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Java software engineer Jobs in St Louis, MO

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Java software engineer • st louis mo

Last updated: 2 days ago

Remote Senior Software Engineer

Micro1Lemay, Missouri, US
$40.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1University City, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1St. Louis, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1Brentwood, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Senior Software Engineer

Trinity Global ConsultingSt. Louis, MO, US
Full-time
Quick Apply

Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development and proposed solutions.Document and demonstrating solutions by developing documentat... Show more

PHP/Go Software Engineer

Federal Reserve Bank (FRB)St. Louis, MO, US
$110,800.00 yearly
Full-time +1

Company Federal Reserve Bank of St.Louis The St Louis Fed is one of 12 Reserve Banks serving all or parts of Missouri, Illinois, Indiana, Kentucky, Tennessee, Mississippi, and Arkansa... Show more

Remote Senior Software Engineer

Micro1Granite City, Illinois, US
$40.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Software Engineer

CACI International IncSt. Louis, MO, US
$82,100.00 yearly
Full-time

Job Title: Software EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type... Show more

SDC Java Software Developer---Senior---St. Louis

EYSt. Louis, MO, US
$67,000.00 yearly
Full-time

As an FSO Technology Senior Analyst, you’ll be based in our Service Delivery Center, which is made up of high-performing US-based colleagues who work closely with our experienced advisory professio... Show more

Remote Software Engineer

Micro1East St. Louis, Illinois, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Senior Software Engineer

Trevity LLCSt. Louis, MO, US
Full-time

Job Description</h3><br /><p>Trevity LLC is seeking Senior Software Engineers to lead the development and integration of enterprise-scale software solutions supporting imagery exp... Show more

Remote Software Engineer

Micro1Granite City, Illinois, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Senior Software Engineer

Micro1Jennings, Missouri, US
$40.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1Lemay, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1Jennings, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Software Engineer

Micro1Cahokia, Illinois, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Remote Senior Software Engineer

Micro1Cahokia, Illinois, US
$40.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

Senior Software Engineer - Full Stack - Java/React

Enterprise HoldingsSt. Louis, MO, US
Full-time

Enterprise Mobility is a leading provider of mobility solutions, owning and operating the Enterprise Rent-A-Car, National Car Rental and Alamo Rent A Car brands through its integrated global networ... Show more

Principal Software Engineer - Java/Spring Boot/AWS/Junit

Federal Reserve SystemSt. Louis, MO
$173,400.00 yearly
Full-time +1

Federal Reserve Bank of BostonFederal Reserve Financial Services (FRFS) delivers a suite of payments services to financial institutions via FedLine® Solutions, FedNowSM, Fedwire®, National Settleme... Show more

Remote Software Engineer

Micro1Affton, Missouri, US
$20.00 hourly
Remote
Full-time

AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more

People also ask
Remote Senior Software Engineer

Remote Senior Software Engineer

Micro1Lemay, Missouri, US
11 days ago
Salary
$40.00 hourly
Job type
  • Full-time
  • Remote
Job description
Senior Software Engineer$40 - $85/hourpay

Required Skills

Python3JAVARustAlgorithmsBasics C++Typescriptbug fixingfeature implementationcodebase refactoringperformance optimization

About micro1

micro1 is the leading AI data lab for training frontier models and evaluating AI agents. Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more. micro1 transforms that real-world expertise into high-quality training data, evaluations, and feedback loops that improve how AI systems learn, reason, and perform.

Our platform identifies and vets top talent through an AI recruiter, enabling high-quality expert contributions at scale. We aim to enable 1 billion people to do meaningful work by applying their expertise to AI. As our global expert network grows, micro1 is building the human intelligence layer for frontier AI.

Job Title: Senior Software Engineer


Job Type: Contractor

Location: Remote


Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.


Key Responsibilities:

  1. Contribute expert-level knowledge to bug fixing, feature implementation, codebase refactoring, and performance optimization across a range of programming languages.
  2. Analyze and enhance software codebases to ensure clarity, maintainability, and efficiency.
  3. Collaborate with multidisciplinary teams to provide feedback and insights for AI model improvement.
  4. Develop robust solutions and document best practices to support scalable AI training workflows.
  5. Evaluate existing system architecture and recommend technical strategies for optimal results.
  6. Deliver clear, concise written and verbal communication regarding technical findings and project progress.
  7. Support the continuous improvement of AI systems by providing real-world coding expertise in challenging scenarios.



Required Skills and Qualifications:

  1. Proficiency in Python3, Java, Rust, or TypeScript, with additional experience in C++ or Go considered a strong asset.
  2. Deep understanding of algorithms, data structures, and performance tuning.
  3. Demonstrated experience in debugging complex software issues and delivering maintainable solutions.
  4. Strong background in feature development and codebase refactoring.
  5. Proven ability to optimize software for performance and scalability.
  6. Exceptional written and verbal communication skills, with a keen attention to detail.
  7. Track record of success in collaborative, cross-functional teams, ideally in remote settings.



Preferred Qualifications:

  1. Previous experience working on large-scale, distributed codebases.
  2. Familiarity with modern AI or machine learning systems is a plus, though not required.
  3. Background in participating in rigorous code reviews and contributing to the development of software best practices.



We are seeking strong Software Engineers to join our customer's team with expertise in Python3, Java, Rust, Go, C++, or TypeScript. This is a unique opportunity to directly impact the next generation of AI by leveraging your advanced engineering skills in a dynamic, remote setting.