Senior Software Engineer II
As a Senior Software Engineer II on ActBlue's AAA (Authentication, Authorization, and Access) team, you will lead the design and implementation of secure, scalable identity and access systems for progressive fundraising platforms. You'll own architectural decisions, refactor critical systems, and collaborate with cross-functional teams to drive high-impact technical improvements that enable donors, campaigns, and organizations to access ActBlue's services securely.
Senior Software Engineer, Core Frameworks
Toast is seeking a Senior Software Engineer to join its Core Frameworks team, responsible for building and maintaining core libraries and tools that empower developers company-wide. The role involves leading complex projects, integrating AI into developer workflows, and mentoring peers to enhance productivity and software quality.
Staff Software Developer
As a Staff Software Developer on the Enablement team at PENN Entertainment, you will lead the design and architecture of foundational platform capabilities, including GraphQL APIs, event-driven systems, and regulatory compliance tooling. You will collaborate with engineering teams to optimize performance, mentor engineers, and ensure scalable, reliable solutions for customer-facing applications like theScore and Hollywood Casino.
Staff Software Developer
The Staff Software Developer will lead the design and architecture of foundational platform capabilities for PENN Entertainment's digital products, including theScore, theScore Bet, and Hollywood Casino. The role focuses on building scalable, reliable systems such as a Federated GraphQL API, event-driven architecture, and regulatory compliance tooling while mentoring engineers and optimizing distributed systems.
8tr Senior Software Engineer (Full-Stack)
Software Mind is seeking a Senior Full Stack Software Engineer to join their Customer Experience team. The role involves producing high-quality, performant code, contributing to technical decisions, and mentoring peers through code reviews and pair programming. The position requires proficiency in Java/Kotlin, Elixir/Ruby, TypeScript, React, and cloud services like AWS Lambda.
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Software Backend Engineer
As a backend-focused Software Engineer at Sardine, you will design, build, and maintain scalable APIs and services for a fraud prevention and AML compliance platform. The role involves collaborating with engineering and product teams to deliver high-value features while contributing to the company's engineering culture and technical roadmaps.
Design Engineer
The role involves owning the intersection of design and engineering to build and ship user-facing experiences from concept to production. Responsibilities include designing and developing AI agent builder flows, operational dashboards, process analysis viewers, and integration setup wizards using React and TypeScript.
Senior Full-Stack Engineer (react/node/TypeScript) - Technology
The Senior Full-stack Engineer will join the Growth Team to build scalable product features for a leading SaaS platform with hundreds of thousands of users. Responsibilities include developing and maintaining full-stack applications, collaborating with engineering and product stakeholders, and contributing to roadmap execution.
Senior Full-Stack Engineer (react/node/TypeScript) - Technology
This Senior Full-stack Engineer role involves building scalable product features for a leading SaaS platform with hundreds of thousands of users. The engineer will work across frontend and backend systems, contribute to roadmap execution, and collaborate with engineering and product stakeholders while ensuring high-quality, maintainable code.
Senior Full-Stack Engineer (react/node/TypeScript) - Technology
The Senior Full-stack Engineer will join the Growth Team to build scalable product features for a leading SaaS platform. Responsibilities include developing and maintaining full-stack applications, shipping new features, collaborating with stakeholders, and mentoring other engineers while working with cloud-based infrastructure and CI/CD workflows.
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Senior Full-Stack Engineer (react/node/TypeScript) - Technology
The Senior Full-stack Engineer will join the Growth Team to build scalable product features for a leading SaaS platform. Responsibilities include developing and maintaining full-stack applications, collaborating with stakeholders, and mentoring junior engineers while contributing to high-impact projects for a platform with hundreds of thousands of users.
Senior Full-Stack Engineer (react/node/TypeScript) - Technology
The Senior Full-stack Engineer will join the Growth Team to build scalable product features for a leading SaaS platform. Responsibilities include developing and maintaining full-stack applications, collaborating with engineering and product stakeholders, and contributing to roadmap execution for a platform serving hundreds of thousands of users.
Senior Full-Stack Engineer (react/node) (Backend-focused) - Real Estate - Dominican Republic/remote
This role is for a Senior Full-Stack Engineer to join a high-impact fintech-focused engineering team building resilient, scalable, and data-intensive systems. The position requires deep expertise across the full stack, from designing PostgreSQL schemas and distributed backend services to delivering polished React/Next.js user experiences. The ideal candidate will work with financial workflows, asynchronous event processing, and high-stakes transactional data in a fast-paced environment with strong ownership.
Senior Full-Stack Engineer (react/node) (Backend-focused) - Real Estate - Brazil/remote
A Senior Full-Stack Engineer role focused on backend systems for a tech-powered real estate company. The position involves designing scalable, event-driven architectures, optimizing PostgreSQL databases, and building resilient financial workflows using React/Next.js and Node.js. The role requires deep expertise in distributed systems, reliability engineering, and compliance with SOC2/PCI-DSS standards.
Senior Full-Stack Engineer (react/node) (Backend-focused) - Real Estate - Mexico/remote
This role is for a Senior Full-Stack Engineer to join a high-impact fintech-focused engineering team building resilient, scalable, and data-intensive systems. The position requires deep expertise across the full stack, including designing PostgreSQL schemas, distributed backend services, and delivering polished React/Next.js user experiences. The ideal candidate will work on complex financial workflows, asynchronous event processing, and high-stakes transactional data in a fast-paced environment with strong ownership.
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Senior Full-Stack Engineer (react/node) (Backend-focused) - Real Estate - Colombia/remote
A Senior Full-Stack Engineer role focused on backend systems for a tech-powered real estate media company. The position involves designing scalable event-driven architectures, optimizing PostgreSQL databases, and building resilient financial workflows using React/Next.js for the frontend. The role requires deep expertise in TypeScript, Node.js, and reliability engineering, with opportunities to work autonomously on high-impact projects.
Senior Full-Stack Engineer (react/node) (Backend-focused) - Real Estate - LATAM
A senior full-stack engineer role focused on building resilient, scalable, and data-intensive systems for a fintech-powered real estate platform. The position requires deep expertise in TypeScript, Node.js, React, Next.js, and PostgreSQL, with responsibilities spanning database design, distributed backend services, and polished frontend development. The role emphasizes reliability engineering, financial workflows, and modern AI-assisted development practices.
8tr Senior Software Engineer
This Senior Software Engineer role at Software Mind focuses on backend services, internal tooling, and web applications for shoppers and operators. The role involves developing high-quality, performant code, contributing to technical decisions, and collaborating with product, design, and engineering leadership.
Backend Platform Software Engineer
This role focuses on maintaining and improving core backend systems, libraries, and internal developer tooling at Top Hat. The ideal candidate will enhance system performance, reliability, and architectural integrity while collaborating with other developers to ensure the platform remains efficient and scalable.
Senior Software Engineer, Identiy
As a Senior Software Engineer on the Identity team at Sanity.io, you will design and build core authentication and authorization infrastructure, including OAuth 2.0, OIDC, SAML/SSO, and JWT flows. This role involves owning distributed systems at scale, ensuring security-first principles, and shaping the identity layer for AI and agentic workflows across the platform.