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2290 Tech Lead Sr Full Stack Developer jobs in Saint Louis,MO

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UX Developer [209594]

Aquent Talent

St Louis, MO

RemoteHealth InsurancePaid Time OffRetirement Benefit

Minimum 5+ years of experience coordinating or managing small to medium-sized projects.
5+ years of experience as a UX Engineer, Front-end Developer, or Design Technologist, shipping UI or high-fidelity prototypes.
Proven ability to build coded prototypes (portfolio required).
Strong proficiency with HTML/CSS (SCSS) and JavaScript/TypeScript.
Production experience with React (or similar framework) and modern component patterns.
Experience with front-end frameworks such as React, Angular, or Vue.js.
Experience working in an Agile/Scrum development process.
Basic understanding of design principles, visual design, white space, font treatments, information architecture, and grid systems.
Proven experience working from design specifications and collaborating closely with product owners, engineers, and other product designers.
Demonstrated experience tokenizing design systems (creating/maintaining tokens, mapping to components, supporting theming/modes).
Experience creating Markdown documentation for UI patterns, components, or internal enablement.
Experience using LLM tools as part of a design/development workflow, including prompt practices and human-in-the-loop review.
Solid accessibility foundations (WCAG/ARIA) and performance-minded UI development.
Strong communication skills; comfortable presenting work to senior stakeholders.

SmartExplore AI is experimental.

New, Posted 6 hours ago

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Senior Software Engineer LLM Training [207666]

Skill

St Louis, MO

Remote

Candidates must be based in the United States
5+ years of software engineering experience.
Strong expertise in Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go.
Demonstrated experience in application development and deploying scalable, production-grade software.
Deep understanding of software architecture, design, development, debugging, and code quality assessment.
Excellent oral and written communication skills, capable of providing clear and structured evaluation rationales.
Candidates must have **experience as an employee** working for at least one of these companies in the last seven years: Google, Alphabet, Apple, Amazon, Meta, Facebook, Netflix, Microsoft, Tesla, NVIDIA, Adobe, Salesforce, Airbnb, Dropbox, Stripe, Palantir, Uber, Lyft, Square, Block, Twilio, Snap Inc., Pinterest, GitHub, Atlassian, HashiCorp, Databricks, Snowflake, Cloudflare, DigitalOcean, MongoDB, Elastic, Confluent, Figma, Oracle, Cisco, Paypal, Doordash, Rivian, Reddit, Coinbase, Splunk, Goldman Sachs, Morgan Stanley, JPMorgan Chase, Capital One, Plaid, Shopify, Intuit, Workday, Spotify, ServiceNow, Hugging Face, VMware, Brex, Wise, Epic Games, Unity Technologies, Activision Blizzard, Riot Games, Valve, Huawei, Bloomberg, ByteDance, Alibaba, Baidu, Notion, Klarna, Instacart, Zillow, Ramp, Datadog, or IBM Research.
Candidates must have a degree from one of the following universities to be considered for this role: Princeton University, Massachusetts Institute of Technology (MIT), Harvard University, Stanford University, Yale University, California Institute of Technology (Caltech), Duke University, Johns Hopkins University, Northwestern University, University of Pennsylvania, Cornell University, University of Chicago, Brown University. Columbia University, Dartmouth College, University of California, Los Angeles (UCLA), University of California, Berkeley (UC Berkeley), Rice University, Carnegie Mellon University, University of Michigan, Ann Arbor, Washington University in St. Louis, University of North Carolina, Chapel Hill, University of Southern California, University of California, San Diego, New York University, University of Texas, Austin, Georgia Institute of Technology, University of California, Davis, University of Illinois, Urbana-Champaign, or University of California, Irvine.
MUST HAVE EXPERIENCE WITH**SPECIFIC COMPANIES** AND A DEGREE FROM **SPECIFIC UNIVERSITIES** (LISTED BELOW).

SmartExplore AI is experimental.

New, Posted 14 hours ago

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Full Stack Developer

Outlier

Saint Louis, MO 63129

$50/hr

Remote

2+ years of experience in backend engineering, AI automation, or complex systems integration
Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
Practical experience building for live, non-mocked environments and handling multi-turn system interactions
Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
This is a 1099 contract opportunity on the Outlier.ai platform. Because this is a freelance opportunity, we do not offer internships, sponsorship, or employment. You must be authorized to work in your country of residence.

SmartExplore AI is experimental.

New, Posted 8 hours ago

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Information Systems Technician

U.S. Navy

Fairmont City, IL 62201

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Product Development Technician

Nestle

Saint Louis, MO 63101

New, Posted 14 hours ago

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CNC Machinist - 2nd Shift

SKF

Saint Louis, MO 63103

$32.60/hr

OnsiteHealth InsurancePaid Time OffRetirement Benefit

Accepting applicants with 1-3 years of CNC experience with a Technical Degree or 3+ years working experience in lieu of degree.
Must know and understand the functions of CNC programs and precision measuring equipment required to produce quality parts.

SmartExplore AI is experimental.

New, Posted 14 hours ago

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Senior Quality Assurance Specialist

Merck Group

Saint Louis, MO 63103

OnsiteHealth InsurancePaid Time OffRetirement Benefit

Bachelor's Degree in Science (Chemistry, Pharmacy, etc.) or Engineering (Chemical, Process, etc.).
5+ years of quality experience in a biologic, GMP, or Active Pharmaceutical Ingredient manufacturing environment.

SmartExplore AI is experimental.

New, Posted 5 hours ago

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