Backend jobs in missouri

O'Fallon, Missouri

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Today

Key Responsibilities Build scalable, domain-driven microservices using GoLang and Python FastAPI, integrating backend APIs with mobile SDKs to establish a reliable orchestration layer Develop and maintain cloud-native backend services supporting payment orchestration and digital service integration Deploy and operate cloud-native services on AWS ECS, Fargate, and ARM64 architecture using AWS Graviton Provision and automate infrastructure using AWS CloudFormation and Terraform Build and inte

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Contract

DOE

Backend Developer - Node JS/ TypeScript / React / AWS

Remote

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6d ago

Position: Senior Backend Developer Node.js / TypeScript / React / AWS Company : Yottaflex AI Technologies Location: Remote Employment Type: Contract Duration: 612 Months (Potential Extension) Job Description We are looking for a highly experienced Senior Full Stack Developer with strong hands-on Node.js and TypeScript backend development experience to design, develop, and deploy scalable enterprise applications. The ideal candidate must be backend-strong while also having solid experience with

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Contract, Third Party

Depends on Experience

Senior AI Platform Backend Engineer

Missouri

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Today

Strategic Staffing Solutions is currently looking for a Senior AI Platform Backend Engineer, a W2 contract opportunity. This is a W-2 contract opportunity, and candidates must be able to work on our W-2 only. NO C2C or 1099. Senior AI Platform Backend Engineer Employment Type: W2 Only (No C2C or 1099) Duration: 12-month contract with a possibility to extend Location: St. Louis, Missouri Schedule: Hybrid-3 days per week; 1 day must be a Monday and Friday. Interview: first round via Teams, second

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Contract

USD0 - USD0

Backend Engineer- Node.js

Remote

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2d ago

Key Responsibilities Design, build, test, deploy, and operate cloud-native backend services, APIs, workflows, and integration capabilities.Implement business logic, orchestration services, domain services, event-driven patterns, and service composition required by project workstreams.Develop integrations with enterprise systems, third-party platforms, data services, pricing/underwriting capabilities, and AI/agent services.Leverage AI coding agents and engineering copilots to accelerate developme

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Contract

$70

*Senior Full Stack Engineer (Backend focused - Nodejs, Javascript, AWS exp.) - W2 role

Remote

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3d ago

Kellton Tech is a full-service software development company, offering end-to-end IT solutions, strategic technology consulting and product development services in Web, SMAC (Social, Mobile, Analytics, Cloud), ERP-BPM, and IoT space Our methodology of inventing infinite possibilities with technology helps us develop best in-class and cost effective solutions for our clients. Currently Kellton Tech is looking for talented resources for one of our listed client. Below are the position details Posi

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Contract, Third Party

Depends on Experience

Staff Backend Engineer | Distributed Systems

Remote

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15d ago

Hiring: Staff Backend Engineer | Distributed Systems We are looking for a highly experienced Staff Backend Engineer with12+ years of software engineering experience in designing and building scalable backend services and distributed systems. Key Skills & Technologies: Python, FastAPI or equivalent backend frameworks Apache Kafka & event-driven architectures Microservices, REST APIs & distributed systems AWS / Azure, Docker & Kubernetes PostgreSQL, Redis & NoSQL databases System design, sca

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Contract

Depends on Experience

AI Backend Engineer, Artificial Intelligence (AI) Required, Work From Home - G

Remote

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Today

AI Backend Engineer, Artificial Intelligence (AI) Required, Work From Home We are looking for talented AI Backend Engineers to build systems that power AI-driven decisioning, automation, and orchestration across our platform. This role sits at the core of our AI stack, between models, backend systems, and real users, where latency, correctness, reliability, and cost directly impact production experience. This is a fully remote position where you will be part of a global engineering team workin

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Full-time

$140,000 - $200,000

Backend Software Engineer - Python & Pipeline Orchestration (Cloud / AI Platform)

Remote

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Today

Backend Software Engineer - Python & Pipeline Orchestration (Cloud / AI Platform) W2 Contract Pay Rate: $60 - $70 per hour Location: Cupertino, CA - Remote Role Job Summary: We are seeking a highly skilled Backend Software Engineer to join our platform engineering team focused on building scalable data and machine learning pipeline orchestration services within our internal cloud ecosystem. This role sits at the intersection of backend engineering, data platforms, and infrastructure, enabli

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Contract

$60 - $70 per hour

Java Backend Engineer

Remote

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7d ago

Role Summary As a Software Engineer - Java Backend (Tech Lead), you will serve as a hands-on technical leader responsible for end-to-end service architecture, delivery outcomes, and ensuring the reliability of backend systems. You will define and communicate technical direction, influence cross-functional teams, and drive modernization initiatives. This role requires expertise in cloud-native development, event-driven architectures, and leadership in engineering excellence within a remote envir

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Third Party, Contract

Depends on Experience

Senior Java Backend Developer

Remote

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9d ago

Senior Java Backend Developer Location: Remote must work Pacific Time (PST/PDT) hours Experience: 8+ years Employer: ZAPCOM Role Overview ZAPCOM is seeking a Senior Java Backend Developer to support a client engagement. The ideal candidate will have strong hands-on experience building scalable backend services, developing REST APIs, and delivering reliable applications in a distributed environment. Key Responsibilities Design, develop, and maintain backend applications using Java and Spring Boo

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Full-time

100,000 - 130000

Staff Backend Engineer - Prompt Security (Node.js / TypeScript)

Remote

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Today

Our Purpose At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find

Full-time

USD 156,000.00 - 215,000.00 per year

Principal Backend Engineer - Music Discovery Platform - Roon

Remote or New York, New York

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Today

A Career at HARMAN As a technology leader that is rapidly on the move, HARMAN is filled with people who are focused on making life better. Innovation, inclusivity and teamwork are a part of our DNA. When you add that to the challenges we take on and solve together, you'll discover that at HARMAN you can grow, make a difference and be proud of the work you do every day. About the Role At Harman International, we are revolutionizing music metadata management and discovery. We're seeking a Princi

Full-time

USD 125,250.00 - 183,700.00 per year

Remote Backend Engineer

Remote

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Today

Remote Backend Engineer Our client, a growing enterprise technology organization, is seeking a Backend Engineer to build and operate core APIs, services, orchestration layers, integrations, and business capabilities. This role combines strong software engineering discipline with modern AI-assisted development practices to deliver secure, scalable, resilient services from design through production operation. Key Responsibilities: Design, build, test, deploy, and operate cloud-native backend ser

Full-time

USD 60.00 - 76.00 per hour

Staff Backend Software Engineer - Platform Enablement

Remote

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Today

Vacancy Name Staff Backend Software Engineer - Platform Enablement Vacancy No VN442 Status Active Location Remote US Location Country United States Location Region Location City Description Who are we? Auction Technology Group (ATG) is transforming the multi-billion-dollar global auction industry. Our platforms connect thousands of auction houses with buyers in over 170 countries, powering more than $15 billion in annual sales. Through innovative online auction technologies, we help aucti

Full-time

USD 209,000.00 per year

Senior Lead Software Engineer, Backend

Remote

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Today

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It's transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. We're not waiting for the future to arrive. We're shaping it, one bold step at a time. To those who see AI as a driver of progress, come build the

Full-time

USD 160,700.00 per year

Senior Software Engineer, Backend | Audit Product Team

Remote

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Today

Machinify is a leading healthcare intelligence company with expertise across the payment continuum, delivering unmatched value, transparency, and efficiency to health plan clients across the country. Deployed by over 85 health plans, including many of the top 20, and representing more than 270 million lives, Machinify brings together a fully configurable and content-rich, AI-powered platform along with best-in-class expertise. We're constantly reimagining what's possible in our industry, creatin

Full-time

USD 200,000.00 - 230,000.00 per year

Software Engineer III: Backend C#

Remote

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Today

Jack Henry, provides advanced bill payment and money transfer solutions to banks and credit unions. We offer modernized smart technology, including AI driven, security, cloud-based software, and fraud monitor, to deliver engaging payment solutions to customers. Our solutions help financial institutions to meet the payment expectations of today and the payment innovation needs of tomorrow. Payments become smarter, engaging, and predictive with Payrailz. We are looking for a software engineer who

Full-time

Backend Engineer

Remote or Austin, Texas

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Today

Backend Engineer: On behalf of our technology client, Procom is searching for a Backend Engineer for a permanent role. This position is a remote position based in Austin, Texas. Job Description: As a Backend Engineer, AI, you will be responsible for owning the inference and orchestration layer that powers every AI interaction in the product. You will build and operate production systems that turn model capability into fast, stable, observable APIs used across mobile and desktop clients. Resp

Full-time

Backend Software Developer

Remote

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Today

Description & Requirements The Software Developer (Backend) provides subject matter proficiency for our USAF mission. This role is responsible for providing analytical skills to support process improvement, specialized studies, and definition of requirements. Shall perform engineering tasks for back-end design and development efforts including, but not limited to, developing back-end architectures to support current and new system capabilities and integrations, RESTful API development and modifi

Full-time

USD 120,000.00 per year

Back End Developer

Remote or Baytown, Texas

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Today

Description We are looking for a Back End Developer to join a financial services team in Baytown, Texas. In this role, you will help build and support reliable web-based solutions that contribute to secure, efficient business operations. The position suits someone who can collaborate across technical teams while delivering clean, maintainable code in a fast-moving environment. Responsibilities: Design, build, and maintain server-side applications that support core business functions within a fi

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Full-time

USD 120,000.00 - 140,000.00 per year

Backend jobs in Missouri, USA