40 senior backend developer jobs at 20 companies in Baldwin, WI
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
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.
In Tandem: Provides digital tools to streamline and organize family life.
5+ YOE5+ years production backend engineering with a statically typed language, AI-native spec-driven development, experience orchestrating AI coding agents, strong systems and API design judgment.
Berlin or Chemnitz or London or Sydney or Tokyo or Prague or Minneapolis
HybridFull Time
Staffbase: Provides an AI-powered internal communications platform for employees.
5+ YOE5+ years backend experience with Go (Java/Kotlin preferred), strong problem-solving, agile experience, English communication, self-starter, collaborative.
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/yrRemoteFull Time
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
3MNYSE: MMM: Manufacturers diversified industrial, safety, consumer, and electronics products.
6+ YOEBachelor’s degree in CS or Engineering; 6+ years backend engineering; 4+ years RESTful APIs; 3+ years cloud deployment (AWS); proficient in Python/JavaScript/TypeScript.
Python, JavaScript, TypeScript, AWS, Databricks, Delta Lake
United States or Minneapolis or Philadelphia or New Hartford or Austin or Champaign or Chicago
$140k-$160k/yrRemoteFull Time
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
Senior Software Engineer - Remote Nationwide or Hybrid in MN or DC
Minneapolis or Washington
$92k-$164k/yrHybridFull Time
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
9+ YOESenior software engineer with 9+ years full-stack experience, expert in React, JavaScript/TypeScript, Node.js, Spring Boot, and CI/CD; strong backend and frontend skills; healthcare domain experience preferred.
Optimizely: Provides a SaaS platform for digital marketing and experimentation.
10+ YOEBachelor's or equivalent,10+ years software development,7+ years backend,distributed systems and SQL expertise,Java preferred,cloud-native and query engine/DSL experience.
Vizient: Healthcare performance improvement and group purchasing organization.
5+ YOE5+ years experience; strong Python or Java; experience building production backend services, cloud platforms, infrastructure-as-code (Pulumi/Terraform); data platform and ML/LLM deployment experience preferred.
Toronto or Minneapolis or Canada or North America or Europe or Africa or Asia or Australia
$93k-$165k/yrOnsiteFull Time
Dayforce: Provides cloud-based human capital management and payroll software solutions.
Senior full-stack developer with strong backend focus: C#/.NET, SQL Server, Azure, distributed systems, CI/CD, observability, experience with LLMs/AI tooling, and strong communication and mentoring skills.
C#, Microsoft .NET, SQL Server, Azure, GitHub Copilot, Cursor, Claude Code, LLMs, CI/CD
Vizient: Provides performance improvement and supply chain services to hospitals
5+ YOE5+ years experience; strong Python or Java; experience building backend services, distributed systems, cloud platforms (AWS/Azure/GCP) and infrastructure-as-code (Pulumi/Terraform); data platform and ML/LLM deployment experience preferred.
Charlotte or Fort Mill or Denver or Minneapolis or United States
$118k-$155k/yrHybridFull Time
RVO Health: Provides digital health information and consumer wellness solutions.
5+ YOEBachelor's degree or equivalent experience; 5+ years software development; 5+ years with Typescript and OOP languages (NodeJS, Golang, Ruby); 3+ years with backend frameworks (Express, Ruby-on-Rails), SQL/Postgres, ORMs (Prisma, Sequelize, TypeORM), CI/CD and IaC; software testing and AI-assisted code generation experience.
Austin or Denver or Indianapolis or Los Angeles or San Francisco or New York City or Salt Lake City or Minneapolis or Seattle or Nashville
$170k-$190k/yrRemoteFull Time
Givebutter: Fundraising and CRM platform for nonprofit organizations.
6+ YOE6+ years software engineering experience in fraud/trust & safety or adjacent domains; strong backend fundamentals, event-driven systems, stakeholder partnership, production debugging, and mentorship; payments and Stripe familiarity preferred.
TargetNYSE: TGT: Operates a chain of general merchandise stores and supermarkets.
5+ YOE5+ years software engineering experience building backend systems; hands-on production AI/LLM experience; proficiency in Python, Kotlin/Java, microservices, Kafka, PostgreSQL, container orchestration, and observability.
Kotlin, Java, Micronaut, Spring Boot, Kafka, PostgreSQL, Redis, Docker, Kubernetes, OpenTelemetry, Python, LangGraph, LangChain, CrewAI, Google ADK, Semantic Kernel, Model Context Protocol (MCP), Temporal
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOE8+ years backend-focused software development experience with Java and/or NodeJS, RESTful API design, Angular, cloud (AWS), healthcare EDI knowledge, US citizenship and ability to obtain Public Trust.
Java, NodeJS, JavaScript, TypeScript, Angular, C#, .Net, AWS, Azure, API Gateway, Lambda, S3, CloudWatch, Git, GitHub, JUnit, Jest, JIRA, Docker, ECS, EKS, Microsoft Teams, Electronic Data Interchange X.12 (EDI), XML, JSON
Toronto or Minneapolis or United States or Europe or Africa or Asia or Australia
$95k-$170k/yrRemoteFull Time
DayforceNYSE: DAY: Cloud platform providing global human capital and payroll management.
Senior-level platform engineer with experience building scalable backend services and extensible APIs using C#/.NET, Microsoft SQL Server, Microsoft Azure, familiarity with LLM-based AI tooling, and strong mentoring and communication skills.
GitHub Copilot, Cursor, Claude Code, LLMs, C#, .NET, Microsoft SQL Server, Microsoft Azure, Dayforce Workflow
Solution Design Group: Designs and develops custom software and digital product strategies.
5+ YOE5+ years professional experience; strong Python backend and React frontend skills; experience with APIs/microservices, cloud (AWS/Azure/GCP), CI/CD and DevOps; AI-assisted development tools experience preferred.
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
7+ YOE7+ years web development; backend focus (Python) with frontend capability; experience building production systems; strong API and distributed systems experience; leadership and collaboration skills.
Concord: Provides technology consulting and digital transformation services for enterprises.
9+ YOE9+ years software engineering experience, GCP experience (BigQuery/Dataflow/Dataproc), hands-on across backend/data/UI, experience with AI-assisted tools, strong stakeholder communication; must be authorized to work in the US.