H

Handoff

Generative AI for construction cost estimation

Backend Software Engineer

Full-Time
$5k - $6.5k/mo+ Stock options + Relocation allowance
Senior
São Paulo, State of São Paulo, Brazil
Hybrid
Software EngineeringBackend Engineering

About the job

Requirements
  • At least 5 years of software engineering experience, including a track record of shipping and operating production systems.
  • Full-stack proficiency in Node.js, Python, and SQL to customize outputs, build integrations, and automate exports across the stack.
  • Hands-on API experience designing, exposing, and documenting APIs, mapping data to a client's schema, and working with legacy or non-REST systems.
  • Ability to work directly with client engineers and non-technical estimating staff through email, calls, and Microsoft Teams.
  • Ability to define quality metrics, track accuracy trends across iterations, and make progress quantifiable and defensible.
  • Ability to own technical delivery for multiple accounts and navigate ambiguity, shifting requirements, and staggered timelines.
  • B2+ English proficiency for effective communication and documentation with US clients.
Responsibilities
  • Own end-to-end technical delivery for 2–3 enterprise accounts, from pilot success criteria through production rollout and ongoing support.
  • Customize estimates, takeoff drawings, and summary reports to each client's templates, naming conventions, units, material preferences, and branding.
  • Establish and automate intake and delivery workflows, including file transfer, custom CSV exports, and API payloads, into and out of client systems.
  • Expose and document Handoff's API for client use, and build SKU matching that maps estimate line items to a supplier's catalog while maintaining mappings as catalogs evolve.
  • Assess each client's technology stack, including POS/ERP systems such as Oracle; recommend a realistic integration path and assist with connections to legacy systems while accurately scoping feasibility.
  • Lead weekly calibration reviews with the client's estimating team, incorporate correction notes, and improve accuracy against agreed error-rate targets.
  • Meet delivery SLAs and provide first-line technical support and maintenance throughout the engagement.
  • Document account-specific configurations, assumptions, and preferences to support continuity and clean handover.
Desired Qualifications
  • Exposure to LLM/AI applications.
  • Familiarity with residential construction, including framing, foundation, roofing, siding, and interior scope, and with estimating workflows.

About the company

Handoff delivers AI-powered construction cost estimates and back-office tools for residential contractors, remodelers, and handymen. Users describe a project by text or by uploading photos and floor plans, and the AI generates a detailed cost estimate using 1build’s real-time database of prices for millions of materials, labor, and equipment across every US county, with data partnerships from Home Depot and Lowe’s. It differentiates itself with deep, real-time pricing data plus an integrated suite for AI-generated proposals, CRM, invoicing, digital payments, and change orders, all built on a services-first approach that turned thousands of manual estimates into automated workflows. Its goal is to help contractors price jobs accurately, win more work, and reduce paperwork by offering a subscription, including a free trial.

Company Size

51-200

Company Stage

Early VC

Total Funding

$5.9M

Headquarters

Austin, Texas

Founded

2018

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Simplify Jobs

Simplify's Take

What believers are saying

  • H1 is live for Scale Plan and API customers, monetizing breakthrough takeoff automation.
  • Handoff ranked first in estimating software on G2 and serves tens of thousands of contractors.
  • Handoff’s September 2026 app pricing and free trial lower adoption friction for small contractors.

What critics are saying

  • Procore’s July 2026 DroneDeploy deal brings massive vision data into one competing stack.
  • Handoff’s benchmark edge can vanish if rivals fine-tune on the public TakeoffBench.
  • Handoff serves residential remodelers; Procore and Autodesk can bundle adjacent workflows faster.

What makes Handoff unique

  • Handoff’s H1 scored 81.6% on blueprint takeoffs, beating eight major AI models.
  • Nemetschek invested on June 11, 2025, validating Handoff’s contractor workflow platform.
  • Handoff bundles estimating, CRM, invoicing, scheduling, and payments for residential contractors.

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Benefits

  • Unlimited Paid Time Off
  • Remote Work Options
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • Flexible Spending Account (FSA)
  • Dependent Care FSA (DC FSA)
  • Relocation Allowance

Growth & Insights and Company News

6 month growth

-2%

1 year growth

9%

2 year growth

23%
PR Newswire
Jul 21st, 2026
Handoff launches H1 AI model, outperforms major AI by 30+ points on blueprint takeoffs

Handoff has launched H1, an AI system that autonomously generates material takeoffs from construction blueprints. The model scored 81.6% on the Construction Blueprint Takeoff Benchmark, outperforming eight major AI models that averaged around 55%. H1 completes takeoffs in approximately two hours, compared to eight to 20 hours for experienced human estimators. The system uses specialised agents trained to interpret construction drawings across different trades. The tool is now available to Handoff's Scale Plan subscribers and API customers. Austin-based Handoff AI serves tens of thousands of contractors across the United States and ranks first in estimating software on G2. CEO Dmitry Alexin said the system addresses a critical industry challenge where miscalculations can cause significant cost overruns on residential projects.

AEC Magazine
Jul 7th, 2025
Nemetschek Invests in AI Startup Handoff

Nemetschek has strategically invested in Handoff, a US-based AI platform for contractors. Handoff automates tasks like estimating, proposals, client management, and invoicing using real-time pricing data. This partnership aims to enhance digital efficiency in residential construction. Dmitry Alexin, Handoff's CEO, sees this as a validation of their vision to improve construction processes, while Nemetschek's Tanja Kufner highlights the potential to support growth in an underserved segment.

DailyCADCAM
Jun 12th, 2025
Nemetschek Invests in AI Platform Handoff

Nemetschek Group has invested in Handoff, a U.S.-based AI platform for contractors, to enhance digital transformation in construction. Founded in 2019, Handoff automates tasks like estimating and invoicing for remodelers and small businesses, boasting 10,000+ users and $6 billion in project volume. The investment will boost Handoff's product development and international growth.

Handoff
Jun 4th, 2025
Handoff Raises $5.8M to Help Contractors Automate Their Businesses and Build Better Homes

Handoff AI raises $5.5M to help residential remodeling and handymen contractors automate their businesses and build better homes.

Commercial Observer
Jun 3rd, 2025
Handoff Secures $5.8M for Automation Expansion

Proptech startup Handoff has raised $5.8 million in a strategic funding round to enhance its automation of back-office tasks for SMB residential construction contractors. The round was led by Nemetschek Group and Masco, with participation from existing investors Initialized Capital, Afore YC, and Greycroft Capital.