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Freelance Junior Full Stack Developer Jobs in Wisconsin

Technoidentity

WI · On-site

$140 - $190/hr

Supercharge Your Career as a Senior Full-Stack Engineer at Technoidentity! At Technoidentity, we're a Data & AI product engineering company with over 15 years of expertise in building durable digital ...

Soda Data

WI · On-site

$98 - $139/hr

... stack. * DevOps fluency : containers, CI/CD, infrastructure-as-code, comfortable on Linux ... Working at Soda, you will have full autonomy to make impactful product and roadmap decisions. Why ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site +1

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

Triwill Group

WI · On-site

$80.58 - $126.63/hr

Our partner is looking for a Senior Full Stack Software Engineer based in Belgium. This role offers the opportunity to build and enhance modern cloud-native applications that support large-scale data ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

Theme29

WI · On-site

$85 - $115/hr

Senior Full Stack Engineer, Creator Success Full TimeResponsibilities Product knowledge: Deeply understand the technology and features of the product area to which you are assigned. Research: Provide ...

SILVER STAR BRANDS INC

Full Stack Web Developer

Oshkosh, WI · On-site

$65K - $75K/yr

Are you a self-motivated developer who loves building great digital experiences? At Silver Star Brands, you'll have the opportunity to work on public-facing eCommerce websites that real customers use ...

Sitemark

WI · On-site

$86.34 - $126.63/hr

Tasks As a Senior Full-Stack Engineer, you'll own the development of impactful features end to end -- from speccing and prioritization through to production and validation. You own real problems and ...

Soteria Reinsurance Ltd.

WI · On-site

$140 - $180/hr

## Principal Full Stack Engineer (MarTech, CDP, Data and Integrations)Applylocations: Westlake, TXtime type: Full timeposted on: Posted Todayjob requisition id: 2130452## ## **Note: Fidelity will not ...

Simple Solutions

WI · On-site

$130 - $140/hr

Senior Software Engineer(Full Stack) .Net & C# - Hybrid 3 days Contract to Hire | Simple Solutions ... Exposure to DevOps, SRE, or platform engineering practices. #J-18808-Ljbffr

Socket.dev

WI · On-site

$209 - $262.40/hr

Senior Lead Software Engineer, Full Stack (Global Payment Network) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast‑paced ...

TiTANS Consulting

WI · On-site

$90 - $130/hr

Développer, programmer, tester et assurer la maintenance des applications logicielles et des logiciels de gestion attribués afin d'obtenir des applications informatiques les plus infaillibles ...

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Freelance Junior Full Stack Developer information

What is the difference between Freelance Junior Full Stack Developer vs Freelance Front End Developer?

AspectFreelance Junior Full Stack DeveloperFreelance Front End Developer
SkillsBasic to intermediate knowledge of both front-end and back-end technologiesSpecialized in front-end technologies like HTML, CSS, JavaScript
CredentialsOften no formal certification required, but knowledge of multiple stacks helpsOften no formal certification, but expertise in UI/UX and front-end frameworks
Work EnvironmentRemote or freelance projects across various industriesPrimarily remote, focusing on website and app UI development
Industry UsageCommon in startups, small businesses, and freelance platformsPopular in web design agencies, startups, and freelance marketplaces

The main difference is that Freelance Junior Full Stack Developers handle both front-end and back-end tasks, while Freelance Front End Developers focus solely on the user interface and client-side features. Your choice depends on your skill set and project needs.

What are some common challenges faced by freelance junior full stack developers in managing multiple projects?

Freelance junior full stack developers often face challenges in balancing multiple client projects, such as time management, setting clear expectations, and maintaining consistent communication. Since they may work with clients from different industries, adapting quickly to varying tech stacks and project requirements is essential. Additionally, without the structure of a traditional team, freelancers must be proactive in seeking feedback and continuing their professional growth. Building strong organizational habits and using project management tools can greatly help in overcoming these hurdles.

What is a freelance junior full stack developer?

A Freelance Junior Full Stack Developer is an entry-level programmer who works independently, rather than as a full-time employee, building both the front-end and back-end components of web applications. They typically possess foundational skills in languages and frameworks such as JavaScript, HTML, CSS, Node.js, and React or similar technologies. Freelance junior developers often work on smaller projects or provide support to more experienced developers, allowing them to gain practical experience while growing their technical expertise. Their responsibilities may include writing code, fixing bugs, deploying applications, and communicating with clients about project requirements.

What are the key skills and qualifications needed to thrive as a freelance junior full stack developer?

To excel as a Freelance Junior Full Stack Developer, you need solid knowledge of both front-end (HTML, CSS, JavaScript) and back-end (e.g., Node.js, Python) technologies, often supported by a relevant degree or coding bootcamp experience. Familiarity with frameworks like React or Angular, version control systems like Git, and cloud platforms such as AWS, as well as a portfolio or GitHub profile, are typically expected. Strong problem-solving skills, self-motivation, and effective communication help you manage client expectations and collaborate remotely. These combined skills enable you to deliver high-quality, full-cycle web solutions while building trust and maintaining successful client relationships.
What are popular job titles related to Freelance Junior Full Stack Developer jobs in Wisconsin? For Freelance Junior Full Stack Developer jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Freelance Junior Full Stack Developer jobs in Wisconsin look for? The top searched job categories for Freelance Junior Full Stack Developer jobs in Wisconsin are:
Freelance Junior Full Stack Developer jobs near you
Infographic showing various Freelance Junior Full Stack Developer job openings in Wisconsin as of August 2026, with employment types broken down into 89% Full Time, 4% Part Time, 6% Contract, and 1% Nights. Highlights an 87% Physical, 2% Hybrid, and 11% Remote job distribution.

Senior Full-Stack Engineer

Technoidentity

WI • On-site

$140 - $190/hr

Other

Posted 5 days ago

Job description

Supercharge Your Career as a Senior Full-Stack Engineer at Technoidentity!

At Technoidentity, we’re a Data & AI product engineering company with over 15 years of expertise in building durable digital products, intelligent enterprise solutions, and scalable Data & AI platforms. As we continue expanding globally, it’s the perfect time to join our team of tech innovators and make a lasting impact.

Technoidentity — Durable Product Engineering What’s in it for You?

You’ll build internal apps, AI workflows, AI agents, and backend integrations powering Finance and Supply Chain operations for a Tier-1 client. The work spans Python services, React front-ends, API and enterprise integrations, and Temporal-based durable workflows — plus production support for what you ship. This is a hands-on IC role for engineers who move fast, build reliable software, and can drive ambiguous business workflows to done with minimal hand-holding.

Some engineers in this role will be evaluated against the client’s own senior engineering standards, so we hire people who can hold that bar.

Requirements What Will You Be Doing?
  • Build internal applications and tools end to end — Python backends, React front-ends, and the APIs between them.
  • Design and implement AI workflows and AI agents that automate real Finance and Supply Chain processes.
  • Model long-running, stateful business processes as durable Temporal workflows — orchestration, retries, human-in-the-loop steps, exception handling.
  • Build backend and enterprise integrations (ERPs, finance/supply-chain systems, third-party APIs, internal services).
  • Own production support for your systems: monitoring, debugging, incident response, and iterative hardening.
  • Translate ambiguous business requirements into reliable, well-scoped software with limited direction.
What Makes You the Perfect Fit?
  • 5+ years building production software, with strong recent Python (async, typing, testing discipline).
  • Solid CS fundamentals — data structures, algorithms, complexity — strong enough to pass a rigorous coding interview.
  • Backend and API depth: designing, building, and integrating services; handling failure, idempotency, and data consistency.
  • Working React proficiency — can build and maintain functional front-ends for internal tools.
  • Proven ability to work through ambiguous business workflows independently and ship reliably and quickly.
  • Strong written and verbal communication; comfortable defending design decisions with client engineers.
  • Legally authorized to work in the US.
Strongly Preferred
  • Hands-on Temporal (or equivalent durable-execution engines like Cadence, Step Functions) — understands determinism constraints, activity/workflow boundaries, signals/queries, durable timers, versioning, worker scaling.
  • Experience building AI workflows or agents — LLM orchestration, tool/function calling, retrieval, evals, guardrails.
  • Finance and/or Supply Chain domain exposure, or experience with enterprise system integrations.
  • Production ownership: on-call, observability (logs/metrics/tracing), safe deploys.
What makes a candidate stand out
  • Clean, testable, idiomatic code and a high personal quality bar — reviewers rarely need to ask twice.
  • Can decompose a vague, open-ended problem into a correct, incremental plan and explain the reasoning clearly.
  • Fast learner — picks up unfamiliar codebases, domains, and tools quickly.
  • Track record of shipping reliable systems in fast-moving, high-stakes environments.
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