The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

The responsibilities of our Platform team include building and maintaining all backend services, including, but not limited to, payments, analytics, subscriptions, new products, text to speech, and external APIs.

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, is passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Design, develop, and maintain robust APIs including public TTS API, internal APIs like Payment, Subscription, Auth and Consumption Tracking, ensuring they meet business and scalability requirements
• Oversee the full backend API landscape, enhancing and optimizing for performance and maintainability
• Collaborate on B2B solutions, focusing on customization and integration needs for enterprise clients
• Work closely with cross-functional teams to align backend architecture with overall product strategy and user experience

An Ideal Candidate Should Have

• Proven experience in backend development: TS/Node (required)
• Direct experience with GCP and knowledge of AWS, Azure, or other cloud providers
• Efficiency in ideation and implementation, prioritizing tasks based on urgency and impact
• Preferred: Experience with Docker and containerized deployments
• Preferred: Proficiency in deploying high availability applications on Kubernetes

What We Offer

• A dynamic environment where your contributions shape the company and its products
• A team that values innovation, intuition, and drive
• Autonomy, fostering focus and creativity
• The opportunity to have a significant impact in a revolutionary industry
• Competitive compensation, a welcoming atmosphere, and a commitment to an exceptional asynchronous work culture
• The privilege of working on a product that changes lives, particularly for those with learning differences like dyslexia, ADD, and more
• An active role at the intersection of artificial intelligence and audio – a rapidly evolving tech domain

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Mission

Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone. We absorb it all and let you listen to it at your desk, on the go, at your own speed, and with tools that make learning easier, deeper, and faster.

What streaming services have done for audio entertainment, we’re doing for audio information. And whatever we’re doing seems to be working. We’re #1 in our category, and experiencing exponential growth.

Overview

We're looking for a Senior Software Engineer to join our Core Experiences Team. This team builds and maintains the foundational services and SDKs that power Speechify’s product experience across platforms. It's a critical role for someone who enjoys working at the intersection of product and infrastructure, thinks strategically, and is passionate about designing clear, reliable APIs and simple systems that directly enhance the user experience.

What You’ll Do

• Collaborate with Speechify’s Product Teams to scope projects, find ways to reduce scope to get faster feedback from customers, navigate the integration/UX tradeoffs relevant to different product teams, and deliver solutions via our cross-platform SDK
• Optimize existing functionality to ship things like faster loading and more intelligent parsing by designing more efficient abstractions and improving our algorithms
• Ship cloud functions, lightweight backend services, and jobs using Kotlin

An Ideal Candidate Should Have

• Systems thinking. You know that optimizing a system requires end-to-end design, and you believe simplicity is valuable.
• Speed. You work quickly to generate ideas and options and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
• Preferred Tech Stack:
  • Kotlin Multiplatform (Java experience is OK but role is Kotlin Multiplatform) 
  • Prior experience with GCP is a plus

What We Offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

We're looking to hire for our Data side of our AI team at Speechify. This role is responsible for all aspects of data collection to support our model training operations. We are able to build high-quality datasets at petabyte-scale and low cost through a tight integration of infrastructure, engineering, and research work. We are looking for a skilled Software Engineer to join us.

What You’ll Do

• Be scrappy to find new sources of audio data and bring it into our ingestion pipeline
• Operate and extend the cloud infrastructure for our ingestion pipeline, currently running on GCP and managed with Terraform.
• Collaborate closely with our Scientists to shift the cost/throughput/quality frontier, delivering richer data at bigger scale and lower cost to power our next-generation models.
• Collaborate with others on the AI Team and Speechify Leadership to craft the AI Team’s dataset roadmap to power Speechify’s next-generation consumer and enterprise products.

An Ideal Candidate Should Have

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of industry experience in software development.
• Proficiency with bash/Python scripting in Linux environments
• Proficiency in Docker and Infrastructure-as-Code concepts and professional experience with at least one major Cloud Provider (we use GCP)
• Experience with web crawlers, large-scale data processing workflows is a plus
• Ability to handle multiple tasks and adapt to changing priorities.
• Strong communication skills, both written and verbal.

What we offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest-growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

PayPayカードについて/About PayPay card

PayPayカード株式会社は、サービス開始からユーザー数7,000万人（2025年7月時点）を突破した「PayPay」の決済プラットフォームと融合させた形でこれまでのクレジットカード、クレジットサービスでは成し得なかったよりユーザーに身近で便利なフィンテックサービスを提供する為に2021年に誕生しました

AIを駆使した開発と、他社に真似できない圧倒的なスピードでプロダクトを磨き上げ、日本のキャッシュレス決済、またそれを使用した金融ライフプラットフォームとしての普及を一気に推進することにプロフェッショナルとして情熱を持って取り組み、ユーザーの為に新しい価値創出を共に推進する仲間を募集します。

本ポジションへの期待

PayPayカードのネットワークインフラのPJ推進、及び運用の中核メンバーとしての活躍を期待しています。
社内外のステークホルダーとコミュニケーションを取り、主体的に推進頂きます。併せて内製化も進めており、技術的なリードも期待します。

業務について

▼組織・チーム紹介

当社の情報システム部門は、従業員が安心して業務に取り組めるIT環境、及びミッションクリティカルなクレジットカードの業務ネットワークを安定的に提供することをミッションとしています。
オンプレミス、パブリッククラウド、SASEなど、多岐に渡るNW環境を支える重要な役割を担っています。

• Fact book for Engineer（エンジニア組織紹介資料）

▼募集背景

PayPayカードでは現在フルクラウド化を推進しており、オンプレミス環境を主体とした構成からクラウドやゼロトラストアーキテクチャへの移行が進み、まさに大きな変革期を迎えています。多様な技術要素が入り交じる複雑な環境の中で、安定した基盤を維持しながらも、柔軟に新しい仕組みを取り入れていくことが求められています。

マーケットのスピード感に対応すると同時に、中長期的な技術競争力を強化していくために、即戦力としてご活躍いただけるネットワークエンジニアを募集します。

【具体的な業務内容】

PayPayカードのネットワーク領域における各種プロジェクトや運用を担当していただきます。
適性・経験に応じて、以下のいずれかの領域をお任せします。

1．データセンターネットワーク／SASE基盤の設計・構築・運用
　・ルータ、スイッチ、ファイアウォール、ネットワーク系サーバの管理
　・クラウド移行（クラウドリフト）に伴う既存環境の課題分析、移行計画の立案・実行
　・ZTNA（ゼロトラストネットワークアクセス）、SWG（Secure Web Gateway）、CASB（Cloud Access Security Broker）といったSASE製品の設計・構築・検証・運用
　・セキュリティ強化施策や新規環境展開の推進

2．オフィスネットワークの設計・構築・運用・保守・改善
　・ルータ、スイッチ、ファイアウォール、無線LANなどのネットワーク機器の管理
　・フルクラウド化に向けたSaaS管理型ネットワーク機器の導入・推進
　・オフィスネットワーク環境の安定性・利便性向上に向けた改善活動

3．AWS環境におけるネットワーク設計・構築・運用
　・Direct Connect、Transit Gateway、VPNなどの設計・構築
　・AWS Network Firewallなどクラウドネイティブなセキュリティサービスの設定・運用
　・オンプレミスとクラウドをつなぐハイブリッド環境の設計・構築・最適化

上記に加え、共通して以下のような業務も担当いただきます。
・プロジェクト参画・推進
　-ネットワーク主導のプロジェクトの他、システム刷新や業務効率化、セキュリティ強化を目的としたプロジェクトに参画
　-関係部署と連携した計画立案、推進、進捗管理
　-要件定義～設計・構築・移行までを、内製またはベンダーと協力して遂行

・運用・改善業務
　-ネットワーク監視、障害対応、キャパシティプランニング
　-機器ライフサイクルに伴う更改（EoL対応など）
　-PCIDSSなど各種セキュリティ基準への準拠対応
　-ネットワークインフラの自動化・効率化の推進

▼本ポジションの魅力

• 金融システムという社会インフラの根幹を支えるネットワークインフラを自らの手で作り上げる大きなやりがいを感じられます
• オンプレミス、SASE、AWSといった異なるネットワーク環境を横断的に扱えるため、幅広い技術スキルと経験を積むことができます。

必要な経験/スキル

• ネットワークの設計・構築・運用経験（5年以上目安）
• 以下のいずれかのネットワーク機器に関する深い知識と実務経験
  • Cisco, Juniper, Palo Alto Networks, Fortinet などのオンプレミス機器
  • SASE製品の導入、運用経験
  • AWS、OCIなどのネットワークに関わる経験
  • Saas管理型のネットワーク機器の導入、運用経験
• 複数のプロジェクトのPL、PMまたは運用リーダーとしてQCD管理の経験
• 運用改善や自動化等の取り組み

あると望ましい経験/スキル

• SASEソリューションの導入・運用経験、および内製化を視野に入れた知見
• AWSなどのクラウド環境におけるネットワークの設計・構築・運用経験、および内製化に関する意欲
• ネットワークの可視化/自動化に関する知識・経験、および内製化への応用経験
• PCIDSS等のセキュリティに関する知識

PayPayカードが求める人物像

• PayPay 5 sensesに当てはまる方

待遇・条件

雇用形態

• 正社員

勤務地

• ハイブリッド（オフィスと在宅勤務）

リモートとオフィスでのハイブリットな形での勤務形態です。業務上セキュア環境下での作業などが必要な場合など出社要請があった際にはご出社頂く必要があります（東京オフィスまたは福岡オフィスへ出社頂けることが必須条件となります）

勤務時間

• フルフレックス制（コアタイム無し）
• 原則：午前9時～午後17時45分（実働7時間45分＋休憩時間 1時間）

休日

• 土日祝日、年末年始および会社指定日
  
  

休暇（法定休暇および会社福利厚生）

• 年次有給休暇(初年度16日間、入社月に応じて按分付与。入社日から使用可）

給与

• 年俸制
• 経験、スキル、業績、貢献度に応じ当社規定により決定
• 毎年1回見直し
• 会社業績および個人貢献度により特別一時金（インセンティブ）を支給（年1回）
• 時間外勤務手当、深夜勤務手当、通勤交通費、ワークスタイル支援金

ベネフィット

• 社会保険（健康保険、厚生年金、雇用保険、労災保険）
• 企業型確定拠出年金制度
• 財産形成貯蓄制度（一般・住宅・年金財形）