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Founding Full Stack Software Engineer Jobs in Jacksonville, FL

Kavaliro

Senior Fullstack Engineer

Jacksonville, FL · On-site

Minimum Qualifications * 3+ years of professional experience in full stack software development, with a strong emphasis on backend engineering. * Bachelor's degree in Computer Science or a related ...

Deloitte

Cyber Full Stack Manager

Jacksonville, FL

As a Full Stack Engineer Manager in Deloitte Cyber's Digital Trust & Privacy practice, you will operate at the intersection of client-facing advisory, product engineering, and hands-on technical ...

Yusen Logistics

Senior Software Engineer

Jacksonville, FL · On-site

$113K - $149K/yr

The Senior Software Engineer is an experienced full stack developer with a proven track record of developing both front and back-end systems. The Sr. Software Engineer designs and builds full stack ...

ARC Group

(Full stack) Java/react Developer

Jacksonville, FL · Remote

$48.75 - $62.75/hr

(Full stack) Java/react Developer - Remote ARC Group has an immediate opportunity for a(Full stack) Java/react Developer! This position is 100% remote. This is starting out as a contract position ...

ApplyMint

Senior Software Engineer

Jacksonville, FL · On-site

$108 - $132/hr

Senior Software Engineer Jacksonville, FL Starting Salary $120,000+ DOE Position Summary Tactical ... Experience developing across a full-stack: webserver, relational databases, and client-side ...

Inverselogix Inc

Full Stack Developer

Jacksonville, FL · On-site

Company Description Requirements: • At least 5+ years of experience and proficiency in developing applications using NodeJS, ExpressJS, MongoDB and has extensive experience is designing developing ...

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Showing results 21-40

All JobsFounding Full Stack Software Engineer JobsFounding Full Stack Software Engineer Jobs in Jacksonville, FL

Founding Full Stack Software Engineer information

See Jacksonville, FL salary details

$41.2K

$124.9K

$176.5K

How much do founding full stack software engineer jobs pay per year?

As of Aug 24, 2026, the average yearly pay for founding full stack software engineer in Jacksonville, FL is $124,874.00, according to ZipRecruiter salary data. Most workers in this role earn between $102,800.00 and $146,400.00 per year, depending on experience, location, and employer.

What is a founding full stack software engineer?

Founding Full Stack Software Engineers are technical professionals who join a startup at its earliest stages to help build and shape the company's core products and technology infrastructure. They work across both the front-end and back-end of applications and play a key role in making architectural decisions, setting up development processes, and establishing the technical foundation. As 'founding' team members, they often have greater responsibilities, including working closely with company founders, contributing to product strategy, and sometimes receiving equity or a stake in the company.

What are the key skills and qualifications needed to thrive as a founding full stack software engineer?

To thrive as a Founding Full Stack Software Engineer, you need deep expertise in both front-end and back-end development, strong problem-solving skills, and experience building scalable web applications, usually demonstrated by a degree in computer science or equivalent experience. Mastery of tools and frameworks such as JavaScript, React, Node.js, cloud platforms (AWS, GCP), and version control systems like Git is typically required. Exceptional communication, adaptability, and entrepreneurial mindset are crucial for collaborating in a dynamic startup environment and driving product vision. These skills are vital for rapidly iterating, shipping robust products, and establishing a strong technical foundation for a growing company.

What unique challenges might I face as a founding full stack software engineer in an early-stage startup?

As a Founding Full Stack Software Engineer, you’ll often juggle multiple responsibilities, from designing core architecture to deploying code and setting up development workflows. Since resources are limited and the product vision can evolve quickly, adaptability and strong communication with founders and other early team members are key. You may also be deeply involved in decisions beyond pure engineering, such as hiring, product strategy, and even customer support. This environment can be both demanding and highly rewarding, offering accelerated learning and significant influence over the company’s technical direction.

What are popular job titles related to Founding Full Stack Software Engineer jobs in Jacksonville, FL?

For Founding Full Stack Software Engineer jobs in Jacksonville, FL, the most frequently searched job titles are:

What job categories do people searching Founding Full Stack Software Engineer jobs in Jacksonville, FL look for?

The top searched job categories for Founding Full Stack Software Engineer jobs in Jacksonville, FL are:

What cities near Jacksonville, FL are hiring for Founding Full Stack Software Engineer jobs?

Cities near Jacksonville, FL with the most Founding Full Stack Software Engineer job openings:

Founding Full Stack Software Engineer jobs near you
Infographic showing various Founding Full Stack Software Engineer job openings in Jacksonville, FL as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 9% Part Time, and 4% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $124,874 per year, or $60 per hour.

Senior Fullstack Engineer

Kavaliro

Jacksonville, FL • On-site

Full-time

Re-posted yesterday

Job description

Job Description
Kavaliro is seeking a Senior Full Stack Developer for our local Jacksonville client. n this role, you'll serve as a key contributor across the full product lifecycle, with a strong emphasis on backend architecture and development. This is a fast-paced, hands-on position suited for an experienced full stack engineer who enjoys tackling complex systems, working at scale, and shaping technical direction.
What You'll Do
  • Design and implement cloud-based architecture in Microsoft Azure to support high-volume simulation workloads running in fully automated, background batch processing environments.
  • Develop and maintain simulation software across the stack, with a primary focus on backend systems using C#/.NET Core, C++, and Python.
  • Build and manage integrations with multiple external systems through APIs and data pipelines.
  • Debug, troubleshoot, and optimize complex codebases using Microsoft Visual Studio.
  • Design and maintain data storage solutions, including SQL databases, NoSQL systems, and data lakes, to support large and complex datasets.
  • Participate in system installation, testing, validation, and issue resolution alongside internal teams and clients.
  • Deliver software updates and support deployment and validation efforts in production environments.
  • Provide technical guidance and leadership to engineers and technicians assigned to your projects.
  • Identify opportunities to improve performance, scalability, and overall development efficiency.
Minimum Qualifications
  • 3+ years of professional experience in full stack software development, with a strong emphasis on backend engineering.
  • Bachelor's degree in Computer Science or a related technical field, plus 3+ years of hands-on engineering experience.
  • At least 2+ years of experience designing and implementing Azure-based enterprise applications, including batch processing, queue management, and parallel execution at scale.
  • Proven experience leading or driving software architecture initiatives from planning through delivery and operational support.
  • Hands-on experience designing and tuning databases (SQL, NoSQL, and/or data lakes) to support large, performance-sensitive datasets.
  • Experience designing, consuming, and integrating RESTful APIs, including complex JSON-based data structures and build pipelines that ingest data from multiple external sources.
  • Strong object-oriented programming skills and a disciplined approach to debugging and problem solving.
  • Clear, effective communication skills and the ability to collaborate across teams.
  • Self-directed, highly motivated, and comfortable working independently.
  • Fast learner with a curiosity for new tools, technologies, and domains.
  • Creative problem solver who's comfortable challenging existing approaches.
  • Authorization to work in the United States.
Desired Skills & Experience
  • Proficiency with C#/.NET Core, C++, Python, and batch scripting.
  • Strong background in API and web service integration.
  • Familiarity with GIS data or spatial data systems.
  • Experience generating reports, both scheduled and on-demand.
  • Experience using Kanban-style project management tools such as Jira or Trello.
  • Ability to juggle multiple priorities in a fast-moving environment.
  • Strong written and verbal technical communication skills in English.
  • Exposure to modeling and simulation concepts or experience within the railway industry.
  • Demonstrated team leadership or mentorship experience, with a desire to help others grow.
  • Confidence navigating large, complex, and legacy codebases.
  • Working knowledge of applied engineering math concepts such as force, acceleration, friction, momentum, and power.

Kavaliro provides Equal Employment Opportunities to all employees and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Kavaliro will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please respond to this posting to connect with a company representative.
Job Requirements
On-Site
By using best practices and optimal employee recruiting strategies, Kavaliro provides employers with employment solutions by providing the most qualified and professional employees, who can staff both project and permanent positions in order to ensure the ongoing success of all types of businesses. We use a streamlined-yet-thorough approach to staffing that saves our clients administrative time, resources and money.

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