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Frontend Engineer

AI Security Engineer (Application Security)

Playtech

Sofiafulltime

Apply on the employer's site

Role description

About Playtech

Founded in 1999, the company has a premium listing on the Main Market of the London Stock Exchange and is focused on regulated and regulating markets across its B2B business. By leveraging its proprietary technology, Playtech delivers innovative products and services to ensure a safe, engaging and entertaining gaming experience.

As the gaming industry's leading technology company, it combines business intelligence-driven software, services, content, and platform technology to drive excellence and innovation across the sector. Read more about who we are and what we do here: www.playtechpeople.com and www.playtech.com

Here at Playtech, we genuinely believe that people are our biggest asset. Diverse thoughts, experiences, and individual characteristics enrich our work environment and lead to better business decisions. Embracing differences and maintaining transparency in our processes is the core of Playtech's overall commitment to responsible business practices.

Ready to level up your career?

Playtech’s
Security unit
is looking for a proactive
AI Security Engineer (Application Security)
with excellent communication and problem-solving skills. You’ll be part of our
Application Security team
, doing the security engineering work the team is known for, with a focus on the AI-powered features and systems we build.

Your influential mission. You will…

• Perform threat modelling and security design reviews for applications, with a focus on AI and LLM-powered features.

• Work closely with security, engineering and data science teams to identify, analyse and mitigate security vulnerabilities.

• Review the security of AI application architecture, including RAG pipelines, agent and tool-calling flows, model APIs and integrations.

• Test AI features adversarially for prompt injection, data leakage, jailbreaks and unsafe output handling.

• Define guardrails, input and output validation, and monitoring for AI systems.

• Help build secure-by-default patterns and guidance so teams can ship AI features safely.

• Support development by using commercial and open source security technologies.

• Track the evolving AI threat landscape and translate it into practical standards for our teams.

Components for success. You…

• Have application security experience (secure code review, threat modelling, vulnerability management).

• Have great written and spoken English.

• Have higher education in the field of IT, or equivalent practical experience

• Understand how LLM and ML systems are built and deployed, and can reason about their failure modes.

• Have experience with at least one programming language (Java, Python, JavaScript, etc.) and scripting ability.

• Have great analytical skills and can find solutions to problems.

• Are positive and proactive, and comfortable working across teams.

You’ll get extra points for…

• Familiarity with AI security frameworks such as the OWASP LLM Top 10, MITRE ATLAS or NIST AI RMF.

• Hands-on experience red-teaming AI models or AI-powered applications.

• Experience with AI security or guardrail tooling.

• Familiarity with security tools like Burp Suite, OWASP ZAP, SAST/DAST tools or other similar.

• Knowledge of secure coding and design practices, and the secure software development lifecycle.

• Understanding of data governance and privacy considerations in training and inference.

Thrive in a culture that values…

• Collaboration and teamwork to share and work together to solve challenges.

• Support continuous development through mentorship, training and hands-on experience.

• Possibility to take ownership to improve security.

• Diverse perspectives and backgrounds.

APPLICATION SECURITY TEAM

Our team helps ensure Playtech’s products are secure by design. We work closely with engineering, product, data science, and security teams across the business to identify risks, improve security practices, and support the delivery of secure solutions. As part of our international Application Security team, you'll collaborate with colleagues across multiple locations and work on a wide range of technologies, products, and security challenges. You'll also have the opportunity to help shape how Playtech secures AI-powered products and services while learning from experienced security professionals.

Playtech is an equal opportunities employer. Our mission is to welcome everyone and create inclusive teams. We celebrate differences and encourage everyone to join us and be themselves at work.

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.

Frontend Engineer

Software Engineer - Agentic Development

FICO

Sofia

Apply on the employer's site

Role description

FICO (NYSE: FICO)
is a leading global analytics software company, helping businesses in 100+ countries make better decisions. Join our world-class team today and fulfill your career potential!

The Opportunity
Come join our product development team to provide thought leadership and innovation. This role provides the opportunity to develop a deep understanding of our business, work closely with customers, sales, professional services, and product management to architect, design and develop a highly feature rich product.

What You’ll Contribute

  • Drive the technical architecture and design of a world-class enterprise level product.
  • Enhance productivity and quality, coach and solve complex problems within technology areas. Involve in setting direction and overall vision for the product development.
  • Develop the product architecture and create software architecture within SDLC process.
  • Provide technical expertise and mentoring to product development team.
  • Work on a wide range of complex projects, assignments and issues, and exert influence in related areas.
  • Evaluate new design specifications and raise quality standards, address architectural concerns.
  • Support sales and professional services teams.
  • Evaluate stability, compatibility, scalability, interoperability, and performance of software product.

What We’re Seeking

  • Bachelor’s/Master’s in Computer Science or related disciplines, or relevant experience in software architecture, design, development and testing.
  • Expert in architecture design with strong foundation of architecture models and data structures.
  • Demonstrated innovation within the software team.
  • Expert on database concepts and programming; quick learning and implementation of new solutions and technologies.
  • Experience in writing product specifications and documenting product features to present them to a wider audience; producing and maintaining demos.
  • Ability to articulate the design with architects and discuss strategy/requirements with teams.
  • Knowledge of best practices for the full software development life cycle, agile methodologies, including coding standards, secure code coding standards, code reviews, source control management, build processes, testing, and operations.

Our Offer to You

  • An inclusive culture strongly reflecting our core values: Act Like an Owner, Delight Our Customers and Earn the Respect of Others.
  • The opportunity to make an impact and develop professionally by leveraging your unique strengths and participating in valuable learning experiences.
  • Highly competitive compensation, benefits and rewards programs that encourage you to bring your best every day and be recognized for doing so.
  • An engaging, people-first work environment offering work/life balance, employee resource groups, and social events to promote interaction and camaraderie.

Why Make a Move to FICO?
At FICO, you can develop your career with a leading organization in one of the fastest-growing fields in technology today – Big Data analytics. You’ll play a part in our commitment to help businesses use data to improve every choice they make, using advances in artificial intelligence, machine learning, optimization, and much more.

FICO makes a real difference in the way businesses operate worldwide:

  • Credit Scoring — FICO® Scores are used by 90 of the top 100 US lenders.
  • Fraud Detection and Security — 4 billion payment cards globally are protected by FICO fraud systems.
  • Lending — 3/4 of US mortgages are approved using the FICO Score.

Global trends toward digital transformation have created tremendous demand for FICO’s solutions, placing us among the world’s top 100 software companies by revenue. We help many of the world’s largest banks, insurers, retailers, telecommunications providers and other firms reach a new level of success. Our success is dependent on really talented people – just like you – who thrive on the collaboration and innovation that’s nurtured by a diverse and inclusive environment. We’ll provide the support you need, while ensuring you have the freedom to develop your skills and grow your career. Join FICO and help change the way business thinks!

Learn more about how you can fulfil your potential at www.fico.com/Careers

FICO promotes a culture of inclusion and seeks to attract a diverse set of candidates for each job opportunity. We are an equal employment opportunity employer and we’re proud to offer employment and advancement opportunities to all candidates without regard to race, color, ancestry, religion, sex, national origin, pregnancy, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. Research has shown that women and candidates from underrepresented communities may not apply for an opportunity if they don’t meet all stated qualifications. While our qualifications are clearly related to role success, each candidate’s profile is unique and strengths in certain skill and/or experience areas can be equally effective. If you believe you have many, but not necessarily all, of the stated qualifications we encourage you to apply.

Information submitted with your application is subject to the FICO Privacy policy at https://www.fico.com/en/privacy\-policy

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.

Frontend Engineer

Software Engineer - Agentic Development

FICO

Sofia

Apply on the employer's site

Role description

FICO (NYSE: FICO)
is a leading global analytics software company, helping businesses in 100+ countries make better decisions. Join our world-class team today and fulfill your career potential!

The Opportunity
Come join our product development team in a hands-on technical role where you’ll be involved in the end-to-end lifecycle of software development and methodologies. This role provides the opportunity to develop a deep understanding of our business, and work closely with professional services and product management to develop a highly feature rich product.

What You’ll Contribute

  • Design, develop, deploy and support modules of large world-class enterprise-level product.
  • Drive technical architecture and design process.
  • Evaluate new design specifications and raise quality standards, address architectural concerns.
  • Work on a wide range of complex projects, assignments and issues.
  • Evaluate stability, compatibility, scalability, interoperability, and performance of the software product.
  • Demonstrate technical expertise through publication, presentations, white papers and event participation.
  • Continually learn new technologies in related areas.
  • Serve as a source of technical expertise and a mentor across development teams.

What We’re Seeking

  • Bachelor’s/Master’s in Computer Science or related disciplines, or relevant experience in software architecture, design, development and testing.
  • Seasoned professional in architecture design with strong foundation of architecture models and data structures.
  • Proficient in database concepts and programming.
  • Experience in writing product specifications and documenting product features to present them to a wider audience.
  • Ability to articulate the design with architects and discuss strategy/requirements with teams.
  • Business domain knowledge.

Our Offer to You

  • An inclusive culture strongly reflecting our core values: Act Like an Owner, Delight Our Customers and Earn the Respect of Others.
  • The opportunity to make an impact and develop professionally by leveraging your unique strengths and participating in valuable learning experiences.
  • Highly competitive compensation, benefits and rewards programs that encourage you to bring your best every day and be recognized for doing so.
  • An engaging, people-first work environment offering work/life balance, employee resource groups, and social events to promote interaction and camaraderie.

Why Make a Move to FICO?
At FICO, you can develop your career with a leading organization in one of the fastest-growing fields in technology today – Big Data analytics. You’ll play a part in our commitment to help businesses use data to improve every choice they make, using advances in artificial intelligence, machine learning, optimization, and much more.

FICO makes a real difference in the way businesses operate worldwide:

  • Credit Scoring — FICO® Scores are used by 90 of the top 100 US lenders.
  • Fraud Detection and Security — 4 billion payment cards globally are protected by FICO fraud systems.
  • Lending — 3/4 of US mortgages are approved using the FICO Score.

Global trends toward digital transformation have created tremendous demand for FICO’s solutions, placing us among the world’s top 100 software companies by revenue. We help many of the world’s largest banks, insurers, retailers, telecommunications providers and other firms reach a new level of success. Our success is dependent on really talented people – just like you – who thrive on the collaboration and innovation that’s nurtured by a diverse and inclusive environment. We’ll provide the support you need, while ensuring you have the freedom to develop your skills and grow your career. Join FICO and help change the way business thinks!

Learn more about how you can fulfil your potential at www.fico.com/Careers

FICO promotes a culture of inclusion and seeks to attract a diverse set of candidates for each job opportunity. We are an equal employment opportunity employer and we’re proud to offer employment and advancement opportunities to all candidates without regard to race, color, ancestry, religion, sex, national origin, pregnancy, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. Research has shown that women and candidates from underrepresented communities may not apply for an opportunity if they don’t meet all stated qualifications. While our qualifications are clearly related to role success, each candidate’s profile is unique and strengths in certain skill and/or experience areas can be equally effective. If you believe you have many, but not necessarily all, of the stated qualifications we encourage you to apply.

Information submitted with your application is subject to the FICO Privacy policy at https://www.fico.com/en/privacy\-policy

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.

Frontend Engineer

React & React Native Developer

Fourth

Sofia

Apply on the employer's site

Role description

Fourth is the world’s largest and fastest-growing global leader of end-to-end restaurant and hospitality management technology solutions. We pride ourselves on delivering a world-class SaaS experience for our clients by building long term partnerships starting from the first phone call. We know our recipe for success at Fourth is our amazing team... and that starts with hiring the right people!

Interested in joining our smart, fun, and talented team?

Join an AI‑first engineering team shaping a next‑generation app for the hospitality industry.
You’ll collaborate closely with Designers and Product partners to deliver an elegant, intelligent solution for restaurants and hotels. If you’re motivated by solving real operational challenges, driving engineering excellence, and building impactful software, this role might be just the right match for you.

Your daily job will include:

  • AI-first code delivery in React
  • Design, develop and unit test solutions of any size or complexity
  • Produce clean code
  • Participate in front end/UI development which follows best industry standards in terms of user experience
  • Diagnose defects, and provide effective solutions
  • Provide development estimates, be a part of planning sessions
  • Understand and support the release management process

What we expect from you:

  • 3+ years of experience in JavaScript
  • Solid knowledge and experience with React and React Native
  • Git (GitHub / Bitbucket / Azure Repos)
  • HTML5 & CSS 3 (SASS / LESS)
  • REST API

Benefits and Culture:

  • 25+ days off, as well as birthday day off and 4 charity days off per year
  • Flexible start and end of the working day and hybrid working mode, including a combination remote and in the office
  • Team-centric atmosphere
  • Encouraging healthy lifestyle and work-life balance including supplemental health insurance
  • New parents bonus scheme
  • Only short-listed candidates will be contacted. All personal data provided by you in your application will be processed by Fourth Bulgaria EOOD, UIC 203576042, solely for our recruitment purposes. If you do not provide your personal data, Fourth Bulgaria EOOD will not be able to review your application. Fourth Bulgaria will transfer your personal data only within its corporate group and to companies which provide recruitment support to Fourth Bulgaria. Fourth Bulgaria will ensure you can exercise your rights to access, correction and erasure of your personal data. More information on Fourth Bulgaria’s privacy policy for job candidates is available here and by applying you confirm that you have read it.

Our Story
In July 2019 Fourth joined forces with HotSchedules to become the global leader in end-to-end restaurant and hospitality management technology solutions. Together, the merged company now represents the world’s largest and only provider of end-to-end restaurant and hospitality management solutions for customers across the globe and of all sizes—from a single location or franchisee restaurant to a global restaurant or hotel chain. The combined company’s complete software-as-service (SaaS) solution suite including scheduling, time & attendance, applicant tracking, training, inventory management / procurement, HR / benefits and payroll services now serves customers in 120,000 locations worldwide and is supported by a dedicated, unified team across offices in the US, UK, Bulgaria, China, Australia, and UAE.

Fourth is an Equal Opportunity Employer
All qualified applicants will receive consideration without discrimination because of sex, gender identity, gender expression, sexual orientation, marital status, race, color, age, national origin, military status, religion, or disability or any 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.

Frontend Engineer

Design Engineer - Maternity Cover

Progress Software

Sofiasenior

Apply on the employer's site

Role description

We are Progress - the trusted provider for software that enables our customers to develop, deploy and manage responsible, AI-powered applications and experiences with agility and ease.

We’re proud to have a diverse global team where we value the individual and enrich our culture by considering varied perspectives because we believe people power progress. Join us as a
Design Engineer
and help us do what we do best: empower developers with beautifully crafted, AI-ready UI component libraries and design system tooling.

Are you passionate about design systems, front-end architecture, and building tools that make developers’ lives easier? Progress is seeking a Design Engineer to join the Kendo UI team as a Maternity Cover. The position is in Sofia, Bulgaria.

Please note that this is a maternity cover position with an approximate duration of 1–1.5 years.
In This Role You Will

  • Own and evolve the Kendo UI Themes framework — a design-token-driven theming layer powering thousands of enterprise applications across the JS ecosystem (jQuery, React, Angular, and Vue) and .NET (Blazor, MVC, Core)
  • Architect and implement SCSS-to-CSS‑custom-property migration paths, enabling runtime theme switching and AI-assisted customization without build steps
  • Develop AI-enabled tooling and agentic workflows — including MCP servers, prompt-to-theme pipelines, and LLM-friendly configuration surfaces — that let customers generate and validate themes programmatically
  • Implement perceptually uniform color generation using OKLCH, with built-in WCAG/APCA contrast validation
  • Contribute to the creation of CLI and programmatic API that produces multi-format output (CSS custom properties, DTCG JSON, SCSS) from a single source of truth
  • Collaborate with product designers and developer advocates to ensure theming APIs are intuitive, well-documented, and aligned with modern CSS capabilities
  • Champion accessibility-first engineering — every generated theme must pass contrast validation before it ships
  • Participate in code reviews, architectural decision records, and cross-team alignment with the broader org

Your Background

  • 3+ years of professional experience as a Design or Front-End Engineer, with deep expertise in React and modern JavaScript/TypeScript
  • Strong command of SCSS/Sass architecture — mixins, functions, module systems, and large-scale variable management across multi-brand theme codebases
  • Hands-on experience building or contributing to design systems, component libraries, or theming frameworks at scale
  • Solid understanding of CSS custom properties, cascade layers (@layer), modern color spaces (OKLCH, Display P3), and the design tokens ecosystem (DTCG specification is a plus)
  • Experience with front-end architecture patterns: monorepo tooling (npm workspaces, Nx), build pipelines (tsup, Vite, Rollup), and CI/CD for library publishing
  • Familiarity with AI-enabled developer tools and agentic workflows — MCP servers, LLM integration patterns, prompt engineering, or building AI-powered features into developer products
  • Understanding of accessibility standards (WCAG 2.1 AA/AAA, APCA) and how they apply to color contrast, typography, and component design
  • Experience with Node.js backend tooling — CLI frameworks, file system operations, JSON schema validation
  • Excellent communication skills in English; comfortable with asynchronous collaboration across distributed teams
  • A genuine interest in developer experience, color science, and the intersection of design and engineering

If this sounds like you and fits your experience and career goals, we’d be happy to chat.
Compensation
What we offer in return is the opportunity to experience a great company culture with wonderful colleagues to learn from and collaborate with and also to enjoy:

  • Generous remuneration package.
  • Employee Stock Purchase Plan Enrollment.

Vacation, Family, and Health

  • 30 days paid annual vacation.
  • An extra day off for your birthday.
  • 2 additional days off for volunteering.
  • Premium healthcare and dental care coverage.
  • Additional pension insurance.
  • Well-equipped gym on-site with Cross-Fit equipment and climbing wall.
  • Co-funded Multisport card.
  • Flexible working hours.
  • Free underground parking with a designated space for bikes, motorbikes and electric scooters.

Apply now!

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.

73 more openings in this category and country

AI Security Engineer (Application Security)Playtech · Bulgaria

Apply on the employer's site