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We are looking for an experienced Python / document intelligence / data modeling engineer to extend an existing evidence-based organization profiling system. This is not a greenfield project. We already have a working Python codebase with: an existing typed Ngo / organization model; existing organization profile fields; evidence/provenance concepts; an evidence-backed capability projection layer; automated tests; anti-leakage safeguards; an existing KRS parser; an existing canonical organization schema; downstream decision logic already consuming organization data; one real structured organization capability already working end-to-end. Your task is to extend the existing implementation, not replace or redesign it. The main goal is to make the current organization profile useful enough for real decision-making by safely adding the most important missing organization capabilities from structured sources, statutes, questionnaires and other supplied documents. What already exists The current organization model already contains fields such as: organization type; registration date / year; statutory purposes; activity domains; target groups; geographic capacity; institution access; organization experience; staff capabilities; staff experience; program assets. The existing system also already includes: provenance-aware candidate concepts; UNKNOWN semantics; fail-closed behavior; deterministic tests; safeguards preventing unrelated free text from silently becoming a stable organization fact; downstream integration with an existing decision engine. You will receive the relevant source files, models, interfaces, tests and examples. You are not expected to design the organization model from scratch. Main Task Your task is to extend the current evidence-backed organization capability layer so that it can safely populate a bounded set of high-value organization profile fields. Possible priority fields include: statutory purposes; activity areas; target groups; geographic operating capacity; organization experience; institution / facility access; staff capabilities; staff experience or qualifications; program or operational assets; registration-related facts where authoritative evidence is available. The final v0.1 scope will be agreed before implementation. We do not expect support for every possible organization fact. Input Sources The module will work with an existing versioned intake contract: ORGANIZATION_INTAKE_V1 Inputs may include: organization name; Polish KRS registration number; structured questionnaire answers; statute / governing document; optional additional documents; structured facts already available in the existing system. The exact schema and existing code interfaces will be provided. Evidence Status One of the most important requirements is to keep different evidence levels clearly separated. The system should distinguish between: VERIFIED — supported by an authoritative structured source; DOCUMENT_EVIDENCED — explicitly supported by an organization document; DECLARED — supplied through a structured questionnaire; UNKNOWN — insufficient evidence. For example: Structured registry field → VERIFIED Statute, page 5 → DOCUMENT_EVIDENCED Questionnaire answer → DECLARED No reliable evidence → UNKNOWN A declaration must never silently become VERIFIED. Evidence-First Processing Conceptually: Structured source / statute / questionnaire / supplied document → evidence-backed candidate → validation → existing organization model Every positive fact should preserve appropriate provenance, such as: source type; document identifier/hash; page number where applicable; supporting evidence quote; source field/value; extractor or projector version; evidence status. Provenance should remain separate from stable organization semantics where appropriate. Important Anti-Leakage Rule The system must not derive stable organization capabilities from unrestricted unrelated free text. For example, information found only in: previous application text; project descriptions; marketing copy; notes; historical free-text profiles; unrelated documents; must not silently become a VERIFIED or stable capability. If a fact cannot be safely established, the correct result is: UNKNOWN not an inferred best guess. Document Processing Some supplied documents, particularly statutes and registration-related documents, will be in Polish. Native Polish fluency is helpful but not mandatory if you are comfortable working with Polish-language documents using modern LLMs, translation tools and provided acceptance cases. We will provide representative documents and expected outputs. LLM Usage We are open to LLM-assisted extraction where it is useful, especially for long statutes or complex documents. However: LLM output must be treated as a candidate, not automatically as truth; structured/schema-constrained output is preferred; evidence must be preserved; deterministic validation should be applied where possible; unsupported or ambiguous information must remain UNKNOWN; the implementation should not unnecessarily depend on a single LLM provider. A hybrid approach using deterministic parsing + LLM extraction + validation is welcome. Important Architectural Constraints Please do not redesign the existing system. In particular: do not replace the existing organization model; do not create a parallel profile architecture; do not redesign the database unless explicitly approved; do not build a frontend; do not build the intake form; do not implement n8n orchestration; do not modify the opportunity/document extraction module; do not rewrite the downstream decision engine; do not perform unrelated refactors; do not promote unsupported facts into stable organization capabilities. If an existing source does not provide a trustworthy binding for a specific field, report the limitation rather than inventing one. Expected Deliverables We expect: extension of the existing Python capability/profile layer; implementation of the agreed additional organization capabilities; integration with the existing Ngo model and existing interfaces; preservation of VERIFIED / DOCUMENT_EVIDENCED / DECLARED / UNKNOWN semantics; provenance for positive facts; deterministic automated tests; anti-leakage tests; representative real-document tests; fail-closed handling of ambiguous or missing information; concise technical documentation; a short coverage report describing: supported fields; source used for each field; evidence status; unsupported cases; known limitations. Definition of Done The project will be considered complete when: the agreed additional organization profile fields are supported; existing functionality continues to work; existing organization type capability behavior is preserved; every positive fact has traceable evidence/provenance; VERIFIED, DOCUMENT_EVIDENCED, DECLARED and UNKNOWN information remain clearly distinguishable; unrelated free-text content cannot silently create stable capabilities; ambiguous or unsupported information remains UNKNOWN; automated tests pass; representative real inputs produce the agreed expected outputs; the implementation is delivered as a bounded extension to the existing codebase and is ready for independent review. Out of Scope This project does not include: building the organization intake form; frontend development; n8n orchestration; opportunity/grant document extraction; matching logic redesign; database redesign; building a new organization profile system from scratch; rebuilding the existing platform. Ideal Candidate We are particularly interested in developers with experience in: Python; document intelligence; structured information extraction; NLP; LLM structured outputs; schema-driven data modeling; evidence/provenance systems; PDF processing; automated testing / pytest; working safely inside an existing production-oriented codebase. When Applying Please briefly explain: how you would extend an existing evidence-backed organization profile system without redesigning it; how you would preserve VERIFIED vs DOCUMENT_EVIDENCED vs DECLARED vs UNKNOWN semantics; where you would use deterministic extraction versus LLM-assisted extraction; how you would prevent unrelated free-text data from becoming stable facts; examples of similar Python/document intelligence work; your estimated delivery time; your estimated number of hours for a bounded v0.1 extension. We are looking for someone who can carefully extend an existing, test-driven evidence-based system, not someone proposing a complete rewrite.
Project ID: 40653084
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The heart of this is the evidence hierarchy — VERIFIED, DOCUMENT_EVIDENCED, DECLARED, UNKNOWN — and making absolutely sure an assumption can never be silently promoted to a verified fact, which I'd enforce at the type level so it's structurally impossible, not just a convention. Working within your existing models, tests and provenance concepts, I'd build the v0.1 module against the ORGANIZATION_INTAKE_V1 contract as a bounded component: each profile field carries its own evidence tag plus a pointer back to the source (KRS record, a specific span in an uploaded statute, or a questionnaire answer). KRS numbers I'd treat as the authoritative structured source, document claims I'd extract from the PDF layer you already have and mark DOCUMENT_EVIDENCED with the exact locator, and anything unsupported defaults to UNKNOWN. I'll match your typing and test conventions and cover the promotion rules with tests. I can start immediately.
$10 USD in 1 day
6.6
6.6

Your second sentence is the one that made me read the rest: "we do not want the existing system redesigned." That is the right instruction, and it is the one most bidders will quietly ignore — a bounded v0.1 component that fits an existing architecture is a different discipline from building something new. How I would work: - Read the existing code first — the typed models, the decision logic, the provenance concepts — and write back what I understood before proposing anything. If my reading is wrong, that is cheap to correct at that point and expensive later. - Build the profiling component behind the interface your downstream analysis already expects, matching your existing conventions rather than importing mine. - Evidence and provenance carried through every derived field. In an evidence-based system an unsourced value is worse than a missing one, because it cannot be checked and it silently propagates. - Extraction kept deterministic where the input is structured, with a model used only where genuine language understanding is needed — and its output validated against the document rather than trusted. - Tests in the style already in the repository, covering the extraction contract, not just the happy path. Proof: Python is my production stack — FastAPI services with SQLAlchemy 2.0 and pytest suites in commercial use, plus document-processing and OCR pipelines running unattended for industrial clients. I have bid at your posted maximum; I suspect the real scope warrants more and I would rather quote honestly once I have seen the repository. Question: can you share the codebase or a redacted extract of the organization model? Martin
$30 USD in 7 days
6.6
6.6

Hello There! I’m Md Toriqul Islam, an experienced Python and document-intelligence developer specializing in structured data extraction, LLM workflows, schema validation, provenance, PDF processing, and test-driven development. I understand you need a bounded extension to an existing evidence-backed organization profiling system—not a rewrite. I’ll safely add the agreed profile capabilities while preserving the existing model, interfaces, evidence semantics, anti-leakage safeguards, and downstream behavior. I’m skilled in Python, document parsing, LLM structured outputs, schema-driven extraction, PostgreSQL, pytest, provenance tracking, validation, and fail-closed architectures. I’ll use deterministic extraction where reliable, LLM-assisted extraction for complex documents, and validation layers to ensure unsupported or ambiguous facts remain UNKNOWN. Looking forward to hearing from you. Best regards, Md Toriqul Islam
$10 USD in 1 day
5.7
5.7

I’d extend your existing Python capability layer in-place, preserving the current Ngo model, provenance contracts, VERIFIED/DOCUMENT_EVIDENCED/DECLARED/UNKNOWN semantics, and fail-closed behavior; deterministic parsing first, LLM-assisted extraction only where justified, with strict validation and anti-leakage tests. I can handle PDF/document intelligence, structured extraction, schema-driven Python models, pytest, and evidence-backed pipelines, with clean integration and documentation rather than a rewrite; estimated 5–7 days / 25–40 hours for a bounded v0.1 scope after reviewing the repository and acceptance cases.
$15 USD in 2 days
5.3
5.3

Hi — this is a good fit for extending an existing evidence-based system without changing its architecture. I’d work directly with your current models and interfaces, adding the agreed organization capabilities while preserving VERIFIED, DOCUMENT_EVIDENCED, DECLARED, and UNKNOWN semantics. I’d use deterministic extraction where possible and LLM-assisted extraction for complex documents like Polish statutes, with validation and provenance attached to every positive fact. Anti-leakage tests would ensure unrelated free text can’t become stable organization capabilities. Two quick questions: Which organization fields are the highest priority for v0.1? Do you already have representative documents and expected outputs for testing? Shakila Naz
$20 USD in 1 day
5.3
5.3

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom
$20 USD in 1 day
4.9
4.9

Hi, This fits me perfectly, and I'll get it done! Your project immediately caught my attention — this is exactly the kind of work I enjoy and excel at. I've built up solid experience in this area and I'm genuinely excited about the opportunity to contribute. I'd invite you to browse my profile and past work to get a sense of what I bring to the table. I'm available to start promptly and happy to jump on a quick call to align on your expectations. Let's make this happen!
$99.99 USD in 7 days
3.9
3.9

Hello, Evidence-backed profiling fails when LLM extraction isn’t constrained by schema validation at the parsing layer. I’d implement a three-stage pipeline: deterministic KRS/structured source parsing → LLM extraction with JSON-schema enforcement for statutes → post-extraction rule-based validation that downgrades unsupported claims to UNKNOWN before they touch the profile model. VERIFIED facts come only from authoritative APIs (e.g., Polish KRS registry); DOCUMENT_EVIDENCED requires page-level citations with hash-verified passages; DECLARED is questionnaire-only with explicit user attribution. Anti-leakage tests would inject adversarial free-text into document streams and assert zero profile field mutations without valid evidence chains. Polish statute processing needs domain-specific prompt templates—not generic translation—to preserve legal terminology during extraction. Do you have sample KRS API responses and annotated statute excerpts for test fixtures? Share existing organization model schema and one representative statute so I can confirm extraction boundaries align with your current type system before implementation.
$30 USD in 1 day
3.1
3.1

With years of experience as a software engineer, specializing in Python, I'm confident I can deliver the organization profiling module you need for your existing system. My background in document intelligence and data modeling is especially pertinent to this project. Understanding the need for an evidence-based approach to organization profiling, my skills will ensure authoritative sources are verified, relevant documents are evidenced and user-declared information is acknowledged. In addition, my experience with integrating systems for downstream analysis aligns well with your goal for v0.1 of the project. I understand that there is 'no assumption into verified fact' policy. With me, you can be sure of a safe and reliable bounded-organization profile intelligence 0.1 component in your system. While not mandatory for me, I believe my native Polish fluency will come in handy when incorporating the language-specific statutes or registration-related documents into the module. My proficiency with modern LLMs and translation tools facilitates document processing and provenance/evidence management effectively. So, let's collaborate to add value to your project while maintaining topnotch standards!
$99 USD in 3 days
1.9
1.9

Hello, I will extend your existing Python capability layer to safely populate the agreed high-value fields from KRS, statutes, and questionnaires, preserving VERIFIED, DOCUMENT_EVIDENCED, DECLARED, and UNKNOWN semantics without touching the Ngo model. I can start today. I will combine deterministic parsing for structured sources with schema-constrained LLM extraction for Polish statutes, keeping every candidate quote, page, and hash bound to provenance before validation. Questions: 1) Which fields are in-scope for v0.1? 2) Preferred LLM provider, or provider-agnostic? Looking forward to discussing further. Regards, Shayan.
$30 USD in 1 day
1.8
1.8

Hi , You need an expert in Software Architecture, Python, NLP and Large Language Models (LLMs), and I have a tailor-made solution ready for you. Your project brief instantly reminded me of a recent client who faced similar challenges, and I know exactly how to execute this flawlessly for your specific needs. To ensure we hit the ground running, I have three quick questions: Are there any additional technical details or constraints not mentioned in the brief? What is the primary hurdle currently blocking your progress on this? What is your strict timeline for completion? Why trust me with your project? The Record: 250+ Projects. 6+ Years. 100+ consecutive 5-star reviews. The Standard: Zero misses. I don’t just finish the job; I guarantee flawless execution. The Availability: Full-time freelancer, online 9 AM - 9 PM EST. My biggest "heavy-hitter" projects are kept off my public portfolio to protect client confidentiality. Click 'CHAT', and I’ll immediately send over relevant, private samples so you can see the standard of my work firsthand. Best regards, Muhammad Arsalan
$10 USD in 4 days
0.0
0.0

Thanks for detail. I have solid experience in document intelligence, RAG extraction, Python document parsing. So I know this workflow well. I hope to discuss about what you want from my proposal on detail chat. Thanks Lugic
$200 USD in 5 days
0.0
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Hello What I need is you, and what you need is me. Together, we are mutually beneficial, and over time, that collaboration becomes a valuable asset. Juan
$20 USD in 2 days
0.0
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Hi, I can extend the existing Python organization profile layer while preserving its current models and interfaces. Building a bounded v0.1 that adds evidence-backed capabilities without weakening VERIFIED, DOCUMENT_EVIDENCED, DECLARED, and UNKNOWN semantics is the goal. I’ll use deterministic extraction for structured sources and clear fields, LLM-assisted extraction for harder statute/document content, and validation before anything reaches the existing Ngo model. I’ve handled builds where provenance, schema-driven outputs, pytest coverage, and anti-leakage rules were essential to keeping extracted facts trustworthy. I’ll keep unrelated free text isolated so unsupported information remains UNKNOWN rather than becoming a stable capability. I’m determined to win this project and confident I can deliver high-quality results within the agreed deadline if awarded. Best regards.
$20 USD in 7 days
0.0
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