Senior Software Developer
Capstone Search Advisors
Senior Software Developer
Rowayton, CT 06853
Fairfield County Hedge Fund is seeking a senior software developer to join their Technology team. This individual will work on Windows client and server projects related to electronic trading order execution systems. This position involves working in a small team and having close interaction with both development peers and business users. Responsibilities include working closely with developers and business users to gather requirements and scope projects, analyzing existing systems for robustness and performance improvements, presenting ideas for system improvements, both technical and business related, producing product specifications and training peers and users on system use and maintenance, unit, integration, and functional testing, and maintaining and supporting the systems once released to UAT and production.
Requirements include 5 plus years of relevant experience, C#, OOP, Concurrency, Real-time Systems, Automated Unit Testing, SOA experience with all phases of the software development life cycle, FIX Protocol, Electronic Trading Experience, strong communication skills, familiarity with the Appia FIX Engine (preferred), familiarity with Software Development related AI Tools (preferred), Python, SQL (preferred).
Opening Doors to Incredible Opportunities: For over two decades, Capstone has been working with elite organizations from Fortune 500s to start-ups in some of the most competitive market sectors. Because of our deep connections, we're able to match you with the most relevant and prestigious career opportunities available — whether you're an executive or manager, we'll help you reach your professional goals.
Protect Yourself from Job Scams We've seen an increase in scam attempts targeting job seekers. Please know that our team will never request sensitive personal information—such as your Social Security number or banking details—outside of our secure onboarding system. This system is the only method we use to collect the information necessary for employment. All official communication will come from verified company email addresses or phone numbers. If something seems suspicious, trust your instincts and don't engage. Learn how to spot job scams and protect yourself here.
Equal Opportunity Employer: Capstone provides equal employment opportunities to all employees and applicants for employment and 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. This applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training. We celebrate diversity and are committed to creating an inclusive environment for all employees. Capstone will provide reasonable accommodations for people with disabilities in all parts of the hiring and employment process.
$150k - $240k
...in the responsibility of strengthening those around them. Description Graham Capital Management, L.P. is seeking a senior software developer to join our Technology team. This individual will work on Windows client and server projects related to electronic trading...SeniorHourly payWork at officeMonday to Friday$150k - $200k
...Senior Software Engineer Vantage Group Holdings Ltd. (Vantage) was established in late 2020 as a re/insurance partner designed for the... ...Engineering and will be responsible for a small team of developers. The base salary expectation for this role is between $15...SeniorRemote workFlexible hours- ...Senior Software Engineer/Developer Our client is an investment adviser to a multi-strategy hedge fund that has operated across decades and many market cycles. Currently, we are actively looking for a Senior Software Engineer/Developer to join their team. Only those...Senior
- ...Senior Software Developer- Python Greenwich, CT Company Overview Interactive Brokers Group, Inc. is a global financial services company headquartered in Greenwich, CT, USA, with offices in over 15 countries. We have been at the forefront of financial innovation...SeniorWork at officeRemote work
$67k - $136.8k
...The opportunity As an FSO DevOps Engineer Senior Analyst, you’ll be based in our Service Delivery Center... ...analysis of specific business requirements, design, develop, integrate, test, and deploy distributed software applications. You will deliver high qualify...SeniorSummer holidayFlexible hours$91k - $321.5k
...technologies and techniques to design and develop robust data solutions for clients. They... ...that drive operational excellence. As a Senior Manager you will serve as a strategic... ...Science, Data Processing/Analytics/ Science, Software Engineering, Artificial Intelligence and...SeniorFull timeH1b- ...Senior Cloud Platform Engineer Greenwich, CT Company Overview Interactive Brokers Group, Inc. is a global financial services... ...programming languages such as Java, Python, Node.js Experience developing and maintaining IaC for cloud-based solutions Experience...SeniorWork at officeRemote work
$77k - $202k
...leveraging advanced technologies and techniques to design and develop robust data solutions for clients. They play a crucial role in... ...implement data architecture strategies that meet business needs. As a Senior Associate, you analyze complex problems, mentor others, and...SeniorFull timeH1b$72k - $184.44k
...analytics and technology solutions at PwC will assist clients in developing solutions that help build trust, drive improvement, and detect,... ...of AI solutions, securing compliance and governance. As a Senior Associate, you will lead efforts in managing AI/ML controls while...SeniorFull timeH1b- ...field, offering specialized solutions and expert guidance tailored to their clients' needs. They are looking for a Software Engineer who will design, develop, and maintain high-quality software solutions that meet the needs of our client's users. This is an onsite...Senior
$100k - $154k
...We are looking for a highly skilledSenior Software Engineer to be a core technical pillar of our Data Management team. Reporting to... .... Technical Mentorship: Provide daily guidance to junior developers, conducting deep-dive code reviews to ensure best practices in...SeniorApprenticeshipImmediate startWork from homeWorldwide$105.8k - $174.8k
...Engineering Physical AI Engineering Consultant, Senior Consultant The opportunity Our... ...paced environment and the opportunity to develop your own career path for your unique... ...robotics, digital twin applications, and software engineering. We'll look to you to provide...SeniorFull timeWork experience placementSummer holidayFlexible hours$103.71k - $138.28k
...formulate system requirements. •Evaluates and recommends future technologies and methodologies that will enhance future capabilities. •Develop and execute test plans and procedures based upon system security and functional requirements. •Analyzes, develops, recommends,...Full timeTemporary workRemote work- ...Senior Software Engineer Greenwich, CT Company Overview Interactive Brokers Group, Inc. is a global financial services company headquartered... ...your team: The successful candidate will help design, develop, and maintain our Web API platform, which currently provides...SeniorWork at officeRemote work
$118k - $178k
...(*Comscore, Total Visits, March 2025) Day to Day As a Software Engineer III on the AI Gateway & Guardrails team at Indeed, you... ...safeguards AI actions. You will work alongside experienced engineers developing features for two core services; 1) AI Gateway, Indeed’s...SeniorWork experience placementLocal area- ...solving and decision making across commercial and operational domains. We're seeking a Senior Software Architect who will split their time between building our platform strategy and developing advanced AI solutions. You'll architect data pipelines that feed the AI...SeniorContract workRemote workRelocation package
$102.5k - $187.9k
...everyone’s starting point is different. We would love to hear your story. The opportunity As a Senior Full Stack Software Engineer , you will independently develop, test, and maintain high‑quality software solutions across the technology stack. You will work...SeniorFull timeSummer holidayLocal areaFlexible hours$124k - $280k
...individuals analyse client needs, implement software solutions, and provide training and... ...how things fit together. Your ability to develop and sustain high performing, diverse, and... ...impactful Oracle technology solutions. As a Senior Manager you shall guide large projects, innovate...SeniorFull timeH1b- ...Overview : The Multiple Myeloma Research Foundation (MMRF) has developed Virtual Lab, a next-generation cloud research platform and... ...will work within a highly collaborative environment involving software engineers, computational scientists, and translational...InternshipLocal areaRemote work
$106.9k - $176.5k
...Engineering AI/Machine Learning Engineer, Senior Consultant The opportunity... ...paced environment and the opportunity to develop your own career path for your unique skills... ...world of modern data science, analytics, and software engineering. We'll look to you to...SeniorFull timeWork experience placementSummer holidayFlexible hours$350k
...testing approaches. This position sits at the intersection of software engineering, testing strategy, and platform architecture, with... ...maintain scalable test automation platforms for complex systems Develop diagnostic and validation tools across both production and QA...Senior2 days per week$200k - $250k
...Senior Software Engineer - Analytics Middle Office Chicago, New York, Austin, Greenwich DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We...SeniorTemporary workWork at officeFlexible hours$100k - $200k
...Quantitative Developer This role would be specifically in the Quant Strategies Group at Verition Fund Management LLC ("Verition"), a multi-strategy, multi-manager hedge fund founded in 2008 with 8.7B in AUM. As a quant developer of one of our world class quant trading...- KING INDUSTRIES JOB DESCRIPTION Senior Process /Project Engineer Location - Norwalk, CT King Industries is seeking a Senior Process/Project Engineer to join our Engineering team. The ideal candidate will have a degree in Chemical Engineering and at least 15 years of experience...SeniorFull time
$128.19k - $184.01k
...place. You will work at the cutting edge of technology to design, develop, and maintain the Poe iOS app. This includes collaborating with... ...to enhance the overall user experience Own the entire software development process from timeline estimation to coding, testing...Remote jobFull time- ...Our client is seeking a Trading Services Application Developer to join their growing technology team within a fast-paced financial services environment. The ideal candidate will bring a blend of development expertise, analytical thinking, and strong communication skills...
- ...MS Teams Developer Note: MS Teams Developer Platform experience Mandatory Mandatory Requirements ~3+ years of hands-on.NET Development experience ~1+ years of hands on development experience on MS Teams Developer Platform ~ Hands-On Experience working...Work at office
- ...Job Description Job Description Senior Project Engineer – Structural Steel – Norwalk, CT Why this role is good for you You’ll step into a leadership role on structural steel projects, handling technical oversight, cost reporting, and documentation while preparing...Senior
$119k - $299.93k
...analytics and technology solutions at PwC will assist clients in developing solutions that help build trust, drive improvement, and detect,... ..., setting architecture standards and reusable patterns. As a Senior Manager, you will serve as a strategic advisor, aligning clients...SeniorFull timeH1b- ...and roadmaps for business intelligence, software engineering, DevOps, cloud platforms, and... ...engineers, architects, and delivery teams. Develop reference architectures, technical... ...architecture, solution architecture, or senior engineering leadership roles. ~ Proven...Full timeContract workPart timeLocal areaImmediate startRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Developer. Be the first to apply!
- software engineer internship remote Norwalk, CT
- startup software engineer Norwalk, CT
- part time software developer remote Norwalk, CT
- senior software engineer remote Norwalk, CT
- software engineer Norwalk, CT
- junior software developer remote Norwalk, CT
- software developer positions Norwalk, CT
- software developer Norwalk, CT
- remote entry level software developer Norwalk, CT
- software engineer full time Norwalk, CT





