01
Backend & API Engineering
Structured backend services and clear API foundations for products that need to work reliably.
SOFTWARE ENGINEERING · APPLIED AI
Build beyond
the expected.
We engineer dependable software, thoughtful backend systems and practical AI integrations that help ambitious teams move forward.
INDEPENDENT ENGINEERING PARTNERBUILT FOR TEAMS THAT BUILD
01 — ENGINEERING02 — INTELLIGENCE03 — PARTNERSHIPS
01 / WHO WE ARE
A focused technology partner
Good software is more than code.
It’s clarity, craft and follow-through.
ERYNDEX works with businesses, product teams and software agencies to turn defined technical needs into maintainable software. We value clear scope, honest engineering and delivery you can understand.
02 / WHAT WE DO
Capabilities with
purpose.
Practical engineering services, shaped around your product, your team and the problem at hand.
↗
02
Applied AI Integration
Bring useful AI capabilities into existing workflows through model integration, text processing and evaluation.
03
Knowledge Retrieval & RAG
Build retrieval foundations that help teams find relevant information and inspect the evidence behind results.
04
Integration & Delivery Systems
Connect services with deliberate handling for retries, idempotency, request validation and delivery lifecycle.
Every engagement begins with a technical review and a written scope. Final deliverables, timelines and service levels are agreed per project.
03 / ENGINEERING PORTFOLIO
Built to be
reviewed.
Independent engineering demonstrators across backend systems, applied AI, data and web applications. Explore the source and each project's documented boundaries.
Agent Workflow Orchestrator
Approval-aware DAG workflow engine with dependency scheduling, bounded retries, SQLite persistence and an append-only audit trail.
VIEW PROJECT ↗Event Stream Processing Platform
Event-ingestion reference implementation with schema validation, idempotent writes, dead-letter handling and windowed aggregation.
VIEW PROJECT ↗Grounded Document Retrieval API
Source-aware document retrieval baseline using TF-IDF, cosine similarity and a FastAPI interface.
VIEW PROJECT ↗Intelligent Recommendation Platform
Recommendation API with interaction feedback, cold-start fallback, seen-item suppression and explainable ranking.
VIEW PROJECT ↗LLM Gateway Control Plane
Provider-agnostic LLM gateway with routing policies, spend ceilings, bounded retries and a local mock mode.
VIEW PROJECT ↗Market Intelligence & Risk Analytics
Educational OHLCV pipeline with validation, moving averages, daily-change monitoring and CSV reporting.
VIEW PROJECT ↗ML Feature Store
SQLite-backed feature store with typed schemas, versioned entity values, batch lookup and TTL freshness metadata.
VIEW PROJECT ↗ML Model Serving Platform
Versioned scikit-learn model workflow with reproducible training, held-out evaluation and FastAPI inference.
VIEW PROJECT ↗FarsiPulse
Persian sentiment API with conservative text normalization, pretrained-model inference and batch processing.
VIEW PROJECT ↗AtlasRAG — Evidence Retrieval Platform
Evidence-focused retrieval service using BM25 ranking, extractive evidence selection and retrieval evaluation; it does not claim LLM-generated answers.
VIEW PROJECT ↗RoutePilot — Fleet & Delivery Operations
Fleet and delivery MVP with FastAPI, SQLite, delivery tracking, proof-of-delivery metadata and simulated vehicle positions.
VIEW PROJECT ↗SignalDesk — Service Operations Intelligence
Service-desk MVP with ticket creation, assignment, SLA-risk filters, status changes and audit history.
VIEW PROJECT ↗STRIDE — Sportswear & Equipment Store
Responsive sports retail storefront concept with product discovery, filters, wishlist, shopping bag and demo checkout.
VIEW PROJECT ↗RelayForge — Reliable Webhook Delivery
Webhook delivery core with idempotent ingestion, HMAC-SHA256 signatures, bounded retries and dead-letter handling.
VIEW PROJECT ↗Workflow Orchestration Engine
Dependency-aware DAG runner with cycle detection, topological execution, retries and per-step outcomes.
VIEW PROJECT ↗ERYNDEX Company Website
Bilingual company website presenting ERYNDEX services, engineering portfolio, collaboration model and contact paths.
VIEW PROJECT ↗These are portfolio demonstrators and sample implementations. They are not represented as verified customer deployments or production service commitments. Review each repository README for actual scope and limitations.
04 / TEAM & OWNERSHIP
Complementary roles.
Shared standards.
ERYNDEX organizes work around clear commercial and technical responsibilities, with ownership defined for each engagement.
01 / COMMERCIALB.
Business & Partnerships
Client relationships · Opportunity development
Leads discovery conversations, partnership development, opportunity qualification and coordination between client requirements and engineering delivery.
02 / ENGINEERINGT.
Technical Leadership
Architecture · Engineering · Quality
Leads technical assessment, solution architecture, implementation planning, engineering execution and delivery quality.
Specific team biographies and credentials will be published only after review and approval by the individuals concerned.
06 / HOW WE WORK
Less ambiguity.
Better delivery.
01
Understand
We clarify the business need, users, constraints and desired outcome.
02
Scope
We agree deliverables, assumptions, milestones, responsibilities and acceptance criteria.
03
Build
We work in reviewable increments and keep communication practical and transparent.
04
Handover
We provide the agreed code, documentation and knowledge transfer, with follow-on support scoped separately.
07 / START A CONVERSATION
Have a project in mind?
Let’s make the
next thing real.
Tell us what you’re building, where you’re stuck or what kind of delivery partnership you need.