Jobs at Djinni

About Us

We’re building a mental wellness app designed to deliver personalised, accessible, and impactful support to users worldwide. Our mobile app is already live and growing fast, and we’re now looking for a talented Backend Developer to join our team and help take the product to the next level.

The Role

You'll own and evolve the server-side logic that powers our apps — designing and shipping APIs consumed by mobile and web clients, strengthening our microservices ecosystem, and helping us scale reliably and securely. You'll work closely with frontend and mobile engineers, DevOps, and product.

Key Responsibilities
 API & Auth
 

• Design and maintain RESTful APIs for iOS, Android, and web
• Build high-throughput async endpoints
• Implement JWT auth flows and OAuth 2.0 social login (Apple, Google)

Microservices & Architecture
 

• Develop and maintain core services: User, Content, Tracking, Analytics, Notification
• Design stateless, fault-tolerant services for horizontal scaling
• Contribute to Golang services for high-concurrency analytics and notification dispatch

Database & Caching
 

• Write optimized PostgreSQL queries; design schema migrations indexes
• Implement time-based table partitioning for analytics and journal data
• Configure PgBouncer pooling, read/write splitting, and materialized views
• Build and invalidate multi-layer Redis caches (sessions, content metadata, preferences)

Integrations
 

• Apple HealthKit (sleep, HRV, mindful minutes, activity sync)
• In-app purchases: App Store API and Google Play Billing verification
• Push notifications via Firebase Cloud Messaging (iOS & Android)
• Stripe for web subscription payments; Amazon Polly for TTS in meditations

Security & GDPR
 

• GDPR features: data export (JSON), 30-day automated deletion, consent management
• AES-256-GCM encryption for sensitive mental health data fields
• Enforce TLS 1.3, HSTS, Perfect Forward Secrecy; contribute to RBAC and audit logging

DevOps & Quality
 • Maintain Dockerfiles and multi-stage build configs; participate in GitLab CI/CD pipeline
 • Support blue-green deployments and canary rollouts (10% traffic routing)
 • Write unit, integration, and contract tests using pytest

Requirements
Must Have
 • 5+ years backend development in Python
 • Confident working with the Flask and FastAPI frameworks.
 • Experience with Golang, JavaScript, and HTML.
 • VPS management skills on AWS: initial setup, application deployment, performance optimization, updates, security, and monitoring.
 • Experience working with Elasticsearch.
 • Strong PostgreSQL skills: schema design, query optimization, indexing, migrations
 • Redis for caching, session management, and rate limiting
 • JWT authentication, OAuth 2.0, and security best practices
 • Experience with pytest and contributing to CI/CD pipelines
 • Comfortable working in a Docker-based microservices environment
 • Knowledge of GDPR requirements and privacy-by-design practices
 • Proficiency with Git and collaborative workflows (GitFlow)

AI & Automation

• Strong understanding of AI-powered development workflows and modern AI tools
• Experience using AI-assisted coding tools such as ChatGPT, Claude, GitHub Copilot, Cursor, and Lovable
• Ability to leverage AI tools to improve development speed, debugging, documentation, testing, and code quality
• Understanding of AI integrations, LLM APIs, prompt engineering, and AI-assisted automation workflows
• Experience working with AI-generated code while maintaining high standards for security, scalability, and maintainability

About Us

We’re building a mental wellness app designed to deliver personalised, accessible, and impactful support to users worldwide. Our mobile app is already live and growing fast, and we’re now looking for a talented Backend Developer to join our team and help take the product to the next level.

The Role

You'll own and evolve the server-side logic that powers our apps — designing and shipping APIs consumed by mobile and web clients, strengthening our microservices ecosystem, and helping us scale reliably and securely. You'll work closely with frontend and mobile engineers, DevOps, and product.

Key Responsibilities
 API & Auth
 

• Design and maintain RESTful APIs for iOS, Android, and web
• Build high-throughput async endpoints
• Implement JWT auth flows and OAuth 2.0 social login (Apple, Google)

Microservices & Architecture
 

• Develop and maintain core services: User, Content, Tracking, Analytics, Notification
• Design stateless, fault-tolerant services for horizontal scaling
• Contribute to Golang services for high-concurrency analytics and notification dispatch

Database & Caching
 

• Write optimized PostgreSQL queries; design schema migrations indexes
• Implement time-based table partitioning for analytics and journal data
• Configure PgBouncer pooling, read/write splitting, and materialized views
• Build and invalidate multi-layer Redis caches (sessions, content metadata, preferences)

Integrations
 

• Apple HealthKit (sleep, HRV, mindful minutes, activity sync)
• In-app purchases: App Store API and Google Play Billing verification
• Push notifications via Firebase Cloud Messaging (iOS & Android)
• Stripe for web subscription payments; Amazon Polly for TTS in meditations

Security & GDPR
 

• GDPR features: data export (JSON), 30-day automated deletion, consent management
• AES-256-GCM encryption for sensitive mental health data fields
• Enforce TLS 1.3, HSTS, Perfect Forward Secrecy; contribute to RBAC and audit logging

DevOps & Quality
 • Maintain Dockerfiles and multi-stage build configs; participate in GitLab CI/CD pipeline
 • Support blue-green deployments and canary rollouts (10% traffic routing)
 • Write unit, integration, and contract tests using pytest

Requirements
Must Have
 • 5+ years backend development in Python
 • Confident working with the Flask and FastAPI frameworks.
 • Experience with Golang, JavaScript, and HTML.
 • VPS management skills on AWS: initial setup, application deployment, performance optimization, updates, security, and monitoring.
 • Experience working with Elasticsearch.
 • Strong PostgreSQL skills: schema design, query optimization, indexing, migrations
 • Redis for caching, session management, and rate limiting
 • JWT authentication, OAuth 2.0, and security best practices
 • Experience with pytest and contributing to CI/CD pipelines
 • Comfortable working in a Docker-based microservices environment
 • Knowledge of GDPR requirements and privacy-by-design practices
 • Proficiency with Git and collaborative workflows (GitFlow)

AI & Automation

• Strong understanding of AI-powered development workflows and modern AI tools
• Experience using AI-assisted coding tools such as ChatGPT, Claude, GitHub Copilot, Cursor, and Lovable
• Ability to leverage AI tools to improve development speed, debugging, documentation, testing, and code quality
• Understanding of AI integrations, LLM APIs, prompt engineering, and AI-assisted automation workflows
• Experience working with AI-generated code while maintaining high standards for security, scalability, and maintainability

We are an established iGaming company with 4+ years of experience and a team of 1600+ specialists, managing 10+ large-scale projects across Tier 1–3 markets.

As part of our strategic growth, we are partnering with a professional SEO company operating in highly competitive iGaming and casino niches. Their team builds and scales SEO strategies where results and a systematic approach truly matter.

We are supporting them in the search for a strong Team Lead of SEO who will scale the direction, build high-performing teams, and drive sustainable project growth.

Key Responsibilities

• Develop and implement SEO strategies for project portfolios and international brands
• Build and manage teams of SEO specialists and experts of various profiles
• Optimize processes to enable scaling of the SEO direction and increase overall efficiency
• Work with highly competitive geographies, continuously improving approaches and adapting to search engine algorithm changes
• Collaborate with all key departments of the company to ensure effective traffic monetization
   

Required Skills

• Hands-on SEO experience — from deep understanding of algorithms to technical aspects (redirects, canonicals, server responses, indexing)
• Experience in team or department management — ability to scale processes and effectively lead people
• Experience working with large website portfolios and multi-brand structures — ability to manage multiple projects and a complex SEO ecosystem
• Background in competitive niches, especially iGaming / casino / affiliate, where performance and results are critical
• Strong analytical and strategic mindset combined with a realistic assessment of team resources and capabilities
   

What We Offer

• A key role in developing the SEO direction of an international holding
• Autonomy in strategic decision-making and the opportunity to implement your own ideas
• Long-term cooperation with a stable company
• Support from owners and a senior team with deep SEO expertise
• Flexible cooperation format (in-house / contract), modern tools, and resources to execute ambitious plans
  
  📩 Ready to build a high-impact affiliate program from the ground up? Send us your CV — let’s talk!

We are a professional SEO company working with international clients in highly competitive iGaming and casino niches.
Our team of specialists creates and scales SEO strategies for project portfolios where results and a systematic approach truly matter.
We continuously improve our processes, implement cutting-edge optimization methods, and are looking for a Head of SEO who will help us scale the direction and build teams for effective project growth.
 

Key Responsibilities

• Develop and implement SEO strategies for project portfolios and international brands
• Build, manage, and scale teams of SEO specialists, team leads, and experts of various profiles
• Optimize internal processes to scale the SEO direction and increase overall efficiency
• Work with highly competitive geographies, continuously improving approaches and adapting to search engine algorithm updates
• Collaborate with all key departments of the company to ensure effective traffic monetization
   

Requirements

• 5+ years of hands-on experience in SEO
• 2+ years of experience managing SEO teams or SEO directions
• Experience working with large-scale SEO projects and multi-brand structures
• Strong technical SEO expertise (indexing, redirects, canonicals, server responses)
• Practical understanding of Google Core Updates, E-E-A-T, and anti-spam filters
• Experience setting tasks for developers and controlling their execution
• Understanding of a performance-driven approach to SEO and traffic monetization
• Experience in iGaming, casino, affiliate, or other highly competitive niches will be a strong advantage
• Strong analytical and strategic mindset combined with a realistic assessment of team resources and capabilities
   

What We Offer

• A key role in developing the SEO direction of an international holding
• High level of autonomy in strategic decision-making and the opportunity to implement your own ideas
• Long-term cooperation with a stable and fast-growing company
• Direct support from company owners and a senior team with deep SEO expertise
• Flexible cooperation format (in-house or contract), modern tools, and all necessary resources to execute ambitious plans
  
  📩 Ready to build a high-impact affiliate program from the ground up? Send us your CV — let’s talk!

Project overview:

Group107 is building a dedicated AI Unit to drive automation across the company and deliver AI-powered solutions for client projects.

We are hiring Junior AI Developers who think fast, learn faster, and are already productive with modern AI-assisted development workflows.

You will work directly under the Tech Director and grow into autonomous AI engineers capable of owning full delivery pipelines.

Requirements:

• 1+ year of hands-on software development experience (commercial or substantial personal projects)
• Demonstrable proficiency with AI coding tools: Claude Code, Cursor, GitHub Copilot, or equivalent
• Working knowledge of at least one: TypeScript/JavaScript or Python
• Experience deploying web applications (Vercel, Netlify, or similar)
• Understanding of LLM fundamentals: prompting, context windows, token management, tool use
• Ability to read, debug, and refactor AI-generated code critically — not just accept output blindly
• Git proficiency and basic CI/CD awareness
• Strong English communication (both written and spoken)
   

Nice to have:

• Experience with v0, Bolt, Lovable, Replit Agent, or similar AI app builders
• Familiarity with MCP (Model Context Protocol) and agentic AI patterns
• Contributions to open-source AI tools or published AI-related content
• Experience with RAG pipelines, vector databases, or embeddings
• Backend experience with Node.js, Next.js, or FastAPI
• Understanding of DevOps basics: Docker, serverless functions, edge computing
   

Responsibilities:

• Build internal automation tools and workflows using AI coding assistants (Claude Code, Cursor, Copilot)
• Develop and ship AI-powered features and full applications for client projects
• Prototype rapidly using vibe-coding methodology — prompt-driven development with AI pair-programming
• Integrate LLM APIs (Anthropic, OpenAI, open-source models) into production systems
• Deploy and maintain applications on modern platforms (Vercel, Cloudflare, AWS)
• Create and manage AI agents, MCP servers, and tool-use pipelines
• Evaluate, benchmark, and select AI models and tools for specific use cases
• Document solutions, write technical specs, and contribute to the internal knowledge base
  
  We offer:
• 20 vacation days (workdays)
• 7 sick days
• Personalized career growth
• Education reimbursement
• Corporate events and team buildings
• Equipment provided

About Us:

Atto Trading is a dynamic quantitative trading firm at the forefront of global high-frequency strategies. We are seeking a C++ Software Engineer to join our growing team. 

This position is open for relocation for in-office presence to Lisbon, Portugal or remote work from Ukraine, with in-office presence in Kyiv required once circumstances allow.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 


What You’ll Do:

• Design and deploy performance-critical components for large-scale trading infrastructure.
• Develop high-frequency trading (HFT) systems in C++ with an emphasis on low latency and reliability.
• Write modern, efficient code using the latest C++ standards.
• Interface directly with cutting-edge networking hardware via kernel-bypassing drivers.
• Conduct performance research to push the boundaries of our platform's speed and scalability.
  
   

What We’re Looking For:

• 3+ years of hands-on experience with C++ development.
• Deep understanding of C++ standards (C++14, C++17; C++20 is a strong plus).
• Hands-on experience with Python and/or Bash scripting.
• Proficiency with Linux environments and system-level programming.
• Solid grasp of multithreading, IPC, and concurrent systems.
• Strong skills in latency and throughput optimization, including experience with profiling and PGO.
• Knowledge of OOP and software design patterns.
• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Excellent attention to detail, with a critical and quality-focused mindset.
• Comfortable working independently or in small teams in a dynamic, high-speed environment.
• Strong communication skills and upper-intermediate (or higher) English proficiency.
• Curiosity and passion for financial markets and trading.
  
   

Nice to have:

• Experience developing high-performance, low-latency systems on Linux.
• Familiarity with OS internals and kernel-level networking.
• Understanding of financial instruments such as stocks, ETFs, futures, or options.
• Protocol-level networking knowledge (TCP/UDP/IP stack insights are a plus).

What we Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Healthcare & Sports/gym budget
• Mental health support, including access to therapy
• Paid time off (25 days)
• Relocation support (where applicable)
• International team meet-ups
• Learning and development support, including courses and certifications
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

About Us:

Atto Trading is a dynamic quantitative trading firm at the forefront of global high-frequency strategies. We are seeking a C++ Software Engineer to join our growing team. 

This is a remote-first position based in Ukraine, with occasional in-office presence in Kyiv expected when conditions permit.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 


What You’ll Do:

• Design and deploy performance-critical components for large-scale trading infrastructure.
• Develop high-frequency trading (HFT) systems in C++ with an emphasis on low latency and reliability.
• Write modern, efficient code using the latest C++ standards.
• Interface directly with cutting-edge networking hardware via kernel-bypassing drivers.
• Conduct performance research to push the boundaries of our platform's speed and scalability.
  
   

What We’re Looking For:

• 3+ years of hands-on experience with C++ development.
• Deep understanding of C++ standards (C++14, C++17; C++20 is a strong plus).
• Hands-on experience with Python and/or Bash scripting.
• Proficiency with Linux environments and system-level programming.
• Solid grasp of multithreading, IPC, and concurrent systems.
• Strong skills in latency and throughput optimization, including experience with profiling and PGO.
• Knowledge of OOP and software design patterns.
• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Excellent attention to detail, with a critical and quality-focused mindset.
• Comfortable working independently or in small teams in a dynamic, high-speed environment.
• Strong communication skills and upper-intermediate (or higher) English proficiency.
• Curiosity and passion for financial markets and trading.
  
   

Nice to have:

• Experience developing high-performance, low-latency systems on Linux.
• Familiarity with OS internals and kernel-level networking.
• Understanding of financial instruments such as stocks, ETFs, futures, or options.
• Protocol-level networking knowledge (TCP/UDP/IP stack insights are a plus).

What we Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Healthcare & Sports/gym budget
• Mental health support, including access to therapy
• Paid time off (25 days)
• Relocation support (where applicable)
• International team meet-ups
• Learning and development support, including courses and certifications
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies, is looking for a Data Engineer to join our team.
We are expanding an international, diverse team with experts in trading, statistics, engineering, and technology. Our disciplined approach, combined with rapid market feedback, allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort.

At Atto Trading, data is the foundation of every trading decision we make. As a Senior Data Engineer, you will own and evolve the on-premise Data Lake that powers our quantitative research and production trading - a system handling 1PB+ of market data today and growing by 100TB each year.

The Role

You will take end-to-end ownership of our data infrastructure: from architecting high-performance storage on our VAST platform to designing the pipelines that deliver clean, reliable market data to traders and researchers. This is a high-ownership role in a small, fast-moving team where your work directly shapes our research and trading capabilities.

What You'll Do:

• Design and manage scalable on-premise storage systems optimized for high-throughput analytics and research workloads
• Build and operate end-to-end ETL/ELT pipelines (Prefect/Airflow) for market data across US Equities, Futures, SIP feeds, and other sources
• Implement data quality validation frameworks and SLA/SLO monitoring to detect anomalies and ensure data completeness
• Develop metadata and catalog layers for efficient data discovery and self-service access across the firm
• Design event-driven architectures for near real-time market data processing and delivery

• Conduct structured intake sessions with quant researchers to map their data access patterns, query workloads, latency needs, and iteration cycles

   

What We're Looking For

• 5+ years of experience in data engineering or data platform roles, with proven large-scale infrastructure ownership (100TB+)
• Strong understanding of market data structures: trades, quotes, order books, corporate actions
• Production-grade Python and SQL; experience building APIs (FastAPI or equivalent)
• Experience with DAG orchestration tools (Prefect, Airflow or similar)
• Deep familiarity with binary columnar storage formats (Parquet, Feather/Arrow IPC), including encoding strategies, compression tuning, row group sizing, predicate pushdown and schema evolution trade-offs
• Design namespace structure, tiering strategies, and protocol selection (NFS/S3) on VAST, optimizing for mixed workloads (experience with Vast Database and Vast Data engine is a plus)
• Bachelor's in Computer Science, Engineering, or equivalent; 
• Quantitative finance background is a plus

What We Offer:

• Competitive compensation with a performance-based bonus
• 25 days PTO
• Healthcare and gym budget
• Mental health support
• Paid lunches
• Relocation assistance
• Learning budget for courses and certifications
• All within a modern office and a team that genuinely loves what it builds

About us:

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies.
We are expanding an international, diverse team with experts in trading, statistics, engineering, and technology. Our disciplined approach, combined with rapid market feedback, allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 

Role Highlights: 

We’re looking for a Talent Sourcer / Recruiter to help identify and engage exceptional technical and quantitative talent. You will support sourcing, outreach, and interview coordination while learning to operate in a fast-paced, high-standard environment. 
This role is ideal for someone ambitious, detail-oriented, and motivated by performance and impact.

Please note: This role requires in-office presence in one of our locations - Kyiv, Ukraine or Lisbon, Portugal.

Responsibilities: 

• Build and maintain candidate pipelines for highly selective technical roles (quant research, software engineering, trading operations, infrastructure) to support current and future hiring needs.
• Proactively source, identify, research, and engage active and passive candidates via LinkedIn, GitHub, Djinni, job boards, referrals, and niche communities (quant, code/dev, competitive programming), leveraging creative sourcing strategies (Boolean search, social networks, community channels).
• Identify and shortlist relevant profiles based on experience, achievements, tech stack, and location.
• Conduct initial screening, including resume evaluation against role requirements.
• Run outreach campaigns and manage candidate engagement, including personalized messaging, follow-ups, screening requests, and pipeline nurturing.
• Partner with senior recruiters and hiring managers to support the full recruitment cycle, including interview coordination, scheduling, and calendar management.
• Maintain and update the ATS, ensure accurate daily candidate status tracking, and support overall pipeline hygiene.
• Support market and talent research (hiring trends, layoffs, competitors, new sourcing channels).

Requirements:

• Bachelor’s Degree.
• Upper-Intermediate or higher level of English.
• 2+ years of experience in technical recruitment, talent sourcing, or recruitment coordination in a fast-paced environment (software, fintech, gamedev or similar).
• Experience sourcing/recruiting in the US market.
• Proactive sourcing skills (LinkedIn Recruiter, Boolean search).
• Proficiency with modern recruiting tools (including LLM-based tools).
• Experience with ATS (Greenhouse, Lever, or similar) is highly beneficial.
• Strong communication and negotiation skills.
• Ability to work independently, proactively in a fast-paced, high-performance environment with high-quality standards.
• Strong organizational skills, attention to detail.
• Ownership mindset.
• Interest in the trading domain will be a plus.

What We Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Paid time off (25 days)
• Healthcare and sports/gym budget
• Mental health support, including access to therapy
• Relocation support (where applicable)
• Learning and development support, including courses and certifications
• Clear growth opportunities within the recruitment team
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches
• International team meet-ups

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, allowing you to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

A5 Labs is the advanced technology group for online mobile gaming companies, some of the largest mobile gaming sites in the world. The group develops leading-edge security technology and creates innovative modern game designs. A5 bets on its people. Outstanding talent and achievement should be rewarded with a superior work environment, outsized incentives, and growth opportunities. If you are the best, you deserve the best. Not later. Now.

This is a fantastic chance to work with a fast-growing company in the tech industry.

Overview

Given the great success of A5 Labs, we are now looking to appoint an experienced QA Engineer to help our QA Team and company scale up at speed. We are seeking a self-starter, who is experienced in evaluating the needs of our fast-growing group company and can shape and grow our QA capabilities in line with the business growth.

As a QA Engineer, you will ensure the quality of our Poker domain by designing, developing, and executing test plans, test cases, and test scripts. Applying test automation where necessary. Working closely with the Product Manager and the Engineering team.

What will we do for you?

This is a unique opportunity to build and shape the QA function in a fast-growing and successful organization. Working with world-class colleagues hand-picked from around the world, you will be joining a dream team and leading A5 to further success.

We offer a fully remote working environment with an opportunity to work with some of the best in the industry with a flexible leave policy that is more output-oriented.

What will you do for us?

Dedication to work: we need a hard worker to be able to maintain a high performance on a daily basis tasks in the fully remote work environment
To work without a supervisor, you will own the testing domain for the engineering team (with potentially expanding it and build you own team)

Test old and new features for the Poker-related software

Having a proper test design in place before the execution to ensure better Test Coverage.

Monitor and analyze quality performance.

Collaborate with the Product and Development Team to achieve consistent project execution.

Continuous investigation through Regression to ensure quality.

Create and maintain a suite of test cases in TestRail.

Identify test automation opportunities and implement solutions

Collaborate with development teams to ensure proper integration of automated tests

Execute automated tests and report on test results

Collaborate effectively with ProductTeam, Developers, Designers, DevOps Engineers, and the wider business.

Investigate and create bug reports in Jira.

Perform ad hoc testing requests from reports raised by our customers.

Maintain and expand the regression testing suite.

What you’ll bring to the table?

A deep understanding of Poker is a must (A level of 'I play poker with my friends' is not enough; At least VPIP and PFR terms are not something you will ask LLM what that is) 

Familiarity with how the Poker Solver apps work

4+ years of experience working in a fast-paced quality assurance environment.

Experience in Web-based Application Testing and Software QA tools and processes.

Excellent speaking and writing English skills (C1+). Communicating within the team is fully in English

Critical Thinker and problem-solving skills. Ability to understand how the application interacts with other external systems and how to apply proper testing algorithms to make sure it works as expected.

Hands-on experience in any Test case Management tool.

Excellent test case management skills (Design, Execution, maintenance, Test Coverage)

Basic experience with test automation frameworks such as Playwright, Cypress.io

Strong experience with mobile native applications on both iOS and Android platforms testing.

Demonstrable experience in creating QA capability, ideally in a growing organization.

Experience working in a collaborative Agile (Scrum / Kanban) environment.

In-depth experience testing applications on desktop and mobile, as well as web-based solutions.

A5 Labs is an inventive Bay Area research and development company that researches, designs and develops fair, safe, and sustainable gaming solutions. We pioneer innovations using large-scale data, machine learning, game theory, and innovative UX, UI, and game mechanics to promote engagement and sustain the health of large-scale online competitions & platforms.

We research solutions that can detect the use of bots, and AI-assisted gameplay, and more generally, draw the line between human and non-human behavior in online competitions. Building on our research & technologies, we engineer gaming solutions that can automatically detect player skill levels and dynamically adjust game competitions to promote engagement, fairness, and long-term health.

If you are looking for a company that will value your skillset and challenge you to rise to be the best, look no further. Let’s get you started on your new journey.

We are hosting the largest public online catalog of chemical compounds — over 11 billion compounds from suppliers from all over the world — and provide the researchers and procurement professionals with ultra-fast chemical and text searches for the best exploring and purchasing experience.

We combine expertise in chemical sourcing and procurement with one in building integration solutions for smooth and seamless ordering process. One of our main focuses now is building B2B products to cooperate with various Pharma companies.

We are opening a Product Owner position aiming to expand our business in SaaS model.

IN THIS ROLE YOU WILL:

1. Develop Product Vision:
   
    
   1. Engage closely with customers to define and continually refine the product vision, ensuring alignment with market needs and business objectives
   2. Translate customer needs into detailed product requirements
2. Manage Product Backlog:
   
    
   1. Create and maintain a comprehensive product backlog
   2. Prioritize backlog items based on value and strategic goals
   3. Facilitate backlog grooming sessions and ensure that the backlog is organized and actionable for the development team
3. Ensure Project Success:
   
    
   1. Coordinate project timelines and deliverables with customers.
   2. Monitor progress to ensure alignment with project goals and customer’s expectations
   3. Implement best practices to manage risks and ensure that project deliverables meet quality standards and customer satisfaction
4. Facilitate Communication:
   
    
   1. Serve as the main point of contact for product and project updates
   2. Keep stakeholders informed and engaged throughout the project lifecycle

WE ARE LOOKING FOR SOMEONE WHO HAS:

• Experience & Expertise:
• 3+ years in a similar role (Business Analyst/Product Owner)
• Experience with Jira Software
• Strong understanding of Agile methodology
• Skills & Proficiencies:
• Upper-intermediate English proficiency, with strong communication and writing skills in both Ukrainian and English
• Analytical mindset with the ability to understand and address complex business processes
• High attention to detail and strong responsibility
• Personal Attributes:
• A strong sense of ownership and pride in product development
• Capability to adjust to changing priorities and new challenges

WE OFFER:

• Competitive compensation depending on the experience and skills
• Flexible working hours
• Interesting business domain
• Comprehensive benefits package including sick leaves, annual vacation, medical insurance and sport compensations
• English language courses
• Individual annual budget on education
• Friendly working environment

Requirements

• Strong knowledge of PHP (1+ year of hands-on experience) and Laravel framework (1+ year);
• Basic understanding of front-end technologies: JavaScript, HTML5, CSS3;
• Experience with version control systems such as Git, Bitbucket, or similar;
• Hands-on experience integrating third-party APIs (Google, Facebook, and others);
• High level of self-organization, responsibility, creativity, and professional ethics;

• Strong communication skills and a proactive mindset. 

  Responsibilities

• Develop, maintain, and support company websites and web applications;
• Communicate with clients, clarify requirements, answer questions, and provide effective solutions;
• Participate in all phases of the software development lifecycle;
• Follow best practices in coding, security, and data protection, especially when working with sensitive data (API keys, tokens, etc.);

• Collaborate with the team to improve product quality and performance.

   

  We offer an opportunity to grow professionally, work on interesting projects, and be part of a supportive and dynamic team.

About the Position

We’re growing fast and looking for a Senior Backend Engineer to join our Engineering team and help build the infrastructure that powers our platform at scale.

This is a high-impact role where you’ll work alongside top-tier engineers, designing and building secure, high-performance systems in a fast-paced environment. If you enjoy solving complex technical challenges and want your work to have real impact — we’d love to meet you.

What We’re Looking For

• Bachelor’s degree in Computer Science or a related field
• 5+ years of experience in backend development
• Strong experience building scalable, production-grade systems
• Proficiency in Node.js
• Experience with SQL and NoSQL databases
• Familiarity with cloud platforms and microservices architecture
• Strong problem-solving skills and attention to detail
• Passion for writing clean, maintainable, and efficient code

Bonus Points For

• Experience in cybersecurity or building security-focused products
• Experience working in startup or high-growth environments
• Familiarity with DevSecOps / SDLC tools
• Experience with distributed systems and high-scale data processing

We’re looking for a Full-Stack Developer (Laravel, React) to join a full-time, long-term project.

Required Skills

• At least a Bachelor with background in tech or equivalent based on work experience
• 6+ years work experience with the Laravel and React frameworks
• Experience building applications with Javascript/Typescript, PHP, HTML5, CSS and MySQL 8
• Experience mentoring and supporting the professional growth of fellow engineers
• Experience working with large development teams
• Clearly explain complex technical concepts to non-technical audiences
• Strong track record of leading technical projects and coordinating teams of 3+ engineer
• Passionate about usability, user experience, beauty and elegance of UI's
• Eager to learn, discuss and share knowledge with the rest of the teams
• Nice to have: knowledge of Kubernetes, Docker, and other tools user in DevOps
• Absolute fan of TDD and CI/CD pipelines
• Background in product-based companies with multiple product and engineering teams
• Proven track record of driving engineering initiatives that impacted other teams or the wider organization

The Right Mindset

• You’re an engineer, always interested in new technologies, pushing your boundaries and challenging others.
• You're fluent in business English, both written and verbal
• Critical thinking and initiative: Hands-on, nothing-is-impossible mindset
• Enjoy working with teams with multidisciplinary backgrounds
• Experience working in dynamic environments, such as a startup or scaleup environment
• Strong user-orientation and communication skills
• Strong presentation skills
• Pro-active attitude, go-get mentality
• Analytical, troubleshooting skills
• Structured, able to clearly define, prioritize and plan your own tasks
• Commitment to deliver quality (first time right) and on-time
• Motivated and enthusiastic team player, supporting your colleagues
• Keen to learn and further develop your expertise

Job Details:

• Full-time.
• Fully remote.
• Long-term.
• Location: Ukraine or Europe.
• The client is based in the Netherlands. They operate within the CET time zone.
• Start: ASAP.

Supplax is an American company with a Ukrainian heart that has been actively growing in the market for over 5 years. We serve as a remote back office for craftsmen in the United States who specialize in repair services. Our team includes more than 100 specialists and fully handles all organizational and operational processes, except for the repair work itself. These include marketing, sales, management of technicians’ teams, quality control, collecting reviews, training technical staff, and more. We operate in 30+ major cities across the U.S. and have successfully completed over 30,000 repair projects.

You can learn more about the company by following this link: https://youtu.be/lwjSSnodHmg. There you will learn about our mission, values, advantages, and hear about working at Supplax directly from our employees.

Supplax is rapidly evolving and growing, so we are currently looking for an active Sales Manager. In this role, you will be responsible for working with a cold contact database: establishing the first contact with potential clients, identifying their needs, and generating interest for further cooperation.

What you will get by becoming part of Supplax:

• Full-time employment with a five-day working week.
• Remote work format.
• Working hours: 16:00 — 01:00 Kyiv time.
• Comprehensive training and immersion into the specifics of the role.
• Salary of $800 + up to $1000 in performance-based bonuses.
• Structured work with B2B clients, specifically designers and contractors.
• Regular English practice with a teacher.
• The opportunity to quickly develop cold-calling skills.
• Career growth to an Account Manager position based on strong performance.

Your role will include:

• Active work with cold calls (200+ calls per day).
• Initiating the first contact with potential clients and identifying their interest in cooperation.
• Passing interested leads to the Account Manager.

You are definitely our match if you:

• Have a high level of spoken English — not lower than C1 (or a confident B2+ with regular practice), as the position involves constant communication with native speakers.
• Feel comfortable with cold calling and are not afraid of active communication.
• Your comfort zone includes frequent conversations, initiative, and result-oriented work.
• Can work efficiently in a fast-paced environment.
• Learn quickly and are ready to continuously improve your cold-calling skills.

Interested? Apply now and see you at the interview! 🚀