Blockchain Developer Jobs in Texas (NOW HIRING)

Job#: 3044341
Job Description:
Software Engineer, Digital Assets & Tokenization
Hybrid in Southlake, TX or Austin, TX
About the Role

• We are seeking a highly skilled Software Engineer, Digital Assets & Tokenization to design, build, and scale next-generation blockchain and tokenization infrastructure. This role is ideal for a hands-on engineer passionate about Web3 technologies, distributed systems, and digital asset platforms.
• You will develop reusable blockchain capabilities across smart contracts, token lifecycle management, wallet and custody integrations, transaction orchestration, event indexing, and enterprise-grade distributed systems. The position offers the opportunity to work across public and private blockchain networks, including Ethereum/EVM, Hyperledger Besu, Canton/Daml, Layer 2 solutions, and emerging tokenization protocols.

Key Responsibilities
Web3 Platform Engineering

• Design and develop scalable Web3 platform services for tokenization, blockchain connectivity, wallet integration, transaction processing, and event indexing.
• Build backend services that interact with blockchain nodes, smart contracts, custody platforms, signing systems, and off-chain applications.
• Create blockchain abstraction layers supporting multiple networks and enterprise blockchain platforms.
• Develop integrations with Ethereum-compatible networks, Hyperledger Besu, permissioned blockchains, and Canton/Daml ecosystems.
• Implement blockchain connectivity using JSON-RPC, WebSockets, smart contract queries, transaction monitoring, and event processing.
• Support Canton/Daml workflows, including participant connectivity, application package management, transaction authorization, and workflow integration.

Smart Contract & Tokenization Development

• Design, develop, and integrate smart contracts for tokenized assets and programmable business workflows.
• Build services for smart contract interaction, transaction simulation, event decoding, and contract state management.
• Establish standards for smart contract testing, deployment, governance, and lifecycle management.
• Implement security best practices, including threat modeling, static analysis, fuzz testing, and secure deployment pipelines.

Wallet & Transaction Infrastructure

• Integrate institutional wallet, custody, signing, and authorization platforms.
• Design transaction orchestration workflows covering validation, approvals, signing, submission, monitoring, exception handling, and audit logging.
• Support address management, transaction controls, approval workflows, and operational governance.

Required Qualifications

• 5+ years of software engineering experience building distributed systems, financial platforms, blockchain infrastructure, transaction systems, or custody solutions.
• Strong hands-on experience with Web3 and blockchain engineering.
• Deep knowledge of Ethereum/EVM architecture, smart contracts, transaction lifecycles, gas management, events, confirmations, and finality.
• Experience integrating with blockchain nodes, wallets, custody platforms, signing systems, and smart contracts.
• Proficiency with JSON-RPC, WebSockets, blockchain event indexing, transaction monitoring, and blockchain data models.
• Strong understanding of wallet infrastructure, digital asset custody, key management, and transaction signing.
• Proficiency in one or more programming languages such as Java, Go, Kotlin, TypeScript, Rust, Python, or C++.
• Experience building APIs, microservices, event-driven systems, cloud-native applications, and production services.
• Ability to independently lead complex projects from architecture through production deployment.

Preferred Qualifications

• Experience with Hyperledger Besu, permissioned EVM networks, or private blockchain deployments.
• Experience with Canton, Daml, validator/participant architectures, DAR deployment, and institutional blockchain workflows.
• Knowledge of smart contract security, auditing, formal verification, fuzz testing, and secure deployment practices.
• Experience building blockchain indexers, token lifecycle platforms, transaction orchestration systems, or custody integrations.
• Familiarity with token standards including ERC-20, ERC-721, ERC-1155, ERC-1400, and ERC-3643.
• Experience working in highly regulated, security-sensitive, or high-value transaction environments.
• Blockchain certifications or training related to Ethereum, Besu, Canton, or Daml are a plus.

Why Join Us?

• Build innovative digital asset and tokenization solutions.
• Work with cutting-edge Web3 and blockchain technologies.
• Influence the architecture of enterprise-scale blockchain platforms.
• Collaborate with experienced engineers shaping the future of digital finance.

EEO Employer
Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at or .
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
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Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
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