Senior JavaScript Developer

2 tygodni temu

Warszawa, Mazovia, Polska Sigma Software Pełny etat
Sigma Software Sigma Software is multinational IT company that provides the custom software development solutions. Become one of us

View company page

We are working with a highly dynamic AdTech ecosystem with the goal of protecting the world from malvertising.

Being our team member means being open-minded, proactive and friendly, supportive, ready to accept challenges, take responsibility, and never stop learning. We need to be one step ahead of attackers, which means being smarter, quicker, and looking beyond the surface.

We'd like to hear from you

CUSTOMER
Our customer is a leader in the development of the most comprehensive end-to-end anti-fraud protections. They are working on two innovative start-up solutions with the goal of protecting clients' user experience, revenue, and brand.

The first product succeeded in AdTech, protecting the world from malvertising. The second product allows E-commerce merchants to protect their margins by mitigating the negative effects of extensions like Honey, Wikibuy, Piggy, and more.

PROJECT
The project develops a cybersecurity solution protecting revenue and user experiences across all platforms.

Job Description
  • Actively participate in the design/build stage of the software engineering life cycle (requirements gathering, prototyping, architecture, detailed design, development, testing, and deployment)
  • Be involved in planning, designing, and executing Agile delivery methodologies
  • Create awesome code with awesome documentation
  • Utilize the best engineering practices (unit tests, code/design review, etc.)
  • Stand up for high-quality solutions and bring new ideas to life
  • Take part in technical discussions, listen to arguments, and apply critical thinking
Qualifications
  • At least 5 years of hands-on software development experience in web/cloud technologies
  • 1+ years of experience with any web driver-based technology (e.g., Selenium, Puppeteer, etc.)
  • Solid experience building CI/CD pipelines on GitHub, GitLab, and/or Bitbucket
  • Solid knowledge of fundamental web technologies, including DOM API, DOM Event Model, XmlHttpRequest (HTTP/HTTPS), simple data structures (Map, Set, List, Queue), and design patterns
  • Commercial experience working with both SQL and NoSQL databases
  • Strong understanding of code versioning tools, such as Git
  • Upper-intermediate level of spoken English

WOULD BE A PLUS

  • Experience with obfuscation and deobfuscation techniques
  • Good understanding of code transformation tools and/or bundlers
  • Bulletproof coding skills, focusing on "can" and "cannot" rather than "should" and "should not"
  • Proficient understanding of the ad tech ecosystem and/or previous ad tech experience
Additional Information

PERSONAL PROFILE

  • Self-driven and motivated
  • A visionary thinker with an eye for quality solutions
  • Ability to work independently
  • Passionate about leveraging technology to solve complex problems
Explore more InfoSec / Cybersecurity career opportunities

Find even more open roles in Ethical Hacking, Pen Testing, Security Engineering, Threat Research, Vulnerability Management, Cryptography, Digital Forensics and Cyber Security in general - ordered by popularity of job title or skills, toolset and products used - below.

#J-18808-Ljbffr

  • Middle/Senior JavaScript Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska Sigma Software Pełny etat

    Job DescriptionCreate and maintain JavaScript SDKs for the accessibility testing engine, supporting frameworks like Cypress and Playwright.Extend functionality of existing frameworks to enhance testing capabilities and ensure a seamless developer experience.Collaborate with the team to harmonize SDK frameworks, ensuring consistency and maintainability across...

  • / Javascript Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska HAYS POLAND Sp. z o.o. Pełny etat

    / Javascript Developer - advancedlokalizacja: Warszawa (mazowieckie)numer referencyjny: Hays IT Contracting to współpraca oparta na zasadach B2B. Nasza firma dopasowuje specjalistów IT do najciekawszych projektów technologicznych na rynku.Dołącz do grona 500 zadowolonych Kontraktorów i pracuj dla Klientów HaysObecnie dla naszego Klienta poszukujemy...

  • Senior JavaScript Developer Cybersecurity Solution @

    2 tygodni temu

    Warszawa, Mazovia, Polska Sigma Software Pełny etat

    We are working with a highly dynamic AdTech ecosystem with the goal of protecting the world from malvertising.Being our team member means being open-minded, proactive and friendly, supportive, ready to accept challenges, take responsibility, and never stop learning. We need to be one step ahead of attackers, which means being smarter, quicker, and looking...

  • Senior React Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska HOVER SENIOR LIVING COMMUNITY Pełny etat

    Overview:SOFTSWISS continues to expand the team and is looking for a Senior Frontend Developer(React).We need a true, experienced and accomplished professional who shares our culture and values.About Product:SOFTSWISS Casino PlatformFull-service modular software platform to manage online casino operationsLearn MoreKey responsibilities:Work in a fully agile...

  • Senior Fullstack Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska HOVER SENIOR LIVING COMMUNITY Pełny etat

    *instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements. Our team is looking for a Senior Fullstack Developerwith Backend Focus for one of our clients.The...

  • Senior Python Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska HOVER SENIOR LIVING COMMUNITY Pełny etat

    *instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.*instinctools is looking for a Senior Python Developer for one of our clients. Our Client is one of...

  • Mid/Senior Frontend developer @

    2 tygodni temu

    Warszawa, Mazovia, Polska Dynamic Solutions Pełny etat

    Mid/Senior Frontend developer @ Dynamic Solutions Warsaw, Masovian Voivodeship Mid/Senior Frontend developer @ Dynamic Solutions Warszawa Warsaw, Masovian Voivodeship, Polska We're not your typical team; we're a close-knit IT community with creative minds, brewing fantastic ideas during our daily office coffee sessions. Interested in joining the vibe?...

  • Senior Frontend Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska EAGERDEVS Pełny etat

    Poszukujemy wykwalifikowanego Senior Frontend Developera, który dołączy do zespołu naszego klienta. Jako developer będziesz kluczową osobą w rozwoju internetowego frontendu - Rozwiązania Zarządzania Zasobami LudzkimiForma zatrudnienia: Kontrakt B2BStart: ASAPBudżet: PLN/mc Obowiązki: Opracowanie oraz ewentualnie projektowanie części frontendu...

  • Senior Frontend Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska EAGERDEVS Pełny etat

    Poszukujemy wykwalifikowanego Senior Frontend Developera, który dołączy do zespołu naszego klienta. Jako developer będziesz kluczową osobą w rozwoju internetowego frontendu - Rozwiązania Zarządzania Zasobami LudzkimiForma zatrudnienia: Kontrakt B2BStart: ASAPBudżet: PLN/mcObowiązki:Opracowanie oraz ewentualnie projektowanie części frontendu...

  • Senior Frontend Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska EAGERDEVS Pełny etat

    Poszukujemy wykwalifikowanego Senior Frontend Developera, który dołączy do zespołu naszego klienta. Jako developer będziesz kluczową osobą w rozwoju internetowego frontendu - Rozwiązania Zarządzania Zasobami LudzkimiForma zatrudnienia: Kontrakt B2BStart: ASAPBudżet: PLN/mc Obowiązki: Opracowanie oraz ewentualnie projektowanie części frontendu...

  • Senior MS Developer 365

    2 tygodni temu

    Warszawa, Mazovia, Polska L.M. Group Poland Pełny etat

    Senior MS Developer 365 (CRM) Senior MS Developer 365 (CRM) Warszawa Warszawa, mazowieckie, Polska Opis stanowiska pracySenior MS Developer 365 (CRM)We are an international recruitment agency founded in 1987, present in Poland since 2014. We specialize in recruiting for permanent and temporary positions. Our headquarters are located in Poznań, and we also...

  • Senior PHP Developer + Hirgin now

    2 tygodni temu

    Warszawa, Mazovia, Polska OnHires Pełny etat

    Senior PHP Developer - Join the team now in the industrySummary:OnHires is looking for a skilled Senior PHP Developer to be part of our dynamic team. If you love coding and have a solid background in PHP development, we're interested in youResponsibilities:Design, create, and maintain web applications using PHPCollaborate with diverse teams to define,...

  • Senior PHP Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska Recooty Pełny etat

    Summary: OnHires is seeking a talented Senior PHP Developer to join our dynamic team. The ideal candidate will be responsible for developing and maintaining high-quality web applications using PHP. If you have a passion for coding and a strong background in PHP development, we want to hear from you Responsibilities:Design, develop, and maintain web...

  • Senior Java Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska DEVTALENTS Sp. z o.o. Pełny etat

    About us:We are looking for a Senior Java Developer to be a part of DEVTALENTS team and contribute to development of truly amazing solution for businesses all over the world.Joining DEVTALENTS can be a life-changing decision for you, with endless benefits along the way. We provide top projects for which recruitment is not possible externally because of our...

  • JavaScript Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska DataArt Pełny etat

    Requirements Angular/ proficiency with Flux/Redux Strong HTML/CSS skills, including preprocessors Responsive design and UI/UX knowledge Modern JavaScript (ES6+), async programming Experience with Typescript Understanding of RESTful APIs, async handling Redux or similar state management Familiarity with Webpack/Babel with RESTful APIs,...

  • Senior MS Developer 365

    2 tygodni temu

    Warszawa, Mazovia, Polska L.M. Group Poland Pełny etat

    Senior MS Developer 365 (CRM) We are an international recruitment agency founded in 1987, present in Poland since 2014. We specialize in recruiting for permanent and temporary positions. Our headquarters are located in Poznań, and we also have branches in Warsaw, Gdańsk, and Wrocław.Currently, we are looking for Senior MS Dynamics Developer (CRM) for one...

  • Senior Full Stack Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska ITIS Sp. z o.o. Pełny etat

    Senior Full Stack DeveloperTwój zakres obowiązkówPraca w międzynarodowych projektach klasy Enterprise Realizacja ambitnych rozwiązań przy użyciu Visual Studio, .NET, Git Tworzenie responsywnych aplikacji internetowych Nasze wymaganiaMinimum cztery lata doświadczenia na podobnym stanowisku Wykształcenie wyższe techniczne Znajomość C# i platformy...

  • JavaScript Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska Sigma Software Pełny etat

    Job DescriptionOptimize and maintain various solutions within our mitigation bot product Write unit tests and create debugging builds to ensure product stability Configure and enhance Continuous Integration (CI) pipelines Document processes and solutions to ensure clarity and consistency Optimize test solutions, workers, and payload testing to improve...

  • IT Developer Senior

    2 tygodni temu

    Warszawa, Mazovia, Polska HAYS POLAND Sp. z o.o. Pełny etat

    IT Developer Senior (Node.JS)lokalizacja: Warszawa (mazowieckie)numer referencyjny: Hays IT Contracting to współpraca oparta na zasadach B2B. Nasza firma dopasowuje specjalistów IT do najciekawszych projektów technologicznych na rynku. Dołącz do grona 500 zadowolonych Kontraktorów i pracuj dla Klientów HaysObecnie dla naszego Klienta poszukujemy...

  • Senior Fullstack Developer

    2 tygodni temu

    Warszawa, Mazovia, Polska in4ge Pełny etat

    Dla naszego Klienta poszukujemy doświadczonego Senior Fullstack Developera (.NET), który będzie również pełnił rolę Tech Leadera. Osoba na tym stanowisku będzie odpowiedzialna za rozwój i utrzymanie aplikacji oraz kierowanie zespołem programistycznym. Szukamy osoby, która jest pasjonatem technologii, posiada solidne doświadczenie w pracy z .NET...