• Build and maintain backend services and integration layers using Scala. • Develop TypeScript services, APIs, and tooling that interact with blockchain-based applications. • Write well-tested, readable, and maintainable code. • Participate in design discussions, code reviews, and iterative improvement of the platform. • Work with a team of talented software developers in a distributed work environment • Represent the engineering team in daily client interactions, communicating progress, tradeoffs, and technical decisions clearly and effectively.

About Us Turnkey is developer-first infrastructure for private key management, making it simple to create wallets, sign transactions, and automate on-chain actions through one elegant API, without ever exposing sensitive key material. Founded by the team who scaled Coinbase Custody from zero to a $100M+ ARR business and helped protect over $100B in crypto assets, Turnkey is tackling crypto security at its foundational level. Our mission is to make strong cryptography the default across the open internet the same way AWS made scalable computing the default for software. Our team is low-ego, high-agency, and high-autonomy, with a significant amount of combined experience in cryptography, security, and low-level systems. We're building the trustless, programmable infrastructure that will power the next wave of mass-market crypto applications and we're looking for people who want to shape what that future looks like. We are looking for talented engineers who are excited by the radical potential of crypto to change the world for the better. We are generalist engineers and constantly solving new problems and challenges. We are language-agnostic, though we do use Go, Typescript, and Rust in production and while we don't expect you to have a background in every technology we use, we do expect strong fundamentals and experience building scalable infrastructure. What You'll Do - Design and build systems from the ground up without cutting corners on security or usability - Develop signing infrastructure and applications to run inside secure computing environments - Collaborate effectively across the company to design and deliver the core product - Write internal product specifications, external developer documentation, whitepapers, etc. - Design and build new product features end-to-end driven by customer requests - Assist in scaling out a world-class engineering team - Develop thoughtful deployment processes and infrastructure to reduce the risks inherent in the software development lifecycle What We're Looking For - 5+ years of production engineering experience - Experience with one of the following languages: Go, Typescript, or Rust - Experience working with AWS, GCP, or other other cloud providers - An understanding of modern application architectures with opinions on how they should be developed and deployed - Experience building and operating large-scale, mission-critical infrastructure - People who have experience building scaled crypto products - A healthy amount of paranoia :-) Style Points - Experience developing against TEEs, HSMs, and other secure computing environments - A deep understanding of the Linux operating system and how to reduce the surface area of applications deployed on top of it - Expertise in threshold signing systems and a desire to stay on the cutting edge of production-grade cryptography - Actively tracking developments in the crypto ecosystem and opinionated on where it is going What We Offer - Full benefits, including medical, dental, vision, life, disability, HSA/FSA, 401(k) - detailed benefits overview available as we get further in the process - Paid parental leave - Unlimited PTO - $3,000/yr learning and development budget to attend industry conferences - Multiple team offsites per year - Lunch stipend Please note that while the team is remote, we are only considering candidates who are physically based in the United States and Canada at the current time. Turnkey is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status, or any other characteristic protected by law. We encourage individuals of all backgrounds to apply. Compensation range $150,000—$275,000 USD

Role Overview The Senior Software Engineer will architect, build, and optimize the high-performance advertising platform, leveraging machine learning and big data to drive significant profitability, efficiency, and scale for Audiohook's core business. Key Responsibilities - Build and optimize a performance-based advertising service capable of servicing 10B requests per day. - Optimize bidding algorithms using machine learning models to increase profitability by 20% within 3 months of hiring. - Architect data pipelines capable of handling big data workloads. - Maintain data integrity between the data lake and reporting caches. - Reduce data processing costs by 10% within 6 months of hiring. - Complete 10-12 story points per week. - Present progress and demos in company Standup meetings twice a week. - Participate in live team code reviews. - Lead monthly "Dev Tricks" and "Lunch and Learn" presentations. - Other duties as assigned by supervisor of management. Qualifications - Expert-level mastery of Python, Go, or Node.js. Able to work in Python - Takes ownership over product level architecture, projects and personal tasks - Collaborative - (Pair programming, white boarding, code reviews, product and business discussions) - Present and involved in daily discussions - Comfortable with taking calculated risks - Understands trade offs between short term profitability and long term stability Additional Requirements - If remote, willing to travel to Utah up to 1 week per month for in-office collaborative work. - Understands the strengths and pitfalls of AI Agents and frequently uses them to collaborate on, review and write code. About working at Audiohook We are a small, tight-knit team punching way above our weight. Each member is a major player. No room for coasting. We're fully remote, because we hire people who are intrinsically motivated and want to be part of something bigger than themselves. If that sounds like you, we'd love to talk. Our tech stack: - Python (our primary backend language) - PostgreSQL - Iceberge Datalake - Vue.js (front-end framework) - AWS Lambda, Firehose, Glue - Docker/Dev Ops Container orchestration What We Offer - Flexible remote/hybrid work environment - Competitive salary and equity opportunities - Performance bonuses - 401(k), Health, dental, and vision benefits - Other fringe benefits such as daily lunch stipend, monthly wifi, cell phone and subscription reimbursement, and annual hardware stipend - Flexible PTO - Bi-annual Corporate Offsites

About tvScientific tvScientific is the first and only CTV advertising platform purpose-built for performance marketers. We leverage massive data and cutting-edge science to automate and optimize TV advertising to drive business outcomes. Our solution combines media buying, optimization, measurement, and attribution in one, efficient platform. Our platform is built by industry leaders with a long history in programmatic advertising, digital media, and ad verification who have now purpose-built a CTV performance platform advertisers can trust to grow their business. As a Senior Backend Engineer with expertise in Python, you will collaborate with a small team of remote engineers to enhance our flagship customer-facing product. You should possess a deep understanding of fundamental engineering principles and have practical experience in web development, automated testing, version control, continuous deployment, infrastructure management, and agile planning. This role is ideal for someone who’s ready to go beyond shipping features, who acts as a force multiplier for the team by helping to shape architecture, elevate technical quality, and support the Engineering Manager in mentorship and planning. You won’t be responsible for direct people management, but you’ll be a go-to partner in helping the team grow, unblock, and thrive. What you'll do: - Own and deliver key product features from design through deployment, working closely with design, product, and other stakeholders. - Mentor and support engineers, offering guidance and helping to reinforce high engineering standards across the team. - Collaborate closely with design, product, and cross-functional stakeholders to deliver a user-friendly and engaging product for our customers. - Ship high-performing and resilient APIs that adhere to industry standards and are delightful to use. - Step into a technical lead role on projects as needed, coordinating across functions and guiding execution without formal authority. - Maintain a high standard of quality across our codebase by advocating for cleanliness, readability, speed, testability, and documentation. - Champion software quality, emphasizing readability, reliability, testability, and documentation. What we're looking for: - Experience working with Python backends (ideally Django). - Exceptional remote communication skills. Especially in writing. - The ability to work autonomously in a startup environment; you thrive under pressure and are comfortable adapting to rapidly evolving plans. - Proven production experience working with a relational database (we use MySQL). Bonus points for experience working with other types of datastores or backing services. - A rigorous approach to software quality. You like to write tests. - A knack for learning new technologies, strong problem-solving skills, and an openness to creative solutions. - A genuine passion for crafting reliable web applications. You get it right the first time. - Computer Science degree or equivalent. - Nice-to-Haves: - Adtech Experience. - Specific Domain Experience in CTV. - Familiarity with AWS services, experience working in a microservice architecture or with containerization technologies. - Previous involvement in a production environment with a customer-facing reporting and analytics system. - Experience working with other types of datastores or backing services, like Redis. In-Office Requirement Statement: - We recognize that the ideal environment for work is situational and may differ across departments. What this looks like day-to-day can vary based on the needs of each organization or role. Relocation Statement: - This position is not eligible for relocation assistance. Visit our PinFlex page to learn more about our working model. #LI-SM4 #LI-REMOTE At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise. Information regarding the culture at Pinterest and benefits available for this position can be found here. US based applicants only $123,696—$254,667 USD