Lead development of a high-performance Web SDK for fraud detection and device fingerprinting, using JavaScript and TypeScript.
Design algorithms for unique device fingerprints and behavior-based insights, and build robust CI/CD pipelines.
Optimize SDK performance, ensure cross-browser compatibility, and maintain data privacy and security principles.
Oscilar builds an advanced AI Risk Decisioning Platform for managing fraud, credit, and compliance risk. It is a mission-driven team of industry veterans from Meta, Uber, Citi, and Confluent, with over 50% of the company in Engineering and Product.
Design and build scalable test automation frameworks for banking APIs, blockchain integrations, and real-time token transactions.
Use AI tools like Cursor AI and Claude to build and maintain test automation suites.
Integrate automated tests into CI/CD pipelines for fast, reliable releases in a regulated financial environment.
Cari Network is building a blockchain-based payment system for real-time, 24/7 movement of digital money across traditional finance and digital asset ecosystems. We are a pre-launch startup with a remote-first culture, offering competitive compensation and benefits.
Design and build user-facing components of services and products using modern web technologies.
Collaborate with backend engineers to integrate APIs and ensure seamless alignment.
Identify and address performance bottlenecks to enhance user experience.
Provable is a company building zero-knowledge applications for the Shield ecosystem. They are a fast-growing team passionate about privacy and transforming the digital age.
Design and maintain automated testing frameworks across UI, API, and integration layers.
Collaborate with engineering and product teams to shape test strategies and improve quality.
Investigate complex defects and implement improvements to testing processes.
US Security & IT is a technology company specializing in security and IT solutions. It is a mid-sized organization that fosters a collaborative and innovation-driven culture.
Drive test automation across API, UI, and end-to-end, shaping coverage for maximum value.
Use AI-assisted tooling to generate and maintain broad verification-focused test coverage.
Build scalable test frameworks for real-time order lifecycle, market data, and financial calculations.
Topstep operates a real-time futures trading platform (TopstepX). They foster a collaborative culture with cameras-on meetings and robust Slack communication, offering competitive benefits for full-time employees.
Develop, maintain, and execute automated test scripts for web applications using Playwright, Selenium, or similar automation frameworks.
Design and execute functional, regression, integration, and exploratory test cases based on business and technical requirements.
Collaborate with developers, product managers, and stakeholders to ensure adequate test coverage and quality standards.
Jumio is a B2B technology company dedicated to eradicating online identity fraud, money laundering and other financial crimes to help make the internet safer. We are the leading provider of online identity verification, eKYC and AML solutions, with a global footprint expanding the team to meet strong client demand.
Build and improve backend code primarily in TypeScript.
Set up and maintain metrics dashboards for production systems.
Automate deployments and operational reporting to Slack.
Wynd Labs builds infrastructure that delivers massive amounts of web data to companies training powerful AI models. They are a lean, technical team that moves fast with no red tape and slow decision-making.
Conduct thorough manual testing of new features, enhancements, and bug fixes across web and mobile applications.
Design and execute test plans, test cases, and exploratory testing, and perform regression testing using manual and automated approaches.
Develop, maintain, and execute automated test suites using TypeScript and Playwright, integrating them into CI/CD pipelines.
AssetWatch serves global manufacturers by powering manufacturing uptime through condition monitoring. They are a growing startup with a devoted team of engineers and business leaders building the future of predictive maintenance.
Own features on web and mobile platforms, including Phantom Extension, Terminal, and mobile app.
Lead initiatives to add support for new blockchains and launch complementary products.
Interface directly with users and developers to collect feedback and inform product direction.
Phantom is a modern money app that combines crypto-powered finance with intuitive tools for managing, spending, and growing money. With a community of 20M+ users and a team of experienced builders, they foster a culture of security, speed, and user experience.
Build and scale test automation, quality infrastructure, and performance testing systems.
Lead design and implementation of core automation frameworks, including migration from Cypress to Playwright.
Define RCA and failure triage processes across teams, and lead RCAs on the most challenging failures.
Qualia has built the leading B2B real estate technology that transforms the home buying and selling experience into a simple, secure, and enjoyable process. The company is growing quickly and is made up of mission-driven coworkers passionate about using technology to solve real-world problems.
Build and ship features across the stack, from API endpoints to the dashboard customers use daily.
Design and implement high-volume, low-latency APIs for security telemetry.
Turn complex security signals into clear, actionable interfaces.
cside is a web security company focused on browser intelligence, leveraging AI to detect sophisticated web threats. Backed by $7.7M in funding, the team consists of seasoned browser internals experts and distributed systems engineers.
Structure and design webpages to support business objectives.
Build UI enhancements and optimize web pages for speed and scalability.
Collaborate with back-end developers and maintain brand consistency.
Zerohash is a B2B embedded infrastructure platform that allows any platform to integrate digital assets into their customer experience. We are a high-growth startup backed by Point72 Ventures, NYCA, Bain Capital, and tastytrade, with a culture emphasizing independence, passion, and collaboration.
Lead the design and development of scalable browser extensions using Manifest V3 and modern browser APIs.
Collaborate with cross-functional teams to integrate security features across endpoint, backend, and web platforms.
Optimize performance, reliability, and security while staying current with evolving browser ecosystems and APIs.
The company specializes in enterprise data security through advanced browser-based technology. It is a fast-moving technology organization with a collaborative and inclusive culture.
Own testing for small features and bugs, delivering scoped work on time.
Write and maintain automated tests using Playwright and API-level tests.
Use AI tools to draft cases and automation while protecting patient data.
Hone is an online medical clinic transforming healthcare and enhancing longevity through cutting-edge science. The company is fully remote and values candid communication, customer focus, and calculated risk-taking.
Own compliance-focused product areas from architecture through production operation.
Build user-facing onboarding and internal tools for compliance workflows.
Integrate third-party APIs and design for failure modes, security, and auditability.
Ondo Finance builds institutional-grade, blockchain-enabled investment products for global markets. It is a well-capitalized category leader backed by top investors, with a small, high-agency engineering team.
Own technical components of test frameworks, test infrastructure, and test tooling.
Design, create, maintain, and optimize test automation frameworks for Optro web applications.
Develop and lead synthetic data & generative AI strategy.
Optro helps enterprises transform risk into opportunity through its AI-powered GRC Intelligence Platform. More than 50% of the Fortune 500, including 7 of the Fortune 10, leverage our award-winning technology, and we are one of the 500 fastest-growing tech companies in North America for the seventh year in a row.
Own transaction processing platform infrastructure for signing and settlement flows, including service design and operational health.
Design data models, API contracts, and retry/backoff logic; write RFCs relied on by Banking and Blockchain engineers.
Define production readiness with SLOs, alerting thresholds, and runbooks; lead incident response and postmortems.
The Cari Network builds blockchain-based payment systems for real-time digital money movement across finance and digital assets. As a pre-launch startup, we are creating new financial infrastructure bringing cash on chain through tokenization.
Work within the Playwright test framework under Sr. SET guidance, expanding UI, API, and integration test coverage.
Execute load and performance tests using k6, JMeter, or Artillery, and validate async event-driven workflows.
Contribute to CI/CD pipeline test integration, API contract testing, and quality observability metrics.
Xplor Technologies powers experiences in everyday life through vertical software, embedded payments, and AI. They serve 130,000+ businesses globally and value transparency, inclusion, and social impact.
Design and build large-scale rendering systems for modern web applications.
Develop browser-based rendering infrastructure for reliable JavaScript execution.
Optimize rendering cost, latency, and throughput at internet scale.
We build the infrastructure layer for agentic web interaction at scale. We are a small team with real scaling challenges, working with leading AI companies.
Architect and deliver complex, high-value features across the Zone platform, ensuring scalable, observable solutions aligned with NetSuite SuiteCloud constraints.
Lead AI integration as a force multiplier, choosing the right AI workflows and debugging to improve team throughput without compromising quality.
Drive automated validation frameworks for AI-generated and human-written code against US GAAP and IFRS logic.
Zone is the ERP-native AI platform for financial operations, purpose-built for Oracle NetSuite, automating financial workflows directly within the ERP. With more than 4,500 customers worldwide, Zone operates as a fully remote, high-velocity global team that values autonomy and high-trust flexibility.