Senior Software Engineer

Certikin is the leading supplier of wet leisure and water treatment equipment in the UK and ranks amongst the top two companies in its field in Europe. It is also a major manufacturer and innovator in its own right and the Certikin brand is synonymous with premium quality. Certikin International Ltd holds in stock over 8,000 product lines for both domestic and commercial pools including wellness, spas, water park slides and play equipment as well as a huge range of products for both the new build and retro-fit markets. As well as being the market leader in the UK for swimming pool covers, Certikin is also the UK's foremost specialist in swimming pool heating. Certikin was one of the first companies in its field to gain the internationally recognised ISO9001/2008 accreditation which means we provide a proven consistent level of quality in the service we supply and we are committed to a programme of continuous improvement. Certikin is a subsidiary of the publicly quoted Spanish multi-national group, Fluidra. Based in Barcelona, with over 40 years experience in the water and swimming pool industry, Fluidra employs a workforce in excess of 3,200 in over 30 countries. Certikin's thriving export division services 50 countries. Over the last decade the Certikin brand has experienced rapid global expansion, and includes the establishment of Certikin France, Certikin Spain, Certikin Italia, Certikin India and Certikin Middle East where an office and warehousing facility in Dubai enhances the company's service to the Gulf, Africa and the Middle East. Certikin was established in 1963 and currently operates at two UK locations with a total of four acres of office, warehouse and factory space, including a special facility to house pipes and fittings at our headquarters and main distribution hub in Witney, Oxfordshire. Certikin North, our state-of-the-art computer-controlled swimming pool liner plant in Leeds, produces tailor-made pool liners and covers.

You will design and develop tools that automatically ensure the correctness of smart contracts or identify security issues and bugs in smart contracts. As part of our multinational team of programming language experts, you will have the opportunity to work on all stages of tool development from idea generation to implementation and iterative improvements. Our team is highly supportive and collaborative with great opportunities to learn and grow.

Design and develop tools to ensure the correctness and security of smart contracts in a blockchain security company.

You will design and develop tools that automatically ensure the correctness of smart contracts or identify security issues and bugs in smart contracts. As part of our multinational team of programming language experts, you will have the opportunity to work on all stages of tool development from idea generation to implementation and iterative improvements. Our team is highly supportive and collaborative with great opportunities to learn and grow.Requirements:<ul><li> Master’s degree in Computer Science/Engineering or a related field</li><li> Advanced knowledge of algorithms/data structures/operating systems/computer architecture/network protocols</li><li> In-depth understanding of blockchain fundamentals, including decentralized networks/Web3 infrastructure/smart contract development (EVM/Web3.js)</li><li> Expertise in frontend development using React/JavaScript/TypeScript/HTML/CSS & backend development, including API architecture/design, server-side development & caching strategies</li><li> Proficiency in cloud services (AWS/S3/EC2)</li></ul>Benefits:<ul><li> Medical, vision, and dental insurance</li><li> 401(k) plan with company matching</li><li> Life and accidental death and dismemberment insurance</li><li> HSA (with high deductible plan)</li><li> FSA</li><li> Flexible paid time off and holidays</li><li> Variable commission program for business development sales roles</li></ul>

Certikin

Senior Software Engineer Design and develop tools to ensure the correctness and security of smart contracts in a blockchain security company. You will design and develop tools that automatically ensure the correctness of smart contracts or identify security issues and bugs in smart contracts. As part of our multinational team of programming language experts, you will have the opportunity to work on all stages of tool development from idea generation to implementation and iterative improvements. Our team is highly supportive and collaborative with great opportunities to learn and grow. Senior Software Engineer Engineer Certikin leisure-travel-and-tourism fitness fittings health leisure pipe pool-enclosures recreational-facilities retail saunas services spas swimming-pools tourism travel water-treatment wellness React JavaScript TypeScript HTML CSS Web3.js AWS S3 EC2 New York New York

As a Senior Software Engineer at CertiK, you will create tools for verifying smart contract security and work on full-stack Web3 applications. The role involves collaboration, innovation, and working on cutting-edge blockchain security solutions.

Blockchain Security Engineer

We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you.

Responsibilities include auditing codebases for vulnerabilities, working with external blockchain teams, conducting security research, designing security tools, and improving internal processes.

Qualifications include a degree in Mathematics, Computer Science, or Security, at least 3 years of software/security engineering experience, 2+ years in blockchain tech, and proficiency in Rust, Go, Solidity, Python, or similar languages.

Preferred qualifications involve a background in Cryptography or Cybersecurity, experience with audits, and notable achievements in security contests or CVEs.

CertiK is a leading blockchain security auditor with extensive industry experience, working with top clients and investors.

The company values self-starters, accountability, and innovation, aiming to build a secure infrastructure for software.

Compensation ranges from $102,000 to $180,000 annually for US-based roles. Benefits include medical, vision, dental insurance, 401(k) with matching, life insurance, HSA, FSA, flexible PTO, holidays, and a variable commission for sales roles. All employees must verify eligibility to work in the US. CertiK is an equal opportunity employer committed to diversity.

Seeking a senior blockchain security engineer to audit smart contracts, improve security tools, and conduct research in Web3.

We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you.

Responsibilities include auditing codebases for vulnerabilities, working with external blockchain teams, conducting security research, designing security tools, and improving internal processes.

Qualifications include a degree in Mathematics, Computer Science, or Security, at least 3 years of software/security engineering experience, 2+ years in blockchain tech, and proficiency in Rust, Go, Solidity, Python, or similar languages.

Preferred qualifications involve a background in Cryptography or Cybersecurity, experience with audits, and notable achievements in security contests or CVEs.

CertiK is a leading blockchain security auditor with extensive industry experience, working with top clients and investors.

The company values self-starters, accountability, and innovation, aiming to build a secure infrastructure for software.

Compensation ranges from $102,000 to $180,000 annually for US-based roles. Benefits include medical, vision, dental insurance, 401(k) with matching, life insurance, HSA, FSA, flexible PTO, holidays, and a variable commission for sales roles. All employees must verify eligibility to work in the US. CertiK is an equal opportunity employer committed to diversity.Requirements:<ul><li> Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security.</li><li> Minimum 3 years of professional experience as a Software Engineer, Security Engineer, or in a related role.</li><li> At least 2 years of hands-on experience with blockchain technologies, including smart contracts (EVM chains, Solana, Move, etc.), blockchain protocols (nodes, SDKs, Cosmos, etc.).</li><li> Strong expertise in threat modeling, risk assessment, and security analysis.</li><li> Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc.</li><li> Passion for Cryptocurrency, DeFi, and Blockchain technologies.</li></ul>Benefits:<ul><li> Medical, vision, and dental insurance</li><li> 401(k) plan with company matching</li><li> Life and accidental death and dismemberment insurance</li><li> HSA (with high deductible plan)</li><li> FSA</li><li> Flexible paid time off and holidays</li><li> Variable commission program for business development sales roles</li></ul>

Blockchain Security Engineer Seeking a senior blockchain security engineer to audit smart contracts, improve security tools, and conduct research in Web3. We are seeking a Senior Blockchain Security Engineer with a strong security mindset and deep technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. You will play a critical role in safeguarding Web3 projects by auditing code, building security tools, and driving research. If you have hands-on experience in Web3 and are passionate about advancing the security of decentralized technologies, we’d love to hear from you.

Responsibilities include auditing codebases for vulnerabilities, working with external blockchain teams, conducting security research, designing security tools, and improving internal processes.

Qualifications include a degree in Mathematics, Computer Science, or Security, at least 3 years of software/security engineering experience, 2+ years in blockchain tech, and proficiency in Rust, Go, Solidity, Python, or similar languages.

Preferred qualifications involve a background in Cryptography or Cybersecurity, experience with audits, and notable achievements in security contests or CVEs.

CertiK is a leading blockchain security auditor with extensive industry experience, working with top clients and investors.

The company values self-starters, accountability, and innovation, aiming to build a secure infrastructure for software.

Compensation ranges from $102,000 to $180,000 annually for US-based roles. Benefits include medical, vision, dental insurance, 401(k) with matching, life insurance, HSA, FSA, flexible PTO, holidays, and a variable commission for sales roles. All employees must verify eligibility to work in the US. CertiK is an equal opportunity employer committed to diversity. Blockchain Security Engineer AI Engineer Certikin leisure-travel-and-tourism fitness fittings health leisure pipe pool-enclosures recreational-facilities retail saunas services spas swimming-pools tourism travel water-treatment wellness Rust Go Solidity Python

The role involves reviewing blockchain codebases, collaborating with blockchain teams, and developing security frameworks. It requires deep expertise in blockchain security, programming, and research to protect decentralized applications.

Blockchain Engineer

Galaxy Entertainment Group ('GEG') is a leading Asian gaming company, which since 2002, has held a gaming concession from the Macau SAR Government. Our business has evolved to include 3 City Clubs, the Starworld Hotel and the iconic Galaxy Macau which opened in May 2011. The success of these ventures has positioned GEG for significant growth in the coming years. May 2015 saw the launch of the second phase of Galaxy Macau which included an expanded retail and F&B offering, as well as two new hotels - the JW Marriott and an all-suite Ritz Carlton. In addition, we also launched Broadway Macau, where the sights, taste and sounds of Asia and the most authentic aspects of Macau are up close and personal. Our long term growth includes the future development of Phase 3 & 4 of Galaxy Macau, a US$1.6 Billion investment into developing a resort on the neighboring Hengqin Island as well as exploration of other business opportunities across Asia. For more information on our developments, please visit;www.galaxyentertainment.com - Galaxy Entertainment Groupwww.galaxymacau.com - Galaxy Macauwww.broadwaymacau.com.mo - Broadway Macauwww.starworldmacau.com - Starworld MacauTo explore career opportunities at Galaxy Entertainment Group, please visit www. MyGalaxyCareer.com

Gala is creating entertainment that empowers on the blockchain, working with a global talent pool and leading brands in gaming, music, and film. The company values openness, ownership, and innovation, aiming to deliver unique products and experiences. The Blockchain Engineer will design, develop, and optimize blockchain solutions using Hyperledger Fabric, manage network deployment on Kubernetes, establish CI/CD workflows with AWS, and develop secure chaincode. The role requires deep knowledge of Fabric architecture, transaction flow, chaincode development in Go or JavaScript, and experience with Kubernetes, AWS, Terraform, and Flux. Extra credits include experience with NFTs, play-to-earn gaming, and remote work experience. Benefits include health coverage, unlimited PTO, paid parental leave, and more, primarily for U.S.-based employees.

Seeking an experienced Blockchain Engineer specializing in Hyperledger Fabric to develop and optimize blockchain solutions.

United States

Gala is creating entertainment that empowers on the blockchain, working with a global talent pool and leading brands in gaming, music, and film. The company values openness, ownership, and innovation, aiming to deliver unique products and experiences. The Blockchain Engineer will design, develop, and optimize blockchain solutions using Hyperledger Fabric, manage network deployment on Kubernetes, establish CI/CD workflows with AWS, and develop secure chaincode. The role requires deep knowledge of Fabric architecture, transaction flow, chaincode development in Go or JavaScript, and experience with Kubernetes, AWS, Terraform, and Flux. Extra credits include experience with NFTs, play-to-earn gaming, and remote work experience. Benefits include health coverage, unlimited PTO, paid parental leave, and more, primarily for U.S.-based employees.Requirements:<ul><li> Deep understanding of Hyperledger Fabric architecture and components</li><li> Advanced knowledge of Fabric transaction flow, endorsement, ordering, and validation phases</li><li> Experience in writing secure and efficient chaincode using Go or JavaScript</li><li> Proficiency in optimizing chaincode performance and ensuring determinism</li><li> Experience with goleveldb and complex query optimization</li><li> Strong understanding of Fabric's identity and access management systems</li><li> Familiarity with Fabric's private data collections and channels</li><li> Expertise in container orchestration using Kubernetes</li><li> Proficiency with CI/CD tools and cloud platforms, especially AWS</li><li> Experience with Terraform and Flux CI/CD</li><li> Specialized experience with NFTs and/or play-to-earn gaming (preferred)</li><li> Remote work experience (preferred)</li></ul>Benefits:<ul><li> Health coverage with 100% employer-paid premiums for Medical, Dental, and Vision for U.S. employees</li><li> Optional pet insurance</li><li> Unlimited PTO</li><li> Paid Parental Leave</li><li> Employee Assistance Program (EAP) with confidential counseling and resources</li><li> Benefits may vary by location and role</li></ul>

galaxy entertainment

Blockchain Engineer Seeking an experienced Blockchain Engineer specializing in Hyperledger Fabric to develop and optimize blockchain solutions. Gala is creating entertainment that empowers on the blockchain, working with a global talent pool and leading brands in gaming, music, and film. The company values openness, ownership, and innovation, aiming to deliver unique products and experiences. The Blockchain Engineer will design, develop, and optimize blockchain solutions using Hyperledger Fabric, manage network deployment on Kubernetes, establish CI/CD workflows with AWS, and develop secure chaincode. The role requires deep knowledge of Fabric architecture, transaction flow, chaincode development in Go or JavaScript, and experience with Kubernetes, AWS, Terraform, and Flux. Extra credits include experience with NFTs, play-to-earn gaming, and remote work experience. Benefits include health coverage, unlimited PTO, paid parental leave, and more, primarily for U.S.-based employees. Blockchain Engineer Developer Relations (DevRel) galaxy entertainment hospitality casino dining entertainment gambling hopitality hotels leisure leisure-resorts motels tourism travel resorts gaming Hyperledger Fabric Kubernetes AWS Terraform Flux Go JavaScript goleveldb

Gala is looking for a Blockchain Engineer with expertise in Hyperledger Fabric to design, deploy, and maintain blockchain networks. The role involves working with cross-functional teams and implementing secure, scalable blockchain solutions.

Senior Back-End Software Engineer

Company with head quarters on PNPG - National Park Peneda-Geres ( Melgaço ) that provide leisure and accommodation services . Rural Tourism and a Camping Park at Lamas de Mouro. Specialist on outdoor activities as trekking , paintball , slide , Canyoning , Rafting , etc. Partner on some Public Events : Astronomy Festival

Versana is an industry-backed data and technology company on a mission to transform the syndicated loan market. By digitally capturing agent banks’ data on a real-time basis, Versana provides unprecedented transparency into loan level details and portfolio positions, bringing efficiency and velocity to the entire market. Through our centralized platform, participants can rest assured they are accessing the loan market’s most credible source of deal information. With the support of our investors, Versana is fast becoming the technology of choice to usher in the modernization of the syndicated loan market.

Versana is looking for a motivated Sr. Back-End Software Engineer to join their Application Development squad. The squad’s goal is to create, enhance and maintain Versana’s real-time syndicated loan data platform. You will work closely with seasoned technology leaders, and colleagues with diverse experience in a dynamic, agile environment. You must have experience in designing, developing, and deploying secure, performant, and scalable services. You must also have a passion for data and a strong understanding of cloud technologies and streaming data pipelines. You will play a key role in all facets of Versana’s data platform including development, testing, deployment, and support.

Key responsibilities include developing and owning back-end components, writing clean and efficient code, engaging in all phases of SDLC, collaborating with front-end engineers, participating in code reviews, building the technical foundation and culture, and troubleshooting platform issues.

Must-have qualifications include a BS or BA in Computer Science or related field, 7+ years of experience with Java (Spring/Spring Boot), proficiency with build tools (Git, Maven/Gradle, Artifactory), knowledge of REST APIs and GraphQL, experience with SQL and NoSQL databases, familiarity with state machines and stream processing pipelines, strong communication and problem-solving skills, and curiosity to learn.

Nice-to-have skills include knowledge of Docker and Kubernetes, experience with CI/CD pipelines, end-to-end testing frameworks, cloud experience (especially Azure), financial domain experience, familiarity with Syndicated Loans or Leveraged Finance, blockchain knowledge (DAML, Solidity), and mentoring abilities.

Versana is seeking a Senior Back-End Software Engineer to develop and maintain their real-time syndicated loan data platform.

Versana is an industry-backed data and technology company on a mission to transform the syndicated loan market. By digitally capturing agent banks’ data on a real-time basis, Versana provides unprecedented transparency into loan level details and portfolio positions, bringing efficiency and velocity to the entire market. Through our centralized platform, participants can rest assured they are accessing the loan market’s most credible source of deal information. With the support of our investors, Versana is fast becoming the technology of choice to usher in the modernization of the syndicated loan market.

Versana is looking for a motivated Sr. Back-End Software Engineer to join their Application Development squad. The squad’s goal is to create, enhance and maintain Versana’s real-time syndicated loan data platform. You will work closely with seasoned technology leaders, and colleagues with diverse experience in a dynamic, agile environment. You must have experience in designing, developing, and deploying secure, performant, and scalable services. You must also have a passion for data and a strong understanding of cloud technologies and streaming data pipelines. You will play a key role in all facets of Versana’s data platform including development, testing, deployment, and support.

Key responsibilities include developing and owning back-end components, writing clean and efficient code, engaging in all phases of SDLC, collaborating with front-end engineers, participating in code reviews, building the technical foundation and culture, and troubleshooting platform issues.

Must-have qualifications include a BS or BA in Computer Science or related field, 7+ years of experience with Java (Spring/Spring Boot), proficiency with build tools (Git, Maven/Gradle, Artifactory), knowledge of REST APIs and GraphQL, experience with SQL and NoSQL databases, familiarity with state machines and stream processing pipelines, strong communication and problem-solving skills, and curiosity to learn.

Nice-to-have skills include knowledge of Docker and Kubernetes, experience with CI/CD pipelines, end-to-end testing frameworks, cloud experience (especially Azure), financial domain experience, familiarity with Syndicated Loans or Leveraged Finance, blockchain knowledge (DAML, Solidity), and mentoring abilities.Requirements:<ul><li> BS or BA in Computer Science or related field</li><li> 7+ years of software development experience with Java (Spring/Spring Boot)</li><li> Adeptness at using build and development tools (Git, Maven/Gradle, Artifactory)</li><li> Knowledge of REST APIs and GraphQL</li><li> Experience working with databases (SQL and NoSQL)</li><li> Proficiency in state machines and stream processing pipelines</li><li> Ability to partner with multi-functional teams and pivot quickly</li><li> Strong communication, analytical and problem-solving skills</li><li> Curiosity and motivation to learn</li></ul>Benefits:<ul><li> Health insurance</li><li> Remote work options</li><li> Collaborative and dynamic work environment</li><li> Opportunities for professional growth</li><li> Participation in innovative financial technology projects</li></ul>

Versana Lda

Senior Back-End Software Engineer Versana is seeking a Senior Back-End Software Engineer to develop and maintain their real-time syndicated loan data platform. Versana is an industry-backed data and technology company on a mission to transform the syndicated loan market. By digitally capturing agent banks’ data on a real-time basis, Versana provides unprecedented transparency into loan level details and portfolio positions, bringing efficiency and velocity to the entire market. Through our centralized platform, participants can rest assured they are accessing the loan market’s most credible source of deal information. With the support of our investors, Versana is fast becoming the technology of choice to usher in the modernization of the syndicated loan market.

Versana is looking for a motivated Sr. Back-End Software Engineer to join their Application Development squad. The squad’s goal is to create, enhance and maintain Versana’s real-time syndicated loan data platform. You will work closely with seasoned technology leaders, and colleagues with diverse experience in a dynamic, agile environment. You must have experience in designing, developing, and deploying secure, performant, and scalable services. You must also have a passion for data and a strong understanding of cloud technologies and streaming data pipelines. You will play a key role in all facets of Versana’s data platform including development, testing, deployment, and support.

Key responsibilities include developing and owning back-end components, writing clean and efficient code, engaging in all phases of SDLC, collaborating with front-end engineers, participating in code reviews, building the technical foundation and culture, and troubleshooting platform issues.

Must-have qualifications include a BS or BA in Computer Science or related field, 7+ years of experience with Java (Spring/Spring Boot), proficiency with build tools (Git, Maven/Gradle, Artifactory), knowledge of REST APIs and GraphQL, experience with SQL and NoSQL databases, familiarity with state machines and stream processing pipelines, strong communication and problem-solving skills, and curiosity to learn.

Nice-to-have skills include knowledge of Docker and Kubernetes, experience with CI/CD pipelines, end-to-end testing frameworks, cloud experience (especially Azure), financial domain experience, familiarity with Syndicated Loans or Leveraged Finance, blockchain knowledge (DAML, Solidity), and mentoring abilities. Senior Back-End Software Engineer Engineer Versana Lda travel-arrangements leisure outdoor-activities tourism travel Charlotte North Carolina

Join Versana as a Senior Back-End Software Engineer to build scalable, secure services for their loan data platform. Collaborate with cross-functional teams in a dynamic environment to enhance their innovative financial technology solutions.

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