Contractor Founding Full-Stack Efounding Full-Stack Engineer

Worldwide | Sept. 4, 2026

Report as Closed

Company: Sira AI

Country: Worldwide

Salary: $60,000 - $60,000

Type: Remote

Employment: Full-time

Description: Sira AI is building an AI agent performance platform that helps teams observe, test, compare, and optimize AI agents across every prompt, model, workflow, and tool change. None

Required Skills

-Strong full-stack engineering ability with experience building real applications, not just scripts or

notebooks.

-Strong backend experience with Python and FastAPI, or Node.js with Express or NestJS. FastAPI is

preferred.

-Experience with React, Next.js, TypeScript, and modern dashboard-style user interfaces.

-Experience with PostgreSQL and database schema design. Experience with SQLAlchemy, Prisma,

-Drizzle, or similar ORM tools is useful.

-Comfortable working with structured JSON event data, logs, traces, metrics, and analytics-style data

models.

-Experience building REST APIs, authentication flows, admin dashboards, and internal or customer-facing

SaaS products.

-Practical experience using LLM APIs such as OpenAI, Anthropic, or similar providers.

-Familiarity with LangChain, LangGraph, OpenAI Agents SDK, CrewAI, AutoGen, RAG systems, prompt

evaluation, or AI-agent workflows is highly valuable.

-Comfort with Docker, GitHub, environment variables, deployment basics, and clean project

documentation.

-Ability to move fast, communicate clearly, make tradeoffs, and avoid unnecessary complexity.

Sira AI is building an AI Agent Performance Platform.

The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every

prompt, model, workflow, and tool change.

The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, compare

one agent version against another, detect regressions, analyze cost and latency, and generate a clear

decision report showing what improved, what broke, and what needs to be fixed.

The goal is simple: help teams understand whether their AI agent is working, whether the next version is

better, and what to optimize before it reaches users.

Role Details

This is a full-time contract role, Monday–Friday, approximately 9:00 AM–5:00 PM U.S. Eastern Time.

-Contract to founding engineer.

-We are looking for a senior-level builder with roughly 5 or more years of software engineering experience.

-The ideal candidate has at least 1 to 2 years of practical experience building with LLMs, AI agents, RAG

systems, evals, observability, analytics dashboards, or AI SaaS products.

-Formal credentials matter less than proof of work, speed of execution, product judgment, and the ability to

build clean software without a large team.

Responsibilities

-You will help design and build the first working MVP for Sira from the ground up.

-You will build trace ingestion through a JSON upload flow and a basic API endpoint so users can send

agent run data into the platform.

-You will design the database schema for users, workspaces, projects, agents, versions, runs, trace steps,

tool calls, errors, metrics, evaluations, and reports.

-You will build a dashboard where users can view runs, inspect trace steps, filter by version, identify failed

cases, and understand what happened inside an agent execution.

-You will build version comparison logic that compares two groups of agent runs across success rate, cost,

latency, error rate, tool usage, regression cases, and improvement cases.

-You will build a simple release or performance report that explains whether a new version looks better,

worse, or risky compared with the previous version.

-You will integrate lightweight LLM analysis to summarize failures, cluster common issues, and suggest

likely fixes or next tests.

-You will set up a clean deployment flow, environment variables, documentation, and a handoff-ready

codebase that another engineer could understand and extend.

- You will work closely with the founder to turn user feedback from design partners into simple product

improvements without overbuilding

Before being offered the contractor role to build the MVP, you will be assigned a paid technical work sample

of $500–$1,000, depending on the scope and candidate experience.

If offered the role, you will be assigned to build the MVP in 1 month, with $5,000 USD fixed for the initial MVP

build.

Validation Retainer: $500–$1,000/month for light bug fixes, small improvements, weekly support, etc. while

the founder validates the product.

If Validated: Potential longer-term full-time founding engineer role at $5,500–$7,000/month USD + 1% vested

equity. Equity is not granted upfront. Equity would be vested and tied to a longer-term commitment,

contribution, and continued progress.

Preferred Tools & Technologies

-Frontend: React, Next.js, TypeScript, Tailwind CSS, shadcn/ui, dashboard UI patterns.

-Backend: Python, FastAPI, Node.js, Express, NestJS.

-Database: PostgreSQL, Supabase, SQLAlchemy, Prisma, Drizzle, Alembic, migrations.

-AI and LLM tooling: OpenAI API, Anthropic, LangChain, LangGraph, RAG, evals, prompt testing, agent

traces, LLM observability.

-Infrastructure: Docker, GitHub, Vercel, Render, Railway, Supabase, AWS basics, CI basics.

-Data and analytics: JSON traces, event data, cost calculations, latency metrics, success rates, failure

analysis, reporting.

Apply here:

Web: Apply here

Emails: