Blockchain Or Web3 Solidity Defi Developer Engineer Jobs in Connecticut

At Franklin Templeton, we're advancing our industry forward by developing new and innovative ways to help our clients achieve their investment goals. Our dynamic firm spans asset management, wealth management, and fintech, offering many ways to help investors make progress toward their goals. Our talented teams working around the globe bring expertise that's both broad and unique. From our welcoming, inclusive, and flexible culture to our global and diverse business, we provide opportunities to help you reach your potential while helping our clients reach theirs.

Come join us in delivering better outcomes for our clients around the world!

Applicants for employment must have work authorization that does not now, or in the future, require sponsorship of a visa for employment in the United States.This position is REMOTE in New York or Florida or HYBRID in Ft. Lauderdale.ABOUT THE DEPARTMENT

The Digital Assets Technology group builds blockchain-based infrastructure shaping the future of asset management and capital markets. The team consists of experienced engineers who collaborate closely with product and design partners to research, experiment, and deliver secure solutions that tokenize securities across multiple blockchain platforms. We operate at the intersection of institutional finance and emerging technology, delivering production-grade systems that serve real-world regulated assets.

Joining the team offers exposure to cutting-edge financial technologies, complex multi-chain engineering challenges, and meaningful industry impact at one of the world's largest asset managers.

ROLE OVERVIEW

We are looking for a Blockchain Development Engineer who combines deep smart contract expertise with fluency in AI-assisted development practices. This is not a role where AI tools are optional or aspirational - we expect you to use AI coding assistants, LLM-driven testing and review workflows, and generative AI tooling as core parts of your daily engineering process. Your blockchain fundamentals must be strong enough that you can critically evaluate and improve AI-generated output in a domain where deployed bugs are irreversible and security is non-negotiable.

HOW YOU WILL ADD VALUE

AI-Augmented Development

• Use AI coding assistants (Codex, Cursor, Claude Code, or equivalent) as a primary development accelerator across the full lifecycle - prototyping, implementation, testing, and documentation

• Apply LLM-driven workflows for automated code review, test generation, security analysis, and architectural reasoning on smart contract codebases

• Critically evaluate AI-generated Solidity and Rust code for security vulnerabilities, gas optimization issues, and compliance gaps - recognizing that AI output in smart contract contexts requires expert human judgment

• Identify and implement opportunities to integrate AI tooling into team workflows, CI/CD pipelines, and quality assurance processes

• Stay current with rapidly evolving AI-assisted development tools and techniques, evaluating new capabilities for team adoption

Blockchain Engineering

• Design, develop, and deploy smart contracts across EVM-compatible networks and Stellar, with a focus on security, efficiency, and regulatory compliance

• Build and maintain multi-chain deployment infrastructure and tooling to support the department's blockchain footprint

• Test and audit smart contracts using formal verification tools and security frameworks (Foundry, Slither, or equivalent)

• Maintain and upgrade deployed contracts with backward compatibility, migration strategies, and rigorous change management

• Collaborate with engineers, product partners, and designers to translate business requirements into robust on-chain solutions

WHAT WILL HELP YOU BE SUCCESSFUL

Required Experience

• 5+ years of software engineering experience on mission-critical or production-grade systems

• 3+ years of hands-on blockchain development and smart contract deployment

• Demonstrated, ongoing use of AI-assisted development tools (Copilot, Cursor, Claude Code, or similar) as a core part of the engineering workflow - not experimental or occasional

• Bachelor's degree in Computer Science, Engineering, or equivalent professional experience

Required Technical Skills

• Solidity: Production-level proficiency; experience writing, deploying, and auditing smart contracts on EVM-compatible chains (Ethereum, Avalanche, Polygon, Arbitrum, or similar)

• Stellar: Working knowledge of the Stellar network is desired.

• TypeScript/JavaScript: Proficiency in full-stack development with Node.js and modern frameworks

• AI/LLM Tooling: Hands-on experience using AI assistants for code generation, review, debugging, and test authoring; ability to craft effective prompts and evaluate output quality in the context of blockchain security

• Testing & Security: Experience with smart contract testing frameworks.

Preferred Qualifications

• Experience with permissioned or hybrid blockchain architectures in regulated financial environments

• Exposure to compliance considerations for on-chain securities (KYC/AML, transfer restrictions, whitelisting)

• Rust proficiency, particularly for non-EVM smart contract platforms (Soroban, Solana, Aptos)

• Experience contributing to or driving technical standards, ADRs, and engineering best practices within a team

Working Style

• Comfortable with async-first communication across globally distributed time zones

• Strong problem-solving skills with a bias toward shipping and iterating

• Collaborative mindset with the ability to give and receive direct, constructive feedback

WORK SCHEDULE & LOCATION

100% Remote.

WHY JOIN US?

Be part of a pioneering team at Franklin Templeton that is shaping the future of finance through blockchain innovation. You'll work alongside top technologists and strategists to deliver impactful solutions in a collaborative and forward-thinking environment - one where AI-augmented development is not just encouraged, but expected as the standard way of working.

Franklin Templeton offers employees a competitive and valuable range of total rewards - monetary and non-monetary - designed to support their well-being and recognize their time, talents, and results. Along with base compensation, employees are eligible for an annual discretionary bonus, a 401(k) plan with a generous match, and recognition rewards. We also offer a comprehensive benefits package, which includes a range of competitive healthcare options, insurance, and disability benefits, employee stock investment program, learning resources, career development programs, reimbursement for certain education expenses, paid time off (vacation / holidays / sick / leave / parental & caregiving leave / bereavement / volunteering / floating holidays) and a motivational wellbeing program.

We expect the annual salary for this position to range between $125,000 - $165,000 depending on location and level of relevant experience, plus discretionary bonus.

#LI-Remote

Experience our welcoming culture and reach your professional and personal potential!

Our culture is shaped by the variety of perspectives and experiences brought by talent from around the world. Regardless of your interests, lifestyle, or background, there's a place for you at Franklin Templeton. We provide employees with the tools, resources, and learning opportunities to help them excel in their career and personal life.

By joining us, you will become part of a culture that focuses on employee well-being and provides multidimensional support for a positive and healthy lifestyle. We understand that benefits are at the core of employee well-being and may vary depending on individual needs. Whether you need support for maintaining your physical and mental health, saving for life's adventures, taking care of your family members, or making a positive impact in your community, we aim to have your needs covered. Learn more about the wide range of benefits we offer at Franklin Templeton.

Highlights of our benefits include:

• Three weeks paid time off the first year

• Medical, dental and vision insurance

• 401(k) Retirement Plan with 85% company match on your pre-tax and/or Roth contributions, up to the IRS limits

• Employee Stock Investment Program

• Tuition Assistance Program

• Purchase of company funds with no sales charge

• Onsite fitness center and recreation center*

• Onsite cafeteria*

*Only applicable at certain locations

Learn more about the wide range of benefits we offer at Franklin Templeton

Franklin Templeton is an Affirmative Action Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees, and we evaluate qualified applicants without regard to ancestry, age, color, disability, genetic information, gender, gender identity, or gender expression, marital status, medical condition, military or veteran status, national origin, race, religion, sex, sexual orientation, and any other basis protected by federal, state, or local law, ordinance, or regulation.
If you believe that you need an accommodation or adjustment to search for or apply for one of our positions, please send an email to accommodations@franklintempleton.com. In your email, please include the accommodation or adjustment you are requesting, the job title, and the job number you are applying for. It may take up to three business days to receive a response to your request. Please note that only accommodation requests will receive a response.