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Junior Developer Startup Jobs (NOW HIRING)

Maigrate

Junior AI Engineer

Lawrence, NY · On-site

$85K - $110K/yr

Junior engineers who join now won't just execute tasks - they'll learn by doing, work directly ... Grow quickly by tackling a wide range of problems across the stack in a startup environment

Equinox Engineering

We are seeking a Junior Process Engineer with 2+ years of experience who is eager to grow their ... Support commissioning, startup activities, and field engineering tasks when required Safety ...

Oklo

Junior Radiochemist

Idaho Falls, ID · On-site

This role is ideal for an early-career scientist or engineer interested in developing expertise in ... Experience supporting startup, commissioning, or operational readiness activities. Competencies We ...

New

Oklo

Junior Radiochemist

Idaho Falls, ID

This role is ideal for an early-career scientist or engineer interested in developing expertise in ... Experience supporting startup, commissioning, or operational readiness activities. Competencies We ...

New

Linamar

Engineer - Process, Junior

Fletcher, NC · On-site

Junior Process Engineer At this time, we are not able to offer current or future work authorization ... Support during startup and set up * Maintains professional and technical knowledge by attending ...

Urrly

Junior Software Engineer

Austin, TX · On-site

$85K - $115K/yr

Junior Software Engineer Build real public safety software with AI tools, modern web apps, and ... You'll work closely with the VP of Engineering in a small team with startup feel, real product ...

Linamar

Engineer - Process, Junior

Fletcher, NC

Junior Process Engineer At this time, we are not able to offer current or future work authorization ... Support during startup and set up * Maintains professional and technical knowledge by attending ...

Urrly

Junior Software Engineer (Remote)

Austin, TX · Remote

$85K - $115K/yr

Junior Software Engineer Build real public safety software with AI tools, modern web apps, and ... You'll work closely with the VP of Engineering in a small team with startup feel, real product ...

ACI Infotech

Python Developer

$51.50 - $71/hr

Help recruit, develop, and mentor junior developers. * Foster the client engineering team brand and ... Ability to thrive in a fast-paced startup. * Someone who loves to learn and is passionate about ...

Crelate

Junior Software Developer

Eagle, ID

$64K - $83K/yr

Crelate, a fast-growing startup with over 1,500 customers, is seeking a Junior Software Developer to join our growing team. You will be an important part of our product and migration teams. This role ...

Crelate

Junior Software Developer

Eagle, ID

$64K - $83K/yr

Crelate, a fast-growing startup with over 1,500 customers, is seeking a Junior Software Developer to join our growing team. You will be an important part of our product and migration teams. This role ...

Crelate

Junior Software Developer

Eagle, ID · On-site

$64K - $83K/yr

Crelate, a fast-growing startup with over 1,500 customers, is seeking a Junior Software Developer to join our growing team. You will be an important part of our product and migration teams. This role ...

ACI Infotech

Python Developer

$51.50 - $71/hr

Help recruit, develop, and mentor junior developers. * Foster the client engineering team brand and ... Ability to thrive in a fast-paced startup. * Someone who loves to learn and is passionate about ...

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How much do junior developer startup jobs pay per year?

As of Jun 26, 2026, the average yearly pay for junior developer startup in the United States is $88,976.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,000.00 and $87,000.00 per year, depending on experience, location, and employer.

What is a Junior Developer Startup job?

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 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 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.

More about Junior Developer Startup jobs
What cities are hiring for Junior Developer Startup jobs? Cities with the most Junior Developer Startup job openings:
What are the most commonly searched types of Developer Startup jobs? The most popular types of Developer Startup jobs are:
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Junior Developer Startup jobs near you
Infographic showing various Junior Developer Startup job openings in the United States as of June 2026, with employment types broken down into 75% Full Time, 8% Part Time, 1% Temporary, and 16% Contract. Highlights an 84% Physical, 2% Hybrid, and 14% Remote job distribution, with an average salary of $88,976 per year, or $42.8 per hour.

Junior Process Engineer

Equinox Engineering

Denver, CO

Full-time

Posted 15 days ago

Job description

Equinox Engineering is an International EPCM leader known for innovative facility design and engineering across natural gas, oil, heavy oil, carbon capture, power generation, emerging energy, and brownfield Projects around the globe. We work with top energy producers in the USA, Canada, and internationally. We are committed to identifying and retaining the most talented employees to delivering highquality projects of all sizes and complexities that exceed client expectations.

We are seeking a Junior Process Engineer with 2+ years of experience who is eager to grow their technical skills, contribute to multidisciplinary project teams, and support the design and optimization of energy facilities. This role offers handson learning, exposure to diverse projects, and strong mentorship from experienced engineers.

Why Join Equinox?
  • Meaningful work on a wide range of energy and processing projects
  • Strong, people-focused culture emphasizing mentorship, collaboration, and technical growth
  • Flexible and supportive work environment with long-term career development opportunities
  • Entrepreneurial culture that fosters creative and commercially minded leaders. 
What You'll Do

As a Junior Process Engineer, you will support process engineering activities across various project phases-from conceptual design through detailed engineering and operational support. Responsibilities include:

Technical Support
  • Assist in developing process simulations and models under senior guidance
  • Support preparation of key engineering deliverables, including: 
    • Heat & Material Balances
    • Process Flow Diagrams (PFDs)
    • Piping & Instrumentation Diagrams (P&IDs)
    • Engineering calculations, reports, and data sheets
  • Conduct basic analyses of facility performance and help identify opportunities for optimization or debottlenecking
Collaboration & Project Execution
  • Work closely with multidisciplinary engineering teams, senior engineers, and project managers
  • Interface with vendors to gather technical information and support equipment specification
  • Support commissioning, startup activities, and field engineering tasks when required
Safety, Quality & Compliance
  • Participate in P&ID reviews, hazard assessments, and design verification activities
  • Ensure deliverables comply with applicable engineering standards, codes, and regulatory requirements
Technical Exposure

You will gain handson experience in a variety of process systems, which may include:
  • Natural gas processing (sweet and sour gas)
  • Oil processing, including heavy oil, stabilization, and treating operations
  • Power Generation
  • Brownfield MOC's
  • Refinery process systems
About You

You are an early-career engineer with a desire to learn, take on new challenges, and contribute to high-quality engineering work. You bring:

  •  Bachelor's degree in Chemical Engineering
  • 2+ years of experience in process engineering (EPC/EPCM experience preferred)
  • Familiarity with process simulation tools (e.g., Aspen HYSYS, ProMax, or similar)
  • Strong analytical, communication, and teamwork skills
  • Ability to work effectively in a fast-paced project environment
Ready to Apply?
If you're looking to accelerate your process engineering career, contribute to impactful energy projects, and learn from industry-leading engineers, we'd love to hear from you.

Apply