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Freelance Algorithmic Trading Software Developer Jobs in Philadelphia, PA

Aveva

Experienced Software Developer

Philadelphia, PA

$124K - $236K/yr

Experienced Software Developer Qualifications: Experience designing and developing in C#/.NET ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

AVEVA

Experienced Software Developer

Philadelphia, PA · On-site

$124K - $236K/yr

Experienced Software Developer Qualifications: Experience designing and developing in C#/.NET ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

Aveva

Software Developer

Philadelphia, PA · Hybrid

$92K - $153K/yr

Software Developer Qualifications: Experience designing and developing in C#/.NET framework ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

AVEVA

Software Developer

Philadelphia, PA · On-site

$92K - $153K/yr

Software Developer Qualifications: Experience designing and developing in C#/.NET framework ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

AVEVA

Experienced Software Developer

Philadelphia, PA · On-site

$124K - $207K/yr

Experienced Software Developer Qualifications: Experience designing and developing in C#/.NET ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

Aveva

Experienced Software Developer

Philadelphia, PA · Hybrid

$124K - $207K/yr

Experienced Software Developer Qualifications: Experience designing and developing in C#/.NET ... Recognizing, articulating, and making technical decisions / trade-offs around multiple dimensions ...

Vantage

Sr. Software Developer - PHP

New Hope, PA

Senior PHP Developer Company: Vantage Labs Vantage Labs is a world leader and innovator in the ... Experience with Machine Learning or Natural Language Understanding algorithms. Benefits: * Medical ...

DP World

OpenEdge Software Developer

Middletown, PA · On-site

We are seeking an experienced OpenEdge Software Developer with expertise in Progress 4GL to support ... About DP World Trade is the lifeblood of the global economy, creating opportunities and improving ...

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All JobsAlgorithmic Trading Software Developer JobsFreelance Algorithmic Trading Software Developer JobsFreelance Algorithmic Trading Software Developer Jobs in Philadelphia, PA

Freelance Algorithmic Trading Software Developer information

See Philadelphia, PA salary details

$48.4K

$112.9K

$167.5K

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

As of Jul 28, 2026, the average yearly pay for freelance algorithmic trading software developer in Philadelphia, PA is $112,861.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,800.00 and $131,200.00 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 popular job titles related to Freelance Algorithmic Trading Software Developer jobs in Philadelphia, PA? For Freelance Algorithmic Trading Software Developer jobs in Philadelphia, PA, the most frequently searched job titles are:
What job categories do people searching Freelance Algorithmic Trading Software Developer jobs in Philadelphia, PA look for? The top searched job categories for Freelance Algorithmic Trading Software Developer jobs in Philadelphia, PA are:
What cities near Philadelphia, PA are hiring for Freelance Algorithmic Trading Software Developer jobs? Cities near Philadelphia, PA with the most Freelance Algorithmic Trading Software Developer job openings:
Freelance Algorithmic Trading Software Developer jobs near you
Software Developer - Global Routing | Experienced Hire

Software Developer - Global Routing | Experienced Hire

Susquehanna International Group, LLP

Philadelphia, PA • On-site

Full-time

Posted 16 days ago

Job description

Overview
Susquehanna International Group is seeking a Software Developer to join our newly formed Global Routing team. This team owns the electronic trading connectivity infrastructure that powers Susquehanna's client-facing brokerage business worldwide. You'll work on high-impact systems that handle order flow across major global markets, collaborating closely with trading, operations, and technology teams in our U.S., European, and Asian offices.
Key Responsibilities
  • Design, develop, and maintain systems that support electronic order routing across global markets and venues.
  • Build and enhance FIX connectivity for clients, brokers, exchanges, and internal systems.
  • Partner with business counterparts in Susquehanna's Europe and Asia offices to support international expansion and onboard new trading relationships.
  • Collaborate with traders, operations, developers, and external vendors to troubleshoot and resolve connectivity issues in a fast-paced environment.
  • Contribute to architectural decisions and advocate for scalable, reliable system design.
  • Document systems, workflows, and integration specifications clearly and thoroughly.

What we're looking for
  • 5+ years of software development experience in C#, Java, or C++.
  • Deep knowledge of the FIX protocol, with hands-on experience implementing or supporting FIX connectivity at a brokerage, trading firm, exchange, fintech, or OMS/EMS vendor.
  • Experience with order routing in a multi-system, global trading environment.
  • Strong analytical skills with the ability to debug complex, distributed systems.
  • Excellent communication skills - you're equally comfortable talking to a quant, a trader, or a client.
  • Familiarity with financial models or algorithmic trading strategies.
  • Experience with low-latency or high-throughput system design.
  • Prior work with connectivity to global exchanges or dark pools.

About Susquehanna
Susquehanna is a global quantitative trading firm powered by scientific rigor, curiosity, and innovation. Our culture is intellectually driven and highly collaborative, bringing together researchers, engineers, and traders to design and deploy impactful strategies in our systematic trading environment. To meet the unique challenges of global markets, Susquehanna applies machine learning and advanced quantitative research to vast datasets in order to uncover actionable insights and build effective strategies. By uniting deep market expertise with cutting-edge technology, we excel in solving complex problems and pushing boundaries together.
If you're a recruiting agency and want to partner with us, please reach out to recruiting@sig.com. Any resume or referral submitted in the absence of a signed agreement will not be eligible for an agency fee.
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