Hubstaff is hiring a Senior Product Engineer for its Growth team. The role is a remote, ~40 hrs/week independent contractor position focused on building and owning customer-facing features end-to-end using Ruby on Rails, PostgreSQL, and frontend technologies (Vue.js, Hotwire, Tailwind). Responsibilities include designing and running experiments (A/B tests), collaborating with Product, Design and Data, and shipping rapid iterations to improve acquisition, activation, engagement and retention. Hiring is listed for Argentina, Brazil, Canada, Poland, Romania, Spain and Portugal.

Veeva is hiring a remote Technical Consultant to develop Java-based extensions using the Vault Java SDK and design cloud integrations (REST APIs, AWS serverless components). Role requires 3+ years programming experience (Java or other OOP), familiarity with AWS services (Lambda, Step Functions, API Gateway, Fargate, CloudFormation), technical consulting experience in life sciences, and the ability to travel up to 10%. Candidates must be located in and authorized to work in the United States or Canada. Compensation listed: $75,000–$150,000 base per year.

Join Stripe's Link team to build front-end experiences and backend infrastructure for a digital wallet and global payments. Responsibilities include designing products, debugging production issues, mentoring engineers, and collaborating across teams. Minimum requirement: 2+ years industry software engineering experience. Preferred experience with payment/financial systems and cloud technologies such as gRPC, GraphQL, Docker, Kubernetes, and AWS.

Reddit seeks a mid-level backend engineer for its Ads organization (remote, Ontario, Canada listed). Responsibilities include building microservices and APIs, distributed and real-time data-intensive systems, and collaborating with product and platform teams. Tech stack includes Go, Python, Scala, Spark, Kafka, Postgres, BigQuery, Redis, Druid, Kubernetes, Argo and Docker. Requires 3+ years of software development experience.

Mid-level backend engineer role within Reddit's Ads organization working on microservices, APIs, distributed and real-time data systems for advertiser-facing products. Technologies listed include Go, Python, Scala, Spark, Thrift, Baseplate, Kafka, Postgres, BigQuery, Redis, Druid, Kubernetes, Argo, and Docker. Responsibilities include feature ownership, collaborating with product/platform/data teams, improving operational stability, and building extensible components.

Design, implement, and operate end-to-end production ML systems including large-scale data pipelines, model training, serving, monitoring, and automated retraining. Work cross-functionally to improve ranking, recommendation, search relevance, advertising systems, and LLM-powered products. Requires 3+ years building and deploying ML systems, strong software engineering skills (Python/Java/Go), experience with ML frameworks (PyTorch/TensorFlow), and familiarity with large-scale data and real-time systems.

Owner of developer tooling and AI DevX platforms at Ramp: evaluate and integrate AI models/tools, build platforms that enable AI-driven engineering, gather developer feedback, and grow vendor partnerships. Role expects ~8+ years of software engineering experience, Python proficiency, strong backend/infrastructure and data systems expertise, and familiarity with AI coding tools and agents.

Ramp is hiring an iOS Engineer to enhance and scale their mobile app, integrate AI and intelligent agents into the mobile experience, and work cross-functionally with Product and Design. The role requires at least 1 year of mobile development experience and proficiency in Swift and SwiftUI. Locations include New York (HQ), San Francisco, and remote in the US and Canada; relocation support to NYC or SF is offered.

Ramp is hiring a Frontend Software Engineer to design and build performant, usable interfaces using JavaScript/TypeScript and React (stack includes Vite and an in-house design system, Ryu). The role expects a minimum of ~2 years frontend engineering experience, a focus on web performance and shipping high-quality products, and includes mentoring and contributing to engineering processes. Locations include New York (HQ), San Francisco, Miami, and remote options in the US and Canada. Relocation support to NYC or SF is offered.

Ramp is hiring an Android (Mobile) Engineer to enhance and scale its Android app. Responsibilities include designing, building, and launching new products and features, establishing engineering processes, conducting code reviews, and collaborating with Product and Design. Requires at least 1 year of mobile development experience, proficiency in Kotlin and Compose, and experience launching apps or widely used features. Nice-to-haves include React/TypeScript, backend experience (Python, Flask, SQL), and familiarity with MVVM, coroutines, flows, Gradle, OpenAPI, Buildkite. Role is available in the US (HQ in New York and San Francisco) and remotely in the US and Canada; Ramp also lists benefits for the UK.

Join SELECT by DoiT as a Senior Software Engineer working remotely in the Americas (ideal: Canada, Mexico, Colombia; also US). Responsibilities include architecting and building cost management features, reusable UI components, data visualizations, data pipelines and dbt models, and improving application reliability and performance. Required skills include full‑stack development and strong English communication; tech stack examples: TypeScript, React, Next.js, Tailwind CSS.

Procurify seeks a Staff Backend Engineer (remote within Canada) with 10+ years' experience to drive technical strategy and architecture, design and implement scalable RESTful APIs and backend services using Python/Django, work with MySQL and cloud infrastructure (AWS, Kubernetes, Terraform), participate in CI/CD (CircleCI), mentor engineers, and resolve performance and reliability issues. Listed base salary range: 160,000–200,000 CAD per year.

Procurify seeks a Senior Full Stack Engineer with 5+ years' experience to design, develop, and ship end-to-end features using Python/Django and TypeScript/React. Responsibilities include scalable backend services, reusable accessible UI components, database schema design, code quality, system architecture, and observability. The role expects experience with AWS, Kubernetes, Terraform, MySQL, CI/CD (CircleCI), and knowledge of LLMs, prompt engineering, RAG, and vector DBs.

Senior, hands-on Staff Product Engineer (Ruby on Rails). Remote role owning hard PRs and end-to-end product areas (billing, enterprise auth, API, dashboard, infra), responsible for performance, security, mentoring via code review, and shipping production Rails code. Fluent English and prior Stripe/billing experience required.

SearchApi seeks a remote Ruby Engineer to build and maintain web-scraping integrations and browser automation (CDP), tackle anti-bot evasion, optimize concurrency, and support production systems at scale. The role involves debugging production issues, reverse engineering protections, contributing across the stack (Ruby on Rails, PostgreSQL, Redis, Sidekiq), customer-facing support, and improving monitoring and infrastructure (Terraform, AWS, Prometheus, Grafana).

Remote role to design and implement greenfield proxy infrastructure: high-performance reverse proxies, IP rotation and session management, IP reputation tracking, geo-targeting and monitoring. Requires deep TCP/UDP and protocol knowledge (HTTP/HTTPS/SOCKS5, HTTP/2/3), Linux networking experience, prior experience building proxy or networking infrastructure, fluent English and a BSc or equivalent technical degree.

SearchApi seeks a remote Anti-Bot Engineer to research and implement anti-bot evasion, reverse engineer detection systems (Cloudflare, Akamai, DataDome, PerimeterX, etc.), optimize Playwright/Puppeteer/CDP configurations, debug TLS/protocol fingerprinting (JA3/JA4, HTTP/2, HTTP/3/QUIC), analyze network traffic, and run headless browsers reliably at scale. Fluent English and deep hands-on experience with browser internals, fingerprinting, network analysis tools, and relevant tooling (Playwright, Puppeteer, Selenium, Wireshark, Burp Suite, mitmproxy) are required.

Lead and own design, implementation, and maintenance of backend services for KYC workflows, sanctions screening, alert management, and regulatory reporting. Role is remote (United States or Canada) with periodic travel to San Francisco/Berkeley (~twice per quarter). Requires a minimum of 7 years of backend engineering experience; Golang proficiency is a significant advantage.

Quora is hiring a remote Staff Machine Learning Engineer to work on recommendation systems (feed, notifications, digest emails, A2A) for the Quora product. The role requires taking end-to-end ownership of ML systems (data pipelines, candidate extraction, feature engineering, model training, production integration) and collaborating with other engineers. Minimum requirements include 5+ years professional software development experience in ML and 3+ years working on recommendation systems; US salary range provided: $219,989 - $320,613 USD per year.

Quora is hiring a Senior Machine Learning Engineer (remote) for its distribution team to improve ranking models and recommendation systems (feed, notifications, digest emails, A2A). Responsibilities include end-to-end ownership of ML systems (data pipelines, candidate extraction, feature engineering, model training, production integration). Minimum: 3+ years working on recommendation models, strong ML mathematical foundations, and experience building end-to-end ML systems. Coordination hours are Mon–Fri 9am–3pm PT. US applicants: salary range listed as $189,507–$274,603 USD per year.