CONSULTANT - Ruby on Rails (RoR) Architect - AWS Expertise (Mumbai, IN) @ ATOS International

<p><strong>About Atos Group</strong></p> <p> </p> <p><a title="" href="https://atosgroup.com/" target="_self">Atos Group</a> is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is the brand under which Atos SE (Societas Europaea) operates. Atos SE listed on Euronext Paris. </p> <p><br>The <a title="" href="https://atosgroup.com/en/our-group/leadership" target="_self">purpose of Atos Group</a> is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space. </p><p> </p> <p><strong>Job Title</strong>: Ruby on Rails (RoR) Architect – AWS Expertise</p> <p><strong>Experience</strong> – 10 + years</p> <p><strong>Must Have Skills</strong> – ROR + AWS</p> <p><strong>Location </strong>- Mumbai / Pune / Chennai</p> <p><strong>Good to have</strong> - Ruby on Rails-CSS, SQL, AWS Amazon S3, Ruby on Rails, jQuery, JavaScript.</p> <p><strong> </strong></p> <p><strong>Role Overview</strong></p> <p>We are seeking a highly skilled <strong>RoR Architect</strong> with deep expertise in designing, architecting, and delivering scalable backend systems using <strong>Ruby on Rails</strong> and <strong>AWS cloud services</strong>. The ideal candidate will bring strong hands‑on technical capability along with architectural decision-making experience.</p> <div align="center"><hr align="center" size="2" width="100%"></div> <p><strong>Key Responsibilities</strong></p> <ul style="list-style-type:disc" type="disc"> <li>Architect, design, and lead development of large‑scale, high‑performance applications using <strong>Ruby on Rails</strong>.</li> <li>Define and implement cloud-native architectures on <strong>AWS (EC2, RDS, S3, Lambda, CloudFormation, etc.)</strong>.</li> <li>Build and optimize <strong>RESTful APIs</strong>, ensuring best security and performance practices.</li> <li>Lead end-to-end application lifecycle including design, development, deployment, and optimization.</li> <li>Perform code reviews, enforce coding standards, and guide best practices for RoR development.</li> <li>Integrate multiple data sources, third‑party services, and internal APIs.</li> <li>Ensure system scalability, reliability, and security across all architecture layers.</li> <li>Drive CI/CD pipeline implementation and automation using Git and DevOps tools.</li> <li>Collaborate with stakeholders, product teams, and developers to translate requirements into robust solutions.</li> <li>(Preferred) Implement and manage <strong>OKTA SSO</strong> integrations.</li> </ul> <div align="center"><hr align="center" size="2" width="100%"></div> <p><strong>Required Skills &amp; Experience</strong></p> <ul style="list-style-type:disc" type="disc"> <li>10+ years of hands-on experience in <strong>Ruby on Rails</strong> development.</li> <li>Proven experience architecting systems on <strong>AWS</strong> with deep knowledge of core services.</li> <li>Strong understanding of <strong>object‑oriented programming</strong>, Ruby syntax, and idioms.</li> <li>Experience with <strong>server-side templating</strong> (Liquid, Slim) and CSS preprocessors.</li> <li>Good understanding of front-end basics: <strong>JavaScript, HTML5, CSS3, jQuery</strong>.</li> <li>Expertise in integrating multiple data sources/databases in distributed systems.</li> <li>Strong knowledge of <strong>scalable architecture principles</strong>.</li> <li>Experience with <strong>Git</strong>, CI/CD tools, and DevOps workflows.</li> </ul> <div align="center"><hr align="center" size="2" width="100%"></div> <p><strong>Preferred</strong></p> <ul style="list-style-type:disc" type="disc"> <li>Experience with <strong>OKTA SSO</strong> or similar identity platforms.</li> <li>Knowledge of microservices, containers (Docker/Kubernetes), and cloud-native patterns.</li> <li>Ability to mentor and lead engineering teams.</li> </ul> <p> </p> <p> </p><p> </p> <p> </p> <p>Here at Atos, diversity and inclusion are embedded in our DNA. <a title="" href="https://www.atosgroup.com/en/our-group/csr/social" target="_self">Read more</a> about our commitment to a fair work environment for all.<br> </p> <p> </p> <p>Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. <a title="" href="https://atos.net/en/about-us/corporate-responsibility-and-sustainability" target="_self">Find out</a> more on our CSR commitment. </p> <p style="text-align:center"> </p> <p style="text-align:center"><br><strong>Choose your future. Choose Atos.</strong></p> <p> </p> <p> </p>