127 backend developer jobs at 90 companies in Oak Park, IL

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
1mo
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Backend / Frontend Developer Intern
Chicago, Illinois, United States
OnsiteInternship
Prospect Equities
Prospect Equities: Provides residential and commercial real estate brokerage and leasing services.
0+ YOEInternship seeking motivated, detail-oriented students skilled in frontend or backend development.
JavaScript, TypeScript, React, REST APIs, AWS, PostgreSQL, MongoDB, Elasticsearch, Java, Spring Boot, JUnit, AWS
3w
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Backend Engineer, Flag Delivery
Oakland or San Francisco or New York City or Boston or Seattle or Irvine or Los Angeles or Monterey or Santa Barbara or Santa Rosa or Austin or Portland or Philadelphia or Chicago or United States
$146k-$235k/yr OnsiteFull Time
LaunchDarkly
LaunchDarkly: Provides a feature management platform for software development teams.
5+ YOE5+ years backend engineering experience building/operating production distributed systems; strong programming in Go/Java/Rust; production debugging, observability, on-call experience; clear AI usage in engineering work.
Go, Java, Rust
2w
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Senior Backend Engineer - Java
United States or Tampa or Boston or Atlanta or New York City or Columbus or Chicago or Philadelphia or Raleigh or Charlotte or Minneapolis or Dallas or Washington D.C. or Austin or Miami or Newark
$152k-$194k/yr RemoteFull Time
Real
RealNasdaq: REAX: Technology-driven brokerage offering residential real estate and title services.
8+ YOE8+ years experience with Java/Spring Boot, JPA/Hibernate, relational databases; experience designing event-driven microservices, strong testing practices, AI-assisted development familiarity, BA/BS or equivalent.
Java 17, Java 21, Spring Boot 3.x, JPA/Hibernate 6, Postgres, Kafka, DynamoDB, Redis, OpenSearch, AWS, Docker, Kubernetes, Datadog, ArgoCD, TeamCity, Claude Code, Cursor, Codex, Model Context Protocol (MCP), GitHub, SonarQube
3w
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Staff Backend Engineer, Safety
United States or San Francisco or Los Angeles or New York City or Chicago
$217k-$304k/yr RemoteFull Time
Reddit
RedditNYSE: RDDT: Social platform for community-driven discussion and content sharing.
8+ YOE8+ years software development experience; proficiency in Go, Python, Rust, or Ruby; experience with GraphQL/REST/HTTP/Thrift/gRPC; BS in Computer Science or equivalent practical experience; strong organizational and cross-functional remote collaboration skills.
Go, Python, Rust, Ruby, GraphQL, REST, HTTP, Thrift, gRPC
1w
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Lead Backend Software Engineer
Chicago, Illinois, United States
$185k-$215k/yr RemoteFull Time
SITE Technologies
SITE Technologies: Provides AI-powered property condition assessments and management software.
7+ YOE7+ years backend experience with strong Python skills, hands-on technical leadership, experience with FastAPI, relational data modeling, PostgreSQL/ORMs, AWS services, CI/CD, and mentoring engineers.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
1d
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Sr. Backend Software Engineer (NodeJS)
United States or Minneapolis or Philadelphia or New Hartford or Austin or Champaign or Chicago
$140k-$160k/yr RemoteFull Time
PAR Technology
PAR TechnologyNYSE: PAR: Provides unified software and hardware for restaurant operations.
8+ YOEExpertise in Node.js/Typescript and PostgreSQL, 8+ years backend experience with distributed systems, GraphQL, TypeORM, Nest.js; familiarity with Kubernetes, message brokers, AWS, Terraform.
Typescript, NodeJS, Ruby, Rails, PostgreSQL, GraphQL, TypeORM, Nest.js, RabbitMQ, RMQ, React, AWS, Terraform, Helm, Kubernetes, EKS, Microsoft Teams
1d
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Senior Backend Engineer, Platform, Consumer Apps - Klover
Chicago or Redwood City
HybridFull Time
Attain
Attain: Provides real-time purchase data and measurement solutions for marketers.
5+ YOE5+ years building backend services; experience with Rust or Go, SQL, microservices, gRPC/protobuf or GraphQL, message queues (Kafka/RabbitMQ), cloud (AWS/GCP/Azure); familiarity with payments, security and compliance.
Rust, Go, gRPC, protobuf, GraphQL, SQL, Kafka, RabbitMQ, AWS, GCP, Azure
2w
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Senior Platform Backend Engineer - Battery Storage
San Francisco or Houston or Chicago or Seattle or New York City or Palm Beach or Birmingham or United States
$150k/yr RemoteFull Time
Plus Power
Plus Power: Develops and operates standalone battery energy storage systems.
5+ YOE5+ years platform/backend/data/platform engineering experience; strong AWS, Terraform, Docker/Kubernetes, Python, CI/CD, and observability experience; experience with data platforms and relational databases.
Python, AWS, VPC, IAM, EKS, ECS, RDS, S3, Terraform, CloudFormation, Docker, Kubernetes, CI/CD, Git
1mo
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Software Engineer (Backend), Content Foundations
San Francisco or Atlanta or Austin or Boston or Chicago or Dallas or Denver or Houston or Jacksonville or Los Angeles or Mexico City or Miami or New York City or Ottawa or Phoenix or Portland or Sacramento or Salt Lake City or San Diego or Seattle or Toronto or Vancouver or Washington, D.C.
$104k-$187k/yr HybridFull Time
Scribd
Scribd: Subscription-based digital library for e-books, audiobooks, and documents.
4+ YOE4+ years as a software engineer; backend/data pipelines; comfortable with messy data; proficient in Ruby, Python, or Go; AWS experience; SQL; collaborative and communicative.
Ruby, Python, Go, AWS, S3, SQS, SNS, SQL
3w
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Staff Back End Engineer, Trading
Chicago or New York City or Los Angeles or San Francisco or Culver City or Dallas
$200k-$285k/yr RemoteFull Time
Altruist
Altruist: Provides a digital custodian and portfolio management platform for advisors.
8+ YOE8+ years software engineering experience, 2+ years building low-latency trading systems, BA/BS preferred, proficient with Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes, strong leadership and communication.
Java, Spring Boot, Microservices, AWS, Postgres, Kubernetes
3w
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Senior Backend Java Engineer (Chicago Hybrid)
Chicago, Illinois, United States
$130k-$150k/yr HybridFull Time
Motorola Solutions
Motorola SolutionsNYSE: MSI: Provides mission-critical communications and public safety technology.
5+ YOEBachelor's degree with 5+ years engineering experience, 4+ years Java, GCP and Postgres experience, experience with Anthropic Claude/LLMs, and U.S. citizenship able to obtain security clearance.
Java, Python, GCP, GKE, Cloud Run, Cloud Storage, AlloyDB, PostgreSQL, Anthropic Claude, LLMs, RAG systems, AI coding assistants
1w
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Senior Software Engineer - Backend
Chicago, Illinois, United States
$120k-$150k/yr RemoteFull Time
Allied Benefit Systems
Allied Benefit Systems: Administers self-insured health benefit plans for employer organizations.
7+ YOE7+ years building production backend systems; expertise in C#/.NET, API design, scalable architectures, relational databases, cloud deployment; bachelor's in CS/IT or equivalent.
C#, .NET, ASP.NET Web APIs, .NET Core, Entity Framework Core, SQL Server, MySQL, Azure, AWS, GCP, Terraform, Azure DevOps
1mo
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Sr. Backend Dev – Java/Spring Boot, Angular, Cloud - TX
Texas or Chicago or New York City
$44k-$154k/yr HybridFull Time, Contract
Photon: A digital modernization services firm that builds and operates digital experiences for large enterprises.
5+ YOE5+ years software development experience; strong Java and Spring Boot skills, Angular, cloud (GCP/Azure), CI/CD, RESTful APIs/microservices, data structures and algorithms; 3+ years building APIs; ability to lead technical decisions and mentor engineers.
Java, Spring Boot, Angular, GCP, Azure, CI/CD, RESTful APIs, Microservices, Kafka, Pub/Sub
2mo
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Senior Software Engineer, Backend Services
Chicago, Illinois, United States
$150k-$170k/yr HybridAll Commitments Available
University of Chicago
University of Chicago: Provides higher education and conducts academic research.
5+ YOESenior Python engineer with 5-7 years in large-scale systems, building SaaS/PaaS, and data management experience.
Python, FastAPI, Flask, PostgreSQL, SQL, REST, AWS, Docker, PySpark, Kafka, OpenSearch, Elasticsearch, Lustre, GPFS, VAST, Parquet, S3, Security: OAuth2, SAML, OpenID Connect
1mo
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Staff Software Engineer-Backend
Chicago, Illinois, United States
$175k-$215k/yr OnsiteFull Time
Cameo
Cameo: Connects fans with celebrities for personalized video messages and interactions.
10+ YOE10+ years backend experience with Node.js, distributed systems, NoSQL (MongoDB), event-driven architectures (Kafka/Confluent), AWS, security, API design, mentoring, and AI tooling experience.
Node.js, Express, MongoDB, Kafka, Confluent, REST, AWS, Claude Code, Cursor
1mo
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IS Technical Specialist (Backend Java Dev)
Columbus or Austin or Chicago or Dallas or Houston or Akron or Detroit or Indianapolis or Minneapolis or Cincinnati or Cleveland
$70k-$140k/yr OnsiteFull Time
Huntington
HuntingtonNASDAQ: HBAN: Provides regional commercial, consumer, and mortgage banking services.
5+ YOE3+ MgmtBachelor's degree; 5+ years Java/WebSphere/REST API experience; Fuse, Spring Boot, GCP, Kafka, JSON; DevOps/CI/CD; container-based development; cloud deployment; strong SQL; microservices; leadership of development teams.
Java, WebSphere, REST APIs, Spring Boot, Fuse, GCP, Kafka, JSON, DevOps, CI/CD, containers, Jenkins, Kubernetes, Oracle, MySQL, Bigtable, MongoDB, Cloud SQL, GCP, JAX-RS, Swagger, Git, SVN, Maven, Terraform, BigQuery
1mo
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Sr. Software Engineer, Backend - NT Connect
Chicago, Illinois, United States
$100k-$150k/yr HybridFull Time
NinjaTrader
NinjaTrader: Provides futures brokerage services and a trading software platform.
8+ YOE8+ years backend software development; JVM languages (Java/Scala/Kotlin); REST/WebSocket APIs; Kubernetes/GCP; security best practices; strong problem-solving; AI tooling experience.
Java, Scala, Kotlin, REST, WebSocket, Kubernetes, GCP, OpenTelemetry, CI/CD, GitHub Copilot, Pub/Sub, Node.js
2d
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Lead Software Engineer - Backend
McLean or Chicago
$179k-$225k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOE1+ MgmtBachelor's degree and 4+ years software engineering experience, 1+ year cloud experience, proficiency in Java/Python/Go/Node/Scala, cloud and container technologies, and people management experience preferred.
Java, Python, SQL, Node, Go, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
1mo
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Lead Software Quality Engineering, Backend
Chicago, Illinois, United States
$150k/yr OnsiteFull Time
Prolaio
Prolaio: Providing a clinical intelligence platform for precision cardiology.
8+ YOE8+ years in backend testing or software development; strong automation, cloud backend, data validation, and regulatory compliance experience.
Python, Kotlin, Java, SQL, BigQuery, Cassandra
3mo
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Python Developer IV
Webster or Chicago or St Petersburg or Phoenix or Tempe
$111k-$175k/yr HybridFull Time
Paychex
PaychexNASDAQ: PAYX: Provider of integrated payroll, HR, and benefits outsourcing solutions.
5+ YOE5+ years backend software development; Python/Django; AWS; REST APIs; PostgreSQL/MySQL; Docker; CI/CD.
Python, Django, REST, Celery, Redis, AWS, EC2, S3, RDS, Lambda, CloudWatch, PostgreSQL, MySQL, Docker, Kubernetes, Jenkins, GitHub Actions