Senior Blockchain Engineer

Senior Blockchain EngineerJob#: 3048366Job Description:Senior Blockchain EngineerLocation: Southlake, TexasRole OverviewWe are hiring a Senior Engineer, Blockchain Platforms to help build and integrate the blockchain infrastructure layer that underpins our organization's digital asset custody and tokenization platforms. This is a hands-on engineering role focused on Layer-1 blockchain integration, core blockchain infrastructure components, wallet engineering, and custody-related blockchain workflows. This engineer operates at the intersection of blockchain protocol mechanics and institutional custody systems.Key ResponsibilitiesIntegrate company systems with existing Layer-1 blockchains.Evaluate and, where appropriate, contribute to building or extending Layer-1 capabilities to meet custody, scalability, or resiliency needs.Understand chain-level mechanics such as transaction lifecycle, finality, forks, reorgs, and event propagation.Design and build core blockchain infrastructure services, including indexers, event processors, block explorers, and chain data services.Contribute to wallet architecture and development, including blockchain-facing wallet services and transaction creation/signing workflows.Share responsibility for custody-related blockchain workflows, including on-chain transaction execution and event monitoring.Help define safe patterns for interacting with smart contracts and token standards from custody platforms.Apply modern engineering practices to build reliable, testable, and observable blockchain services.Required Qualifications7+ years of professional software engineering experience.Hands-on experience building or integrating blockchain or distributed ledger systems.Strong understanding of Layer-1 blockchain protocols and transaction lifecycles.Experience building backend services, APIs, and infrastructure components.Proficiency in one or more languages such as Go, Java, Rust, or Python.Ability to work effectively across custody, security, and platform teams.Preferred QualificationsExperience with blockchain indexers, explorers, or chain analytics systems.Familiarity with wallet architecture and blockchain signing workflows.Exposure to crypto custody platforms or security-sensitive financial systems.Strong debugging instincts in distributed, asynchronous environments.Experience using AI tooling to support complex software development.What Success Looks LikeBlockchain integrations are predictable, observable, and resilient.Wallet and transaction pipelines behave correctly across normal and edge-case chain conditions.Custody systems interact with blockchains safely and consistently.Incidents related to blockchain dependencies are well understood and quickly diagnosed.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.Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at 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 [email protected] or View phone number on click.appcast.io. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.