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Remote Sr. Software Engineer (Backend)

HybridNorth AmericaSenior

Senior backend engineer at Nava, a consultancy and public benefit corporation building digital services for government agencies. You'll design, build, and deploy end-to-end systems (mainly JavaScript, Python, and DevOps) that millions of Americans rely on to access public benefits, including APIs, automation, code reviews, and on-call support.

Accessibility Agile API DevOps Java +6 skills

136K – 171K $

Remote (Senior) Software Engineer - Backend

North AmericaSenior

Senior backend engineer at OpenSC (a WWF/BCG-backed supply-chain transparency venture) who designs, builds, and scales secure web applications and APIs as the company shifts to a Python-first stack on AWS, alongside Dagster/dbt data pipelines and end-to-end ownership of testing, security, and scalability.

Agile AI API Api Design AWS +27 skills

United States Digital Space LLC

Senior Backend Software Engineer

North AmericaFull-timeSenior

Senior backend engineer on a small greenfield team building next-generation voice products — real-time SIP/RTP media, STT/TTS pipelines, deepfake detection, and conversational AI — for a Voice Intelligence Platform that protects users from spam, fraud, and scam calls. Stack: TypeScript/Node.js, Python, Kafka, Docker/Kubernetes on AWS; hybrid, 3 days/week in Seattle.

AI AWS Conversational AI Docker Kafka +4 skills

113K – 197K $

Senior Backend Software Engineer

HybridNorth AmericaSenior

Senior backend engineer at Salesforce building and scaling APIs and backend services for its multi-tenant CRM clouds (Marketing, Commerce, Service, Big Data, etc.) using Spring, gRPC and REST, with an AI-first workflow (prompt engineering, AI coding tools). Hybrid role in San Francisco, three days per week in office.

Agentic AI Agile AI API AWS +22 skills

179K – 246K $

Strategic Employment

Remote Senior Backend Software Engineer

RemoteNorth AmericaSenior

Senior Backend Engineer owning architecture and system design at an early-stage, seed-backed AI startup serving the accounting and professional services industry. Day to day: building production services in TypeScript, Python, and PostgreSQL on a self-hosted Kubernetes/Terraform stack, reviewing AI-generated code, and helping build agentic AI tooling.

Agentic AI AI Data Modeling Distributed Systems Infrastructure as Code +5 skills

150K – 180K $

Remote Senior Backend Engineer (Remote)

North AmericaSenior

Senior backend engineer at Vlipco, a payments fintech serving financial institutions in Latin America. You'll help transform a large Ruby-based payments core into a multi-region, multi-country product, building features in Ruby and JavaScript, designing APIs, improving test automation, and working with AWS (S3, DynamoDB, KMS) and serverless components.

API Api Design Automation AWS CI/CD +6 skills

Senior Go Backend Engineer - 100% Remote

North AmericaSenior

A senior Golang engineer designs high-performance backend services, tooling, and cloud-native applications, tackling latency, concurrency, and operational efficiency in a shared codebase. Core tech is Go, with strong systems knowledge and collaboration across product, design, and operations.

Cloud Cloud Native Go

Senior Backend Engineer – Remote Fintech Scale, Python

North AmericaSenior

Senior backend engineer at Alma designing APIs and backend components that power payments for merchants and consumers across Europe. The role involves end-to-end ownership of architecture and reliability in a regulated fintech environment, requiring 8+ years of backend experience, strong Python, and fluency in French and English.

API Fintech Python

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Remote Senior Backend Engineer, Care Platform Operations

North AmericaSenior

Senior backend engineer at Ro (direct-to-patient telehealth) building and scaling Python/FastAPI distributed services for the Care Platform Operations team, powering patient-provider communication, appointment scheduling, and task management workflows.

Datadog Distributed Systems Django FastAPI Observability +1 skills

179K – 212K $

Senior Backend Engineer: AI-Driven APIs & Cloud Scale

HybridNorth AmericaSenior

Builds backend services for Salesforce's Marketing, Commerce, and Sales clouds in a hybrid work model, focusing on robust APIs, data handling, and AI-driven development workflows. Core stack includes REST/SOAP/XML/HTTP APIs, Spring, gRPC, and Agile practices across multi-cloud environments.

Agile AI API Cloud gRPC +4 skills

Comcast Advertising

Senior Backend Engineer (Python or PHP) — Ad Tech at Scale

North AmericaSenior

Senior backend engineer at FreeWheel (Comcast Advertising) designing and building scalable backend services: owning API design in Python/Django, driving production deployments on AWS/Kubernetes (EKS), and mentoring junior engineers. PHP experience is also required for this ad tech role.

API Api Design AWS Django EKS +4 skills

United States Digital Space LLC

Senior Backend Engineer, Real-Time Voice & AI (Hybrid)

North AmericaFull-timeSenior

Senior backend engineer in Seattle (hybrid, full-time) on a small foundational team owning real-time voice workflows: building scalable SIP/RTP handling and latency-sensitive pipelines, integrating telephony tech on AWS with TypeScript/Node.js and Python as the core stacks.

AWS Node.js Python TypeScript

Luxtripper.co.uk

Senior Backend Engineer: Build the Engine for Dream Travel

North America, UKSenior

Luxtripper is hiring a Senior Backend Engineer to build back-office tooling, API integrations, and scalable services that enable fast quotes and personalised offers on its travel platform. The role is onsite at the London office near Aldgate East, with interviews including a pair-programming session and a chat with the CEO.

Senior Backend Engineer (Python) - Day 1 Impact, FinTech

North AmericaSenior

Senior Backend Engineer at Sadient (San Francisco) leads core product development, building REST APIs that power iOS, Android, and Web clients using Python (FastAPI), Postgres, and Redis on AWS, including integrations with cryptocurrency wallet and banking providers at real-money scale.

Android API AWS Cryptocurrency FastAPI +5 skills

Senior Backend Engineer - Java, Spring, AWS Microservices

North AmericaSenior

Software Engineer III at JPMorgan Chase building scalable, secure backend services for Business Banking products in New York. Day to day: developing Java/Spring Boot microservices on AWS with Spring Cloud, IaC, 12-factor practices, and observability via Splunk and Dynatrace.

Agile AWS Cloud Dynatrace Infrastructure as Code +5 skills

CommuniTech Recruitment Group

Senior Backend Engineer - Java/Python/C# & Microservices

North AmericaSenior

CommuniTech Recruitment Group is hiring a senior backend engineer in Boston to build scalable, distributed systems and microservices using Java, Python, or C#. The role emphasizes system design, automated testing, and mentoring, with Kafka, Kubernetes, and Azure familiarity valued; U.S. citizenship or a green card is required as no visa sponsorship is provided.

Azure C# Distributed Systems Java Kafka +4 skills

Comcast Technology Solutions

Senior Backend Engineer (Python/Django, PHP) | Cloud

North AmericaSenior

Senior Backend Engineer at FreeWheel, a Comcast company, designing and building scalable Python/Django backend services and REST APIs for its DSP advertising platform. The role owns software design, APIs, and production deployments on AWS using Kubernetes/EKS.

API AWS Django EKS Kubernetes +2 skills

Senior Backend Engineer – AI-Driven Fintech Platform

North AmericaSenior

Senior backend engineer building and scaling the platform behind Truewind's AI agent, working across backend services, APIs, cloud infrastructure, and integrations with accounting tools on a small, high-ownership team focused on reliability and correctness.

Senior Java Backend Engineer – Spring Microservices

HybridNorth AmericaSenior

Design, develop, test, and maintain enterprise Java backend applications (Spring Boot, microservices, REST APIs, databases) supporting CBP government projects. Work in an Agile team with hybrid option, based in Ashburn, VA with relocation optional.

Agile API J2EE Java Microservices +2 skills

Senior Backend Engineer, Fintech Infrastructure

North AmericaSenior

Senior backend engineer at Lead, a fintech building banking infrastructure, designing, building, and maintaining large-scale backend systems with a focus on performance and reliability. Day to day involves implementing features with product teams, mentoring engineers, and working in an AWS cloud-native environment.

AWS Cloud Cloud Native Fintech