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Freelance Software Engineer Startup Jobs (NOW HIRING)

Brevian.ai

Software Engineer

Sunnyvale, CA · On-site

Software Engineer BREV/AN is at the forefront of revolutionizing how businesses leverage artificial ... You get to experience the 0-1 of building a startup, working with talented engineers from ...

Allen Control Systems

Software Engineer

Austin, TX · On-site

Allen Control Systems (ACS) is a cutting-edge defense startup developing advanced technologies for targeting and neutralizing drones. They are seeking a highly skilled software engineer proficient in ...

Allen Control Systems

Software Engineer

Austin, TX · On-site

Allen Control Systems (ACS) is a cutting-edge defense startup developing autonomous gun turret technology. They are seeking a highly skilled software engineer proficient in C++ or Python to design ...

Breeze

Senior Software Engineer

New York, NY · On-site

$150K - $165K/yr

As a Software Engineer at Breeze, you'll take ownership of building and scaling the systems that ... This is a hands-on opportunity to have a major impact at a fast-moving, Sequoia-backed startup.

Allen Control Systems

Software Engineer

Austin, TX · On-site

Allen Control Systems (ACS) is a cutting-edge defense startup focused on developing an autonomous ... They are seeking a highly skilled robotics software engineer proficient in C++ or Python to design ...

Breeze

Senior Software Engineer

New York, NY

$150K - $165K/yr

Adapt to new challenges in a dynamic startup environment where we move fast and innovate constantly. What We're Looking For: * At least 5 years of professional experience in software engineering ...

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 an autonomous gun ...

Beli

Software Engineer

New York, NY

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 ...

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 ...

ProNexus

Software Engineer

New York, NY · On-site

We are hiring on behalf of a venture-backed AI startup building intelligent software that automates ... Its engineering team is small, product-oriented, and responsible for taking ideas from early ...

Allen Control Systems

Software Engineer

Austin, TX

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 ...

ProNexus

Software Engineer

San Francisco, CA · On-site

We are hiring on behalf of a venture-backed AI startup building intelligent software that automates ... Its engineering team is small, product-oriented, and responsible for taking ideas from early ...

ProNexus

Software Engineer

New York, NY · On-site

We are hiring on behalf of a venture-backed AI startup building intelligent software that automates ... Its engineering team is small, product-oriented, and responsible for taking ideas from early ...

ProNexus

Software Engineer

We are hiring on behalf of a venture-backed AI startup building intelligent software that automates ... Its engineering team is small, product-oriented, and responsible for taking ideas from early ...

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 ...

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 ...

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 ...

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Freelance Software Engineer Startup information

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

As of Jul 21, 2026, the average yearly pay for freelance software engineer startup in the United States is $104,863.00, according to ZipRecruiter salary data. Most workers in this role earn between $65,000.00 and $120,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Software Engineer at a startup, and why are they important?

To thrive as a Freelance Software Engineer at a startup, you need strong programming skills, experience with software development lifecycles, and a portfolio demonstrating previous project success, often backed by a relevant degree or certifications. Familiarity with version control systems like Git, cloud platforms (e.g., AWS, Azure), and agile project management tools is common. Outstanding problem-solving abilities, self-motivation, and effective communication set top freelancers apart in this dynamic environment. These skills and qualities ensure you can deliver high-quality solutions, adapt quickly to changing requirements, and collaborate successfully with lean startup teams.

What are some common challenges freelance software engineers face when working with startups, and how can they overcome them?

Freelance software engineers working with startups often encounter challenges such as rapidly changing project requirements, tight deadlines, and limited resources. Startups may pivot their business models, requiring engineers to adapt quickly and learn new technologies or frameworks on the fly. To overcome these challenges, it’s important to maintain clear and regular communication with stakeholders, set realistic expectations, and use agile methodologies to manage changing priorities. Building a strong professional network can also provide support and collaboration opportunities when navigating the fast-paced startup environment.

What is the difference between Freelance Software Engineer Startup vs Freelance Software Developer Agency?

AspectFreelance Software Engineer StartupFreelance Software Developer Agency
CredentialsTypically requires coding skills, portfolio, sometimes certificationsSimilar credentials, often with additional project management experience
Work EnvironmentIndependent, project-based, flexible hoursCollaborative, often part of a team or agency structure
Employer & Industry UsageClients range from startups to small businesses; used in tech and software sectorsClients include larger companies and agencies; used across various industries
Search & Comparison IntentLooking for freelance startup projects or flexible software rolesComparing freelance options with agency-based work

Both roles involve independent software development, but Freelance Software Engineer Startup focuses on individual projects for startups, offering flexibility and direct client interaction. Freelance Software Developer Agency typically involves working with an agency that manages multiple clients, providing a broader range of projects and team collaboration.

What is a Freelance Software Engineer at a Startup?

A Freelance Software Engineer at a startup is an independent contractor who develops, tests, and maintains software solutions for new or growing companies. Unlike full-time employees, freelancers work on a project or hourly basis and may support multiple startups simultaneously. Their work often involves building prototypes, scaling products, or implementing new features quickly to meet the fast-paced needs of startups. Freelancers bring specialized expertise and flexibility, which can be vital for startups looking to innovate and adapt rapidly.
More about Freelance Software Engineer Startup jobs
What cities are hiring for Freelance Software Engineer Startup jobs? Cities with the most Freelance 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 Freelance Software Engineer Startup jobs? States with the most job openings for Freelance Software Engineer Startup jobs include:
What job categories do people searching Freelance Software Engineer Startup jobs look for? The top searched job categories for Freelance Software Engineer Startup jobs are:
Freelance Software Engineer Startup jobs near you
Infographic showing various Freelance Software Engineer Startup job openings in the United States as of July 2026, with employment types broken down into 96% Full Time, 1% Part Time, and 3% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $104,863 per year, or $50.4 per hour.

Software Engineer

Brevian.ai

Sunnyvale, CA • On-site

Full-time

Re-posted 4 days ago

Job description

BREV/AN is at the forefront of revolutionizing how businesses leverage artificial intelligence.Sales has evolved. CRMs are fading. Manual tasks are history. Brevian empowers teams with real-time intelligence, automated workflows, and seamless execution.
Software Engineer
BREV/AN is at the forefront of revolutionizing how businesses leverage artificial intelligence.Sales has evolved. CRMs are fading. Manual tasks are history. Brevian empowers teams with real-time intelligence, automated workflows, and seamless execution.
Job title
Software Engineer
Position overview
We are looking for a seasoned Backend Engineer to join our Engineering team. The ideal candidate will have a strong background in developing scalable, high-performance web applications, with a particular focus on enterprise application. You'll work in a deeply iterative, collaborative, fast-paced environment with a team that takes pride in their craft and enjoys building software that delights our customers.
Key responsibilities
  • Design and build efficient and reusable systems that drive complex applications
  • Plan and deploy infrastructure necessary to build, test, and deploy our products
  • Ensure the security and integrity of application data in compliance with industry standards.
  • Collaborate with cross-functional teams to identify and resolve performance bottlenecks.

Qualifications
Basic Qualifications
  • Bachelor's degree in Computer Science, Engineering, or a related field.
  • Have at least 8 years of experience building production apps at scale
  • Experience of Software development in general purpose programming languages: Javascript, Typescript, Python, etc
  • Are comfortable building complex applications and systems from the ground up.
  • Experience with software development lifecycle (SDLC) practices, including coding standards, code reviews, source control management, build processes, and testing.

Preferred Qualifications
  • Knowledge of Large Language Models (LLMs) is a significant plus.
  • Strong analytical skills and the ability to tackle issues with innovative solutions.
  • Ability to work in a fast-paced and dynamic environment and have a growth mindset.

Why BREVIAN?
We are a very well funded seed stage startup. You get to experience the 0-1 of building a startup, working with talented engineers from Databricks, Confluent, Microsoft.
We offer generous compensation, equity, benefits, perks and flexible time off.
This is an exciting opportunity to ensure generative AI delivers tremendous value safely and securely. Please contact us if you have the skills and passion for this position at the cutting edge of AI.

Apply