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20 jobs similar to Senior Backend Engineer - Client integrations (USA)

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  • Develop and maintain robust, scalable backend systems using Node.js (Express and NestJS).
  • Collaborate with engineers, designers, and product managers to drive projects forward.
  • Tune and optimize database queries for maximum efficiency and performance.

ClickUp is an AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.

Europe US Canada

  • Design, implement, and maintain backend services and APIs to support applications.
  • Build and optimize data storage solutions using Postgres, ClickHouse and Elasticsearch to ensure high performance and scalability.
  • Collaborate with cross-functional teams to deliver end-to-end solutions.

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center.

  • Design, develop, and maintain RESTful APIs and microservices using Python.
  • Design and deploy cloud-native applications using AWS services including EC2, Lambda, S3, RDS, DynamoDB, and API Gateway, and IAM.
  • Implement and maintain CI/CD pipelines using GitHub Actions, GitLab CI, or AWS CodePipeline.

Miratech is a global IT services and consulting company that brings together enterprise and start-up innovation, supporting digital transformation for large enterprises. With nearly 1000 full-time professionals, they maintain a values-driven culture of relentless performance, achieving over 99% project success, and experience an annual growth rate exceeding 25%.

US Europe

  • Design, develop, and maintain clean code, ensuring top-tier performance and reliability.
  • Take full ownership of the software development lifecycle, ensuring seamless delivery and operation.
  • Design, build, test, and deploy a highly scalable and resilient system architecture.

Epistemix empowers organizations to make smarter decisions by simulating real-world outcomes using synthetic populations.

  • Design and optimize PostgreSQL + pgvector data models for high-volume, low-latency operations.
  • Architect secure, production-grade backend engines that integrate with LLMs and agent frameworks.
  • Implement system hardening, including authentication (RBAC), encryption, and secure API patterns.

Coderio designs and delivers scalable digital solutions for global companies with a product-oriented mindset and a strong technical foundation.

Latin America

  • Design and implement robust backend services using Python (Flask, FastAPI, or similar)
  • Build and maintain Python-based GraphQL servers
  • Design scalable data models using SQL databases and SQLAlchemy

EX Squared LATAM partners with innovative companies to build data-driven platforms that empower smarter decision-making. They value technical excellence, innovation, and ownership and are inclusive and people-first.

US

  • Design, develop, and maintain scalable backend services and APIs, ensuring high performance, security, and reliability.
  • Build and optimize data pipelines to ingest, store, and serve large-scale datasets, including video and ML training data.
  • Own and evolve the foundational data model that powers the entire Frontera platform.

Frontera is reimagining how children with autism and other behavioral health needs get the care they deserve. They bring together clinicians, technologists, and autism specialists to build cutting-edge AI tools that help care teams, expanding access to high-quality services for families everywhere.

  • Design, develop, and maintain scalable backend services and APIs, ensuring high performance, security, and reliability.
  • Build and optimize data pipelines to ingest, store, and serve large-scale datasets, including video and ML training data.
  • Balance rapid development of MVPs and POCs for user research with building robust, long-term backend foundations.

Frontera is reimagining how children with autism and other behavioral health needs get the care they deserve. They bring together clinicians, technologists, and autism specialists to build AI tools that help care teams work smarter and spend more time with the children and families who need them most.

Europe

  • Design, build, and maintain backend services and APIs that power core features of the Clari platform.
  • Collaborate with cross-functional teams to design scalable and maintainable solutions.
  • Contribute to improving performance, observability, and overall system reliability.

Clari is deeply committed to building an enterprise-grade platform that serves as the backbone for our customer's most critical business process - Revenue.

  • Architect, develop, and optimize scalable backend services.
  • Drive the evolution of our platform’s core infrastructure.
  • Ensure reliability, performance, and seamless integration across our ecosystem.

ClickUp is building the first truly converged AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.

US

  • Design and build scalable services and APIs for web applications.
  • Architect and maintain robust backend systems and database models.
  • Analyze product requirements and produce high-quality, production-ready code.

Solace is a healthcare advocacy marketplace that connects patients and families to experts who help them understand and take charge of their personal health.

US Canada UK Unlimited PTO

  • Design, build, and maintain web applications, APIs, backend services, and lambdas ensuring high-quality code.
  • Solve complex technical issues for merchants, partners, and internal teams, ensuring an exceptional user experience.
  • Contribute to maintaining a healthy, continuous integration and deployment process.

Loop creates confidence where commerce fails and helps merchants build businesses that last.

US

  • Maintaining and improving Linux-based VPS infrastructure.
  • Managing Dockerized services and applications, implementing automation scripts and CI/CD pipelines.
  • Contributing to backend services and APIs using Python or TypeScript.

LAULAU is an AI startup. They are building a growing technology team.

  • Design and build scalable backend systems for clinical trial recruitment platform.
  • Drive technical decisions and set technical direction for areas of ownership.
  • Maintain healthcare compliance standards (HIPAA) and implement security best practices across systems.

Trial Library is a mission-driven health technology company dedicated to improving health equity in cancer care by expanding access to precision medicine.

  • Implement and maintain API endpoints, services, and workers.
  • Write efficient and concise SQL queries for the app and data reporting.
  • Design and build systems for maximum performance, reliability, and scalability.

ClickUp created the first truly converged AI workspace, unifying tasks, docs, chat, calendar, and enterprise search, all supercharged by context-driven AI.

Unlimited PTO

  • Develop and maintain backend services primarily written in Go.
  • Build and evolve REST APIs consumed by web and mobile applications.
  • Improve system performance and reliability, especially ahead of peak usage periods.

Sierra Studio connects highly vetted Brazilian talent with growing US companies. They work closely with their partners to ensure strong alignment on expectations, culture, and technical bar.

US

  • Lead hands-on development of robust, scalable, and secure RESTful and event-driven APIs using FastAPI and OpenAPI 3.0+.
  • Own backend architecture and technical execution, serving as a primary contributor to the codebase.
  • Establish and enforce best practices for API design, versioning, documentation, and maintainability.

Truelogic is a leading provider of nearshore staff augmentation services headquartered in New York. Their team of 600+ highly skilled tech professionals, based in Latin America, drives digital disruption by partnering with U.S. companies on their most impactful projects.

Design, implement, and maintain Microservices using Go and/or Python. Design and develop cloud based software products conforming to industry best practices. Build systems, services, and tools to handle new Ocrolus products and business requirements that securely scale over millions of transactions.

Ocrolus helps lenders automate workflows with confidence by streamlining how financial institutions evaluate borrowers and enabling faster, more accurate lending decisions.

Europe Unlimited PTO

  • Architect, design, and build backend systems that transform our internal AI technology into a scalable, market-ready product.
  • Design and optimize APIs, database schemas, and data processing workflows that seamlessly integrate with our AI/ML pipelines.
  • Collaborate with the Product, Data, and Engineering teams to define technical requirements and deliver features that enhance our users’ experience and overall system performance.

Sword Health is shifting healthcare from human-first to AI-first through its AI Care platform. Sword Health has 1,000+ enterprise clients and has raised more than $500 million from leading investors.

US Unlimited PTO

Work with a cross-functional team to define and validate new features. Implement microservice endpoints using Python or Java. Write unit tests and participate in code reviews.

Canopy is a fast-growing SaaS company in South Jordan, Utah building simple, efficient software for accounting firms.