • Dependency and supply-chain review including SBOM generation
    • Remediation delivery, not just findings hand-off
  6. 06

    Operations & sustainment

    SLA-backed maintenance and incident response for systems we built and, where the code is sound, for systems we inherited. Sustainment is where most of a system's lifetime cost sits, and it is the work we plan for from the first sprint.

    • Defined response and restoration targets written into the contract
    • Dependency and patch currency maintained rather than deferred
    • Transition-in and transition-out handled as first-class deliverables

Technology

What we work in.

We are deliberately unexotic. Federal systems outlive the teams that build them, so we choose technologies an agency can still staff for in ten years.

Languages & runtimes

C# / .NET, Java / Spring, Python, TypeScript, Go, SQL

Cloud & platform

AWS, Azure, Kubernetes, Terraform, Docker, GitHub Actions, GitLab CI

Data

PostgreSQL, SQL Server, Oracle, Kafka, dbt, Snowflake, Databricks

Next

See how an engagement actually runs.

Our delivery model, what the first ninety days look like, and the work we turn down.

Our approach