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Trainee Software Engineer Startup Jobs (NOW HIRING)

Allen Control Systems

Software Engineer

Austin, TX · On-site

Allen Control Systems (ACS) is a cutting-edge defense startup, founded by two former Navy electrical engineers with a proven track record in robotics and software. We are developing a small ...

Allen Control Systems

Software Engineer

Austin, TX · On-site

Allen Control Systems (ACS) is a cutting-edge defense startup, founded by two former Navy electrical engineers with a proven track record in robotics and software. We are developing a small ...

Beli

Software Engineer

New York, NY · On-site

$140K - $200K/yr

As a Software Engineer at Beli, you will be responsible for leading the research, design ... Proven track record of implementing high-impact product features in a startup or high-growth ...

Beli

Software Engineer

New York, NY · On-site

As a Software Engineer at Beli, you will be responsible for leading the research, design ... Proven track record of implementing high-impact product features in a startup or high-growth ...

Vooma

Software Engineer

San Francisco, CA · On-site

Job Summary : Vooma is a startup seeking a Software Engineer to join their founding team. The role involves designing automation technology and building the company's infrastructure while ...

TruNorth LTD

Software Engineer

San Francisco, CA · On-site

🚀 Software Engineer | AI Agents | San Francisco $180k-$250k base + equity I'm working with a ... stage/startup experience is a big plus You don't need experience with every part of their stack.

NxT Level

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

Senior Software Engineer Location: United States Employment Type: Full-time Experience: 3-10 years ... Own product and platform features end-to-end in a fast-moving startup environment * Build and scale ...

NxT Level

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

Senior Software Engineer Location: United States Employment Type: Full-time Experience: 3-10 years ... Own product and platform features end-to-end in a fast-moving startup environment * Build and scale ...

Clera

Founding Software Engineer

San Francisco, CA · On-site

$130K - $200K/yr

About the Role A well-funded, seed-stage B2B SaaS startup in the supply chain integrations space is looking for a Founding Software Engineer to help shape the architecture, culture, and product ...

Emergent Software

Embedded Software Engineer

Carlsbad, CA · On-site

$136K - $179K/yr

Our client is seeking a Embedded Software Engineer (Battery Management System) to lead development ... Comfortable working in a fast-paced startup environment Nice to Haves * Automotive EV battery ...

Clera

Founding Software Engineer

San Francisco, CA · On-site

$130K - $200K/yr

About the Role A well-funded, seed-stage B2B SaaS startup in the supply chain integrations space is looking for a Founding Software Engineer to help shape the architecture, culture, and product ...

NxT Level

Senior Software Engineer

Manhattan, NY · On-site

$134K - $177K/yr

Senior Software Engineer Location: United States Employment Type: Full-time Experience: 3-10 years ... Own product and platform features end-to-end in a fast-moving startup environment * Build and scale ...

Emergent Software

Embedded Software Engineer

Carlsbad, CA · On-site

$150K - $190K/yr

Our client is seeking a Embedded Software Engineer (Battery Management System) to lead development ... Comfortable working in a fast-paced startup environment Nice to Haves * Automotive EV battery ...

Aquila Corporation

Software Engineer

Batesville, IN · On-site

Software Engineer Location: On-Site (Batesville, IN) Employment Type: Full-Time, W-2 with Benefits ... S. Aquila combines engineering precision with the agility of a startup. We leverage modern tools ...

Rad Hires

Software Engineer - NYC

New York, NY · On-site

$150K - $215K/yr

Software Engineer Note: This role is 100% on-site in NYC Number of Vacancies: 3 About the Company Our client is a fast-growing early-stage startup building the AI-powered management system of the ...

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How much do trainee software engineer startup jobs pay per year?

As of Sep 13, 2026, the average yearly pay for trainee software engineer startup in the United States is $139,529.00, according to ZipRecruiter salary data. Most workers in this role earn between $140,000.00 and $140,000.00 per year, depending on experience, location, and employer.

What does a trainee software engineer do at a startup?

A Trainee Software Engineer at a startup typically assists in developing, testing, and maintaining software applications under the guidance of senior developers. They participate in coding, debugging, and learning new technologies relevant to the company's tech stack. Startups often offer a dynamic environment where trainees quickly gain hands-on experience, work on real projects, and contribute to various aspects of the software development process. This role is ideal for recent graduates or those looking to begin their careers in software engineering.

What skills and qualifications are needed to thrive as a trainee software engineer at a startup?

To thrive as a Trainee Software Engineer at a startup, you need a solid grasp of programming fundamentals, problem-solving skills, and a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, agile methodologies, and common programming languages such as Python or JavaScript is typically required. Initiative, adaptability, and strong communication skills help you stand out in a fast-evolving, collaborative startup environment. These qualities are crucial for quickly learning new technologies, contributing effectively to small teams, and driving innovation in a dynamic setting.

What can a trainee software engineer at a startup expect in terms of mentorship and learning opportunities?

As a Trainee Software Engineer at a startup, you can expect hands-on learning with close mentorship from senior engineers or team leads. Startups often foster collaborative environments where feedback is frequent and accessible, allowing you to quickly build technical and problem-solving skills. You'll likely be exposed to a variety of technologies and development processes, giving you a broad learning experience. Additionally, the fast-paced nature of startups means you'll have opportunities to take on significant responsibilities early in your career, accelerating your growth.

What cities are hiring for Trainee Software Engineer Startup jobs?

Cities with the most Trainee Software Engineer Startup job openings:

What are the most commonly searched types of Software Engineer Startup jobs?

The most popular types of Software Engineer Startup jobs are:

What states have the most Trainee Software Engineer Startup jobs?

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Trainee Software Engineer Startup jobs near you
Infographic showing various Trainee Software Engineer Startup job openings in the United States as of August 2026, with employment types broken down into 1% Internship, 87% Full Time, 8% Part Time, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $139,529 per year, or $67.1 per hour.

Software Engineer

Austin, TX • On-site

Allen Control Systems
Guided Missile and Space Vehicle Manufacturing • 11 - 50 employees
Learn more about Allen Control Systemsexternal

Full-time

Medical, Dental, Vision, PTO

Re-posted 7 days ago

Key responsibilities

  • Design, develop, and maintain high-performance software applications using C++.

  • Debug, troubleshoot, and resolve software defects and performance issues.

  • Collaborate with cross-functional teams and implement best practices in software engineering.

Job description

Software Engineer 

Company Overview:

Allen Control Systems (ACS) is a cutting-edge defense startup, founded by two former Navy electrical engineers with a proven track record in robotics and software. We are developing a small, autonomous gun turret that employs advanced computer vision and control systems to precisely target and neutralize small drones and loitering munitions. Our innovative approach requires overcoming significant technical challenges, making this an exciting and dynamic environment for experienced engineers.

With an engineering-first culture, ACS values technical excellence and innovation. Backed by our founders' successful exits from two previous venture acquired for a combined $180M in 2022, we are committed to ensuring that the groundbreaking technologies we develop will have a real-world impact. 

Position Overview:

We are seeking a highly skilled software engineer, very proficient in C++ or Python coding. 
What You'll Do:

  • Design, develop, and maintain high-performance software applications using C++.
  • Optimize and enhance existing software for efficiency, scalability, and reliability.
  • Collaborate with cross-functional teams, including mechanical, electrical, computer vision, and software engineers.
  • Implement best practices in software engineering, including code reviews, unit testing, and documentation.
  • Debug, troubleshoot, and resolve software defects and performance issues.
  • Work with modern development tools, version control systems (Git), and CI/CD pipelines.
  • Develop algorithms and data structures to solve complex computational problems.
  • Ensure security and compliance standards are met in software development.

What You'll Need:

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
  • Strong proficiency in C++ (C++11/14/17/20) and Python.
  • Experience with multi-threading, concurrency, and performance optimization.
  • Familiarity with software development methodologies and design patterns.
  • Knowledge of system programming, memory management, and debugging tools.
  • Experience with version control systems (Git) and agile development practices.
  • Strong problem-solving skills and ability to work in a fast-paced environment.
  • Professional experience in software development preferred.

You'll Stand Out:

  • Experience with GPU programming (CUDA, OpenCL) or parallel computing.
  • Knowledge of networking protocols and distributed systems.
  • Exposure to machine learning frameworks (TensorFlow, PyTorch) or scientific computing.
  • Experience with DevOps tools (Docker, Kubernetes, CI/CD pipelines)

What We Offer:

  • Competitive salary
  • ACS Equity Package
  • Health, Dental, Vision Insurance
  • Paid Time Off

Allen Control Systems is an Equal Opportunity Employer, providing equal employment opportunities to all employees and applicants for employment. Allen Control Systems prohibits discrimination and harassment of any type 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.

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