Senior Backend Jobs

Experienced senior engineer needed to build and operate scalable backend services and API integrations for a leading solar design and sales platform in a fully remote role.

WHOOP is hiring a Senior Backend Engineer to build secure, scalable pipelines and APIs that transform external health records into actionable insights for members.

Build and maintain scalable backend and full-stack features for an industry-leading solar design and sales platform as a senior engineer on a fully remote team.

WHOOP is hiring a Senior Software Engineer on the AI Platform team to design and scale backend services and developer tools that enable Generative AI across the product portfolio.

Senior Software Engineer (remote) to build and maintain APIs and scalable services for an industry-leading solar sales and design platform.

Lead the development of backend services and API integrations for a remote-first solar design and sales platform, helping accelerate clean energy adoption.

Experienced backend-focused full‑stack engineer wanted to lead and architect critical AI-native security features for Abnormal AI’s Adaptive Classifications Team.

dMetrics seeks a Senior Backend Engineer to design and implement high‑throughput Java services and data pipelines that power a production ML/NLP analytics platform.

At Handshake, the Senior Software Engineer (Backend Platform) will drive platform-scale improvements — from Elasticsearch tuning and CI pipeline redesign to developer tooling — to help the company scale its AI-era career network.

WHOOP is hiring a Senior Fullstack Software Engineer to develop scalable AI platform features and seamless member experiences from frontend interfaces to backend APIs.

Constructor seeks a Senior Backend Engineer to design and operate low-latency, high-throughput Attribute Enrichment and Badges services that deliver ML-generated item attributes to global e-commerce customers.

Lead backend development for Bumble's Dating product by building scalable GCP-native services, driving projects end-to-end, and mentoring junior engineers.

Senior Full-Stack Engineer needed to build scalable backend systems and configurable automation for a seed-stage startup enabling NP-owned primary care practices.

YouVersion seeks a pragmatic Platform Senior Engineer to design, build, and support reliable backend APIs and services that enable external partners and scale with the ministry's mission.

Inclusive & Diverse

Transparent & Candid

Growth & Learning

Collaboration over Competition

Strava is hiring a Senior Server Engineer II to build and operate scalable backend services for subscriptions and payments as part of a hybrid, cross-functional Subscriptions Team in San Francisco.

Lead backend engineering for core product services—feeds, ranking, realtime, and financial systems—at a small, product-focused startup that values ownership and strong engineering judgment.

Allata is looking for a Senior Software Engineer ready to transition into Data Engineering to design and build scalable data pipelines and platforms using modern cloud technologies.

Lead the backend engineering of Rebuy's billing and payments platform—driving architecture, CodeIgniter modernization, and secure API development using PHP and Go for a fully remote U.S./Canada team.

High-impact founding engineering role building AI-native, production-grade legaltech infrastructure for a seed-funded startup seeking a bilingual (EN/ES) backend-first senior engineer in Miami or NYC.

Turnitin is hiring a Principal Backend Software Engineer to lead architecture and implementation of high-scale serverless backend services (AWS Lambda, DynamoDB) for the Grading and Feedback platform in a remote-first environment.

Lead the engineering efforts to build and operate scalable, secure backend services and APIs that safeguard user data and enhance platform reliability for a high-impact remote product team.

The Senior Backend AI Engineer will design and deliver production Python backends that integrate LLMs and agentic systems to power autonomous, low-latency data pipelines into ClickHouse and BigQuery.

Senior Software Engineer needed to design and operate scalable, secure backend services and drive product-critical initiatives for a fast-moving platform company (remote in the US).

HeyMilo seeks a scrappy, product-focused senior engineer (ex-founder or equivalent startup background preferred) to rapidly prototype and ship end-to-end solutions that directly impact revenue.

Senior Full Stack Engineer to lead design and implementation of scalable prescription-processing systems that improve pharmacy automation and patient outcomes at Alto/FuzeRx (a Fuze Health company).

Senior Software Engineer to design and build backend microservices, APIs, and data pipelines for Nearmap's insurance applications within a fast-moving, collaborative engineering organization.

Dispel seeks a Senior Backend Engineer to architect, implement, and operate secure, high-performance networked services across cloud and infrastructure layers.

A senior backend engineer role focused on building scalable, secure production services and leading technical initiatives across APIs, performance, and reliability for a consumer-facing platform.

Hungryroot seeks a Senior Search Engineer to lead design and implementation of our OpenSearch-based hybrid search platform and improve product discovery with strong relevance, vector search, and production reliability skills.

Goodie AI is hiring a Senior Software Engineer to lead full‑stack development of its AI Lab platform, building scalable front‑end and back‑end systems and improving deployment workflows.

Phonely is hiring a Senior Backend Engineer to build and run Python-based real-time voice AI systems from its San Francisco office.

Senior Software Engineer needed to design and build C#-based microservices and REST APIs at Emburse, contributing to a cloud-first platform that modernizes finance operations.

Pattern is hiring a Senior Software Engineer to lead back-end development and build high-performance APIs and AI-enabled automation for its ecommerce acceleration platform.

Senior backend engineer needed to design and implement scalable APIs and services that support TRM’s blockchain analytics platform and product roadmap.

Senior Backend + Applied AI Engineer to build and own core backend systems and AI orchestration that deliver reliable, secure multimodal agent features for Fortune 500 customers.

Turnitin is hiring a Senior Backend Software Engineer to develop and operate scalable AWS serverless backend services that power core Assignment Workflow features for educators and students worldwide.

Experienced backend engineer wanted to design and deliver scalable cloud-native microservices at SoFi, working hybrid from Seattle with remote option within Washington.

At Wizard, help productionize LLM and ML capabilities by building scalable Python-based backend services and data pipelines that power AI-driven product features.

Mozilla is hiring a Senior Software Engineer to lead backend development for Firefox Monitor, building scalable Node.js/TypeScript cloud-native systems that protect user privacy and reliability.

Mission Driven

Collaboration over Competition

Inclusive & Diverse

Growth & Learning

Maternity Leave

Paternity Leave

Medical Insurance

Dental Insurance

Vision Insurance

Mental Health Resources

Life insurance

Disability Insurance

Health Savings Account (HSA)

Flexible Spending Account (FSA)

401K Matching

Paid Time-Off

Airbnb is hiring a Software Engineer to build and maintain backend services that power Hosts' listing creation and management on a remote-eligible Listings Backend team.

Help build scalable full‑stack products and public APIs at TRM Labs, a Series C blockchain analytics company working to secure global financial systems.

Pangram Labs is hiring a Senior Backend Software Engineer to design, build, and scale the production systems that serve its AI-detection platform in Brooklyn.

PayPal is hiring a Senior Software Engineer (Java Backend) to architect and implement scalable microservices and APIs that support critical payment systems in a hybrid work model in Austin, TX.

Palantir is seeking a Senior Backend Software Engineer to architect and implement scalable, performant backend systems that power operational data and AI products.

Palantir is hiring a Senior Backend Software Engineer to develop scalable infrastructure and APIs for Foundry and Gotham, focusing on distributed systems, storage, and performance.

Transcarent is hiring a Senior Backend Software Engineer to build high-performing backend services and APIs using Go, Python, and LLM frameworks for its generative AI-powered healthcare platform.

Lead development of the backend systems and integrations that power WHOOP's developer platform and partner ecosystem as a Senior Software Engineer on the Ecosystem team.

Senior Software Engineer (Remote) needed to drive Flutter-based mobile product development and deliver high-quality, cross-platform fitness experiences.

Kira Learning is hiring a Senior Software Engineer (Backend, Infrastructure Focus) to own and scale core backend systems, improve developer tooling, and support production reliability for AI-powered educational products.

Cadence is hiring a Senior Software Engineer to design and build scalable backend services for its AI-powered remote patient monitoring platform.