{"schemaVersion":"jobsearcher.job.v1","id":"c2ee8def364329239e7c85b1","url":"https://jobsearcher.com/jobs/c2ee8def364329239e7c85b1","canonicalUrl":"https://jobsearcher.com/jobs/c2ee8def364329239e7c85b1","title":"Senior Full Stack Engineer","description":"Sincere is looking for a Senior Full Stack Engineer to help us make our products meaningfully better. This is a high-ownership individual contributor role for a seasoned engineer who can take a broad product area, understand the customer and business needs, and ship high-quality improvements.\nYou will:\nBuild full-stack features across Ruby on Rails and Next.js\nOwn product initiatives end-to-end, from identifying opportunities and shaping solutions through implementation, launch, and iteration\nPartner with product/project managers and designers to identify customer pain points, uncover product opportunities, and deliver meaningful improvements\nUse tools like Claude Code and Codex as a core part of your workflow to explore, develop, test, and ship\nMake practical technical decisions that balance speed, quality, maintainability, performance, and customer impact\nBuild polished, reliable, easy-to-use experiences with strong attention to UX\nUse tools like Datadog and Mixpanel to monitor production behavior, investigate issues, and inform product decisions\nChampion new ideas and continuously look for ways to improve our products, engineering practices, and customer experience\nYou are:\nA seasoned full-stack engineer with 7+ years of professional software development experience\nComfortable working across our stack, including Ruby on Rails, TypeScript, React, Next.js, MySQL/Postgres, Redis, MongoDB, Sidekiq, OpenSearch, AWS, and Docker\nFluent with AI-assisted development tools such as Claude Code or Codex\nProven at building and maintaining large-scale customer-facing web applications\nProduct-minded, with strong instincts for customer needs, UX quality, business value, and technical tradeoffs\nA self-starter who brings structure to loosely defined problems and drives them through execution\nA strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure (AWS), deployment, containerization, and infrastructure-as-code (Terraform) to collaborate effectively\nSkilled at working in mature codebases, understanding existing architecture, and improving systems pragmatically\nDetail-oriented, with high standards for both the code and the customer experience\nEntrepreneurial, curious, and biased toward building, experimenting, and shipping\nCollaborative and low-ego, with strong communication skills and pride in your craft\n\nBenefits\n\nDo you want to work at a growing company that invests in its team more than the average employer? Sincere is a family of brands with heart. The Company is home to Punchbowl®, Lovebird®, Timehop®, and Memento®, and builds technology that brings you closer and helps show you care to the people who matter the most. With Sincere Foundation, we support organizations that address basic needs, and envision a future where everyone has the opportunity to celebrate, recognize milestones, and honor memories. We provide a fun, casual, and innovative environment where hard work is recognized and rewarded.\nWhat We Offer:\n100% Health, Dental & Vision coverage\n401K Plan with Profit Share\nAnnual bonus potential\nHealth & Wellness stipends\nPaid time off plus 12 paid holidays & Summer Fridays\nPaid parental leave\nChildcare benefits (dependent care FSA)\nFlexible, hybrid work environment\nIn-person, all-expenses-paid Team Summits (2X a year)\n\nPLEASE NOTE: Our team is primarily based in Greater Boston. We will consider applicants who reside anywhere within a 2 hour drive of the city. While this role is remote, we have occasional in-person meetings at the office (every 4-6 weeks typically).\n\nThe base salary range for this role is $110,000 - $130,000. Actual salary may vary based on skills and experience.","company":"Sincere","rawCompany":"sincere","city":"Framingham","state":"MA","isRemote":false,"isActive":true,"createdAt":"2026-07-30T11:33:11.196Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Full Stack Engineer","description":"Sincere is looking for a Senior Full Stack Engineer to help us make our products meaningfully better. This is a high-ownership individual contributor role for a seasoned engineer who can take a broad product area, understand the customer and business needs, and ship high-quality improvements.\nYou will:\nBuild full-stack features across Ruby on Rails and Next.js\nOwn product initiatives end-to-end, from identifying opportunities and shaping solutions through implementation, launch, and iteration\nPartner with product/project managers and designers to identify customer pain points, uncover product opportunities, and deliver meaningful improvements\nUse tools like Claude Code and Codex as a core part of your workflow to explore, develop, test, and ship\nMake practical technical decisions that balance speed, quality, maintainability, performance, and customer impact\nBuild polished, reliable, easy-to-use experiences with strong attention to UX\nUse tools like Datadog and Mixpanel to monitor production behavior, investigate issues, and inform product decisions\nChampion new ideas and continuously look for ways to improve our products, engineering practices, and customer experience\nYou are:\nA seasoned full-stack engineer with 7+ years of professional software development experience\nComfortable working across our stack, including Ruby on Rails, TypeScript, React, Next.js, MySQL/Postgres, Redis, MongoDB, Sidekiq, OpenSearch, AWS, and Docker\nFluent with AI-assisted development tools such as Claude Code or Codex\nProven at building and maintaining large-scale customer-facing web applications\nProduct-minded, with strong instincts for customer needs, UX quality, business value, and technical tradeoffs\nA self-starter who brings structure to loosely defined problems and drives them through execution\nA strong partner to DevOps, with enough understanding of system architecture, cloud infrastructure (AWS), deployment, containerization, and infrastructure-as-code (Terraform) to collaborate effectively\nSkilled at working in mature codebases, understanding existing architecture, and improving systems pragmatically\nDetail-oriented, with high standards for both the code and the customer experience\nEntrepreneurial, curious, and biased toward building, experimenting, and shipping\nCollaborative and low-ego, with strong communication skills and pride in your craft\n\nBenefits\n\nDo you want to work at a growing company that invests in its team more than the average employer? Sincere is a family of brands with heart. The Company is home to Punchbowl®, Lovebird®, Timehop®, and Memento®, and builds technology that brings you closer and helps show you care to the people who matter the most. With Sincere Foundation, we support organizations that address basic needs, and envision a future where everyone has the opportunity to celebrate, recognize milestones, and honor memories. We provide a fun, casual, and innovative environment where hard work is recognized and rewarded.\nWhat We Offer:\n100% Health, Dental & Vision coverage\n401K Plan with Profit Share\nAnnual bonus potential\nHealth & Wellness stipends\nPaid time off plus 12 paid holidays & Summer Fridays\nPaid parental leave\nChildcare benefits (dependent care FSA)\nFlexible, hybrid work environment\nIn-person, all-expenses-paid Team Summits (2X a year)\n\nPLEASE NOTE: Our team is primarily based in Greater Boston. We will consider applicants who reside anywhere within a 2 hour drive of the city. While this role is remote, we have occasional in-person meetings at the office (every 4-6 weeks typically).\n\nThe base salary range for this role is $110,000 - $130,000. Actual salary may vary based on skills and experience.","datePosted":"2026-07-30T11:33:11.196Z","dateModified":"2026-07-30T11:33:11.196Z","hiringOrganization":{"@type":"Organization","name":"Sincere","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Framingham","addressRegion":"MA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"c2ee8def364329239e7c85b1"},"url":"https://jobsearcher.com/jobs/c2ee8def364329239e7c85b1"}}