1099 consultant · ~200–500 hrs per funded award · $80–$120/hr · Remote (U.S.)

Semantic Web Engineer, SKOS Thesaurus & VocBench

Maintain and extend a large federal agricultural thesaurus in SKOS and OWL using VocBench: concept editing, SPARQL quality checks, releases and the linked-data publishing pipeline.

About Precision Federal

Precision Federal is a small business building AI, data and software systems for government agencies. The company’s founder loves God, and the company is built on Christian faith: every number we publish is real, every claim we make is verifiable, and the work is done with excellence as service to God. Faith is welcome here and openly shared.

How this role works

You join the bench. You apply with your weekly hours and start time. We set your hourly rate from your résumé, and we may name you on proposals that match this role. If we don't win, you owe nothing.
A contract is awarded. The award funds the team named in the proposal. Your engagement begins at the hourly rate we agreed on.
You work remote, paid from the contract. ~200–500 hrs per funded award — and if no award ever funds, you owe nothing and lose nothing.

What you'll do

Edit, review and release concepts, relations and mappings in VocBench to the agency's editorial rules
Write SPARQL checks that catch hierarchy, label and mapping errors before release
Run the RDF publishing pipeline and linked-data endpoints
Document the workflow so the next editor can pick it up

Required qualifications

Working experience with SKOS, OWL, RDF and SPARQL on a real vocabulary or ontology
VocBench or a comparable thesaurus-management tool
U.S. citizen or lawful permanent resident (U.S. person)
Willing to be named on a federal proposal with a one-page resume, and to sign a short letter of commitment

Preferred qualifications

Library, information-science or terminology background
Experience with the NAL Thesaurus, AGROVOC or another agricultural vocabulary
GraphDB, Fuseki or similar triple-store administration

Compensation & structure

1099 consulting engagement. $80–$120 per hour; we set your rate from your résumé and experience. Hours are funded by federal contract awards — this seat is scoped at roughly 200–500 hours per funded award, fully remote. Work and pay begin only if the contract is awarded — no award, no hours, no obligation.

Join the bench — Semantic Web Engineer, SKOS Thesaurus & VocBench

Every application is read. It takes about 5 minutes.

This is a bench, not a job offer. Work starts when we win a contract that needs you.
We may name you on proposals. If that contract is awarded, you do the role at the rate and hours we agree on.
Paid hourly as a 1099 contractor; full-time roles may be W-2. If your background fits, we will email you.

First name *

Last name *

Email *

Phone *

Work authorization *

LinkedIn or portfolio link

What state do you live in? *

Resume (PDF or Word) *

Questions

Answer from your own experience. A few sentences each is plenty; be specific and tell us what you did yourself.

Precision Federal was founded on Christian values. Our faith in God shapes how we work: many of us openly share our personal faith, share our lives together, and pray for one another. We’re building a close-knit community where we truly care about each other. Taking part is always voluntary, and people of every faith and background are welcome. As we get to know you, you’re always welcome to share your own faith with us.

1. Cover letter. In your own words, tell us about yourself: what guides you (for many of us here, that’s our faith in God), your background, and why this role interests you. *

2. Describe the one controlled vocabulary, thesaurus or ontology you maintained in SKOS or OWL: its size, the editing and release process, the quality checks you ran, your role, and the result. *

Availability

Pay for this role: $80–$120 an hour, set by your experience.

Hours per week you could give on an awarded contract (all part-time, up to 30) *

If you are named and we win, will you be able to start within a few weeks? *

May we name you on proposals for this role, and if we win, will you do the work at the rate we agree on? *

I agree to the Applicant Terms. *

Questions? careers@precisionfederal.com · See all open roles