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Junior Developer Startup Jobs in Mississippi (NOW HIRING)

... mentoring junior technicians to ensure operational reliability. * Facilities Operations Lead ... Support commissioning efforts by witnessing equipment startup, assisting with functional testing ...

Our team is small, highly motivated, and focused on engineering excellence. This organization is ... Support commissioning efforts by witnessing equipment startup, assisting with functional testing ...

Junior Developer Startup information

See Mississippi salary details

$22.7K

$84.3K

$130.2K

How much do junior developer startup jobs pay per year?

As of Aug 28, 2026, the average yearly pay for junior developer startup in Mississippi is $84,266.00, according to ZipRecruiter salary data. Most workers in this role earn between $63,500.00 and $82,400.00 per year, depending on experience, location, and employer.

What is a junior developer startup?

A Junior Developer Startup job involves working as an entry-level software developer in a fast-paced startup environment. You'll likely assist in coding, debugging, and testing software while collaborating with a small team. Startups often require developers to be adaptable, learn quickly, and take on various responsibilities beyond coding. This role provides great exposure to modern technologies and agile development practices. It’s a valuable opportunity to grow your skills and gain hands-on experience in a dynamic setting.

What are some common challenges a junior developer may face when working at a startup?

Junior Developers in startup environments often encounter rapid changes in project direction, shifting priorities, and the need to learn new technologies quickly. Unlike more established companies, startups may have less formalized onboarding and training, requiring you to take initiative and learn on the go. You'll likely collaborate closely with small, cross-functional teams, which means communication skills and flexibility are essential. Embracing these challenges can accelerate your growth, expand your technical skill set, and offer opportunities to make a direct, visible impact on the company's products.

What are the key skills and qualifications needed to thrive in the junior developer startup position, and why are they important?

To thrive as a Junior Developer at a startup, you need foundational knowledge of programming languages (such as JavaScript, Python, or Ruby), basic understanding of web development, and a degree in computer science or related experience. Familiarity with source control systems like Git, cloud services, and popular frameworks is important, and participation in coding bootcamps or relevant certifications is a plus. Strong problem-solving, adaptability, and effective communication are key soft skills for collaborating in a dynamic, fast-paced environment. These abilities help junior developers quickly learn, contribute to product development, and grow within the rapidly evolving startup landscape.

What are popular job titles related to Junior Developer Startup jobs in Mississippi?

For Junior Developer Startup jobs in Mississippi, the most frequently searched job titles are:

What job categories do people searching Junior Developer Startup jobs in Mississippi look for?

The top searched job categories for Junior Developer Startup jobs in Mississippi are:

What cities in Mississippi are hiring for Junior Developer Startup jobs?

Cities in Mississippi with the most Junior Developer Startup job openings:

Infographic showing various Junior Developer Startup job openings in Mississippi as of August 2026, with employment types broken down into 100% Full Time. Highlights an 83% In-person, 6% Hybrid, and 11% Remote job distribution, with an average salary of $84,266 per year, or $40.5 per hour.

Critical Facilities Engineer

Southaven, MS • On-site


SpaceXAI
Aerospace Product and Parts Manufacturing • 1 - 5K employees

8.7

Company rating: 8.7 out of 10

Based on 150 frontline employees who took The Breakroom Quiz

16th of 72 rated aerospace companies

Great coworkers

People enjoy working here

Good employer


Full-time

Re-posted 2 days ago


Job description

SpaceXAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company's mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

ABOUT THE ROLE:

As a Facilities Operations Technician at SpaceXAI, you'll dive in, operating and maintaining the critical facility systems that power our supercomputing data centers. Working hands-on with MEP systems, you'll tackle maintenance, operations, and repairs, ensuring peak performance and reliability. Expect to troubleshoot complex issues, streamline processes, and collaborate with teams to keep our infrastructure running smoothly, directly supporting SpaceXAI's mission to accelerate human scientific discovery through AI. 

This role includes the following positions, each with increasing responsibility:

  • Facilities Operations Technician: Independently operate and maintain critical mechanical, electrical, and plumbing (MEP) systems in supercomputing data centers, ensuring high reliability and performance through hands-on maintenance, troubleshooting, and process optimization.

  • Sr Facilities Operations Technician: Perform advanced maintenance and troubleshooting of critical data center systems like HVAC, power, and environmental controls, while mentoring junior technicians to ensure operational reliability.

  • Facilities Operations Lead: Oversee the maintenance and optimization of critical data center infrastructure, including power, cooling, and environmental systems, while leading a team of technicians to ensure operational reliability and efficiency.

RESPONSIBILITIES:
  • Responsible for MEP Infrastructure site safety and environmental compliance, ensuring the sites align with all local and regional health and safety requirements.
  • Provide operational expertise for Mechanical, Electrical, and Plumbing (MEP) systems at the datacenter facility. The systems and equipment can include pumps, piping, chillers, cooling towers, CRAH units, wiring, lighting systems, generators, motors, water supply, UPS and switchgear, etc.
  • Routinely inspect all areas to ensure performance measures are being maintained and proactively self-report the problems of facilities.
  • Experience with writing and executing MOPs, SOPs, EOPs.
  • Perform daily inspections of critical systems.
  • Identify and maintain spare parts inventory to minimize downtime.
  • Coordinate and supervise scheduled system shutdowns.
  • Develop and implement energy monitoring metrics.
  • Support commissioning efforts by witnessing equipment startup, assisting with functional testing, and monitoring construction progress.
BASIC QUALIFICATIONS:
  • Bachelor's Degree in Mechanical or Electrical or 2+ years of hands-on operations/facilities work experience in lieu of degree (data center experience preferred).
  • Knowledge of mechanical or electrical engineering principles and systems (both would be a huge plus).
  • Experience and knowledge of all critical systems documentation including Plans, Procedures, and Operations Manuals.
  • Experience and knowledge of Building and Electrical Power Monitoring Systems and Operations.
  • Strong troubleshooting skills.
  • Experience with PLC-based control systems and/or with Building Management Systems (Client).
  • Excellent written and verbal communication and technical writing skills in English.
  • Physical Requirements:
    • Ability to lift up to 50 lbs.
    • Ability to utilize hand tools and power tools as needed.
    • Work is often performed in tight quarters, and physical dexterity is necessary to perform job functions.
    • Ability to lift up to 35 lbs. unassisted.
    • Comfortable working at elevated heights (up to 100 feet) with appropriate safety gear.
    • Comfortable working in extreme outdoor environments—heat, cold, rain, etc.
    • Comfortable working in an environment requiring exposure to fumes, odors, and noise.
  • Available to work flexible shifts providing 24x7 coverage as needed, including evenings, weekends, and holidays.
  • Position is subject to pre-employment drug and random drug and alcohol testing.
  • Position is subject to pre-employment and annual post-employment background checks.
  • Willing to travel as needed (up to 10%).
  • Valid driver's license.

SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.


SpaceX logo

About SpaceX

Sourced by ZipRecruiter

Industry

Aerospace product and parts manufacturing, data services, guided missile and space vehicle manufacturing and satellite telecommunications

Company size

1,001 - 5,000 Employees

Headquarters location

Hawthorne, CA, US


What SpaceX employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom