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Freelance Algorithmic Trading Software Developer Jobs in San Jose, CA

Databento

Software Engineer (C++/Rust)

San Francisco, CA · On-site +1

... developer experience. Our team includes alumni of Two Sigma, Citadel Securities, Flow Traders ... An interest in financial data or algorithmic trading. Notice about phishing scams Be cautious of ...

Databento

Software Engineer (C++/C#)

San Francisco, CA · On-site +1

Experience designing APIs with a strong focus on intuitive, developer-friendly interfaces ... An interest in financial data or algorithmic trading. Notice about phishing scams Be cautious of ...

Reqroute, Inc

Sr. ROS Software Developer

Sunnyvale, CA · On-site

$60 - $65/hr

... algorithms into the real-time platform. The work is hands-on, systems-level C++/Python on Ubuntu ... software engineering experience, with significant work on embedded Linux / robotics platforms ...

Info Way Solutions

Software Developer (C++)

Fremont, CA · On-site

$53.75 - $72.50/hr

... algorithm performance testing • Develops domain knowledge based on technical and academic ... Biomedical Engineering with 3+ years of experience in software development • Experience ...

Apple

Systems Software Developer

Sunnyvale, CA · On-site

This would include contributing to projects in low-level software and algorithms, building CI/CD ... or developer-facing tooling Proficiency in Python and shell scripting to build automation and ...

Apple

Systems Software Developer

Sunnyvale, CA

$150K - $277K/yr

This would include contributing to projects in low-level software and algorithms, building CI/CD ... developer productivity metrics. Debug and resolve failures across build, test, and deployment ...

Nokia

EDA Software Developer

Sunnyvale, CA · On-site

Strong understanding of data structures and algorithms, with the ability to analyze performance * Experience with software development on Linux platforms * Excellent programming skills in C/C++ are ...

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All JobsAlgorithmic Trading Software Developer JobsFreelance Algorithmic Trading Software Developer JobsFreelance Algorithmic Trading Software Developer Jobs in San Jose, CA

Freelance Algorithmic Trading Software Developer information

See San Jose, CA salary details

$56.3K

$131.1K

$194.5K

How much do freelance algorithmic trading software developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for freelance algorithmic trading software developer in San Jose, CA is $131,081.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,500.00 and $152,400.00 per year, depending on experience, location, and employer.

What is the difference between Freelance Algorithmic Trading Software Developer vs Quantitative Analyst?

AspectFreelance Algorithmic Trading Software DeveloperQuantitative Analyst
CredentialsProgramming skills, trading platform knowledge, possibly certifications like CQFMathematics, statistics, finance degrees, certifications like CFA
Work EnvironmentIndependent, remote, project-basedOffice-based, team-oriented, financial institutions
Industry UsageDevelops trading algorithms for clients or own tradingAnalyzes financial data to inform trading strategies

While both roles involve quantitative skills and financial markets, Freelance Algorithmic Trading Software Developers focus on building and implementing trading algorithms independently, often working remotely. Quantitative Analysts typically analyze data within financial firms to develop trading strategies, often working in team environments. The roles overlap in technical skills but differ in scope and work setting.

What are the most commonly searched types of Algorithmic Trading Software Developer jobs in San Jose, CA?

The most popular types of Algorithmic Trading Software Developer jobs in San Jose, CA are:

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For Freelance Algorithmic Trading Software Developer jobs in San Jose, CA, the most frequently searched job titles are:

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Software Engineer (C++/Rust)

Databento

San Francisco, CA • On-site, Remote

Full-time

Re-posted 11 days ago

Job description

The financial industry is growing at a record pace, but our data providers are still stuck in the past — with cumbersome onboarding processes, complicated APIs, slow infrastructure, and expensive licensing costs.

Databento is the market data platform for modern finance. The company provides real-time and historical data across futures, options, and equities through a unified API. By owning the entire market data stack end-to-end, Databento is the first platform of its kind to combine the performance and reliability demanded by the world's leading trading firms with a dramatically simpler developer experience. Our team includes alumni of Two Sigma, Citadel Securities, Flow Traders, Tower Research, PDT Partners, SIG, and other top quantitative firms.

We're looking for a midlevel or senior IC to join our core engineering team. Our team is responsible for all things C/C++ and Rust, and the most performance-sensitive parts of our codebase. You'll be working with nearly 20 PB of data, with thousands of bare metal CPU cores at your disposal.

Responsibilities
  • Design, develop, and maintain high-performance server applications in C/C++ and Rust.
  • Write message parsers and feed handlers for direct market data feeds from trading venues.
  • Optimize existing codebase for high throughput (millions of messages per second, up to 40+ gigabits) and low latency (measured in nanoseconds).
  • Implement tools and libraries for petabyte-scale data processing and analysis.
  • Collaborate with the systems team to implement best practices for build, deployment, CI/CD.
  • Implement monitoring and improve application uptime.
  • Ensure smooth feature rollouts and updates.
Preferred background
  • 5+ years of full-time software engineering experience, preferably at a trading firm, tech company, or high-growth startup.
  • Strong proficiency in C/C++ or Rust.
  • Knowledge of systems programming, algorithms, data structures, multithreading, networked I/O, serialization, CPU architecture, kernel, and compilers.
  • Experience working with multiprocess environments.
  • Comfortable with lldb/gdb.
  • Good communication skills and work ethic for a remote workplace.
  • An interest in low-level optimization and performance engineering.
  • An interest in financial data or algorithmic trading.
Notice about phishing scams

Be cautious of phishing scams impersonating Databento that offer fake job interviews and request purchases. Official emails come only from @databento.com or us.greenhouse-mail.io (our ATS). Any other domains (e.g., databento-careers.com, databento.online) are fraudulent.

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Databento, Inc. provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity or expression, veteran status, or genetics. In addition to federal law requirements, we comply with applicable state and local laws governing nondiscrimination in every location where we operate. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. Pursuant to applicable laws, we consider qualified applicants with arrest or conviction records. If you need an accommodation, please let us know.

Our recruiting data suggests that underrepresented applicants often downplay their skills. Even if your experience doesn't exactly match the qualifications listed, we still want to hear from you. Please apply! 

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