Talent.com
Hybrid Engineer (Mobile & Backend)
Hybrid Engineer (Mobile & Backend)Toka • Thane, IN
Hybrid Engineer (Mobile & Backend)

Hybrid Engineer (Mobile & Backend)

Toka • Thane, IN
5 hours ago
Job description

Location : Remote (preferred India-based)

Type : Contract (with potential to join founding team full-time + equity)

Toka is on a mission to make secondhand, first choice.

We’re building the world’s first AI-native resale platform for furniture and home goods. Imagine if buying secondhand felt as smooth, beautiful, and reliable as buying new. We’re aiming to be the amazon of resale.

We’ve locked in design + product direction, and now we’re expanding our team with a Full stack engineer to help us ship fast, test bold ideas, and join Toka's world class engineering team.

What you’ll do

  • Develop Core Backend Services : Design, develop, and maintain production-ready Java 21 microservices using Spring Boot 3.x (Web, Security, Validation) for high-performance and scalable application functionality.
  • Implement Cloud Persistence : Engineer efficient and secure data models and CRUD operations utilizing Google Cloud Firestore as the primary NoSQL data store.
  • Integrate Third-Party APIs : Implement complex integrations, focusing on Firebase Admin SDK for authentication / security and the Stripe Java SDK for critical flows like Identity Verification and secure webhook processing.
  • Build Cross-Platform Features : Develop new user-facing features for our mobile application using React Native (Expo), adhering to a modular, layered architecture with distinct feature modules.
  • Manage Application State & UI : Implement robust state management in the frontend, defining data models, custom hooks, and UI screens / components within the design system and feature modules.
  • Ensure Code Quality & CI / CD : Write comprehensive unit and integration tests (JUnit 5, Mockito, Testcontainers with Firestore Emulator) and maintain code quality standards (Spotless, ESLint, Prettier) enforced via GitHub Actions CI pipelines.
  • Maintain Security Posture : Ensure all API endpoints are secured using the custom Firebase ID token filter, enforce Token UID match, and handle sensitive data / webhook signatures securely.
  • Collaborate & Optimize : Work closely with (ex-Atlassian) founders to turn product direction into working software, participating in code reviews and optimizing services for performance and reliability.

Must-have (4+ Years Experience)

  • Backend Expertise : Strong proficiency in Java 21+ and extensive experience developing robust, scalable APIs with Spring Boot 3.x and the Spring ecosystem (Security, Web, Data).
  • Cloud Persistence : Hands-on experience with Google Cloud Firestore or other NoSQL databases, including indexing and query optimization.
  • API Integration & Security : Proven ability to integrate and secure external services, particularly Firebase Authentication and / or complex payment / identity platforms like Stripe .
  • Frontend Proficiency : Solid experience developing mobile applications using React Native and the Expo framework, with a deep understanding of component lifecycle, hooks, and performance best practices.
  • State Management : Experience with a modern state management library (or similar patterns like Redux / MobX / Context) and implementing a clear, modular frontend architecture.
  • Testing & CI / CD : Proficient with unit and integration testing frameworks ( JUnit, Mockito, Testcontainers ) and familiarity with continuous integration tools ( GitHub Actions, Gradle ).
  • Development Principles : Strong grasp of software design patterns, RESTful API design ( OpenAPI / Swagger ), and adhering to strict code style and quality standards.
  • Curiosity + willingness to learn new stacks quickly.
  • Preferred

  • Kotlin DSL / Gradle : Familiarity with Gradle for build management, especially using the Kotlin DSL .
  • Testcontainers : Direct experience utilizing Testcontainers for local, reliable integration testing against real services / emulators (e.g., Firestore Emulator).
  • Microservice Architecture : Experience working within a microservices environment and understanding concepts like service discovery, configuration management, and distributed tracing.
  • Mobile Build Process : Experience managing different build variants ( Development / Production Debug / Release ) and understanding the Expo bare workflow with config plugins.
  • Security Deep Dive : Experience implementing advanced security features like API rate limiting, robust input validation, and secure handling of webhook signatures.
  • Cross-Platform UI / UX : A keen eye for mobile UI / UX and experience building a reusable design system or component library. What You'll Do
  • Backend Development : Design and maintain scalable Java 21 Spring Boot 3.x microservices.
  • Data Persistence : Implement secure data models and CRUD using Google Cloud Firestore (NoSQL).
  • API Integration : Integrate complex third-party APIs like Firebase Admin SDK and Stripe Java SDK (Identity Verification, webhooks).
  • Mobile Feature Development : Build cross-platform user features for mobile using React Native (Expo) within a modular architecture.
  • Frontend State & UI : Manage application state, define data models, custom hooks, and build UI components based on the design system.
  • Quality & CI / CD : Write unit / integration tests (JUnit 5, Testcontainers with Firestore Emulator) and enforce code quality (Spotless, ESLint) via GitHub Actions.
  • Security : Secure all API endpoints using Firebase ID token filters, enforce UID matching, and handle sensitive data securely.
  • Collaboration : Work with founders, participate in code reviews, and optimize services for performance.
  • Why join us?

  • Founding team mindset → This is not just another contract gig. You’ll be building alongside the founders and early hires, shaping how Toka works from the ground up.
  • Contract-first, core intent → We start flexible, but the goal is clear : grow into the founding engineering team. Equity and long-term ownership are on the table if it’s the right fit.
  • Collaboration at the core → We believe the best work comes from tight collaboration — async-first, transparent, and with everyone thinking like an owner.
  • Impact that matters → Resale furniture is a $50B+ vertical waiting to be reinvented. Your work will directly reduce waste and carbon emissions at scale.

    Create a job alert for this search

    Backend Engineer • Thane, IN

    Related jobs
    Senior Backend Engineer (Golang / Java)

    Senior Backend Engineer (Golang / Java)

    Lxme • Mumbai, Maharashtra, India
    About LXME : LXME is India’s first financial platform curated exclusively for women.We are on a mission to empower millions of women to take control of their financial futures.Backed by factual ins...Show more
    Last updated: 30+ days ago • Promoted
    Backend Engineer (SDE-2)

    Backend Engineer (SDE-2)

    Air iQ Online • Kalyan-Dombivli, IN
    We are seeking a Backend Engineer (SDE-2) with 3–5 years of experience,.As an SDE-2, you will play a key.This position is ideal for engineers. Design, develop, and maintain scalable, high-performanc...Show more
    Last updated: 9 hours ago • Promoted • New!
    Platform Engineer – Java / BigData / Kubernetes

    Platform Engineer – Java / BigData / Kubernetes

    Syntasa • Mumbai, IN
    Platform Engineer – Java / BigData / Kubernetes.Syntasa is seeking a high-caliber and dedicated.Syntasa Technologies India Private Limited. This position offers an exciting opportunity to contribute t...Show more
    Last updated: 29 days ago • Promoted
    Sr. Backend Engineer

    Sr. Backend Engineer

    1DigitalStack • Kalyan-Dombivli, IN
    AI and deep eCommerce data to help global brands grow faster on online marketplaces.Our platforms deliver advanced analytics, actionable intelligence, and media automation — enabling brands to opti...Show more
    Last updated: 19 days ago • Promoted
    Software Engineer Backend

    Software Engineer Backend

    Solvei8 • Kalyan-Dombivli, IN
    Solvei8 (pronounced solve-it) is a one-stop integrated factory cloud solutions provider for the apparel and footwear industry, under the parent company Buyogo AG. With innovation, agility, and custo...Show more
    Last updated: 19 days ago • Promoted
    Android Engineer

    Android Engineer

    People Prime Worldwide • dombivli, maharashtra, in
    Our client is a Palo Alto–based AI infrastructure and talent platform founded in 2018.It helps companies connect with remote software developers using AI-powered vetting and matching technology.Ori...Show more
    Last updated: 7 hours ago • Promoted • New!
    Lead Mobile Engineer

    Lead Mobile Engineer

    Senpi • dombivli, maharashtra, in
    In just four months since launching on Base, Senpi has processed.Backed with $4M in Seed capital by top investors including Lemniscap, Coinbase Ventures, and SuperLayer, we’re building on a track r...Show more
    Last updated: 30+ days ago • Promoted
    GTM Engineer

    GTM Engineer

    FullFunnel • Thane, IN
    At FullFunnel, we don’t believe growth should rely on manual grind—we believe in.That’s why we’re looking for a.This is not your average ops role. If you geek out on solving complex system puzzles a...Show more
    Last updated: 30+ days ago • Promoted
    Senior Mobile Developer (Flutter)

    Senior Mobile Developer (Flutter)

    NEOGOV • Kalyan-Dombivli, IN
    HRIS Product company based in Los Angeles is the market and technology leader in human resources software for the public sector. Our HR suite empowers public sector HR to streamline processes in a c...Show more
    Last updated: 30+ days ago • Promoted
    Senior Backend Engineer

    Senior Backend Engineer

    Blossom Social • Thane, IN
    Blossom Social is building the future of social investing.Our platform empowers retail investors by combining the best of social networks with investing tools—enabling users to connect, learn, and ...Show more
    Last updated: 30+ days ago • Promoted
    Senior Backend Engineer - AI-Augmented Development

    Senior Backend Engineer - AI-Augmented Development

    Truey • Kalyan-Dombivli, IN
    Senior Backend Engineer - AI-Augmented Development 🚀.Remote-first | Experience : 5+ years | Type : Full-time.C2C with your own LLC considered. .We're building the next generation of AI-powered web ap...Show more
    Last updated: 29 days ago • Promoted
    Platform Engineer

    Platform Engineer

    Simple Logic IT Private Limited • Mumbai, Maharashtra, India
    Dear Candidates, We are looking for an experienced OpenShift Administrator with a strong Linux background and hands-on experience managing production-grade OpenShift clusters (OCP v4).The candidat...Show more
    Last updated: 7 days ago • Promoted
    Lead Backend Engineer

    Lead Backend Engineer

    Senpi • Mumbai, IN
    In just four months since launching on Base, Senpi has processed.Backed with $4M in Seed capital by top investors including Lemniscap, Coinbase Ventures, and SuperLayer, we’re building on a track r...Show more
    Last updated: 30+ days ago • Promoted
    Senior Backend Engineer

    Senior Backend Engineer

    VDEX • Mumbai, IN
    VDEX is a rapidly-growing perpetual exchange powered by zero knowledge state channels.The exchange recently surpassed $2 billion in volume and is incubated by Binance Labs.Responsibilities and Requ...Show more
    Last updated: 5 days ago • Promoted
    AWS Cloud Engineer

    AWS Cloud Engineer

    Proglite • Thane, IN
    Infrastructure & System Administration : .Deploy, manage, and optimize EC2 instances across dev, test, and production environments. Perform system administration and troubleshooting for Linux and Wind...Show more
    Last updated: 30+ days ago • Promoted
    Hybrid Engineer (Mobile & Backend)

    Hybrid Engineer (Mobile & Backend)

    Toka • Kalyan-Dombivli, IN
    Remote (preferred India-based).Contract (with potential to join founding team full-time + equity).We’re building the world’s first. Imagine if buying secondhand felt as smooth, beautiful, and reliab...Show more
    Last updated: 5 hours ago • Promoted • New!
    Golang Backend Engineer

    Golang Backend Engineer

    Hyqoo • Mumbai, IN
    Job Title : Backend Engineer (Golang).Duration : 6+ months with possibility of extensions.Time Zone : IST hours 9am to 6pm. Design, develop, and maintain backend services using Golang within a microser...Show more
    Last updated: 12 days ago • Promoted
    Backend Engineer – Go

    Backend Engineer – Go

    InCommon • Thane, IN
    InCommon is hiring on behalf of Podifi.Palo Alto that helps startups and enterprises build full-stack applications through lean, AI-augmented teams. Their model blends product, design, and engineeri...Show more
    Last updated: 30+ days ago • Promoted