62 back end developer jobs at 43 companies in Illinois
1mo
Save
Mark Applied
Hide
Backend Engineer
California or Colorado or Georgia or Idaho or Illinois or Kansas or Massachusetts or Maryland or Michigan or Minnesota or New Jersey or New York or Ohio or Oregon or Pennsylvania or Rhode Island or Texas or Washington
$180k-$220k/yr RemoteFull Time
5+ YOE5+ years in data/software engineering, experience with large-scale data processing, advanced SQL, Python/OOP, cloud platforms, and infrastructure-as-code (Terraform).
Apache Spark, Databricks, Flink, Beam, Python, SQL, AWS, Azure, Google Cloud, Terraform
1w
Save
Mark Applied
Hide
Senior Backend Engineer
Chicago or Milwaukee or Atlanta or Jacksonville
$123k-$209k/yr HybridFull Time
5+ YOE5+ years of software engineering experience preferred, with Java, Spring Boot, Micronaut, RESTful APIs, microservices, PostgreSQL, Redis, AWS, Kubernetes, and Docker experience.
Java, JavaScript, TypeScript, RESTful APIs, Spring Boot, Micronaut, PostgreSQL, Redis, AWS, Kubernetes, Docker, Jenkins, Git, Jira, Confluence, Temporal, ActiveMQ, ReactJS
1mo
Save
Mark Applied
Hide
Senior Backend Engineer
Chicago, Illinois, United States
$110k-$140k/yr OnsiteFull Time
5+ YOE5+ years backend engineering experience; strong Go and Python skills; JavaScript/TypeScript desirable; experience with microservices on AWS or GCP, Docker/Kubernetes, Git, CI/CD, streaming platforms (Kafka/Kinesis/MQTT), and SQL/NoSQL databases; BS/MS preferred.
Go, Python, JavaScript/TypeScript, AWS, GCP, Docker, Kubernetes, Git, CI/CD, Kafka, Kinesis, MQTT, SQL, NoSQL
1w
Save
Mark Applied
Hide
Senior Backend Engineer, Safety
United States or San Francisco or Los Angeles or New York City or Chicago
$191k-$267k/yr RemoteFull Time
5+ YOERequires 5–8 years of software development experience, proficiency in Go, Python, Rust, or Ruby, API design experience, cross-functional collaboration, and a bachelor's degree in computer science or equivalent experience.
Go, Python, Rust, Ruby, GraphQL, REST, HTTP, Thrift, gRPC
2mo
Save
Mark Applied
Hide
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
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
2mo
Save
Mark Applied
Hide
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
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
3w
Save
Mark Applied
Hide
Lead Back End Engineer
Chicago, Illinois, United States
$165k-$180k/yr HybridFull Time
10+ YOE10+ years of software engineering experience; strong Go or equivalent-language experience; hardware, firmware, Linux, LLM, mentoring, architecture, testing, and technical communication skills.
Go, Linux, AWS, LLMs
5d
Save
Mark Applied
Hide
Java Backend Developer - Chicago
Chicago, Illinois, United States
$34k-$121k/yr OnsiteFull Time, Contract
Requires 10+ years of Java/J2EE development experience, Java and Spring expertise, microservices, REST/SOAP, databases, messaging, cloud, Docker, Kubernetes, CI/CD, Git, and Agile/Scrum skills.
Java, J2EE, Spring Framework, Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Spring Cloud, REST APIs, SOAP, Hibernate, JPA, Oracle, SQL Server, PostgreSQL, MySQL, Kafka, RabbitMQ, ActiveMQ, AWS, Azure, Google Cloud, Docker, Kubernetes, Jenkins, GitHub Actions, Azure DevOps, GitLab CI, Git, Agile, Scrum, MongoDB, Cassandra, DynamoDB, Splunk, ELK, Grafana, Prometheus, OAuth2, JWT, SQL, NoSQL
3w
Save
Mark Applied
Hide
Knowledge Engineer Manager - Back-end Engineer
Seattle or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York City or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$80k-$294k/yr HybridFull Time
5+ YOEMinimum 5 years in knowledge graph hydration, ontology mapping, graph and relational databases, vector databases, Python or Java, and REST API development; bachelor's degree or equivalent experience required.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL APIs, D3.js, Cytoscape.js, Terraform
1mo
Save
Mark Applied
Hide
Senior Backend Software Engineer
Arkansas or California or Colorado or District of Columbia or Florida or Illinois or Massachusetts or Maryland or Maine or Michigan or New Jersey or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia or Washington
$165k-$195k/yr RemoteFull Time
5+ YOE5+ years backend development experience with Python and FastAPI, strong backend architecture, relational modeling, AWS services, Docker, CI/CD, and cross-team communication.
Python, FastAPI, PostgreSQL, SQLAlchemy, Alembic, Flyway, AWS, ECS, Lambda, RDS, S3, IAM, Docker, Git, CI/CD, GitHub Actions, AWS CodePipeline, Claude Code, Cursor, Terraform, Terragrunt, Datadog, Sentry, LangGraph, Claude Code SDK, Amazon Bedrock
2mo
Save
Mark Applied
Hide
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
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
1w
Save
Mark Applied
Hide
Principal Backend Engineer – Music Discovery Platform - Roon
New York or Illinois or Florida or Tennessee or Oregon or Kentucky or Connecticut or Kansas or California or Colorado or Missouri or Idaho or Arizona or Minnesota or Montana or Massachusetts or Indiana or District of Columbia or Michigan
$125k-$184k/yr RemoteFull Time
10+ YOE10+ years developing backend services; proficiency in Node.js, Python, or Go; expertise in APIs, microservices, cloud platforms, Docker, Kubernetes, databases, and CI/CD; leadership and mentoring experience.
Node.js, Python, Go, GCP, AWS, Azure, Docker, Kubernetes, PostgreSQL, BigQuery, Kafka, RabbitMQ, C#, .NET
2w
Save
Mark Applied
Hide
Knowledge Engineer Manager - Back-end Engineer
United States or Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek
$80k-$294k/yr HybridFull Time
5+ YOERequires 5+ years in knowledge graphs, ontology mapping, R2RML, graph and relational databases, vector databases, Python or Java, REST APIs, and a bachelor's degree or equivalent.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL, D3.js, Cytoscape.js, Terraform
2w
Save
Mark Applied
Hide
Senior Backend Software Engineer
Chicago or San Francisco
OnsiteFull Time
3+ YOERequires 3–6+ years of software engineering experience, TypeScript, Node.js, REST API design, external-system integration, AI-driven systems experience, strong communication, and Chicago location with 20–30% travel.
TypeScript, Node.js, REST API
3w
Save
Mark Applied
Hide
Senior Backend Software Engineer - Cloud (55446)
Vernon Hills, Illinois, United States
$108k-$126k/yr HybridFull Time
8+ YOE8+ years professional software development experience with C#/.NET, backend systems, APIs, integrations, relational and NoSQL databases, cloud-native solutions and production support.
C#, .NET, PostgreSQL, RavenDB, SQL Server, Microsoft Azure, Azure Functions, App Services, Azure SQL, Storage, Key Vault, Service Bus
1mo
Save
Mark Applied
Hide
Lead Software Engineer, Back End
Chicago, Illinois, United States
$179k-$205k/yr OnsiteFull Time
4+ YOEBachelor's degree, 4+ years software engineering experience, 1+ year cloud experience, proficiency in Java/Python/SQL/Node/Go/Scala, experience with Docker/Kubernetes and AWS, strong communication and critical thinking.
Java, Python, SQL, Node, Go, Scala, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud
1mo
Save
Mark Applied
Hide
Senior Backend Engineer, Platform, Consumer Apps - Klover
Chicago or Redwood City
HybridFull Time
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
1mo
Save
Mark Applied
Hide
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
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
3w
Save
Mark Applied
Hide
Sr. Backend Engineer (Golang/Distributed Systems) - US/Canada
Illinois or Canada or United States
RemoteFull Time
5+ YOERequires 5+ years of backend engineering experience, advanced Golang and Node.js, Kafka, GCP, Kubernetes, Redis, MongoDB, microservices, APIs, concurrency, and system design expertise.
Golang, Node.js, JavaScript, TypeScript, Apache Kafka, Google Cloud Platform (GCP), Kubernetes, Redis, MongoDB, RESTful, GraphQL, LLMs
1mo
Save
Mark Applied
Hide
Senior/Staff/Principal Backend Engineer, Platform & Data Ingestion
San Francisco or New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Louisiana or Massachusetts or Minnesota or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Washington or District of Columbia
$150k-$236k/yr HybridFull Time
4+ YOE4+ years building scalable APIs, microservices, and high-volume ETL; experience with Scala/Elixir or typed languages, OpenSearch/Elasticsearch, OCR/document parsing, SQL and data modeling; strong communication skills.
Scala, Elixir, Java, C#, C++, OpenSearch, Elasticsearch, OCR, Postgres, MySQL, Databricks, Snowflake, BigQuery, AWS, GCP, Amazon SQS, Kafka, Google PubSub, TypeScript, Angular, React
Explore Jobs
Expand Your Job Search
Top Cities in Illinois for Back End Developer
- Back End Developer jobs in Chicago, IL
- Back End Developer jobs in Aurora, IL
- Back End Developer jobs in Rockford, IL
- Back End Developer jobs in Joliet, IL
- Back End Developer jobs in Naperville, IL
- Back End Developer jobs in Springfield, IL
- Back End Developer jobs in Peoria, IL
- Back End Developer jobs in Elgin, IL
- Back End Developer jobs in Waukegan, IL
- Back End Developer jobs in Champaign, IL
- Back End Developer jobs in Cicero, IL
- Back End Developer jobs in Bloomington, IL
- Back End Developer jobs in Arlington Heights, IL
- Back End Developer jobs in Evanston, IL
- Back End Developer jobs in Schaumburg, IL
- Back End Developer jobs in Bolingbrook, IL
- Back End Developer jobs in Decatur, IL
- Back End Developer jobs in Palatine, IL
- Back End Developer jobs in Skokie, IL
- Back End Developer jobs in Des Plaines, IL