Kotlin Jobs

Sysco is looking for a Senior Android Engineer to architect and implement high-quality Android applications using Kotlin, modern concurrency frameworks, and best-practice engineering standards.

Lead Owlet's Android and iOS mobile engineering teams to deliver safety-focused IoT apps used by millions of parents.

Bumble is looking for a Software Engineering Intern to help build Bumble 2.0—contributing across frontend, backend, and AI-enabled features while learning cloud and scalable architecture practices.

Experienced engineering leader needed to build scalable, secure APIs and SDKs that integrate SandboxAQ’s cybersecurity platform with enterprise tools like CrowdStrike, Qualys, and Splunk.

Senior Mobile Apps Developer needed to build and maintain secure, high-performance iOS/Android applications for the NYC Department of Correction, collaborating across design, backend, and operations teams.

Experienced Kotlin/Java backend engineer wanted to design and deliver robust identity and authentication services across cloud-native projects at Mindera.

FleetPulse is hiring a part-time Software Engineer Intern in Chicago to work on the React Native mobile app and gain hands-on experience with full-stack telematics solutions.

Dental Insurance

Disability Insurance

Vision Insurance

Equity

Paid Time-Off

Medical Insurance

Mental Health Resources

Paid Holidays

Company Retreats

Senior Software Engineer needed to own and scale backend and customer-facing systems for Hims & Hers' clinical care platform, driving technical direction and coaching teammates.

Lead and grow engineering teams building native mobile apps and cloud backends for Truist, driving architecture, delivery, and operational excellence while fostering a builder-first culture.

Lead the design and delivery of scalable embedded finance backend services at Toast, leveraging your deep Java/Kotlin and distributed systems experience to expand financial products for restaurants.

Mission Driven

Customer-Centric

Transparent & Candid

Growth & Learning

Fast-Paced

Inclusive & Diverse

Work/Life Harmony

Rise from Within

Medical Insurance

Dental Insurance

Vision Insurance

Mental Health Resources

Life insurance

Disability Insurance

Health Savings Account (HSA)

Flexible Spending Account (FSA)

Education Stipend

Learning & Development

Bias Training

Performance Bonus

HubSpot is hiring a Senior Software Engineer II (Backend, Live Chat) to build and scale Java-based microservices powering high-throughput, low-latency chat and messaging systems for customers across the US.

Experienced Android SDK engineer needed to architect and deliver production-ready mobile SDKs for authentication, wallets, and payments on a remote contract basis across Spain or the United States.

Dental Insurance

Flexible Spending Account (FSA)

Vision Insurance

Paid Holidays

Develop production AI-driven and security-focused features at 1Password, contributing to secure AI adoption across millions of users.

Lead development of Complex’s Android app to deliver high-performance, content-and-commerce features using Kotlin and modern Android architecture.

A YC-backed Seed-stage EdTech company seeks a Full Stack Engineer to build web and mobile features that power a national network of families and educators.

Brillio is hiring a React Native Developer to build and optimize cross-platform mobile apps for enterprise clients on iOS and Android.

Ephemera seeks a Staff Software Engineer to lead development of XMTP's encrypted messaging protocol and mobile SDKs across iOS, Android, and React Native.

Bumble Inc. is seeking a Lead Backend Software Engineer in Austin to design and operate scalable AWS-native backend systems for Bumble Date while leading projects and mentoring engineers.

Bumble is hiring a Staff Backend Software Engineer to own and deliver scalable AWS-native backend systems that power the Bumble Date experience.

SpruceID is hiring a senior forward deployed mobile engineer to develop secure, accessible mobile apps for public-sector partners using Swift, Kotlin, Flutter, or React Native while working directly with customers.

Sanas is hiring a Senior Mobile App Engineer to own and ship core React Native features for a near real-time voice-to-voice translation product used by enterprise customers.

Experienced Senior Software Engineer needed to build Kotlin-based APIs for money movement at a technology-forward fintech partner, working remotely across AWS-powered systems.

Experienced crypto-focused senior engineer needed to architect non-custodial on-chain products, integrate DeFi protocols and wallets, and help scale Wealthsimple's secure crypto platform for millions of users.

Inclusive & Diverse

Diversity of Opinions

Collaboration over Competition

Transparent & Candid

Passion for Exploration

Rapid Growth

Social Impact Driven

Mission Driven

Medical Insurance

Dental Insurance

Vision Insurance

Maternity Leave

Paternity Leave

Paid Time-Off

Equity

401K Matching

Commuter Benefits

Learning & Development

WFH Reimbursements

Experienced Android engineers are needed to architect and ship high-impact mobile apps that harness advanced language models at Anthropic's Claude mobile team.

Lead development of cloud-native radiology workflow solutions using Kotlin and Spring Boot to improve diagnostic efficiency and patient outcomes at Intelerad.

StackHawk is hiring a Front End Engineer to build responsive, developer-focused UI features on a modern stack that make application security accessible inside CI/CD workflows.

Experienced Android-focused senior/staff engineer needed to drive mobile and backend architecture, deliver polished cross-platform applications, and mentor a growing engineering team at Flow.

Lead and shape Linus Health’s mobile platform as a Staff Software Engineer driving iOS (Swift) and React Native architecture, reusable components, and AI-enabled visualizations for clinical-grade brain-health products.

Wyetech seeks a hands-on Software Engineer I to develop and maintain containerized, high-performance microservices for large-scale streaming analytics in a secure federal environment.

Senior Android engineer sought to design and ship high-performance Kotlin apps at Jahnel Group, a growing, close-knit software consultancy working with security-conscious clients.

EliseAI is hiring a Full Stack & Mobile Software Engineer to build scalable mobile apps and backend services that automate leasing workflows and improve operational outcomes for customers.

Lead architecture and implementation of high-performance Android mapping apps for Esri’s Field Apps team, shaping solutions used in mission-critical field workflows.

Zimperium is hiring a Senior Software Engineer on the Device Team to architect, develop, and harden iOS and Android mobile security applications.

Experian is hiring a Senior Android Software Engineer to build and optimize its flagship Android app, contributing to feature development, performance improvements, and high-quality releases.

Bumble is hiring a Senior Android Software Engineer to own and ship scalable, secure Android features that serve millions of users while helping shape long-term mobile architecture.

Lead iOS development at Bumble to design, implement, and maintain scalable, secure features that serve millions of users while mentoring peers and driving architectural direction.

Redhorse Corporation is hiring a Forensics Software Engineer to conduct advanced Android and iOS device analysis, develop forensic capabilities, and support vulnerability research for federal clients.

Disney Entertainment and ESPN Product & Technology is hiring a Senior QA Engineer to lead development of test automation frameworks and CI/CD solutions for Disney+ and Hulu mobile platforms.

Help shape the next generation of Campus’s mobile education experience by building and shipping high-impact React Native features across iOS and Android.

Dental Insurance

Disability Insurance

Flexible Spending Account (FSA)

Vision Insurance

Family Medical Leave

Paid Holidays

Lead reliability and automation initiatives for Grindr’s production systems as a Staff Site Reliability Engineer on a hybrid Chicago-based team.

TEGNA seeks a React Native developer experienced with Fire TV and CTV platforms to build performant, large-screen streaming apps and integrate video, ad tech, and analytics.

Lead the architecture and scaling of Ridgeline's reporting platform, driving technical direction and mentoring engineers to deliver reliable, high-performance analytics services.

Work across TypeScript, Rust, React, and mobile stacks to build and operate Radar's high-throughput location infrastructure while partnering closely with customers and go-to-market teams.

Inclusive & Diverse

Collaboration over Competition

Growth & Learning

Transparent & Candid

Lead technical strategy and deliver highly available backend systems for Affirm’s loans ledger, ensuring precise accounting and robust data pipelines across the company.

Earnest seeks a remote Software Engineer to develop and operate backend lending systems using Kotlin, C#, SQL Server and AWS.

OpenSea is hiring a Staff iOS Engineer to lead the architecture and delivery of a world-class SwiftUI mobile app that brings users onchain.

Lead the creation of Limitless’s Android experience as the founding Android engineer, building performant, real-time mobile applications that deliver memory augmentation at scale.

At OPPO's US Research Center in Seattle, this Senior Software Engineer role focuses on building and optimizing high-performance embedded systems and Android/Linux frameworks for flagship mobile products.

Inclusive & Diverse

Feedback Forward

Collaboration over Competition

Growth & Learning

Senior Android engineer to design, implement, and optimize core features of the ChatGPT Android app, prioritizing performance, reliability, and delightful user experiences.

Observable Space is hiring a Full Stack Software Engineer to own backend microservices, reactive frontends, and C++ edge processing for its real-time space observation platform.