Software Engineer: Tools for Humanity

Wired Currencies; San Francisco, Northern (CA, KY); On-site; USD 191,000 - 225,000; Full time

Benefits offered by this job

Healthcare

dental

vision

401(k) plan and match

life insurance

flexible time off

commuter benefits

professional development stipend

Job summary

Tools for Humanity is hiring a Software Engineer, Crypto Platform in San Francisco. The role builds backend and blockchain infrastructure for transaction execution, state access, calldata, smart contracts, and event ingestion, using Go, Rust, and TypeScript across World Chain platform services.

The engineer works with Go, Rust, and TypeScript across World Chain platform services, focusing on deployment ownership, monitoring, incident response, RPC resilience, transaction simulation, and indexing

Qualifications

• Production backend experience required.
• Familiar with Ethereum or other EVM-based systems.
• Proficient in Go, Rust and TypeScript.
• Experience building blockchain services and data pipelines.

Responsibilities

• Build backend services for transaction execution and state reads.
• Develop calldata, smart-contract, and event-ingestion systems.
• Improve RPC resilience, monitoring, and incident response.
• Maintain distributed systems and indexing pipelines.

Skills

Backend development

Blockchain concepts

Production backend experience

Ethereum familiarity

Tools

Go

Rust

TypeScript

Ethereum

EVM chains

Smart contracts

Event ingestion

Job description

Role

Software Engineer, Crypto Platform

Employer

Tools for Humanity (TFH)

Location

San Francisco

Employment type

Full-Time

Salary

$191,000 to $225,000 plus a competitive long-term incentive package

Benefits

• Healthcare
• dental
• vision
• 401(k) plan and match
• life insurance
• flexible time off
• commuter benefits
• professional development stipend

Tools for Humanity is hiring a Software Engineer, Crypto Platform for a full-time engineering role based in San Francisco. The position builds backend and blockchain infrastructure for transaction execution, state access, calldata, smart contracts, and event ingestion. The employer lists compensation of $191,000 to $225,000 plus a competitive long-term incentive package.

The engineer works with Go, Rust, and TypeScript across World Chain platform services. The work includes deployment ownership, monitoring, incident response, RPC resilience, transaction simulation, and indexing. The role is aimed at blockchain professionals with production backend experience and familiarity with Ethereum or EVM systems.

World Chain Platform Services

The Software Engineer, Crypto Platform role builds services that support World Chain transaction execution, state reads, calldata, smart contracts, and event ingestion. The team also develops Temporal-based indexing and data pipelines for onchain experiences.

Platform work includes maintaining smart contracts and defining abstractions that other product teams can use. The role connects application requirements with the services that read, process, and submit blockchain transactions.

Reliability And Transaction Processing

The engineer improves RPC resilience, failover, redundancy, and transaction simulation. Monitoring and alerting remain part of the work, along with incident response and ongoing maintenance after deployment.

Distributed systems and high-throughput backend experience support the role's operational responsibilities. Event-driven systems, indexing pipelines, and workflow orchestration also appear in the stated experience areas.

Blockchain Skills And Experience

• Write production code in Go, Rust, and TypeScript.
• Build transaction execution and state-access services.
• Develop calldata, smart-contract, and event-ingestion systems.
• Improve RPC resilience, failover, and redundancy.
• Support monitoring, alerting, incident response, and maintenance.

Tools For Humanity And World

Tools for Humanity describes itself as the company building technology behind World, including Orb, World ID, and World App. The employer states that World ID has more than 17 million verified people across 160 countries.

The company was founded in 2019 and reports a workforce of more than 400 people. Its disciplines include hardware, software, artificial intelligence, cryptography, mobile engineering, and global operations.

Engineering Questions

What Is The Employment Type?

Tools for Humanity lists the Software Engineer, Crypto Platform as a full-time role.

Where Is The Position Located?

The public posting lists San Francisco. The employer does not specify a work mode on the public job page.

What Salary Is Listed?

The stated salary range is $191,000 to $225,000, plus a competitive long-term incentive package.

Which Technologies Appear In The Qualifications?

The posting names Go, Rust, TypeScript, Ethereum, EVM chains, smart contracts, account abstraction, ERC-4337, event-driven systems, indexing pipelines, and Temporal.

The role works across product, protocol, infrastructure, and security teams, so feature ownership continues from implementation through deployment and operational support. The platform also includes multiprovider redundancy and transaction simulation as part of its infrastructure scope. The benefits package includes healthcare, dental, vision, a 401(k) plan and match, life insurance, flexible time off, commuter benefits, and a professional development stipend. The public posting does not provide an application deadline or a minimum number of years of experience.