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$50/hr
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I'm a full-stack Software Engineer with experience in front-end web and mobile app development. On the backend I have deployed to AWS and Linode. I can help if you need a User Interface, a RESTful API, a Websocket Endpoint, a Data Processing Pipeline, a Data Visualization, or even a Novel Algorithm or Whitepaper Implementation. - I am an expert in Clojure, Clojurescript, and the Datomic database - I am proficient in AWS cloud DevOps - I am proficient in Python - I am proficient in Javascript, HTML, and CSS
$30/hr
$900+ earned
Offers consultations
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I'm passionate for knowledge graphs. Proficient with both property and RDF graphs and I enjoy writing Cypher, SPARQL.
$110/hr
$3K+ earned
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I'm a full stack software engineer with expertise in data analytics and functional programming. I love tackling engineering problems and have high standards for the work I produce.
$35/hr
$0 earned
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I build practical and accessible websites that work for everyone. With 15 years experience developing for the web, I create maintainable systems that use the right tools for each job. I meticulously apply my skills to: - Build, refresh, and maintain WordPress websites, themes, and plugins - Translate brand identity into design systems that work across devices and states, with cohesive palettes, typography, and spacing - Seamlessly translate between any CMS platform or Static Site Generator - Write CSS and HTML that demonstrate mastery of web standards and accessibility guidelines - Progressively-enhance websites with custom interactive web components that work on any system - Design and vectorize graphics, logos, and animated diagrams - Improve performance with code and image optimization and CDN deployment - Develop and deploy applications and API endpoints on cloud infrastructure for more demanding needs Since 2010, I've guided small businesses and nonprofits through the entire web development process, from discovery and brand identity workshops, prototyping, implementation, and deployment. Interested in working together? Send me a message, and let's discuss how we can make something beautiful.
$50/hr
$0 earned
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Specialities:Elixir, Erlang, Clojure, Linux, Automated Testing, Telemetry. I always endeavour to develop quality software, built using the best practices to ensure maintainable, logically sound and highly performant code. I take pleasure in writing clean elegant code that makes good use of a language's features and I'm always eager to collaborate on ideas with fellow colleagues. My foundations were shaped while developing highly concurrent telecom systems and I have since gained experience in multiple facets of the software design lifecycle and industries. I'm a firm believer that sensible and maintainable continuous integration pipelines greatly improve the development lifecycle. I enjoy implementing tooling and deployment of products and have been intimately involved in ensuring that multiple projects reach production ready status.
$100/hr
$900+ earned
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A results-driven and innovative software engineer with over a decade of experience designing, building, and optimizing complex, enterprise-scale applications for industry leaders like Meta, Airbnb, Amazon, and DocuSign. While I have deep expertise in frontend technologies, I am a versatile, full-stack engineer passionate about solving complex problems and architecting robust, scalable systems from the ground up. I excel in collaborative environments and am adept at leading teams, defining technical roadmaps, and establishing best practices to enhance productivity and code quality. My goal is to leverage my diverse technical background to deliver high-impact solutions that drive business success. Key Accomplishments Across the Stack: System Architecture & Performance: Re-architected a monolithic product at Airbnb into a microservice-based system, dramatically cutting build and deployment times from days to just 5 minutes. Spearheaded a server-wide Node.js deployment across 177,000 servers at Meta. Open Source Impact: Led the complete architectural rebuild of Jest v13 for Meta, transforming it into a modular, user-friendly tool and growing its adoption from 40,000 to 17 million weekly downloads. Backend & API Development: Designed and implemented critical backend functionality at Mixpo using Java, Spring, and Clojure, creating secure endpoints with JWT/OAuth2 to unblock the frontend team. Frontend Excellence: Enhanced React's client-side performance by 20% at Meta and designed a UI at DocuSign that successfully handled over 400,000 daily requests. Leadership & Mentorship: Founded the frontend infrastructure team at TUNE, leading 20 engineers and establishing company-wide development standards. Acted as team lead and Scrum Master in multiple roles. Technical Expertise: Languages: JavaScript, TypeScript, Node.js, Java, Clojure, Shell Scripting Frontend: React, Redux, Angular, Backbone.js, Webpack, Babel, Jest Backend: Express.js, Spring, Javax, API Design (REST, OAuth2) Databases: MongoDB, Postgres Infrastructure & DevOps: AWS, Circle CI, Travis CI, CI/CD Pipelines Methodologies: Agile, Scrum, Microservice Architecture, Test-Driven Development (TDD) Whether you need an expert to architect a new system, optimize an existing one, or lead a development team to success, I have the experience and dedication to deliver outstanding results. Let's connect to discuss your project goals.
$60/hr
$100K+ earned
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I’m a Senior Software Engineer with 7+ years of experience building high-performance backend systems, working across Golang, Python, Java, and cloud-native platforms like AWS, including EC2, S3, RDS, ECR, Opensearch, DocumentDB, and Route53. I’ve delivered scalable, reliable infrastructure and AI-powered applications using LLMs such as GPT-3.5, GPT-4, GPT-4o, and GPT-4o-mini, along with vector databases like Qdrant and pgvector. My work spans intelligent systems, from personalized recommendations to GenAI-powered automation, all focused on simplifying complexity, saving time, and delivering real business value. I'm comfortable navigating ambiguity, picking up new tech fast, and building production-ready systems in weeks. I’ve worked with distributed teams, collaborated across time zones, and shipped outcomes through tight feedback loops. On the infrastructure side, I’ve worked with Docker, Kubernetes, Terraform, and monitoring tools like Prometheus, Grafana, and Datadog, designing systems built for observability, reliability, and scale. I thrive at the intersection of backend architecture, AI integration, and lean, pragmatic engineering, always balancing simplicity with scalability. Major accomplishments: ✅ Redesigned the core job search system at Ladders — the most critical part of the platform — using Golang, PostgreSQL, and pgvector. Delivered 90% of the legacy functionality in just 3 months while improving average response times by 34% and reducing peak latency by 90%. ✅ Replaced a legacy recommendation engine with a new Python + Qdrant system, boosting positive feedback by 70%, reducing negative feedback by 40%, and cutting infrastructure costs by 65%. ✅ Shipped an AI-powered autofill tool that extracts structured work history from resumes using GPT-3.5, deployed via a staff-facing Chrome extension. Saved $25K+ in API costs and eliminated 20+ hours of manual work per week for internal staff. Skills: Languages: Python, Go, Java, JavaScript, TypeScript, ClojureScript, Clojure Technologies and Tools: AWS (EC2, S3, RDS, ECR, Cloudfront, Opensearch, DocumentDB, Route53), PostgreSQL, pgvector, MariaDB, Qdrant, Redshift, Docker, K8s, Terraform, Pulumi, Kafka, Prometheus, Grafana, Datadog, Flask, Spring , React, Google Analytics, Google Search Console
$20/hr
$0 earned
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PROFESSIONAL SUMMARY A Computing graduate with expertise in Cybersecurity with strong project management experience (Agile and Waterfall), programming skills in Python, Java, and Clojure, and a solid foundation in software development, database design, and network management. Experienced in applying software engineering principles across the full development lifecycle and leading projects in networking, AI, and databases. Combines technical expertise with effective collaboration across teams, delivering secure, efficient solutions. My passion for continuous learning, innovation, and contribution to dynamic tech-driven environments is my core strength.
$120/hr
$0 earned
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I work with fintech and SaaS companies to build, fix or scale an MVP so they can jump start their business. I work across design, implementation and operations as needed and I’m especially effective in teams where engineering needs to work closely with product and the wider business as the company grows. With experience in both hands-on and leadership roles I can work where needed to make the most impact. Core strengths: • Backend/full-stack development and technical problem-solving • Pragmatic architecture and design (evolution over rewrites) • Improving reliability, performance and team delivery • Mentoring through example
$35/hr
$0 earned
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I am a Senior Software Engineer with 15 years of experience building scalable, high-performing applications. I specialize in both front-end and back-end development, with a strong focus on creating seamless user experiences and robust architecture. My journey includes leading development teams and driving projects from concept to deployment in dynamic environments. I thrive in agile settings and have a proven track record of delivering innovative solutions that meet and exceed client expectations. Whether you're looking to enhance an existing application or build a new one from scratch, I bring a strategic approach and a commitment to quality. Let’s discuss how my technical expertise and collaborative mindset can help bring your vision to life.