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Backend Engineer

Software Engineer, iOS Core Product - Buenos Aires, Argentina

Speechify

B

Apply on the employer's site

Role description

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 App of the Day.

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

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, 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 Yo****u'**ll Do

  • Opportunity to lead key engineering and product decisions
  • Actively shipping production code for the Speechify iOS app
  • Work within a dedicated product team
  • Participate in product discussions to shape the product roadmap
  • Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

  • Experience. You've worked on products that scaled to a large user base
  • Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
  • Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
  • Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
  • Speed. You work quickly to generate ideas 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
  • Technical skills. Swift, SwiftUI

Technical Requirements:

  • Swift Programming Language
  • SwiftUI experience
  • Experience in Multithreading Programming
  • Working with CI/CD infrastructure
  • Experience with Fastlane
  • SOLID principles, the ability to write every single class according to SOLID
  • Experience with Git and understanding of different Git strategies

What We offer:

  • A fast-growing environment where you can help shape the company and product
  • An entrepreneurial crew that supports risk, intuition, and hustle
  • The opportunity to make a big impact in a transformative industry
  • A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
  • Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
  • Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
  • Work in one of the fastest growing sectors of tech: 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.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Full-stack (TypeScript,React) developer (Europe, remote)

TechMagic

Remotefulltime

Apply on the employer's site

Role description

We're looking for an exceptional software engineer with a passion for building great products. You'll get exposure to our full platform stack — web, native, and backend — building solutions our users and customers rely on every day.

This role is focused on our Chat, Assistant, and Intelligence products. You'll work on tools that help prospective students engage with universities and make informed decisions, and that help university staff and ambassadors have meaningful conversations backed by valuable data. You'll work with a modern tech stack and AI systems to bring powerful features to our customers and users.

We build products that can be used by anyone, so experience with WCAG-accessible UI is a plus.

What We're Looking For

  • Proficient in TypeScript; Python is a bonus
  • Solid experience building well-architected, reusable React components — component lifecycle, performance, and state management — or confidence building scalable backend services and managing AWS infrastructure
  • Experience building applications powered by GraphQL APIs
  • Experience in a microservice-driven environment
  • Comfortable writing robust test suites
  • AI adopter — comfortable with parallel pipelines and agentic tooling, and understands that good agents come from systems-thinking, testing, and validation, not just code generation
  • Experience building performant microservices with frameworks like Express or NestJS
  • Familiarity with MongoDB or another NoSQL database, including common design patterns and trade-offs
  • English level - at least Upper-intermediate and higher

About You

  • Product-minded and user-obsessed
  • Takes real ownership of a product - upkeep, performance, and bug resolution included
  • Curious, eager to learn, and open to continuous growth
  • A team player who enjoys teaching and learning from others
  • Uses AI tooling to work faster and automate where it makes sense

Nice to have

  • Experience meeting WCAG accessibility standards
  • React Native experience
  • Event-driven systems (Kafka, Kinesis, RabbitMQ)
  • Serverless architecture
  • Python with Flask or Django

Benefits

  • Highly flexible work culture
  • Fully remote - work from anywhere
  • Medical insurance
  • 25 days paid annual leave, an extra day off for personal milestones (birthday, engagement, wedding), tenure-based additional days, and 4 extra days for a company-wide year-end shutdown
  • Enhanced parental leave (maternity, paternity, adoption)
  • A MacBook and everything you need to do your best work

About Us
We're a London-based EdTech company reimagining how universities recruit students. Our platform connects prospective students directly with university ambassadors, helping institutions boost yield and conversion. Over 3 million students have used our platform, which is live at 500+ universities worldwide - including Cambridge, NYU, Imperial College London, and Arizona State University.

Our stack: NestJS, TypeScript, Python, GraphQL, MongoDB, AWS

Recruiter - Oksana Bedrii

  • Some elements of our recruitment process are supported by AI tools, while all candidate evaluations remain the responsibility of our recruitment team

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Mobile Backend Software Engineer

MOL Group

Remotefulltimesenior

Apply on the employer's site

Role description

Job post

About Digital Factory
It’s a place where the agility of a start-up meets the stability of a global powerhouse!

Be part of our journey as we transform
MOL Group’s Consumer Services
from a traditional fuel retailer to a cutting-edge, digitally driven consumer goods and mobility services provider. As part of MOL Group’s 2030 - Enter Tomorrow strategy, our mission is to lead the market in Central Europe through innovative digital transformation.

At Digital Factory, we harness the power of data to drive business decisions by building a comprehensive Data Lake and developing advanced analytics solutions in forecasting, category management, pricing, and workforce optimization. We're also revolutionizing customer experience with
MOL MOVE
, our new digital, app-first loyalty rewards program on the Salesforce platform , designed to personalize and enhance convenience for our customers.

MOL Group Consumer Services are currently serving approx. 10 million customers through 2,000 service stations across 9 countries, which provides an excellent scale to leverage our technologies regionally.

Our engineers are impact-driven backend and full-stack innovators with a passion for business, user behavior, and data. They excel in communication, build strong relationships with non-engineers, and navigate product/engineering tradeoffs with ease. With a focus on end-to-end ownership of non-trivial features, scalable system design, and continuous improvement, they drive high-quality, reliable, and secure solutions.

As a Mobile Backend Software Engineer within the Digital Factory, you will play a key role in designing, building, and evolving backend services and APIs that power mobile applications, while contributing to integration with enterprise platforms and cloud services. Working as part of a cross-functional engineering team, you will actively contribute to technical decisions, backend architecture, and coding standards, while collaborating closely with product, mobile, and other backend teams.

If you're proactive, solution-oriented, and eager to grow your technical expertise while making a tangible impact, the Digital Factory's Engineering Team is the place for you!

About The Role
We are looking to hire an experienced and passionate Mobile Backend Software Engineer to join Digital Factory. The new team member will be part of a dynamic development team, working primarily with Java and Spring Boot to design and implement backend services that support mobile applications. The role also includes creating and maintaining RESTful APIs, ensuring efficient, secure, and reliable data flows and integrations with upstream systems (e.g. microservices, Salesforce, Azure services).

The role involves owning features end-to-end, making sound design decisions, and balancing product and engineering trade-offs. This role is ideal for someone with a positive attitude, strong problem-solving skills, and a willingness to learn. The engineer should be able to work independently, write well-structured and maintainable code, and actively contribute to improving backend architecture and practices.

Main Responsibilities

  • Develop, design and maintain backend services for mobile applications using Java and Spring Boot.
  • Implement and evolve RESTful APIs ensuring scalability, reliability, and security.
  • Own non-trivial features end-to-end, including design, development, testing, and deployment.
  • Integrate backend services with upstream systems (microservices, Mule, Salesforce, Azure services) across multiple environments and regions.
  • Collaborate with mobile developers, backend engineers, and product teams to ensure seamless integration.
  • Write clean, testable, well-structured, and maintainable code following best practices.
  • Drive and participate in code reviews, providing constructive feedback and maintaining high coding standards.
  • Troubleshoot and debug issues in backend services and API interactions.
  • Contribute to technical design discussions, architecture decisions, and backend standards.
  • Mentor and support junior engineers through knowledge sharing and code reviews.
  • Stay updated with industry trends and best practices, particularly in mobile backend technologies.
  • Proactively identify improvements to backend performance, reliability, and developer experience.
  • Provide clear communication on progress, challenges, and ideas for improving backend performance and reliability.

About Your Experience And Skills
Education

  • University or college degree with specialization in Computer Science or Information Systems or equivalent.

Experience

  • 3–6 years of professional experience in software development, with strong focus on Java backend development.
  • Hands-on experience with RESTful API implementation and backend system integration.
  • Experience with mobile backend systems is a strong plus.

Professional and Technical Competencies

  • Solid, hands-on knowledge of Java and strong experience with Spring Boot.
  • Understanding of RESTful API design principles and hands-on experience in building APIs.
  • Experience with Git (branching strategies, pull requests, and code review practices).
  • Working knowledge of relational databases and SQL; NoSQL (e.g. MongoDB, Redis, Cosmos DB) is a plus.
  • Understanding of system integration and working with upstream/third-party services.
  • Familiarity with cloud platforms (preferably Azure) and CI/CD pipelines.
  • Strong understanding of authentication and authorization (JWT, OAuth2, OpenID Connect, Azure Entra ID).
  • Experience with GraphQL is a plus.
  • Experience with Atlassian JIRA and Confluence.

Soft Skills

  • Proactive mindset with a positive attitude and a strong sense of ownership, and team mentality.
  • Strong attention to detail and commitment to delivering high-quality work, and security in development.
  • Strong analytical and problem-solving skills with a focus on customer-centric solutions.
  • Strong written and verbal communication skills in English for cross-functional collaboration.
  • Willingness and ability to mentor junior colleagues.
  • Growth mindset with a passion for continuous learning, adapting, and staying updated on industry trends and best practices.
  • Openness to work with different cultures across CEE.

What We Offer

  • Work with an advanced and innovative tech stack.
  • Collaborate with multinational teams and projects across the CEE region.
  • Enjoy tremendous opportunities for continuous learning and growth in a fast-paced, agile environment.
  • Explore versatile career paths in a dynamically growing international organization at Local and Group level.
  • Gain cross-industry experience through our expanding portfolio of businesses (both within and beyond MOL Group).
  • Be part of a supportive and inclusive workplace that values innovation and creativity.
  • Enjoy a hybrid work model- two days of home office and three days at the beautiful MOL Campus.
  • Access Medicover health insurance and an extensive benefit package, including an annual bonus and maximalized fringe benefits.
  • Participate in regular team outings and MOL family events.

How to apply?
If you wish to form the future with us, please submit your applications via our career site- www.mol.hu/karrier

Main Recruitment Steps

  • Initial call- You will be contacted by MOL Recruitment via phone for a short chat.
  • Interview- You can expect three interview rounds, where you can meet your direct manager, some experts from the team, ask your questions and present your skills and career path. We always make sure you receive timely feedback after each round.
  • Technical Assessment- You will either receive a take-home assignment after the first interview or be asked to solve an exercise on the spot at one of the interviews.

If you would like to know more about Digital Factory-
digitalfactory.info
Meet your Hiring Manager
- András Pfeiffer ( András PFEIFFER | LinkedIn )

At MOL Group, we know that our strength lies in diversity. During the selection process, we provide equal opportunities to all applicants with the appropriate qualifications and work experience, regardless of age, gender, disability, or reduced work capacity, sexual orientation, or ethnicity. At MOL Group, everyone matters.
If you have any specific needs related to your reduced work capacity at any stage of the recruitment process, please inform our recruitment team! We are happy to assist.
Employee Status
Regular- Indefinite

Job Level
Individual Contributor

Location
Hungary-Budapest-Dombóvári út 28.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Software Engineer

OWKIN

Remotefulltime

Apply on the employer's site

Role description

About Us
Owkin is an agentic AI company pioneering Biological Artificial Superintelligence to solve problems in biology where human researchers alone have failed.

Owkin builds K Pro - an AI scientist for pharmaceutical research and strategic decision-making. K Pro orchestrates a suite of AI skills and tools to decode complex biology, accelerate research, and dramatically increase productivity.

K Pro is built on Owkin’s unrivalled multimodal patient data network, state-of-the-art AI for biology and a decade of experience working with pharmaceutical partners.

Position is based in our Paris office or remotely in France, UK, Germany.
Please submit your CV in English
About The Role
As a Software Engineer, you will build the world leading Agentic AI product for biomedical researchers by combining robust engineering practices with cutting-edge AI technologies. You'll be working on a real-time system that integrates LLMs, tool-calling, and interactive UI elements, making sure our users can seamlessly engage with complex domain specific data.

This role requires balancing traditional engineering principles with innovative approaches when integrating LLMs and AI throughout our technology stack. If you love building and refining a dynamic product, this role is for you.

Your seniority and experience will be crucial in guiding the multidisciplinary team to make strategic decisions and empowering team members.

This job offer covers for multiple positions at different levels of seniority (Intermediate & Senior).
In Particular, You Will

  • Collaborate within a multi-disciplinary team of product managers, designers, software engineers, machine learning and biomedical scientists.
  • Design, build, and maintain scalable, reliable AI systems.
  • Drive technical decisions and provide context-aware solutions for AI systems in biological research.
  • Leverage and pioneer evaluation methodologies to ensure continuous product improvement.
  • Experiment with cutting-edge industry solutions—orchestration patterns, fine-tuning, specialized monitoring, feedback loops, etc.
  • Lead core stack component development focusing on sustainability, scalability, security, reliability, and performance.
  • Foster team growth by sharing expertise and mentoring colleagues through code reviews, technical discussions, and knowledge sharing.
  • Participate in a team wise shared on-call rotation.

Example Of Scope

  • Lead Agent Development: Drive the development of Owkin agents and actively contribute to the core components of our platform, "K-Pro."
  • Optimize Analytical Workflows to feed the agents with the data they need when they need it — e.g. analytical DBs (DuckDB), distributed computing (AWS Athena, Trino, etc), integration with data platforms (Snowflake, Databricks, etc).
  • Deployment and Integration: Manage the seamless integration and deployment of agents within Owkin's broader Data Platform infrastructure.

About You
Required qualifications / experience:

  • You’re driven by impact — excited to empower biomedical researchers with intuitive, AI-driven tools that unlock scientific discovery.
  • Strong collaborative skills with an open, pragmatic mindset; you thrive in multidisciplinary environments that involve people with diverse backgrounds.
  • Clear and effective communicator who can translate technical complexity into actionable decisions for the team.
  • Deep understanding of system architecture, infrastructure design, and building resilient distributed systems - including complex analytical workflows.
  • Extensive experience with production environments: continuous deployment, high availability, observability, and security.
  • Curiosity and ideally hands-on experience with AI systems — from integrating LLMs to evaluating their performance in real-world workflows.
  • Passion for user experience and product thinking: you consider not only the system’s internals but how the end user interacts with and benefits from your work.
  • Proficiency with Claude Code and other AI software engineering tools
  • Fluent English, both written and spoken.
  • Stack: Python, Kubernetes, AWS

Preferred Qualifications/bonus

  • Experience working with spatial transcriptomics data.
  • Knowledge of different technologies for distributed computing, databases, and serialization.
  • Front-end development experience (although the position is mostly back-end oriented)
  • Direct experience with data orchestration tools such as Apache Airflow.

What we offer

  • Flexible work organization
  • Friendly and informal working environment
  • Opportunity to work with an international team with high technical and scientific backgrounds

Recruitment Process & Security

  • Please complete the form and submit your CV.
  • Owkin is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, sex, gender, sexual orientation, age, color, religion, national origin, protected veteran status or on the basis of disability.
  • Owkin is a great place to work. As a coveted workplace we are, unfortunately, vulnerable to recruitment phishing scams. We urge all job seekers and candidates to be wary of potential scams. Most of these have individuals posing as representatives of prominent companies, including Owkin, with the aim of obtaining personal, sensitive, or financial information from applicants. These scams prey upon an individual’s desire to obtain a job and can sometimes “feel” like a genuine recruitment process. Some red flags are identified below. Should you encounter a recruitment process that claims to be for Owkin but is not consistent with the below, please do not provide any personal or financial information:
  • Legitimate Owkin recruitment processes include communication with candidates through recognized professional networks, such as LinkedIn.
  • Communication is always through an official Owkin email address (from the @owkin.com domain), over the phone or through our applicant tracking system (Greenhouse).
  • The Owkin talent team do use platforms such as LinkedIn and Job Teaser, however if you have any concern or doubt about this contact, please ask for them to send an email from @Owkin.com.
  • The Owkin talent team will not solicit personal data from candidates during the application phase including, but not limited to, date of birth, social security numbers, or bank account information;
  • Legitimate Owkin interviews may be conducted over the phone, in person, or via an approved enterprise videoconferencing service (Google Meets). They will not occur via Signal, Telegram or Messenger
  • Owkin offers of employment are based on merit and only extended once a candidate has interviewed with members of the talent and hiring team. Offers will be extended both verbally and in written format.

If you think that you have been a victim of fraud,

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Full-Stack Developer | React/Nextjs, Tailwind, PostgreSQL/Supabase! (all genders)

ECENT

Remotefulltime

Apply on the employer's site

Role description

  • Sei dabei, ERADIANT von 75k ARR auf 300k ARR zu bringen und baue eine Architektur, die mit unseren Kunden mitwächst

  • Komplexe Systeme vereinen: Entwickle Features, die so intuitiv sind, dass unsere Nutzer keine anderen Tools mehr brauchen – egal ob es um Echtzeit-Synchronisation von Eventprogrammen, White-Label-Integrationen oder komplexe Datenstrukturen im CRM geht

  • KI-Integration: Integriere moderne KI-Funktionen und Automatisierungen in unsere React/Next.js und Supabase-Umgebung, um Eventmanagern die Arbeit zu erleichtern.

  • Sicherheit auf höchstem Niveau: Gewährleiste, dass unsere Plattform (Hosted in Germany) hohe Datensicherheit und DSGVO-Konformität bietet

Aufgaben

  • Konzeption, Entwicklung und Optimierung neuer Features im Front- und Backend, inklusive der Integration von AI-Funktionen und Automatisierung

  • Mitgestaltung technischer Entscheidungen und aktives Einbringen eigener Ideen zur Weiterentwicklung unserer Plattform

  • Sicherstellung von Code-Qualität und Performance durch Testing und Reviews

  • Umsetzung von einer verbesserten UI / UX sowie weiterer Design-Templates

Qualifikation

✔ Fundierte Kenntnisse in mehreren Bereichen unseres oder eines vergleichbaren Tech-Stacks (TypeScript, React/Next.js, Tailwind, (Postgre)SQL, Supabase)

✔ Erfahrung im modernen Webdesign und ein gutes Gespür für ansprechende, benutzerfreundliche Oberflächen (UI/UX)

✔ Strukturierte, selbstständige und lösungsorientierte Arbeitsweise – du bringst deine Ideen gerne proaktiv ein

✔ Zuverlässigkeit und Eigeninitiative

✔ Erfahrung mit Konzeption von Datenstrukturen

✔ Erfahrung mit Deployment von Webanwendungen (Docker, Traefik) sowie sicherer Umgang mit Linux-Servern

✔ Idealerweise Erfahrung im Bereich Testing und Code-Qualität

✔ Erste Erfahrungen im Bereich Serveradministration

✔ Sprachkenntnisse: Deutsch C1 sowie Englisch B1

✔ Regelmäßiges Arbeiten im Büro erforderlich (2-3 mal pro Woche)

Benefits

  • Modernes MacBook als Arbeitsgerät

  • Eine abwechslungsreiche Rolle mit viel Lernkurve

  • Flexible Arbeitszeiten

  • Teilweise remote arbeiten möglich

  • Arbeiten in einem Start-up mit Fokus auf Nachhaltigkeit und Innovation

  • Ein dynamisches Team, regelmäßige Co-Workings und viel Teamgeist

  • Kurze Entscheidungswege und viel Eigenverantwortung

  • Regelmäßige Team-Events

  • Wellpass oder Givve-Card (50 Euro)

ECENT ist eine junge und dynamische Eventagentur, die sich auf innovative und nachhaltige Veranstaltungen spezialisiert hat. Unser Gründungsteam steckt voller Ideen und Energie, um unvergessliche und gleichzeitig nachhaltige Events zu schaffen! Wir arbeiten flexibel, aber persönlich: Für diese Rolle ist es uns wichtig, dass du regelmäßig in unser Büro in der Maxvorstadt kommen kannst (Remote Work ist teilweise natürlich möglich).

Eventmanagement bedeutet heute oft Chaos: Ein Tool fürs Ticketing, eins für E-Mails, eins für Umfragen, eins für die Website. Wir ändern das. Unsere Vision mit ERADIANT:
Ein einziges Tool für alle Prozesse im Eventmanagement.

Deshalb bauen wir die All-in-One SaaS-Plattform, die alles vereint – von interaktiven Live-Programmen und Matchmaking-Funktionen fürs Networking über integriertes Ticketing bis hin zu massentauglichen Mailing-Kampagnen und einem vollumfänglichen CRM. Dafür brauchen wir dich!

Interessiert?

Dann freuen wir uns auf deine Bewerbung! Bitte sende deinen Lebenslauf mit kurzem Anschreiben per E-Mail an
kontakt@ecent[dot]eu
(Kilian & Tanina).

Unser Versprechen: Du bekommst innerhalb von 2 Tagen eine Antwort.

👉 Werde Teil unseres Teams und gestalte ERADIANT mit! 😊

Wir freuen uns darauf, dich kennenzulernen!

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

831 more openings in this category and country

Software Engineer, iOS Core Product - Buenos Aires, ArgentinaSpeechify

Apply on the employer's site