back end developer Jobs in chicago, il

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Senior Software Engineer

TAG - The Aspen Group

Chicago, Illinois, USA

Full-time

Job Description About the Company The Aspen Group (TAG) is one of the largest and most trusted retail healthcare business support organizations in the U.S. and has supported over 20,000 healthcare professionals and team members with close to 1,500 health and wellness offices across 48 states in four distinct categories: dental care, urgent care, medical aesthetics, and animal health. Working in partnership with independent practice owners and clinicians, the team is united by a single purpose: t

Backend Lead (Java, Spring Boot, MongoDB)

Master Compliance Inc

Bolingbrook, Illinois, USA

Contract

Title: Backend Lead (Java, Spring Boot, MongoDB) Onsite in Bolingbrook, IL) NOTE: LinkedIn ID is mandatory for submission. Job Description:We are seeking a Backend Technical Lead with expertise in Java, Spring Boot, and MongoDB to lead a team of developers. The ideal candidate will provide technical guidance, oversee high-quality code development, and contribute to full software lifecycle activities including design, development, testing, and deployment. Key Responsibilities:Lead and mentor a te

Sr Python Backend Engineer

Ledgent Technology

Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Python Backend Engineer Location: 100% Remote (U.S. Based) Employment Type: Direct-hire Compensation: $150,000 to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare staffing issues and administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Python Backend Engineer to help design, b

Sr Backend Engineer (TypeScript)

Ledgent Technology

Remote

Full-time

No Corp-to-Corp, No 3rd party firms . Job Title: Sr Backend Engineer (TypeScript) Location: 100% Remote (U.S. Remote) Employment Type: Direct-hire Compensation: Up to $190,000 (based on level of experience) . Partnered with a client who is creating cutting-edge AI/ML products (Generative AI) that solve healthcare administrative burdens using conversational AI and their patented voice biomarker technology. . They're seeking a skilled Sr. Backend Engineer to help design, build, and maintai

Senior Backend Engineer

Randstad Digital

Remote or Columbus, Ohio, USA

Contract

job summary: Seeking a back end engineer - this is a 100% remote opportunity! location: Columbus, Ohio job type: Contract salary: $95 - 97 per hour work hours: 8am to 5pm education: Bachelors responsibilities: Expertise in Go, Typescript, node.JSProficiency in designing efficient GraphQL API's and microservices for low latency and high availability systemStrong experience with MySQLExperience in cloud environments (AWS & Google Cloud Platform)Experience in TerraformExperience in CloudForma

.Net Backend Architect (Remote)

Neo Prism Solutions, LLC

Remote

Contract

Job Title: .NET Backend Developer with Azure Remote Job Description: We are looking for a .NET Backend Developer with experience in Microsoft Azure. The candidate should be skilled in C#, .NET Core, and building APIs. Experience with Azure services like App Services

Sr Technical Lead

Nisum

Bolingbrook, Illinois, USA

Full-time

Job Summary: We are looking for a highly skilled and technically strong Backend Lead with extensive experience in e-commerce platforms. This individual will lead a backend development team, guide technical decision-making, and work closely with cross-functional stakeholders to deliver scalable, high-performing solutions. The ideal candidate has a deep understanding of backend systems, strong problem-solving capabilities, and excellent communication skills to lead by example and collaborate

Sr Backend Node.js Engineer / Hybrid / AWS / GraphQL

Motion Recruitment Partners, LLC

Chicago, Illinois, USA

Full-time

We're hiring a Backend Node Engineer to join a fast-growing, well-funded InsureTech startup that recently secured $36M in Series B funding as it expands its U.S. engineering presence. This is a unique opportunity to be an early contributor on a high-impact team working at the intersection of real estate, insurance, and technology - all within a fast-paced, high-ownership environment. The company is building a fully digital insurance platform tailored to landlords of smaller multi-unit properties

Sr Software Engineer

Medline Industries, LP

Northfield, Illinois, USA

Full-time

Job Summary Job Description Job Title: Senior Software Engineer Location: Northfield Department: E-Commerce IT Team Employment Type: Full-Time About the Role Medline is seeking a highly experienced Senior Cloud-Native Back-End Developer to lead the design and implementation of scalable, resilient, and high-performance applications. This role is pivotal in modernizing Medline's e-commerce platform, integrating with cutting-edge SaaS solutions, and ensuring systems are designed for resiliency

Software Java backend Engineer

Marici Solutions

Remote

Contract

Title: Software Java backend Engineer Location: Remote Long Term Contract 3 round of video interview Mandatory Skills: Backend Java, microservices, Spring Boot, TDD, API, Multithreading Required skills: Spring, Spring Boot, SQL, Microservices, AWS, Backend Development, Kafka, TDD (Test Driven Development) KEY RESPONSIBILITIES Design and Development: o Design, develop, and maintain backend systems using Java (e.g., Spring, Hibernate), ensuring scalability, performance, and maintainability. o Crea

Senior React Developer (10+ Years Experience) - Remote

URSI Technologies Inc.

Remote

Third Party, Contract

Position Senior React Developer (10+ Years Experience)Location RemoteDuration 1+ Year (Extendable) Job Description: We are seeking a highly skilled Senior React Developer with over 10 years of experience in frontend development. The ideal candidate will have deep expertise in JavaScript, React.js, TypeScript, and modern UI/UX principles. You ll be responsible for leading frontend architecture, mentoring developers, collaborating with cross-functional teams, and delivering high-performance, scal

Principal Cybersecurity Engineer

NuLeap

Remote or US

Third Party

Job Summary (List Format): - Lead the design and implementation of secure, scalable, and high-performance cloud-based systems. - Architect and develop backend systems using Rust (Tokio, Actix, Axum, Rocket) and Scala (Akka, ZIO, Cats, Play). - Ensure secure execution environments utilizing WebAssembly (WASM). - Employ extensive AWS services (Lambda, ECS, S3, API Gateway, CloudFront, DynamoDB, GuardDuty, WAF, Security Hub, KMS) for cloud infrastructure and security. - Implement and enforce AP

Python Backend Engineer (React) - Remote

FlairTech Solutions

Remote

Contract

Role: Python with React Consultant Location: Remote Duration: Long Term Develop and maintain user interfaces using React.js . Design and build RESTful APIs and server-side logic using Python Experience using CI/CD tools Understanding of cloud platforms (Google Cloud Platform preferred, then Azure, then AWS) Integrate with databases (BigQuery, Spanner, MongoDB, etc)

Web Developer

Pozent

Remote or Woburn, Massachusetts, USA

Contract

6 month plus contract opportunity Remote position - CST Overview We are seeking a skilled and reliable Web Developer / Backend Engineer to provide ongoing support and project-based development across our digital ecosystem. This includes building new websites, updating existing websites, and handling server-side tasks and remediation. Familiarity with Microsoft Azure and Kentico CMS is essential. Background Our organization operates multiple web properties and digital tools hosted primarily in

Accessibility Web Developer (Mobile + Web)

Allwyn Corporation

Remote

Contract, Third Party

NOTE:This is 4 month contract only. 40 Hrs / per week. We are looking for a skilledFront-End Developerwho can contribute across bothmobile and web (.com)platforms. The ideal candidate will have hands-on experience withAngular and Ionic frameworks, and a strong understanding ofADA complianceto ensure accessibility standards are met across all digital experiences. Responsibilities: Develop and maintain responsive and accessible applications across mobile and web platforms.Collaborate with UI/UX

Software Engineer, Backend

West Coast Consulting LLC

Remote

Full-time

Job Description REMOTE JOB DESCRIPTION We're looking for a skilled Senior Backend Engineer (Contractor) to join our GraphQL API platform team. In this role, you'll focus on migrating legacy Python services to Go within our GraphQL API services. Experience with GraphQL, including GraphQL Federation and Apollo Router, is a strong plus. You'll use internal tools and processes developed by the GraphQL team to accelerate our migration from Python to Go. We're seeking someone who thrives in a fas

Backend Software Engineer

Pinterest, Inc.

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility

Software Engineer, Backend

West Coast Consulting LLC

Remote

Contract

Job Description Remote In this role, you'll focus on migrating legacy Python services to Go within our GraphQL API services. Experience with GraphQL, including GraphQL Federation and Apollo Router, is a strong plus. You'll use internal tools and processes developed by the GraphQL team to accelerate our migration from Python to Go. We're seeking someone who thrives in a fast-paced environment, excels at solving complex problems, and collaborates effortlessly across teams. Responsibilities inclu

Principal Backend Engineer, Materia AI

Thomson Reuters U.S. Inc.

Remote or Eagan, Minnesota, USA

Full-time

Principal Backend Engineer, Materia AI Are you excited about building AI-driven software that redefines how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we combine the agility and innovation of a startup with the stability and resources of a global leader. As a Lead Backend Engineer, you will play a pivotal role in developing AI-powered systems that enhance accounting workflows through automation, intelligence, and seamless orchestration. About the Role:

Senior Backend Software Engineer

Pinterest, Inc.

Remote or San Francisco, California, USA

Full-time

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility