{"id":775005,"url":"https://alion.io/job/sigmoid-full-stack-software-development-engineer-ii","title":"Full Stack Software Development Engineer II","company":{"id":1528,"name":"Sigmoid","domain":"sigmoid.com","url":"https://alion.io/company/sigmoid","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":70,"open_postings":28,"ghost_share":0.5,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":41,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Clean Architecture","optional":false},{"name":"FastAPI","optional":false},{"name":"Jest","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prisma","optional":false},{"name":"Pytest","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Redux Toolkit","optional":false},{"name":"Scrum","optional":false},{"name":"shadcn/ui","optional":false},{"name":"SQLAlchemy","optional":false},{"name":"State Management","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"TypeORM","optional":false},{"name":"TypeScript","optional":false},{"name":"Zustand","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"GCP","optional":true},{"name":"GraphQL","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"OWASP Top 10","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Radix UI","optional":true},{"name":"Redis","optional":true},{"name":"Redux","optional":true},{"name":"WhatsApp","optional":true}],"status":"live","first_seen_at":"2026-08-24T13:52:57Z","employer_posted_date":"2026-08-24","last_verified_at":"2026-10-16T07:10:03Z","board_verified":true,"closed_at":null,"days_open":52,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":52},"description":"Job Title: Full Stack Software Development Engineer II (SDE II)\nTeam: Product Engineering\nLocation: Bangalore, India\nEmployment Type: Full-time\nAbout the Role\nAs a Full Stack SDE II in Sigmoid's Product Engineering team, you will take ownership of building scalable, reliable, and user-centric web applications. You will collaborate closely with product managers, designers, and system architects to drive features from design to deployment, ensuring robust frontend performance, clean backend services, and efficient database architectures.\nKey Responsibilities\nFull Stack Development\nDesign and build responsive, high-performance web interfaces using React, TypeScript, Tailwind CSS, and Shadcn UI, backed by reliable API services using Node.js or Python (FastAPI).\nDatabase & API Design\nModel, query, and optimize relational data structures in PostgreSQL.\nDesign, build, and maintain clean RESTful APIs and microservices.\nCode Quality & Best Practices\nApply SOLID principles, basic design patterns, and clean code principles to write maintainable, scalable, and self-documenting code.\nTesting & Quality Assurance\nImplement comprehensive test suites using Jest, React Testing Library, or backend testing frameworks (e.g., PyTest) to maintain high code coverage and prevent regressions.\nAgile Execution\nActively participate in Agile ceremonies (sprints, stand-ups, retrospectives, and planning) to deliver quality code incrementally.\nCollaboration & Mentorship\nPartner with cross-functional teams and mentor junior engineers through constructive code reviews and technical guidance.\nRequirements & Qualifications\nTechnical Skills\nFrontend\n3-5 years of hands-on experience with React, TypeScript, Tailwind CSS, and modern UI component libraries like Shadcn UI.\nState & Data Fetching\nExperience with modern client-side state management and data-fetching libraries (TanStack Query, Zustand, or Redux Toolkit).\nBackend\nStrong expertise in server-side development using Node.js or Python (FastAPI).\nORMs & Data Layer\nExperience with ORMs or Query Builders such as Prisma, Drizzle, TypeORM, or SQLAlchemy.\nDatabase\nStrong expertise in relational database modeling, query optimization, indexing, and management with PostgreSQL.\nSystem Design & Patterns\nPractical experience applying SOLID principles, basic software design patterns (Factory, Singleton, Observer, etc.), and clean architecture principles.\nAPI Development\nSolid grasp of API design standards, authentication/authorization using OIDC and OAuth 2.0, and backend-frontend integration.\nTesting\nProficiency in unit, integration, and component testing using Jest, React Testing Library, and PyTest.\nMethodologies\nStrong operational knowledge of Agile/Scrum software development workflows.\nCulture & Mindset\nAnalytical & Data-Driven\nProblem-solver who relies on metrics, root-cause analysis, and objective evidence to make sound technical and design choices.\nEntrepreneurial & Agile\nThrives in a fast-paced, high-growth environment, displaying high ownership, adaptability, and resilience.\nLeader & Doer\nBalanced builder who can lead initiatives and mentor peers while remaining deeply hands-on in code implementation and debugging.\nCommunication\nExceptional written and verbal communication skills to articulate technical concepts, align with stakeholders, and author quality documentation.\nNice to Have\nDatabase & Caching\nExperience with caching strategies using Redis, or exposure to NoSQL databases (e.g., MongoDB).\nArchitecture & APIs\nExposure to GraphQL, microservices architecture, and event-driven patterns (e.g., Kafka, RabbitMQ).\nCloud & DevOps\nHands-on experience with containerization (Docker, Kubernetes), CI/CD pipelines, and cloud infrastructure (AWS, GCP, or Azure).\nSecurity & Performance\nUnderstanding of web security best practices (OWASP Top 10, OAuth2, JWT) and web performance optimization techniques.\nNote:\nBy submitting your application, you consent to being contacted by our Talent Acquisition team via phone call, email, SMS, WhatsApp, or other communication channels regarding your application and relevant career 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