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Freelance Software Engineer Jobs in Boston, MA (NOW HIRING)

Mendix

Sr. Content Marketing Manager

Boston, MA

Mentor other content marketers and manage relationships with freelance writers and agencies ... Background in data engineering, software development, or a technical field -- or deep editorial ...

Mendix

Sr. Content Marketing Manager

Boston, MA

Mentor other content marketers and manage relationships with freelance writers and agencies ... Background in data engineering, software development, or a technical field - or deep editorial ...

Mendix

Sr. Content Marketing Manager

Boston, MA · On-site +1

Mentor other content marketers and manage relationships with freelance writers and agencies ... Background in data engineering, software development, or a technical field - or deep editorial ...

Mendix

Sr. Content Marketing Manager

Boston, MA · Remote

$102K - $184K/yr

Mentor other content marketers and manage relationships with freelance writers and agencies ... Background in data engineering, software development, or a technical field -- or deep editorial ...

Hstar Technologies

Industrial Designer

Cambridge, MA

$141K/yr

Hstar is seeking a part time, consultant or freelance industrial designer to design medical robotic ... to engineering team for prototype making; - Coordinating with engineering team to ensure hardware ...

Emerson College

Emerson Stage Overhire

Boston, MA · On-site

$19 - $25.25/hr

Emerson Stage maintains an overhire list of experienced freelance theatre technicians to assist ... and programming lighting fixtures (familiarity with ETC EOS software is highly desirable)

Emerson College

Emerson Stage Overhire

Boston, MA

$19 - $25.25/hr

Emerson Stage maintains an overhire list of experienced freelance theatre technicians to assist ... and programming lighting fixtures (familiarity with ETC EOS software is highly desirable)

Formlabs

Senior Video Producer

Somerville, MA

We're a team of hands-on builders, engineers, and innovators reinventing how the world makes ... Proficient in industry-standard post-production software (DaVinci Resolve strongly preferred), with ...

Formlabs

Senior Video Producer

Somerville, MA · On-site

We're a team of hands-on builders, engineers, and innovators reinventing how the world makes ... Proficient in industry-standard post-production software (DaVinci Resolve strongly preferred), with ...

All JobsSoftware Engineer JobsFreelance Software Engineer JobsFreelance Software Engineer Jobs in Boston, MA

Freelance Software Engineer information

See Boston, MA salary details

$26.1K

$113.9K

$205.3K

How much do freelance software engineer jobs pay per year?

As of Aug 2, 2026, the average yearly pay for freelance software engineer in Boston, MA is $113,909.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,600.00 and $130,400.00 per year, depending on experience, location, and employer.

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

To thrive as a Freelance Software Engineer, you need strong programming skills, proficiency in relevant languages (such as Python, JavaScript, or Java), and a good understanding of software development methodologies. Familiarity with version control systems like Git, cloud platforms, and project management tools is highly beneficial, along with a portfolio or certifications to demonstrate expertise. Excellent communication, time management, and self-motivation are critical soft skills for managing client relationships and project deadlines independently. These competencies are essential for delivering high-quality work, maintaining client trust, and sustaining a successful freelance business.

What Does a Freelance Software Engineer Do?

Freelance software engineers design and develop applications for clients on a short- or long-term contract basis. In this role, your job duties may include coordinating with systems analysts and programmers to determine the scope of the project, developing new or modifying existing software according to your client's needs and expectations, and analyzing computer specifications and layouts to build a better system. You also troubleshoot and update the application when necessary. Freelance software engineers may work remotely from home or they may occasionally travel to their client’s office to perform job duties. You may work primarily with one client at a time, or you may choose to contract with many different clients.

Can I pay someone to code for me?

A freelance software engineer can be hired to write code or develop software on a project basis. This is common for tasks like app development, website creation, or automation, often involving remote collaboration and clear project specifications. Hiring freelancers allows flexibility but requires careful communication of requirements and expectations.

Can a software engineer be a freelancer?

Yes, a software engineer can work as a freelancer by offering services such as coding, app development, or consulting independently. Freelance software engineers typically use online platforms, manage their own schedules, and require skills in communication and project management.

Can you make $500,000 as a software engineer?

Senior freelance software engineers with specialized skills, extensive experience, and a strong client network can potentially earn $500,000 or more annually. Achieving this level often requires working on high-value projects, consulting, or developing products with significant market demand. Income varies based on expertise, location, and workload.

How do freelance software engineers typically manage client communication and project expectations?

Freelance software engineers usually handle client communication directly, which means clear and regular updates are crucial for building trust and ensuring project success. Setting expectations early—such as deliverables, timelines, and feedback processes—helps prevent misunderstandings and scope creep. Many freelancers use project management tools, structured status reports, and scheduled check-ins to keep projects on track. Balancing multiple clients can be challenging, so effective time management and proactive communication are key to maintaining client satisfaction and repeat business.

What is a freelance software engineer?

A freelance software engineer is an independent professional who offers software development services to clients on a contract or project basis, rather than being a full-time employee at a company. They may work on a variety of projects, such as building websites, creating apps, or developing custom software solutions. Freelance software engineers typically manage their own schedules, seek out clients, and are responsible for handling business operations like billing and taxes. This flexible career path allows them to work with different clients and industries, often remotely or from any location.

Can you make 10k a month freelancing?

Freelance software engineers can potentially earn $10,000 or more per month, especially with specialized skills, a strong client base, and high-demand technologies like cloud computing or AI. Achieving this income level often requires building a solid reputation, efficient project management, and consistent work volume, which can vary based on experience and market conditions.
More about Freelance Software Engineer jobs
What are the most commonly searched types of Software Engineer jobs in Boston, MA? The most popular types of Software Engineer jobs in Boston, MA are:
What are popular job titles related to Freelance Software Engineer jobs in Boston, MA? For Freelance Software Engineer jobs in Boston, MA, the most frequently searched job titles are:
What job categories do people searching Freelance Software Engineer jobs in Boston, MA look for? The top searched job categories for Freelance Software Engineer jobs in Boston, MA are:
What cities near Boston, MA are hiring for Freelance Software Engineer jobs? Cities near Boston, MA with the most Freelance Software Engineer job openings:
Freelance Software Engineer jobs near you
Infographic showing various Freelance Software Engineer job openings in Boston, MA as of July 2026, with employment types broken down into 66% Full Time, 17% Part Time, and 17% Contract. Highlights an 100% In-person job distribution, with an average salary of $113,909 per year, or $54.8 per hour.

Senior Software Engineer - Agent Evaluation - Freelance/Remote 100+ openings

Braintrust

Boston, MA • On-site

$133K - $175K/yr

Other

Posted 5 days ago

Job description

Open to candidates in the North America, South America, Asia and Europe.
Please submit your CV in English and indicate your level of English proficiency.

Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.


What this opportunity involves 

We're building a dataset to evaluate AI coding agents - how well a model handles real-world developer tasks.

You'll create challenging tasks and evaluation criteria within realistic simulated environments:

  • Build realistic developer environments - a virtual company with codebase, infrastructure, and context (tickets, docs, conversations) that forms a believable development history
  • Design tasks from intermediate states of these environments - craft the prompt, define what "solved" means, and ensure the task is solvable by an AI agent
  • Write tests that verify agent solutions - accept all valid approaches and reject incorrect ones, neither too strict nor too lenient
  • Iterate on tasks and tests based on QA feedback - review agent solutions, analyze failures, and refine until the evaluation is fair and robust

What this is NOT

  • Not data labeling
  • Not prompt engineering
  • Not writing code from scratch - the agent writes most of the code; you guide and evaluate

What we look for

  • 5+ years in software development
  • Core stack: Python (FastAPI), JavaScript/TypeScript (React), Docker, Postgres, Kafka, Redis
  • Experience writing tests (functional, integration)
  • English proficiency - B2+


Why this is hard 

Frontier models are already good at coding. Creating a task that genuinely challenges the best models is non-trivial. You need to deeply understand where models fail and what scenarios reveal the difference between a good and a bad solution. Tasks have many valid solutions - writing tests that accept all correct solutions and reject incorrect ones is harder than it sounds.


How it works

Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid


Effort estimate

Tasks for this project are estimated to take 20 hours to complete, depending on complexity. This is an estimate and not a schedule requirement; you choose when and how to work. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.


Hiring & Onboarding Process

The process is designed to move quickly and typically includes the following steps:

  1. App review and invitation to a virtual project introduction session (approximately 30 minutes)
  2. Platform registration and identity verification
  3. Technical assessment (approximately 35 minutes)
  4. Background check (completed at no cost to candidates)
  5. Onboarding and project-specific training tasks
  6. Begin production work!
Additional Requirements
  • Willingness to complete identity verification as part of the onboarding process.
  • Ability to complete a technical assessment.
  • Willingness to join and participate in Discord, which will be used for project communication and updates.
  • Successful completion of a background check is required prior to onboarding.
  • Reliable internet connection and ability to communicate effectively in a remote environment.

Apply