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Senior Software Engineer - Backend/Python (USA Only - 100% Remote)

  2026-01-13     Close     all cities,AK  
Description:

divh2Software Engineer/h2pYou will be joining one of our six cross-functional teams. These are the CRM, Admin Onboarding, Conversations, Messaging Scheduling, Automations Integrations, and Data Insights teams. You will be regularly collaborating with other backend frontend engineers, product managers, designers, and other teams here at Close./ppYou are a curiosity-led, high-performing, full-time Software Engineer who is impassioned by the impact your work can have on your fellow team members and, ultimately, our end users. You value collaboration, knowledge sharing, and have a good understanding of web technologies and want to help design, implement, launch, and scale major systems and user-facing features./ppYoure comfortable working in a fast-paced environment with a small and talented team where youre supported in your efforts to grow professionally. Youre able to manage time well, communicate effectively, and collaborate in a fully distributed team./ppstrongCome help us with projects like.../strong/pulliConceiving, designing, building, and launching new user-facing features/liliImplementing new AI features to turbocharge our customers daily tasks/liliImproving the performance and scalability of our GraphQL and REST API/liliImproving how we sync millions of sales emails and calendar events each month/liliWorking with Twilios API, WebSockets, and WebRTC to improve our calling features/liliBuilding user-facing analytics features that provide actionable insights based on sales activity data/liliImproving our Elasticsearch-backed powerful search features/liliImproving our internal messaging infrastructure using streaming technologies like Kafka and Redis/liliBuilding new and enhancing existing integrations with other SaaS platforms like Googles G Suite, Zapier, and web conferencing providers/liliEnhancing our web app with real-time updates powered by GraphQL Subscriptions/liliLeveraging the latest AI LLMs from providers like OpenAI, Groq, and AssemblyAI/lipstrongHelp manage our ever growing data processing needs/strong/pulliBillions of Mongo documents/liliMillions and millions of rows of PostgreSQL data/lili55 Terabytes of logs / month/lili500 billion OTEL spans over the last 30 days/lili10+ million events / day/liliTens of thousands of docker containers/lili7 million minutes of call recordings / month/liliPetabytes / month of network traffic/li/ulpstrongRequirements.../strong/pulliSenior 1 2 level candidates should have 5+ years of experience building modern back-end systems./liliStaff level candidates should have 8+ years of experience./liliProfessional Python experience is preferred but a working knowledge of Python with additional experience in other languages is acceptable if you have a desire to work with Python./liliYou have built web APIs that were Internet facing or supported other high volume loads./liliYou have hands-on production experience working with MongoDB, PostgreSQL, Elasticsearch, or similar data stores./liliYou have experience designing, scaling, debugging, and optimizing systems to make them fast and reliable./liliYou have participated in code reviews and provided overall code quality suggestions to help maintain the structure and quality of the codebase./liliYou care about the craftsmanship of the code and systems you produce./liliYou are able to speak and write in English/liliYou are located in the USA (ET, CT, MT, PT)/li/ulpstrongBonus point if you have/strong/pulliContributed open source code related to our tech stack./liliLed small project teams building and launching features./liliBuilt B2B SaaS products./liliImplemented features that leveraged AI to deliver unimaginable new product capabilities./liliWorked with complex architectures that support multiple APIs (e.g. REST, GQL, WebSockets) as well as async task and event processing frameworks./li/ulpCompetitive compensation including an organization-wide goal-based bonus/ppPaid Time Off: 5 Weeks PTO upon joining + Winter Holiday Break. Each year with the company, youll receive 2 additional PTO days/pp80% Work Option: Work with your manager to choose between working 5 day weeks (standard full-time) or 4 day weeks @ 80% pay/ppPaid Parental Leave for primary and secondary caregivers/ppSabbatical: After 5 years with the team, youre eligible for a 1 month paid sabbatical/ppHealthcare (US residents): Medical, Dental, Vision with HSA option (US residents), Dependent care FSA (US residents)/pp401k (US residents): We match 6% contributions with immediate vesting/ppBuild a house you want to live in - Examine long-term thinking and action/ppNo BS - Practice transparency and honesty, especially when its hard/ppInvest in each other - Build successful relationships with your coworkers and customers/ppDiscipline equals freedom - Keep your word to yourself and others/ppStrive for greatness - Constantly challenge yourself and others/p/ul/div


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