Full Stack Developer

Apex Systems; Fort Myers, Northern (FL, KY); Hybrid; USD 96,000 - 110,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401K with company match

HSA (Health Savings Account)

Employee Assistance Program

Job summary

Everforth Apex is seeking a Senior Full Stack Developer to join a transformation team. This role will switch between data‑specific coding and building new features in a fast‑paced environment.

You will architect and maintain end‑to‑end applications using React, C#, Node.js, and Fastify, connect systems to a central data warehouse, and drive data ingestion and optimization.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related field.
• 8–12+ years of professional software engineering experience across the full stack.
• 3–5+ years designing and operating distributed systems in production.
• Senior-level proficiency in C# and Node.js; strong frontend with React and Vite.

Responsibilities

• Architect, develop, and maintain full-stack applications end-to-end.
• Connect systems into a central data warehouse and modify existing code.
• Finish the data warehouse workstream, including data ingestion.
• Read and modify code across frameworks and manage lifecycle with GitHub.
• Design distributed systems, including backend workers and API layers.
• Model, query, and optimize data across SQL and NoSQL databases.
• Produce technical documents, architecture diagrams, and roadmaps.

Skills

C#

Node.js

React

Vite

Azure

SQL Server

GitHub

Data analysis

PostgreSQL

MongoDB

Education

Bachelor’s degree in Computer Science, Software Engineering, or related field

Master’s degree

Tools

Fastify

Redis

MongoDB

Job description

Full Stack DeveloperLocation: Remote Duration: 6-9 Month Contract, Potential to Extend Rate: $70-$80 Per Hour W2

We are seeking a Senior Full Stack Developer for a transformation team. This role involves a dual focus on completing a data warehouse workstream and developing a forecast pro evergreen solution. The position requires shifting between data-specific coding and creating net-new modifications to develop and improve existing systems. The ideal candidate will be a self-starter who can demonstrate proficiency and work independently in a fast-paced environment.

Key Responsibilities

• Architect, develop, and maintain full-stack applications end-to-end, including frontend (React/Vite) and backend services (C# and Node.js/Fastify).


• Develop and improve existing systems by connecting all systems into a central data warehouse and modifying existing codebases.


• Finish the data warehouse workstream, including data ingestion.


• Utilize tools for converting different frameworks (such as C++, PHP, C#, Javascript) into a centralized technology stack, and be able to read and modify the code as needed.


• Manage the software development lifecycle using GitHub.


• Design and implement distributed systems, including backend service workers, business-logic middleware, API routing layers, and user-facing interfaces.


• Model, query, and optimize data across relational and non-relational databases.


• Produce and maintain clear technical documentation, including architecture diagrams, API references, and project roadmaps.

Required Qualifications

• Education: A Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related field is required.


• Experience: 8-12+ years of professional software engineering experience, with demonstrated expertise across the full stack. This includes 3-5+ years of experience designing and operating distributed systems in a production environment.


• Technical Skills: Senior-level proficiency in C# and Node.js. Strong frontend development skills with React and Vite. Experience with data technologies including Azure and SQL Server. Proficiency with Azure Cloud. Experience with GitHub for lifecycle management. Experience with Claude Cowork Strong data analysis skills with experience across multiple databases, primarily PostgreSQL and SQL Server.

Preferred Qualifications

• A Master’s degree is preferred.


• Experience with SQL Management Server.


• Familiarity with Fastify, Redis, and MongoDB.


• Experience in manufacturing, engineering, or a similar technology industry.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Everforth Apex Benefits Overview

• Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.


• We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.


• Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.


• In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.


• Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach.


• You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

Everforth Apex Systems is an equal opportunity employer.

We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.

Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [e-mail] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.