
Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.
F5 is looking for a Principal Software Engineer with experience in building FIPS-ready cryptography-based security solutions at scale. You will participate in the design and implementation of F5’s Edge Computing platform that is used to deploy global, scalable and secure applications. Your work includes, but not limited to, design, implementation, deployment, operational management, and debugging of security services of F5’s platform.
Responsibilities:
- Collaborate with architects and business leaders to understand the requirements for providing FIPS-ready cryptography-based security services for F5’s platform, design solutions, and implement them
- You will develop software for identity related security foundations of Volterra platform - Identity Management, Key Management, Secure Bootstrapping, Authentication, Authorization, Secrets Management, etc.
- You will perform necessary compliance tasks – including building and executing the test suites – required for making systems and libraries ready for FIPS
- You will vet various open source and closed source technologies, components, libraries, tools etc. and help build a highly available, highly scalable and easily manageable system
- Demonstrate technical leadership in multiple domain areas, providing mentorship to other team member
- Demonstrate leadership by taking responsibility and ownership of software components and deliver a complete product satisfying functional, scale, performance and manageability requirements
- Hands-on coding in multiple languages while considering performance, scalability, maintainability, and flexibility
Minimum Qualifications:
- BS/MS degree in Computer Science or equivalent with 12+ years of software engineering and development experience
- Hands on experience with multiple computer programming languages such as Golang (must), C++, Python, Java
- Hands-on experience with FIPS 140-2 and CMVP
- Ability to implement all phases of a development cycle for a software product from understanding requirements, going through design, development and deploy phases
- Good understanding of complexities and security challenges in large-scale distributed systems
- Good understanding of security concepts like IPSec/TLS, PKI, SAML/OAuth, Key management, etc.
- Experience with Cloud Computing platforms (e.g. Amazon AWS, Microsoft Azure, Google Compute etc.) is a plus
- Working knowledge of Virtualization technologies like KVM, Docker etc.
- Working knowledge of Cloud orchestration systems such as Kubernetes, Openstack etc.
- Excellent written and verbal communication skills
- Strong interpersonal, team building, and mentoring skills

About F5 Networks
About
F5 is an industry leader in Application Delivery Networking and Security, has over 8,000 employees worldwide At F5, we make apps faster, smarter, and safer…from anywhere. Come work within the F5 BIGIP Next Base Operating System team in an exciting, fast past environment charting the course for F5’s future. As a contributing member of the team, you will be integrated into cross functional working project teams in our Product Development organization. Build services that are performant, reliable, secure, and scalable within a company known for our excellent culture. If you enjoy providing quality solutions while keeping a focus on high availability, scalability, maintainability, and security then you are the Software Engineer that we would like to have join our team.
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Context for the Candidates:
Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.
Key Discussion Points:
• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?
• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.
• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?
• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?
• Share best practices for gas optimization, contract upgradability, and backend scalability.
Evaluation Criteria:
1. Technical Knowledge:
• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.
• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).
• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.
2. Problem-Solving and Integration Skills:
• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.
• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.
3. Experience and Expertise:
• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.
• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.
4. Innovation and Critical Thinking:
• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.
• Discussion on the future potential of blockchain technology and how the tech stack can evolve.
5. Communication and Team Collaboration:
• Clear articulation of technical challenges and how to address them in a team setting.
• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.
- 3-7 years of experience of professional experience with proven track record of designing world class products
- A stunning portfolio with detailed case studies
- Focused on the customer and has experience using design research methodsto learn about the customer
- You love to solve problems, have an entrepreneurial spirit, and are always up for a challenge. Ready to work in an agile environment and willing to try new things all the time
- Being able to think about product strategy at a high level and clearly break it down into design deliverables
- A good grasp of the UX methodology and lifecycle across all major channels and platforms
- Assume full responsibility for the design process and participate in it as an independently led member of a design team
- Strong aesthetic sense and attention to detail; Excellent knowledge of clean user interface design and Prototyping skills
- Should be well versed in best practises while designing in Figma and design to developer hand-off
- Strong command over developer guidelines across platforms and web
- Capable of gaining trust and managing your peers in order to provide a satisfying experience with the product
Handle customer inquiries via email and chat, giving prompt answers to customer questions. Provide knowledgeable help to customers and go the extra mile in providing the correct details to customer queries. Adhere to Service Level Agreement (SLA) deadlines in resolving customer complaints quickly and effectively.
This is a full-time remote role for a Human Resources Executive at visitant.ai. The Human Resources Executive will be responsible for managing HR operations, employee relations, and HR policies. They will oversee various aspects of human resources management, ensure compliance with relevant regulations, and contribute to the overall HR strategy of the organization.
Qualifications
- Strong HR management skills
- Experience in HR operations
- Knowledge of employee relations
- Familiarity with HR policies and best practices
- Proficiency in human resources management
- Excellent communication and interpersonal skills
- Ability to work independently and remotely
- Experience in the field of HR is a plus
- Bachelor's degree in Human Resources, Business Administration, or related field
Professional Requirements:
- 2-8 Years professional development experience.
- Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience.
- Good understanding of data structures and algorithms.
- Good understanding of high level and low-level design of distributed systems.
- Experience coding in any one of the following Java or Nodejs.
- Experience building highly available distributed systems on cloud infrastructure will be plus.
- Exposure to architectural pattern of a large, high-scale web application.
Requirement/responsibilities: To take a project from scoping requirements through launch of the project. Ownership of product/feature end-to-end for all phases from the development to the production. Ensuring the developed features are scalable and highly available with no quality concerns. Work closely with senior engineers for refining the and implementation. Management and execution against project plans and delivery commitments. Participate in design and code reviews.
Compensation: Competitive as per market standards; ESOPs based on performance
Responsibilities:
You’ll blend your exceptional JavaScript engineering (ES6+/TS) skills with your passion for writing code and solving problems to support seamlessly integrating our Virtuoso product with some of the most popular application, products, and specific customer CI/CD pipelines; as well as solving automation challenges in creative ways and help our customers test their applications with state of the art solutions.
Engineering at SpotQA is a multifaceted role, so whilst we absolutely insist on top-notch JavaScript skills, you should also bring a wealth of experience working in a full-stack engineering capacity.
An ideal candidate can round this off with strong Java skills, and past experience of working with and building web automation, and experience in building deep third-party integrations. Bonus points if you have extensive experience with advanced testing techniques such as mocking/stubbing, demonstrate you care about clean code.
Requirements
You will:
- Have good English communication skills and ability to liaise with other teams
- Be a champion of quality - software design patterns and passion for writing clean code
- Know when to test, what to test, and when to refactor code and be adept at familiarising yourself with new codebases
- Have worked as part of a team to deliver high-quality software to a production environment
- Have been responsible for delivery of features and comfortable with planning and prioritising work in an agile process
Please note: This role demands someone who can start with in short notice.
Must haves:
- Strong JavaScript (incl. ES6+ / Node.js) skills, along with a deep understanding of DOM structures and web browser lifecycles.
- Good understanding of algorithms and data structures
- Experience of building microservices
- Fullstack engineering experience
- Testing frameworks (e.g., Jest, JUnit)
- Prior experience in web automation (e.g., using selenium and/or other open source technologies)
- Prior experience integrating with third party services (e.g., Jira)
- Strong experience with relational, nosql, and in-memory data stores
- Good understanding of distributed architectures and systems thinking
Nice to haves:
- Strong Java 8+ skills and background
- Frontend engineering experience using a modern framework (e.g., React, Vue)
- Relevant degree (or equivalent) in computer science / software engineering
- Building web crawlers, and utilising browser automation interfaces
- Linux based environments and bash scripting
- Container technology (e.g., Docker, Kubernetes)
- Prior experience with AWS/Azure/Google Cloud, and use of Infrastructure as Code (e.g., using Terraform)
- Testing expertise and experience of using advanced testing techniques such as mocking, stubbing, etc.
- Experience with distributed systems (concurrency, consistency, partition tolerance)
What else is in it for you?
- The opportunity to bring your own ideas to reality (we love new solutions and ideas!)
- Team retreats
- Private health insurance
- Take your birthday as holiday every year!
- Sabbatical opportunities
- Flexible work options










