Senior Blockchain Developer - Operate

United States Digital Space LLC; Toronto; Hybrid; CAD 100,000 - 191,000; Part time

Benefits offered by this job

Flexible work arrangements

Hybrid work structure

Mental health support benefit

Development and Innovation Days

Vacation days

Job summary

United States Digital Space LLC in Toronto is seeking a Senior Blockchain Developer to design, develop, and maintain enterprise-grade blockchain solutions supporting digital asset and tokenization initiatives. You will collaborate with architects, infrastructure engineers, and business stakeholders to build secure, scalable, and innovative blockchain applications using modern smart contract technologies and EVM-compatible platforms.

What will your typical day look like?

Qualifications

• Minimum 5 years of software development experience.
• At least 3 years in blockchain development with Solidity.
• Strong understanding of EVM architecture and tokenization concepts.
• Experience with enterprise blockchain platforms and security practices.

Responsibilities

• Design, develop, and maintain production-grade smart contracts using Solidity.
• Build and deploy tokenization and digital asset management solutions.
• Develop automated testing strategies and participate in security assessments.
• Collaborate with architects, DevOps, and product teams to deliver technical solutions.
• Support smart contract deployment, monitoring, and external audit preparation.

Skills

Solidity

Blockchain development

Ethereum Virtual Machine (EVM)

Hardhat

Smart contract security

Git / CI/CD

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Hyperledger Besu

Quorum

Ethereum

Git

CI/CD tooling

Job description

Job Type: Temporary Contract

Work Model: Hybrid

Reference code: 134690

Primary Location: Toronto, ON

All Available Locations: Toronto, ON

Our Purpose

At the company, our Purpose is to make an impact that matters. We exist to inspire and help our people, organizations, communities, and countries to thrive by building a better future. Our work underpins a prosperous society where people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and functioning social and economic institutions, and allows our friends, families, and communities to enjoy the quality of life that comes with a sustainable future. And as the largest 100% Canadian-owned and operated professional services firm in our country, we are proud to work alongside our clients to make a positive impact for all Canadians.

By living our Purpose, we will make an impact that matters.

Have many careers in one Firm.Enjoy flexible, proactive, and practical benefits that foster a culture of well-being and connectedness.Learn from deep subject matter experts through mentoring and on the job coaching

Summary

We are seeking a Senior Blockchain Developer to join our team on a 1-year fixed term. In this role, you will design, develop, and maintain enterprise-grade blockchain solutions that support digital asset and tokenization initiatives. You will work closely with architects, infrastructure engineers, and business stakeholders to build secure, scalable, and innovative blockchain applications using modern smart contract technologies and EVM-compatible platforms.

What will your typical day look like?

• Design, develop, and maintain production-grade smart contracts using Solidity.
• Build and support tokenization and digital asset management solutions on enterprise blockchain platforms.
• Develop and execute automated testing strategies using blockchain development frameworks.
• Participate in code reviews, architecture discussions, and security assessments.
• Collaborate with architects, DevOps engineers, and product teams to deliver technical solutions.
• Support smart contract deployment, monitoring, and troubleshooting activities.
• Participate in external audit preparation and remediation efforts.
• Create technical documentation and contribute to development standards and best practices.
• Research emerging blockchain technologies and recommend improvements to the platform.

About the team

This is your opportunity to work in Operate at the company. Operate services harness the latest technologies, talent, and capabilities from all over the world to deliver ongoing outcomes and client value. We do more than traditional business process outsourcing. We do more than just “keeping the lights on.” We work shoulder-to-shoulder with clients and their customers, constantly adapting to the pace of change, to ideate, innovate, and embed continuous advantage at the heart of their operations. And we do it with the kind of drive and passion that comes from loving what you do and who you do it with.

Enough about us, let’s talk about you

You are someone with these required skills, experience & qualifications:

• 5+ years of software development experience.
• 3+ years of blockchain development experience.
• Strong hands-on experience with Solidity.
• Deep understanding of Ethereum Virtual Machine (EVM) architecture.
• Experience with Hardhat, Foundry, Truffle, or similar blockchain development frameworks.
• Experience building and deploying smart contracts in production environments.
• Strong understanding of tokenization concepts and digital assets.
• Experience with enterprise blockchain platforms such as Hyperledger Besu, Quorum, or Ethereum.
• Knowledge of smart contract security practices and common vulnerabilities.i>Experience working with Git, CI/CD pipelines, and Agile methodologies.
• Bachelor's degree in Computer Science, Engineering, or a related discipline, or equivalent practical experience.
• Strong communication and collaboration skills.

It would be great for you to have some of these nice to haves as well:

• Experience with ERC-20, ERC-721, ERC-1155, or ERC-3643 token standards.
• Experience participating in smart contract security audits.
• Knowledge of privacy-enhancing technologies and zero-knowledge proofs.
• Experience with digital asset platforms or tokenization solutions.
• Exposure to cloud platforms such as Azure, AWS, or Google Cloud.
• Contributions to blockchain open-source projects.

Total Rewards

The salary range for this position is $72,000 - $138,000, and individuals may be eligible to participate in our bonus program. the company is fair and competitive when it comes to the salaries of our people. We regularly benchmark across a variety of positions, industries, sectors, targets, and levels. Our approach is grounded on recognizing people's unique strengths and contributions and rewarding the value that they deliver.

Our Total Rewards Package extends well beyond traditional compensation and benefit programs and is designed to recognize employee contributions, encourage personal wellness, and support firm growth. Along with a competitive base salary and variable pay opportunities, we offer a wide array of initiatives that differentiate us as a people-first organization. On top of our regular paid vacation days, some examples include: $4,000 per year for mental health support benefits, a $1,300 flexible benefit spending account, firm-wide closures known as "the company Days", dedicated days of for learning (known as Development and Innovation Days), flexible work arrangements and a hybrid work structure.

Our promise to our people: the company is where potential comes to life.

Be yourself, and more.

We are a group of talented people who want to learn, gain experience, and develop skills. Wherever you are in your career, we want you to advance.

You shape how we make impact.

Diverse perspectives and life experiences make us better. Whoever you are and wherever you’re from, we want you to feel like you belong here. We provide flexible working options to support you and how you can contribute.

Be the leader you want to be

Some guide teams, some change culture, some build essential expertise. We offer opportunities and experiences that support your continuing growth as a leader.

Have as many careers as you want.

We are uniquely able to offer you new challenges and roles – and prepare you for them. We bring together people with unique experiences and talents, and we are the place to develop a lasting network of friends, peers, and mentors.

The next step is yours

At the company, we are all about doing business inclusively – that starts with having diverse colleagues of all abilities. the company encourages applications from all qualified candidates who represent the full diversity of communities across Canada. This includes, but is not limited to, people with disabilities, candidates from Indigenous communities, and candidates from the Black community in support of living our values, creating a culture of Diversity Equity and Inclusion and our commitment to our AccessAbility Action Plan, Reconciliation Action Plan and the BlackNorth Initiative.

We encourage you to connect with us at [e-mail] if you require an accommodation for the recruitment process (including alternate formats of materials, accessible meeting rooms or other accommodations) or [e-mail] for any questions relating to careers for Indigenous peoples at the company (First Nations, Inuit, Métis).

When you apply, we will review your application using the company's Global Talent Standards to ensure a consistent recruitment experience. Our recruitment advisors and hiring teams will utilize human screening combined with AI technology to help identify the skills and qualities that matter most to our business, while safeguarding your privacy and using AI responsibly.

the company Canada has 20 offices with representation across most of the country. We acknowledge that the company offices stand on traditional, treaty, and unceded territories in what is now known as Canada. We recognize that Indigenous Peoples have been the caretakers of this land since time immemorial, nurturing its resources and preserving its natural beauty. We acknowledge this land is still home to many First Nations, Inuit, and Métis Peoples, who continue to maintain their deep connection to the land and its sacred teachings. We humbly acknowledge that we are all Treaty people, and we commit to fostering a relationship of respect, collaboration, and stewardship with Indigenous communities in our shared goal of reconciliation and environmental sustainability.