Source Job

$150,000–$200,000/yr
US

  • Design and build shared platform capabilities, owning architecture and delivery of reusable backend services and integrations.
  • Direct implementation by writing specifications and delegating to AI agents, stepping into code when complexity demands.
  • Engineer for reuse, compatibility, and testability, owning testing strategy and building reliability and observability into the platform.

Java Python AWS Kubernetes Distributed Systems

20 jobs similar to Senior Platform Software Engineer

Jobs ranked by similarity.

$105,777–$138,098/yr
Canada

  • Drive large, complex projects autonomously from design to launch.
  • Tackle complex architecture challenges and lead code reviews across teams.
  • Mentor engineers and partner on company-wide initiatives as a Java expert.

Atlassian builds software products like Jira, Confluence, and Trello to help teams collaborate. With a culture focused on unleashing the potential of every team, Atlassians are empowered to choose where they work and value diversity and inclusion.

Canada Unlimited PTO

  • Design and build the gateway, runtime, and evals services for AI workloads at scale.
  • Own technical decisions from design to launch, including identity, quota, and failover controls.
  • Partner with security and infrastructure teams to set guardrails for agentic workloads.

We provide clear, predictable pay-over-time financial products with no hidden fees. We are a remote-first company with an engineering culture centered on blameless postmortems and detailed technical design.

US

  • Build and operate shared AI infrastructure enabling secure access to foundation models.
  • Work on model gateways, cloud AI services, routing, observability, and governance.
  • Mentor and coach engineers, contributing to technical roadmaps and code reviews.

Aledade is a healthcare technology company that empowers independent primary care practices through value-based care. The company maintains a collaborative, mission-driven engineering culture focused on building scalable, reliable systems.

India

  • Build and maintain highly scalable, distributed systems with a focus on reliability and performance.
  • Design, develop, test, and deploy Flex platform services on AWS following microservices architecture.
  • Own services end-to-end, respond to incidents, and drive root cause analyses while collaborating with cross-functional teams.

Twilio shapes the future of communications by delivering innovative solutions to hundreds of thousands of businesses, empowering millions of developers worldwide to craft personalized customer experiences. The company is remote-first with a strong culture of connection and global inclusion, offering a vibrant team environment.

US

  • Build and operate shared infrastructure for AI platform capabilities, including model gateways and cloud AI services.
  • Shape product strategy and execution across disciplines, developing scalable and performant solutions.
  • Mentor and coach engineers, setting standards for code architecture and engineering processes.

Aledade is a healthcare technology company that empowers independent primary care practices through value-based care and accountable care organizations. The company is dedicated to improving health outcomes and supporting communities, with a collaborative and innovative culture.

US Unlimited PTO 16w maternity 8w paternity

  • Build and improve the internal platform engineers use to develop, test, deploy, and operate ngrok.
  • Treat infrastructure like software by automating operational workflows, improving reliability, and scaling systems.
  • Contribute to builder tools, deployment systems, CI/CD infrastructure, and internal abstractions.

We are an all-in-one cloud networking platform that secures, transforms, and routes traffic to services running anywhere. Trusted by more than 9 million developers at companies like GitHub, Okta, HashiCorp, and Twilio, we have a serious-software, playful-culture team.

$77,000–$107,000/yr
Poland

  • Own and deliver quarterly technical goals for the Communications area.
  • Design reliable backend services for high-volume, multi-region messaging infrastructure.
  • Collaborate with engineering partners and support on-call operations.

Affirm builds honest financial products that give people a clear, predictable way to pay over time with no hidden fees. It is a remote-first company focused on reliable, performant, and scalable engineering solutions.

India

  • You will design, develop, and maintain backend services powering Twilio Flex's high-scale TaskRouter system.
  • You will set technical direction for distributed systems, owning architecture for cross-team problems spanning multiple quarters.
  • You will raise the engineering bar through design review, code review, and mentorship of senior and mid-level engineers.

Twilio is shaping the future of communications by delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers worldwide. As a remote-first company with a strong culture of connection and global inclusion, we have a diverse team making a global impact each day.

US

  • Lead design and implementation of scalable, secure cloud infrastructure across AWS and Azure.
  • Drive architectural vision, automation, and CI/CD improvements across the SDLC.
  • Own incident response, observability, and infrastructure-as-code best practices.

Candidly is an AI-driven student debt and savings optimization platform that partners with employers and financial institutions to serve millions of Americans. It is a fully remote, high-growth Series B startup with an international team of 70+ employees.

Canada Unlimited PTO

  • Own and deliver quarterly goals, leading engineers through ambiguity and ensuring support.
  • Collaborate with product, design, and analytics to make decisions considering risks and trade-offs.
  • Support operations and availability of team artifacts while fostering quality and ownership.

Affirm provides clear, predictable buy now, pay later services with no hidden fees. It is a growing, remote-first company that values transparency, flexibility, and customer trust.

Argentina 18w maternity 12w paternity

  • Own and evolve the cloud platform including compute layer, EKS fleet, and serverless infrastructure across AWS and GCP.
  • Design and maintain infrastructure-as-code and networking layers to ensure reliability, security, and scalability.
  • Build AI-powered automation and observability tools to catch issues before customers notice.

Webflow is the agentic web marketing platform helping modern marketing teams build, manage, and optimize high-performing web experiences. Serving over 2 million users across 190 countries, the company values grit, speed, and craft.

  • Design and develop scalable, secure, and high-performance backend services using Java and Spring Boot.
  • Build and maintain cloud-native infrastructure with Terraform and Salt on AWS.
  • Leverage AI-powered development tools to accelerate delivery and improve software quality.

Everbridge is a global software company that provides critical event management and enterprise resilience solutions. The engineering culture emphasizes scalable, reliable, and AI-enabled development practices in a collaborative environment.

$180,000–$250,000/yr
North America Unlimited PTO

  • Build tooling for performance analysis and observability so teams can make data-driven decisions.
  • Partner with product, infrastructure, and security teams to solve scaling and performance challenges across boundaries.
  • Identify systemic issues, anticipate scaling bottlenecks, and raise the technical bar through design reviews and mentorship.

Turnkey builds programmable guardrails for the autonomous economy, enabling organizations to operate with autonomy and control. Founded by the team behind Coinbase Custody, the company is a small, low-ego, high-agency team of cryptography, security, and systems experts.

Canada Unlimited PTO

  • Architect and evolve Affirm's EKS platform, driving strategy across cluster lifecycle and node management.
  • Lead technical direction for cluster provisioning and upgrades through standardized Infrastructure-as-Code and self-service workflows.
  • Partner with product, SRE, and capacity teams to shape the platform and mentor engineers.

Affirm provides a clear, predictable way to pay over time, with no hidden fees and no surprises. The company is remote-first and its engineering organization emphasizes technical design review, operational excellence, and mentorship at scale.

US

  • Design, build, and operate secure, cost-efficient infrastructure in a multi-cloud environment (AWS and Azure).
  • Develop and evolve infrastructure as code for repeatable, auditable, and scalable system provisioning.
  • Partner with product and application engineering teams and participate in an on-call rotation.

Abnormal AI is an AI-native behavioral security platform protecting enterprises from advanced threats by analyzing communication and access behavior. It protects over 25% of the Fortune 500 and fosters a fast-paced, remote-first culture.

US

  • Partner with product, design, and data science to deliver reliable, low-latency technical solutions.
  • Own the full software lifecycle from design docs to rollout for major infrastructure initiatives.
  • Drive engineering best practices, mentor teammates, and leverage AI-integrated tools for efficiency.

Reddit is a community of communities built on shared interests and trust, hosting open and authentic conversations. With 100,000+ active communities and ~130 million daily active users, it is one of the internet's largest sources of information.

Global

  • Own Kubernetes-based infrastructure on AWS, including CDK, Helm, and CI/CD pipelines.
  • Ship production code and improve observability, alerting, and SLOs for critical payment flows.
  • Manage security, access controls, compliance evidence, and incident response.

Caliza offers a commercial banking API for cross-border businesses, enabling multi-currency payments and fiat-stablecoin conversion. The VC-backed startup's team has built infrastructure at Visa and Nubank, with a fast-moving, remote-first culture.

$136,880–$210,891/yr
US

  • Lead multi-quarter platform programs spanning cloud, CI/CD, identity, and artifact management.
  • Set technical direction through design documents and build agreement across Engineering and Security.
  • Define reliability, alerting, and on-call design while mentoring senior engineers.

PatientPoint is a digital health company that connects patients, providers, and life sciences companies at the moment of care. With a network in 35,000 physician offices and 750 million patient visits annually, it's a 2025 Best Place to Work.

US Unlimited PTO

  • Architect end-to-end sheet data platform across transactional stores and lakehouse.
  • Design services and APIs for real-time collaboration and AI agents at scale.
  • Lead petabyte-scale migrations while setting architecture standards and mentoring engineers.

Smartsheet is a SaaS platform that helps teams manage work and increasingly coordinates human teams with AI agents. It has been operating for over 20 years and fosters a culture of innovation, inclusion, and professional growth.

US

  • Design, build, and operate scalable, secure microservices powering Cyderes' security platform with minimal oversight.
  • Deploy to AWS, GCP, or Azure with Terraform and run containerized workloads on Docker and Kubernetes.
  • Improve automated testing and CI/CD, review code, and mentor teammates while keeping security in mind.

Cyderes builds practical Identity & Access Management (IAM), Exposure Management, and risk programs, providing Managed Detection & Response (MDR) powered by its Meridian entity fabric. It is a Great Place to Work-Certified global team that helps organizations stop active threats fast with people, platforms, and perspectives.