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- ...The Opportunity We are hiring a Smart Contract Engineer to join the OnChain Engineering team. OnChain Engineering team oversees... ...for smart contracts. Implement thorough unit/integration/fuzz tests for smart contracts. Write formal verification for smart contracts...
- ...The Python Software Foundation (PSF) is hiring a contract Sustainability Engineer, PyPI reporting to the PSF's Director of Engineering... ...frameworks, base understanding of HTML/CSS/JavaScript, software testing. Desired: Proficiency with PostgreSQL, proficiency in HTML/CSS...
- ...Review code and provide actionable feedback. Advocate for testing, operational excellence, and engineering best practices. Collaborate... ...environments. Experience with Domain-Driven Design (DDD), contract testing, or large-scale event-driven systems. Reporting Line...
- ...Location: Abuja, Nigeria - Remote Full/Part Time: Full Time Contract Type: Individual Consultancy (IC) Duration: 40 days... ...charge any application, processing, training, interviewing, testing or other fee in connection with the application or recruitment...
- ...taking products from vision to reality, you’ll feel right at home here. In this role, you’ll build backend services, write smart contracts, create developer SDKs, enhance tooling and monitoring, and play a hands-on part in defining our product. A strong grasp of the DeFi...
- ...most critical and challenging services in our ecosystem, seeking to build long-term and sustainable solutions; Design, develop, test, deploy, maintain and improve services focusing on performance, scalability, and resilience; Build Integration with 3rd party API...Remote job
- ...and user segments. Collaborate with the Head of CRM to refine messaging strategies based on performance analytics. Continuously test subject lines, CTAs, and messaging structures to improve engagement and conversion rates. Analyze open rates, click-through rates...
- ...outbound and inbound sales strategies. Build enterprise and mid-market sales pipelines. Negotiate and close high-value customer contracts. Collaborate with Marketing to optimize lead generation. Customer Success & Retention: Develop strategies to reduce...
- ...designers on what ad creative needs to accomplish Identify creative fatigue and recommend refresh timing before performance drops Test creative variations systematically and report on what is working and why Reporting and Communication Provide regular...Remote job
- ...directly to the CTO. At Xapo, we are building truly cross-functional teams with full ownership of design, architecture, building, testing, delivery, data, and operations, structured as Stream Aligned Teams (SATs), Platform teams and Enabling teams as per Team Topologies...
- ...responsibilities Experience leveraging AI-assisted engineering tools and best practices (e.g., LLM coding assistants, AI-driven code review/testing, prompt patterns/guardrails) Strong security fundamentals and hands-on experience implementing cloud and Kubernetes security best...
- ...Responsibilities Collaborate with cross-functional teams to define, design, and ship new features Develop and execute unit tests to ensure its robustness, including edge cases, usability, and general reliability Interface directly with end-users and developers...
- ...Build evaluation harness to benchmark model performance on real-world Python tasks (LeetCode-style, open-source repos, internal tests suites). Develop internal tooling (FastAPI, CLI tools, background workers) to streamline model experimentation and deployment....
- ...process, from discovery and research to wireframing, prototyping, and final UI execution. Conduct advanced user research, usability testing, and A/B experiments to validate and refine design solutions. Partner closely with product managers and engineers to ensure...
- ...hallucinations, inefficiencies, and style violations. Contribute to synthetic data generation by writing adversarial examples that stress-test model reasoning. Mentor junior annotators on JS best practices and advanced language features (closures, proxies, generators, etc...
2000 $
...right ways to verify correctness. We have found that performance engineers will often improve the deepest and trickiest areas of our test harnesses, and unblock their teams to test and measure previously 'dark' aspects of their work. We also have teams that work with...- ...to their engineering decisions. Professional Blockchain experience Familiarity with Web3 concepts (Wallets, signing, smart contracts) Additional Information: ~ This is a global and fully remote role. You must have the right to work for the country you are based...
- ...shippable milestones with clear impact. Elevate developer experience & automation Improve tooling, local dev ergonomics, build/test pipelines, and release workflows for all mobile engineers. Establish clear patterns for navigation, state management, and...
- ...code reviews, architecture discussions, and best practices. Drive continuous improvement in delivery practices (agile, DevOps, testing). Build an inclusive, collaborative, and high-performing team culture. Act as the escalation point for technical and delivery...Remote job
- ...with traditional Linux systems administration, operations, and package management. You are passionate about quality and automatic testing. Work with one of the industry's pioneers in open source with intelligent engineers at every level from engineer to CTO and CEO...
- ..., keep reading. What You'll Be Owning Know the platform, and the people who use it First 90 days: get deep on the API. Make test calls, read the docs like a merchant would, and find every spot where integration hurts. Sit with our biggest merchants. Learn why...
- ...psychological safety, and high performance. Engineering Standards: Establish and enforce "gold standards" for TypeScript development, testing, and CI/CD pipelines to ensure Darwin remains stable and maintainable. Agile Collaboration: Work in a collaborative environment...Remote job
- ...functional teams to define data requirements and implement scalable analytical solutions. Monitor model performance, conduct A/B tests, and implement improvements to maintain accuracy and reliability. Document methodologies, workflows, and data dictionaries to ensure...Remote job
- ...Troubleshoot and resolve production issues in collaboration with DevOps and support teams. Ensure high code quality through automated testing, peer reviews, and CI/CD best practices. Contribute to technical documentation for APIs, services, and data models....Remote job
2000 $
...evolution. Kernel Team projects include but are not limited to: Ubuntu Linux kernel plan, execution, benchmarking and stress testing Optimised kernels for key silicon and cloud partners Confidential computing and next-generation security primitives Developer...- ...Experience in Nigerian tech ecosystem or fintech/marketplace platforms React Native/Expo ecosystem familiarity Automated testing frameworks (Jest, Mocha) Google Play Console and App Store Connect experience Early-stage startup infrastructure experience...Remote job
- ...AI Agents: Design and develop AI agents that generate dynamic, personalized nudge content and conversational interventions. A/B Testing & Experimentation: Design and analyze large-scale A/B tests and experimentation frameworks to evaluate ML models, data-driven...Remote job
- ...end-to-end Collaborate on solution architecture and contribute to high-impact technical decisions Ensure code quality through tests, design reviews, and performance improvements Work closely with backend, blockchain, and product teams to ship secure client-server...
- ...consistent messaging across channels. Analyze campaign data and report key performance metrics to senior stakeholders. Conduct A/B testing and implement optimization strategies to maximize campaign effectiveness. Requirements ~ Bachelor’s Degree in Marketing,...Remote job
- ...and over half a billion exercises completed daily. Beyond our core learning product, we have also entered into English proficiency testing with the Duolingo English Test, Math, Music and now Chess. We are passionate about educating our users, making fact-based decisions...Remote job