Source Job

$140,000–$190,000/yr
US 4w PTO

  • Design, develop, and maintain Node.js and TypeScript services for account creation, identity verification, and funding orchestration.
  • Build event-driven processing with message queues, pub/sub, and streaming pipelines to move applicant data between internal systems and providers.
  • Ensure correctness in long-running workflows through idempotency, retry semantics, and operational tooling for inspecting and replaying stalled flows.

Node.js TypeScript SQL Kubernetes

20 jobs similar to Sr. Software Engineer II, Platform/API

Jobs ranked by similarity.

Unlimited PTO

  • Design, develop, and maintain RESTful and event-driven APIs that integrate with internal and external systems and warehouse devices.
  • Collaborate with front-end and mobile teams to deliver end-to-end features and optimize complex SQL queries in a large distributed system.
  • Ensure scalable debugging, monitoring, and defect resolution while fostering trust and accountability within the team.

Fabletics is a fashionable, innovative, and inclusive active lifestyle brand. It has been recognized as a Great Place to Work for multiple consecutive years, with a culture that values innovation, female leadership, diversity, and work-life balance.

India

  • Own features end-to-end from technical design through implementation, testing, deployment, and ongoing production support.
  • Develop and optimize APIs, backend services, and distributed microservice architectures.
  • Deploy, monitor, and support applications running in Kubernetes, including Helm charts, CronJobs, autoscaling, and production troubleshooting.

H1 provides a platform that informs every doctor interaction globally, using data and AI to unlock medical insights and improve patient outcomes. The company fosters a collaborative, mission-driven culture with a focus on innovation and scaling their platform.

US

  • Develop scalable platforms and services to support Rula's Revenue Cycle Management operations.
  • Apply strong software engineering fundamentals and product thinking to solve complex operational challenges.
  • Collaborate with engineering, operations, and business stakeholders to improve efficiency and reliability.

Rula is a mental healthcare company dedicated to treating the whole person and making mental health an integral part of overall well-being. They are a remote-first team with a culture that values diversity, equity, and inclusion.

Global 4w PTO 16w maternity 16w paternity

  • Design and build high-quality, scalable systems and shared libraries that multiple engineering teams depend on.
  • Partner deeply with product engineering teams to understand their needs and translate them into clean, well-documented APIs and services.
  • Drive technical decisions and influence architecture across team boundaries, with a focus on developer experience and platform scalability.

Vanta helps businesses earn and prove trust by automating security monitoring and compliance. The company has a kind and talented team with offices in SF, NYC, London, Dublin, Tel Aviv, and Sydney.

US Unlimited PTO

  • 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.

$4,792–$5,495/mo
Georgia 6w PTO

  • Design, build, and maintain clean, efficient, and scalable backend services in Node.js and TypeScript.
  • Develop new product features from concept to deployment, collaborating closely with product managers and frontend engineers.
  • Own key parts of our backend architecture, making critical decisions that enhance performance, reliability, and security.

Fundraise Up is a global fundraising platform that makes donating to nonprofits fast and accessible. The company has 160+ product professionals, including 80+ engineers, and fosters a culture of technical curiosity and knowledge sharing.

US Unlimited PTO

  • Own and drive the evolution of subscription and payment platforms, building foundational systems and APIs for customer-facing experiences.
  • Lead new feature development for subscription growth, monetization, and business expansion.
  • Make architectural decisions, improve system reliability and scalability, and provide thoughtful code reviews.

GameChanger builds the first and best platform to experience youth sports moments, helping families elevate the next generation. They are a remote-first, dynamic tech company based in New York City, solving the biggest challenges in youth sports today.

US Unlimited PTO

  • Architect and evolve backend APIs, services, event-driven workflows, and data models supporting millions of users.
  • Lead ambiguous technical initiatives from discovery through production, improving reliability and performance.
  • Partner with cross-functional teams and mentor engineers to raise the quality bar across the organization.

TeamSnap is a sports and communication platform dedicated to taking the work out of play in youth sports. They have been remote-first since 2009 and are named to Outside Magazine's 'Best Places to Work' and Built In's '100 Best Remote-First Places to Work.'

US

  • Design and build event-driven backend services in Node.js/TypeScript for scalable AI workloads in healthcare.
  • Lead microservices architecture decomposition and define service boundaries for independent deployment.
  • Drive test-driven development practices and collaborate with cross-functional teams to deliver reliable systems.

VetsEZ specializes in developing advanced software solutions for federal government projects, with a focus on healthcare technology. The company values remote collaboration and offers professional development opportunities.

European Union

  • Design and build scalable, high-performance backend systems for digital health products using TypeScript and Node.js.
  • Develop RESTful APIs, integrate third-party services, and implement secure authentication with JWT and OAuth.
  • Collaborate across teams, contribute to architecture and CI/CD, and leverage AI-assisted development tools.

Our partner is a digital health technology company creating meaningful impact for patients worldwide. They offer a high-growth, international, and diverse environment where engineers have meaningful ownership.

US

  • Build and maintain scalable platforms and services that support payments, claims submission, and operational workflows for the Revenue Cycle Management team.
  • Apply strong software engineering fundamentals and product thinking to solve complex operational challenges and improve efficiency.
  • Collaborate closely with engineering, operations, and business stakeholders to enhance reliability and cost-effectiveness across critical business functions.

Rula is a remote-first mental healthcare company dedicated to making mental health care accessible and evidence-based. They are a growing team that values diversity, equity, and inclusion, and they aim to empower individuals to take charge of their mental well-being.

Global

  • Develop new features and components, refactoring, debugging, and maintaining software.
  • Perform peer code reviews and unit/integration testing.
  • Participate in SAFe Agile ceremonies, architecture discussions, and technical documentation.

Sigma Software helps pharmaceutical companies and researchers accelerate medicine development through modern computational modeling solutions. The company operates as part of an international distributed team that values collaboration, quality, and engineering standards.

US Unlimited PTO

  • Implement changes to our API and SDK to facilitate server/client communication and improve developer experience.
  • Identify and improve inefficiencies within our backend codebase to enhance performance and scalability.
  • Participate in designing critical parts of the system as it scales, collaborating with peers both inside and outside the team.

GameChanger builds digital platforms that empower youth sports communities by providing tools for scheduling, communication, and live game streaming. The company is a remote-first, dynamic tech team based in New York City, focused on innovation and collaboration.

Bulgaria 5w PTO

  • Be part of a cross-functional product team, working closely with Software Engineers, Product Management, UX, and other specialists.
  • Design, build, and evolve Advanced Tables capabilities using TypeScript, React, and Atlassian Forge.
  • Build new integrations with Jira and other cloud data sources, working with REST APIs and different data formats.

Appfire creates software that empowers teams to collaborate seamlessly. We are a team of 800+ employees working remotely across 28 countries.

Global

  • Develop complex, scalable full-stack solutions using Node.js, React, and TypeScript.
  • Implement automated testing (TDD), CI/CD, and best engineering practices in a cross-functional team.
  • Collaborate with UI/UX designers to build exceptional data products ensuring usability and technical excellence.

SunnyData is a leading Databricks technology partner that empowers customers with scalable architectures, data engineering pipelines, and ML/AI applications. The company is committed to diversity and inclusion, and offers opportunities for career growth in a collaborative culture.

Hungary

  • Design and implement backend services and APIs for the Digital Construction Support platform.
  • Collaborate with product owners and architects to develop new features and ensure code quality.
  • Mentor junior developers and participate in agile ceremonies to drive continuous improvement.

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group, providing a wide portfolio of IT and telecommunications services with more than 5,300 employees. The company has been recognized as Hungary's most attractive employer and is looking for skilled IT professionals to join its team.

Global

  • Participate in brainstorming sessions about software development and architecture.
  • Develop, deploy and test Node.js based micro-services based on a set of requirements.
  • Participate in code review of other fellow developers and provide support.

tawk.to is the world’s #1 business messaging application, building systems at scale like search, concurrency, and real-time metrics. We are a small, globally distributed team with a friendly culture and career growth opportunities.

Belgium

  • Design robust APIs and data models for payroll concepts like workers, absences, and payslips.
  • Build reliable integrations with external payroll systems using asynchronous processing, queues, and idempotent syncing.
  • Run part of the stack on Windows Server VMs in Azure, fully provisioned with Terraform.

Payflip is building a salary platform that creates transparency and trust around compensation, empowering employees and HR teams. They are a fresh, fast-growing startup with a close-knit team of engineers, product specialists, and business developers, fostering a culture of transparency, eagerness to learn, and ownership.

Global Unlimited PTO 16w maternity 16w paternity

  • Set technical strategy and direction for critical platform surface areas.
  • Design and evolve the APIs, primitives, and self-service golden paths.
  • Build secure, well-documented, scalable backend services and developer tooling.

Vanta helps businesses earn and prove trust by automating security monitoring and compliance. The company has a kind and talented team and is growing rapidly.

Canada 6w PTO

  • Deliver full-stack features end to end, from backend services through to the user interface.
  • Build and maintain software installed and run reliably on customer premises, including in constrained environments.
  • Own your technical decisions and communicate trade-offs clearly to the team and stakeholders.

Qohash protects the most sensitive data held by governments and regulated enterprises, on their premises, without ever moving or copying it. It is a foundational piece of Canada's digital sovereignty, built by small teams that ship.