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US

  • Lead architecture and development of Keeper Commander, including Python and .NET SDKs, CLI tooling, and automation.
  • Own technical direction and execution while coding, debugging, and mentoring a small engineering team.
  • Partner with Product, Security, QA, and engineering to build secure, reliable SDKs and integrations for enterprise DevOps.

Python .NET API Design SDK Development DevOps

20 jobs similar to Senior Software Engineer, Developer Tools & SDKs

Jobs ranked by similarity.

Canada

  • Provide technical and operational leadership for a Security Operations Center, monitoring threats and driving incident response.
  • Design and develop security tools and platforms to improve detection, response, and operational efficiency.
  • Mentor early-career engineers and contribute to open source security projects and industry conferences.

Jobgether uses AI-powered matching to help candidates find jobs. The company operates a fully distributed, remote-first environment with in-person team events.

Portugal

  • Design and implement scalable .NET services and REST APIs that power commerce and payment capabilities for LastPass customers worldwide.
  • Deliver payment gateway integrations and regional payment method support, expanding reach and reliability for LastPass subscribers.
  • Contribute to planning, design, and feature delivery in close collaboration with a cross-functional engineering team.

LastPass delivers Secure Access Essentials, helping individuals and organizations manage and protect access to AI, applications, and credentials. Trusted by more than 100,000 businesses and millions of users worldwide, it blends strong security with everyday simplicity.

$170,000–$235,000/yr
US

  • Design and implement backend services for licensing, entitlements, feature access, and usage limits across NodeZero's product and APIs.
  • Build and evolve provisioning, admin experience, MSP/MSSP capabilities, and audit logging for a multi-tenant SaaS platform.
  • Operate production services with monitoring, incident response, and a high bar for design quality and test coverage.

Horizon3 is a fast-growing, remote cybersecurity company that helps organizations proactively find, fix, and verify exploitable attack vectors through its NodeZero autonomous pentesting platform. The team is a fusion of former special operations cyber operators and startup engineers, fostering a culture of respect, collaboration, ownership, and results.

US

  • Own and re-architect our CI/CD pipeline end to end across .NET, Python, and Svelte ecosystems.
  • Build internal tooling engineers adopt because it's better, and attack flaky tests and slow feedback loops.
  • Instrument delivery metrics with DORA to drive decisions and improve local development and onboarding.

Filevine is a Legal AI company delivering Legal Operating Intelligence for legal work, unifying data, documents, workflows, and teams in one platform. It is a rapidly growing technology company recognized by Deloitte and Inc. for innovation and growth, with a culture of exceptional collaborators.

$110,000–$117,000/yr
Canada Unlimited PTO

  • Design, build, and scale payment processor integrations, including retries and reconciliation.
  • Build user-facing features end-to-end, from database models to APIs to UI components.
  • Lead incident response and ensure PCI-DSS compliance, while using AI coding tools to accelerate development.

Practice Better is an all-in-one platform for health and wellness practitioners to run their businesses and care for clients. Founded in 2016, it is now a leading EHR platform trusted by tens of thousands of practitioners across 70+ countries, with a remote-first team based in Toronto.

$204,500–$330,700/yr
US

  • Lead the SDK team building and maintaining 35+ open-source SDKs and the Relay Proxy.
  • Own prioritization across the SDK portfolio, balancing feature work, maintenance, and customer escalations.
  • Guide technical tradeoffs across languages and platforms and represent engineering with stakeholders.

LaunchDarkly provides a platform for modern software delivery, enabling developers to release features faster with safety controls. The company values humility, openness, collaboration, and respect, and is an equal opportunity employer.

US

  • Build AI agents and automation workflows to transform manual operational processes into reliable, production-ready systems using Azure, .NET, C#, Python, and SQL.
  • Design orchestration, human-in-the-loop, and evaluation infrastructure for agentic applications, including RESTful APIs, CI regression gates, and observability.
  • Partner with end users and stakeholders to identify automation opportunities and deliver secure, compliant, and accessible AI-powered services.

Blueprint is a technology solutions firm headquartered in Bellevue, Washington, with teams across the United States, helping organizations solve complex challenges through AI, cloud, data, and product development. The culture is built on high standards, ownership, mutual support, and a commitment to delivering exceptional work while expanding skills and perspectives.

$104,390–$119,793/yr
Canada

  • Orchestrate complex multi-LLM workflows and define AI-native coding best practices.
  • Develop broad solutions that add value across the ecosystem while managing technical debt.
  • Mentor engineers and collaborate with stakeholders to shape product roadmaps and refine the SDD framework.

PR Newswire Canada, a Cision company, empowers organizations with media intelligence and communication solutions. As part of the global leader serving over 75,000 companies, it fosters an inclusive, collaborative culture where diverse perspectives drive innovation.

$229,000–$270,000/yr
Global Unlimited PTO

  • Lead technical vision for NodeZero's defensive agents, setting direction alongside AI researchers.
  • Write production code weekly, mentor engineers, and drive design and code reviews.
  • Own the technical strategy for autonomous remediation, from architecture to shipped features.

Horizon3 is a remote cybersecurity company focused on autonomous pentesting and attack path remediation. The team is a fusion of former Special Operations cyber operators, startup engineers, and security practitioners, with a culture of collaboration, ownership, and results.

$108,000–$140,000/yr
US

  • Design, implement, and maintain internal tooling for acquiring and parsing recaptured underground data.
  • Build and deploy cloud infrastructure using Infrastructure as Code technologies.
  • Collaborate with the research team to support targeting and collection of new data sources.

SpyCloud transforms recaptured darknet data to disrupt cybercrime. They have over 250 cybersecurity experts and foster a collaborative, innovative culture.

$170,000–$180,000/yr
US

  • Manage and oversee complex software development initiatives, coordinating multiple development efforts supporting web services, software deployment, and partner framework integrations.
  • Lead Agile sprint teams in planning, prioritizing, and delivering software features in alignment with project requirements and organizational goals.
  • Oversee system and software architecture development, modernization of transaction monitoring and sanction screening systems, and full-cycle web application development.

Convera is a financial technology company that provides payment solutions, foreign exchange, and transaction monitoring services for high-volume operations. It supports a remote work culture and offers comprehensive global benefits to employees.

Brazil

  • Lead full-stack development with .NET and Angular, including supervising and critically reviewing AI-generated code.
  • Implement and orchestrate AI development tools like OpenAI APIs and GitHub Copilot to structure AI-driven workflows.
  • Build scalable RESTful APIs, responsive Angular 19+ UIs, and apply SOLID principles, Design Patterns, and automated tests.

CI&T helps large enterprises transform AI potential into real business impact with AI deployment and tech-integrated business solutions. With 30 years of experience, the company has 8,000 employees across more than 25 countries, fostering a collaborative and innovative culture.

$72,000–$120,000/yr
Global

  • Develops flexible, maintainable solutions using guidelines, requirements, and standard practices.
  • Participates in planning and user story analysis while demonstrating an understanding of user requirements.
  • Reviews, modifies, and enhances existing systems by fixing issues, remediating security vulnerabilities, and improving performance.

Pathward is a financial empowerment company that works with innovators to increase financial availability, choice, and opportunity for all. We are a team of problem solvers and innovators who celebrate our differences and know that our unique perspectives make us stronger and well-positioned for success.

$173,000–$259,600/yr
US

  • Design, prototype, and deploy technical controls to close high-impact abuse vectors.
  • Translate empirical attacker evidence into precise technical requirements and control specifications.
  • Collaborate with cross-functional teams to run experiments and build regression testing suites.

Stripe is a financial infrastructure platform for businesses, enabling millions of companies to accept payments and grow revenue. It is a large company with a mission-driven culture focused on increasing the GDP of the internet.

Canada

  • Use AI coding agents and AI-assisted platforms extensively in day-to-day product engineering, including design, testing, debugging, and code reviews.
  • Build and maintain scalable, serverless, cloud-native SaaS capabilities using C#/.NET and Microsoft Azure technologies.
  • Contribute to architecture, CI/CD, release readiness, and ownership of critical product components in an Agile SCRUM environment.

Quest Software builds the foundation for enterprise AI with solutions in data governance, cybersecurity, and platform modernization. More than 45,000 companies, including 90% of the Fortune 500, trust Quest, and its culture emphasizes inclusion, flexibility, and professional growth.

Global

  • Lead the design and implementation of multiple significant technical initiatives while staying hands-on in code and architecture.
  • Provide technical direction that balances short-term delivery against long-term sustainability across teams.
  • Mentor engineers across the department, including senior engineers, and act as a quality gatekeeper through code review and testing.

Vantage is the first unified platform purpose-built for retail media orchestration, enabling enterprise retailers to activate onsite, offsite, and in-store advertising. With a global presence in North America and Asia-Pacific, the company is trusted by leading retailers like The Home Depot and fosters a remote-first culture.

US 13w maternity 13w paternity

  • Design, build, and operate services powering the Exposure Management platform across the full production lifecycle.
  • Work with large volumes of security data to improve scanning, asset discovery, and vulnerability prioritization.
  • Collaborate with product, threat research, and client-facing teams to turn security requirements into production-ready features.

They build an external attack-surface and Exposure Management platform that helps organizations discover internet-facing assets and prioritize vulnerabilities. They foster a collaborative, curious engineering culture with an AI-first approach to security and scale.

Canada

  • Drive adoption of AI-first software development practices across the project team.
  • Build scalable, cloud-native SaaS capabilities using C#/.NET and Microsoft Azure technologies.
  • Use AI coding agents extensively for design, testing, refactoring, and troubleshooting.

Quest Software builds the foundation for enterprise AI with solutions in data governance, cybersecurity, and platform modernization. More than 45,000 companies trust Quest to solve their most critical IT challenges, supported by a global team of innovators and an inclusive culture.

$175,000–$240,000/yr
US

  • Serve as the primary technical advisor for enterprise customers throughout the evaluation, adoption, and expansion of the cybersecurity platform.
  • Lead impactful demos, presentations, and technical storytelling for technical and executive audiences.
  • Partner with internal teams and partners to accelerate revenue, drive product feedback, and support Proof of Concepts.

TrendAI is the global AI security leader and enterprise business unit of Trend Micro, securing identities, infrastructure, and data. Trusted by large enterprises and governments in 185 countries, it fosters a diverse, multicultural workforce.

Global

  • Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub.\n- Enhance observability, CI/CD pipelines, and engineering standards to ensure reliable production systems.\n- Collaborate with engineers, designers, and reviewers to modernize platforms and see your work reach millions globally.

Mozilla Corporation is a non-profit-backed technology company that has shaped the internet for over 25 years, known for products like Firefox. With over 225 million monthly users, we're a mission-driven organization committed to making the internet better for people, funded by the Mozilla Foundation.