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Fintech Software Engineer Jobs in Trumbull, CT (NOW HIRING)

Sr Software Engineer

Greenwich, CT · On-site

$137K - $181K/yr

Interactive Brokers has been at the forefront of the Fintech space for over 40 years and we pride ... All phases of a multi-tier software development cycle (GUIs, databases, mid-tier, batch ...

Project Manager

Shelton, CT · On-site

$85K - $100K/yr

... fintech software businesses with a long-term ownership mindset. Quality Standard is actively ... Coordinate cross-functional internal teams including Solutions Engineering, Product, and Support

Principal Security Engineer

Greenwich, CT · On-site

$160K - $225K/yr

Secure Software Delivery: Embed security into the SDLC, including secrets management, dependency ... Experience in financial services, fintech, or another regulated industry, with familiarity with ...

Secure Software Delivery: Embed security into the SDLC, including secrets management, dependency ... Experience in financial services, fintech, or another regulated industry, with familiarity with ...

Junior Full Stack Developer

Stamford, CT · On-site

$100K - $120K/yr

... Engineer in the FinTech or technology space. * Proficiency in modern JavaScript/TypeScript and front-end technologies (e.g., React, Angular, or Vue). * Experience with front-end frameworks, component ...

Junior Full Stack Developer

Stamford, CT · On-site

$100K - $120K/yr

... Engineer in the FinTech or technology space. * Proficiency in modern JavaScript/TypeScript and front-end technologies (e.g., React, Angular, or Vue). * Experience with front-end frameworks, component ...

Fintech Software Engineer information

See Trumbull, CT salary details

$62.3K

$144.7K

$201.6K

How much do fintech software engineer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for fintech software engineer in Trumbull, CT is $144,747.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,700.00 and $169,700.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a fintech software engineer?

To thrive as a Fintech Software Engineer, you need strong programming skills (commonly in Java, Python, or C++), a solid understanding of financial systems, and a bachelor’s degree in computer science or a related field. Familiarity with cloud platforms, API development, blockchain technologies, and relevant certifications like AWS Certified Developer or CFA (for those building trading platforms) is highly valuable. Collaboration, problem-solving, and effective communication are standout soft skills for this position. These competencies ensure secure, scalable, and user-focused financial technology solutions in a rapidly evolving industry.

What is a fintech software engineer?

A Fintech Software Engineer designs, develops, and maintains software solutions for financial technology applications, such as payment systems, trading platforms, and banking services. They work with technologies like blockchain, APIs, cloud computing, and data security to ensure reliable and secure financial transactions. This role requires expertise in programming languages like Python, Java, or C++, along with an understanding of financial regulations and compliance. Fintech engineers collaborate with product managers, data scientists, and security experts to innovate and improve financial services.

What are some typical challenges faced by fintech software engineers in their daily work?

Fintech Software Engineers often work on complex systems that must comply with strict security and regulatory standards, which can be challenging when innovating with new technologies. They frequently juggle integrating modern solutions with legacy financial infrastructure, ensuring reliability while maintaining fast deployment cycles. Collaboration with product managers, compliance teams, and data scientists is common, requiring both technical expertise and clear communication. Successfully overcoming these challenges is crucial for delivering secure, high-performance financial applications in the competitive fintech landscape.

What are popular job titles related to Fintech Software Engineer jobs in Trumbull, CT? For Fintech Software Engineer jobs in Trumbull, CT, the most frequently searched job titles are:

Software Engineer (Fulltime - Onsite)

Cleo Consulting

Stamford, CT • On-site

Contractor

Posted 4 days ago


Job description

Job Title: Software Engineer
Location: Stamford, Connecticut
Full-time On-site no remote OR Hybrid

Hiring Manager notes

  • Fast process with responsive HM: Interview process is just a 15-min phone screen, one technical round (live coding), and a behavioral/onsite.
  • High fillability with clear specs: The hiring manager gave extremely specific requirements (T3 stack, Python, LLM APIs) and a concrete example candidate profile.

About

  • Client is an investment firm managing roughly $700 million, primarily a hedge fund with some private equity.
  • Team of 10, split between Fort Worth, Texas, and Stamford, Connecticut.

Role Requirements

  • Looking for a full-stack generalist with experience in the T3 stack (TypeScript, Python, AWS).
  • Proficiency in Python is necessary; familiarity with AI engineering, automation, and finance is a plus.
  • Required: 2 - 7 years of experience in full-stack software development experience, with proficiency in the T3 stack and python
  • Must have: Ability to read and write Python for scripting and automation
  • Experience with relational databases and writing production-quality SQL

Nice to have

  • Experience with AI/LLM APIs to build automations or agentic workflows
  • Finance, fintech, or quant-adjacent company background (including additional major/minor in undergrad)

Compensation and Logistics

  • Role is in-person in Stamford, Connecticut, five days a week.
  • Base salary range from $160,000 to $230,000, with potential discretionary bonus.
  • Interview Process
  • Initial screen, followed by 15-minute phone call, technical round, behavioral round, and on-site interview.
  • Technical assessments may involve building a project in real-time to evaluate problem-solving and coding skills.
  • Traits to avoid Job hopper — multiple short stints (e.g., 5 companies in 7 years)

Questions to ask

  • What's something cool you've built outside of a professional context — whether it's a personal tool, a side project, a sports betting model, or anything else you made just because you were curious?
  • What's your familiarity or interest in financial markets, investing, or other data-driven/quantitative domains like sports analytics?

About Client

  • Client is an investment firm founded 8.5 years ago that manages approximately $700 million in assets. The firm operates as a combination of hedge fund and private equity, with a flexible mandate spanning fundamental equities, credit investing, and private equity investing.
  • Client has delivered top 1 percentile net returns since inception, with high-20s net annualized performance. The firm has grown from $5 million on day one to ~$700 million under management, and counts some of the top universities in the world among its investors.
  • Client Labs is the quantitative research and technology arm supporting the Client Opportunities Fund. Their work spans three core areas:
  • Portfolio Support & Analytics: Serving as a research partner to the portfolio manager and fundamental analyst team, identifying areas of strength and weakness through rigorous quantitative analysis and building tools to improve core fund performance.
  • Risk Management: Designing and deploying custom factor hedges, constructing bespoke hedge baskets tailored to the fund's specific risk profile.
  • Alpha Factor Research: Developing proprietary alpha factors using fundamental and alternative data sources to identify high- and low-quality businesses, with potential to operate as standalone systematic investment strategies.
  • The firm is investing heavily in building proprietary software tools and AI integrations across every aspect of the research process — from idea generation to position sizing to LLM integrations — creating real technological edge in investment research.

“Cleo Consulting is an equal opportunity employer (Minorities/Women/Veterans/Disabled)