Jobs in the United States

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Added 11 mins ago
Sr Mechanical Engineer
Modular Medical Inc
San Diego, CA
As Senior Mechanical Engineer, you’ll help turn complex engineering challenges into reliable, manufacturable medical devices. You’ll take ownership of mechanical and electromechanical…
Added 23 mins ago
ES
Senior Mechanical Engineer
Eight Sleep
San Francisco, CA
- $140,000 to $200,000 USD / year
We’re looking for an experienced Senior Mechanical Engineer to develop products from concept through to production. You’ll be part of a small, mission-driven team and have significant…
Added 1 hour ago
Software Engineer II- Full-stack Developer
Deloitte
Saint Louis, MO
+ Implement agentic AI patterns - tool-calling agents, RAG pipelines, prompt chaining, and memory management - within full-stack applications under senior engineer guidance.
Added 1 hour ago
Software Engineer II- Full-stack Developer
Deloitte
Kansas City, MO
+ Implement agentic AI patterns - tool-calling agents, RAG pipelines, prompt chaining, and memory management - within full-stack applications under senior engineer guidance.
Added 1 hour ago
M
Senior Software Engineer
ManpowerGroup
St. Louis, MO
- $75 to $95 USD / hour
Our client in the banking industry is seeking a Senior Software Engineer to join their team. As a Senior Software Engineer, you will be part of the engineering organization supporting the…
Added 1 hour ago
NB
Senior Product Support Engineer II
Nautilus Biotechnology
835 Industrial Road, San Carlos, CA
- $111,000 to $162,000 USD / year
We are hiring for a Senior Product Support Engineer II to join our growing team. This role is our instrument expert in the field, installing, qualifying, and supporting Beta and, soon,…
Added 1 hour ago
Senior Quality Engineer
Lockheed Martin
Arlington, TX
Lockheed Martin is seeking a Senior Quality Engineer to support the THAAD program’s expanding production needs. This role will provide manufacturing Quality support to help ensure suppliers…
Added 1 hour ago
Senior Full Stack Java Engineer (Agentic AI)
Citigroup
Irving, TX
Role Overview : The Senior Full Stack Lead Developer is a highly experienced individual contributor within Banking technology division. This role is responsible for driving engineering…
Added 1 hour ago
A
Lead Data/AI Engineering
AT&T
Dallas, TX
- $158,200 to $237,400 USD / year
This is a full-time onsite role based in the location(s) posted and is performed from the designated work location five days per week · Certification is required in some areas
Added 1 hour ago
Senior Project Manager - Transmission and Substations
Jacobs
Dallas, TX
The energy industry is undergoing rapid transformation as utilities work to improve safety, reliability, resiliency, and sustainability. In response, Jacobs is expanding its Energy & Power…
Added 1 hour ago
Senior Consultant, Transmission Advisory
Jacobs
Dallas, TX · Houston, TX · Austin, TX · San Antonio, TX
…energy economics to provide holistic support to clients from a reliability and market perspective. Following Jacobs’ acquisition of PA Consulting, you will serve as a vital go-between and…
Added 2 hours ago
Software Engineer II- Full-stack Developer
Deloitte
Saint Louis, MO
+ Implement agentic AI patterns - tool-calling agents, RAG pipelines, prompt chaining, and memory management - within full-stack applications under senior engineer guidance.
Added 2 hours ago
Software Engineer II- Full-stack Developer
Deloitte
Kansas City, MO
+ Implement agentic AI patterns - tool-calling agents, RAG pipelines, prompt chaining, and memory management - within full-stack applications under senior engineer guidance.
Added 2 hours ago
FL
Equipment Print Technician
FLASHSHIP LOGISTICS, LLC
RICHARDSON, TX
- From $20 USD / hour
Advancement through technicians levels 1-5, leading to Senior Technician, Lead, or Engineer roles.
Added 2 hours ago
Staff Site Reliability Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Site Reliability Engineer based in the United States.
Added 2 hours ago
J
Senior Network Engineer
Jobgether
Remote, United States
- $97,500 to $162,500 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Network Engineer based in the United States.
Added 3 hours ago
Senior Software Engineer - Embedded Networking, Payload Network Software Team
Amazon Kuiper Manufacturing Enterprises LLC
Sunnyvale, CA
As a Senior software engineer you will be responsible for leading the design of embedded software used in the Project Leo products. You will work in a collaborative environment with teams…
Added 3 hours ago
Senior Machine Learning Engineer, Search & Personalization
Bask Health
Remote, United States
We're looking for a Senior Machine Learning Engineer, Search & Personalization to design, build, and improve intelligent search, discovery, and personalization capabilities across Bask…
Added 3 hours ago
Senior Machine Learning Engineer, Evaluation & Reliability
Bask Health
Remote, United States
We're looking for a Senior Machine Learning Engineer, Evaluation & Reliability to design, build, and maintain the systems that measure and improve the quality of Bask Health's AI-powered…
Added 3 hours ago
Senior Site Reliaiblity Engineer
Mirantis
Remote, United States
We are looking for a senior SRE who thinks past dashboards to the contract between a platform and its operators. The right candidate can look at raw telemetry from Kubernetes, bare metal,…
Added 3 hours ago
Senior Data Engineer - 1S6J022
SNIPEBRIDGE
Remote, United States
The Senior Data Engineer will build the trusted data foundation used to understand infrastructure performance, capacity, energy, maintenance, and business operations. The role combines…
Added 3 hours ago
Senior Systems Design Engineer - 1S6J024
SNIPEBRIDGE
Remote, United States
The Senior Systems Design Engineer will define and coordinate the integrated systems that allow critical facilities to be monitored, controlled, protected, and operated reliably. The role…
Added 3 hours ago
Senior Systems Design Engineer - 1S6J024
SNIPEBRIDGE
Remote, United States
The Senior Systems Design Engineer will define and coordinate the integrated systems that allow critical facilities to be monitored, controlled, protected, and operated reliably. The role…
Added 3 hours ago
Senior Systems Design Engineer - 1S6J024
SNIPEBRIDGE
Remote, United States
The Senior Systems Design Engineer will define and coordinate the integrated systems that allow critical facilities to be monitored, controlled, protected, and operated reliably. The role…
Added 4 hours ago
Senior Applied AI Engineer, Patient Experience
Bask Health
Remote, United States
…throughout development while maintaining high standards for reliability, testing, and software…

Sekai

Senior Backend & Cloud Infrastructure Engineer

United States

Apply on jobs.ashbyhq.com About employer

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Job details

Experience: 5+ years of backend development experience, including at least 2 years in cloud or infrastructure work.
Posting language: English
Posted: Nov 9, 2026

Original job description

Sekai is building the TikTok for mini apps - an AI-driven consumer platform where people create, remix, share, and play interactive content instantly.

We are a Series A company backed by Khosla, a16z and Mayfield, with $30M raised to date. We are remote-first across all positions and are looking for ambitious, AI-native builders who want to help shape the next generation of consumer social products.

ABOUT SEKAI

Sekai is an AI-powered consumer platform where users can create, remix, and play interactive content. We build mobile-first products at the intersection of AI, consumer social, and interactive entertainment. We are a Series A company backed by top VCs including a16z, a+, Mayfield, and Khosla, and have raised a total of $30m.

Here are Sekai’s download links:

Android: https://play.google.com/store/apps/details?id=chat.sekai.app&hl=en_US
IOS: https://apps.apple.com/us/app/sekai-create-remix-play/id6504506653

ABOUT THE ROLE

We're looking for a Backend & Cloud Infrastructure Engineer to help build and scale the systems behind Sekai. In this role, you'll work across backend development and cloud infrastructure, building high-performance APIs, supporting AI/LLM workloads, and ensuring our platform is scalable, reliable, and efficient.

You'll have end-to-end ownership, from designing core backend services to optimizing AWS infrastructure and improving overall system performance. It's a great opportunity for someone who enjoys both building products and solving complex infrastructure challenges in a fast-moving startup environment.

RESPONSIBILITIES

Backend Development

Own the architecture, development, and evolution of core backend services. Write high-quality code in Python / Go, and lead design reviews and code reviews.
Design and build high-performance, highly available RESTful / gRPC APIs that serve high-traffic consumer features and AI / LLM workloads.
Design and tune async task processing and message queues (Kafka, Celery, SQS, etc.) for throughput and data consistency.

Cloud Platform & Reliability

Plan, build, and govern our AWS infrastructure (ECS / Lambda / RDS / S3 / CloudFront / VPC, etc.), and drive Infrastructure as Code with Terraform or similar tools.
Build and improve monitoring, logging, and alerting (Datadog, CloudWatch, Sentry). Keep alerts actionable and production stable.
Lead incident troubleshooting, on-call response, and postmortems. Keep improving capacity planning, autoscaling, and disaster recovery.
Own cloud cost and security: remove idle resources, enforce least-privilege IAM, and manage multiple accounts and internal network access.

Infrastructure & Platform

Turn shared business logic into reusable services, middleware, and internal tools, and improve CI/CD so the team ships faster and more reliably.

QUALIFICATIONS

5+ years of backend development experience, including at least 2 years in cloud or infrastructure work.
Strong proficiency in Python or Go, with hands-on experience building large projects on frameworks such as FastAPI, Django, or Gin.
Solid knowledge of core AWS services, with production experience in architecture, operations, and cost optimization.
Experience with Docker and ECS / Kubernetes, and with IaC tools such as Terraform.
Strong MySQL / PostgreSQL schema design and performance tuning skills. Familiar with Redis, Kafka, Nginx, and other common middleware.
Strong production debugging skills, with on-call and postmortem experience. Good communicator who can own a project end to end, from design to launch.

PREFERRED QUALIFICATIONS

Backend experience with AI / LLM applications, such as model integration, agent systems, or managing LLM cost and reliability.
Experience supporting large-scale, high-traffic consumer products.
Multi-cloud (AWS + GCP), cloud migration, or account consolidation experience; familiarity with BigQuery or similar data platforms.
Knowledge of networking and security, such as VPN / zero trust and compliance.

BENEFITS

Top tier salary in the market + competitive equity
Full Health insurance

If you are excited about building at the frontier of AI, consumer social, and interactive entertainment, we would love to hear from you.

At Sekai, you will work with an AI-native team, move fast, own meaningful problems, and have the flexibility to explore new ideas from an early stage.

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Jobs in the United States