Jobs at Djinni

JustMarkets is looking for a Senior ASO Specialist to join our Marketing team and drive the organic growth of our mobile applications across App Store and Google Play.

In this role, you'll be responsible for developing and executing ASO strategies, optimizing app store visibility, increasing organic installs, and improving conversion rates. You'll collaborate closely with Product and Design teams to enhance the performance of our mobile apps across multiple international markets.

Responsibilities

• Develop and execute ASO strategies for App Store and Google Play.
• Conduct keyword research and build semantic cores for multiple GEOs and languages.
• Optimize app metadata, including titles, descriptions, keywords, and visual assets.
• Plan, launch, and analyze A/B tests to improve app store conversion rates.
• Manage Product Page Optimization (PPO), Store Listing Experiments, Custom Product Pages (CPP), and Custom Store Listings (CSL).
• Monitor keyword rankings, organic visibility, and app store performance.
• Localize app store listings for different markets and languages.
• Collaborate with Product, Design, and Performance Marketing teams to improve app performance.
• Monitor user reviews and ratings, maintaining a high app rating (4.5+).
• Analyze competitors and identify opportunities to improve organic growth.

Requirements

• 3+ years of commercial experience in App Store Optimization (ASO).
• Hands-on experience with App Store Connect and Google Play Console.
• Strong knowledge of Keyword Research, Semantic Core development, and Metadata Optimization.
• Experience with A/B testing and Conversion Rate Optimization (CRO).
• Experience with Product Page Optimization (PPO), Store Listing Experiments, Custom Product Pages (CPP), and Custom Store Listings (CSL).
• Experience using ASO tools such as AppTweak, Sensor Tower, MobileAction, App Radar, or similar.
• Experience working with localization for multiple markets and languages.
• Strong analytical thinking and data-driven decision-making.
• Intermediate English or higher

Will be a plus

• Experience in FinTech, CFD/Forex, Crypto, iGaming, or other mobile-first products.
• Experience working with international mobile products across multiple GEOs.

We offer

• Opportunity to build and scale the ASO direction within an international FinTech company.
• Work on global mobile products across multiple international markets.
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company's approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear, and related expenses)

About ByChat FinOps

ByChat FinOps is a production-ready B2B AI platform that helps organizations understand, analyze, and optimize cloud infrastructure costs across AWS.

Our platform combines cloud billing data with Generative AI, enabling users to ask natural language questions such as:

• Why did our cloud costs increase this month?
• Which services generate the highest expenses?
• Will we exceed our budget next quarter?
• Where can we reduce infrastructure costs?
   

Behind the scenes, intelligent LLM Agents work with cloud APIs, read-only SQL queries, billing datasets, forecasting models, anomaly detection algorithms, and FinOps analytics to deliver accurate, explainable business insights.

ByChat FinOps is an actively growing production product where AI reliability, security, scalability, and measurable business value are our highest priorities.
 

About the Role

We are looking for a Senior / Lead ML Consultant to support our engineering team on a part-time basis and provide expert guidance on the architecture, development, evaluation, and optimization of our AI/ML capabilities.

This is primarily an advisory and technical leadership role rather than a full-time hands-on engineering position.

You will work closely with our AI/ML engineers and technical team, review existing approaches and processes, identify potential risks and inefficiencies, and provide practical recommendations for improving the quality, reliability, and efficiency of our AI systems.

We expect you to act as a senior technical advisor and sparring partner for the team, helping us validate technical decisions and ensure that our ML/LLM practices meet production-grade standards.
 

What You'll Do

Your responsibilities will include:

• Review the architecture and implementation of our AI/ML and LLM-based solutions.
• Provide regular technical feedback to AI/ML engineers and help validate key engineering decisions.
• Review existing ML/LLM development processes and recommend improvements.
• Evaluate the effectiveness, reliability, and scalability of current AI workflows.
• Advise the team on the design of LLM Agents, sub-agents, tool calling, structured outputs, and agentic workflows.
• Review approaches to prompt engineering, context management, guardrails, validation, retries, and hallucination mitigation.
• Assess and improve LLM evaluation methodologies, automated testing, golden datasets, and quality metrics.
• Advise on AI observability, tracing, monitoring, and production quality control.
• Review Text-to-SQL approaches and help ensure safe and reliable interaction with financial datasets.
• Provide guidance on anomaly detection, forecasting, and other ML components used within the platform.
• Identify performance bottlenecks and opportunities to optimize LLM latency, token usage, infrastructure usage, and operational cost.
• Help the team evaluate new AI/ML technologies, frameworks, models, and architectural approaches before introducing them into production.
• Participate in technical discussions and architecture reviews for complex AI-related features.
• Mentor engineers and help strengthen the team's ML/LLM engineering practices.
• Help establish practical engineering standards and best practices for building production-grade AI systems.
   

What We Expect

Must Have

• Strong senior-level commercial experience in Machine Learning / AI Engineering, ideally including technical leadership or consulting responsibilities.
• Proven experience designing and reviewing production AI/ML systems.
• Strong practical experience with modern LLM applications and Agentic AI systems.
• Deep understanding of:
  • LLM Agents and agentic workflows
  • Prompt Engineering
  • Function / Tool Calling
  • Structured Outputs
  • Context management
  • Hallucination mitigation
  • Guardrails and validation
  • Retry and fallback strategies
• Strong understanding of ML/LLM evaluation methodologies and how to measure AI system quality in production.
• Experience with AI observability, tracing, testing, and monitoring.
• Strong Python and SQL knowledge with the ability to review implementation and architecture decisions.
• Understanding of statistics, anomaly detection, forecasting, and data-driven system evaluation.
• Experience identifying technical risks, architectural weaknesses, and performance bottlenecks.
• Ability to translate complex technical findings into clear, practical recommendations for an engineering team.
• Strong communication and mentoring skills.
• English sufficient for technical discussions, documentation, and regular communication with the team.
   

Nice to Have

• Previous experience as a Lead ML Engineer, ML Architect, AI Architect, Staff/Principal ML Engineer, or ML Consultant.
• Experience with LangChain, LangGraph, or other Agent frameworks.
• Experience with AWS Bedrock, Claude, or other managed LLM platforms.
• Experience with FinOps, cloud billing, or cloud cost optimization.
• Knowledge of:
  • AWS CUR
  • AWS Cost Explorer
• Experience with Langfuse, LangSmith, RAGAS, or similar AI observability and evaluation platforms.
• Experience designing evaluation pipelines and golden datasets for LLM applications.
• Experience with forecasting and time-series analysis.
• Experience processing large financial or billing datasets.
• Understanding of multi-tenant architectures and secure AI tool execution.
• Experience optimizing LLM latency, token usage, and operational costs.
   

Technology Stack

• Python 3.12
• FastAPI
• LangChain
• LangGraph
• AWS Bedrock
• PostgreSQL
• SQL
• Langfuse
• RAGAS
• Docker
• Next.js / TypeScript
   

Engagement Format

• Part-time consulting engagement
• Flexible involvement based on project and team needs
• Regular technical reviews and consultations with the AI/ML team
• Architecture and solution reviews for key AI/ML initiatives
• Focus on technical guidance, quality assurance, process improvement, and mentoring rather than day-to-day feature implementation
   

Why Join Us?

• Influence the technical direction of a real production AI product without committing to a full-time role.
• Work on challenging problems at the intersection of Generative AI, Agentic AI, Cloud, and FinOps.
• Help shape the architecture and engineering practices behind production-grade AI systems.
• Work with a team that values measurable AI quality, reliability, security, and business impact.
• Apply your senior-level expertise where it has the highest impact: technical decisions, architecture, evaluation, optimization, and team development.
• Stay close to modern AI technologies while working in a flexible consulting format.

Dash Financial Technologies is a leading trading technology provider to the institutional trading community. With a suite of highly customizable tools, Dash designs and delivers intelligent, high performance solutions in four product categories: Trading Technologies, Execution Services, Analytics and Regulatory Technologies. With a relentless focus on transparency, performance and customization, Dash Financial Technologies caters to institutions that require increasingly specialized, complex and adaptable tools to exceed their goals surrounding best execution

We are looking for a skilled Business Analyst, ideally with experience in Capital Markets domain, as a ramp-up of our BA capacity on a modern order management system project. 

 

Requirements
o You have a technical background
o You have a passion for great, structured documentation and the benefits of knowledge management.
o You communicate clearly and precisely, leading others and transferring knowledge efficiently.
o You form strong, honest, and mutually respectful relationships with the key stakeholders

Desirable
o You have experience working with asset classes such as US Equities and Equity/Index Options.
o You have a good understanding of order management specifics particularly in the trading systems
o You are familiar with the FIX Protocol

Responsibilities
o Play the role of Business/System Analyst
o Work closely with the client to ensure requirements are captured, the scope is controlled, and expectations are met
o Work closely with the development team to do the entire system design
o Participate and facilitate workshops, stakeholder interviews, UX design sessions, solution planning & review meeting, etc.
o Specification of new functionality across the frontend and backend components
o Ongoing improvement of knowledge through better documentation and knowledge management infrastructure
o Play a proactive role in proposing new processes, tools & approaches
o Assist in project planning, quality control, and user acceptance testing
o Help investigate complex functional software issues, assist in root cause analysis, and establish a solution
o Identify and manage risks and flag major issues early

We are offering You 

• Remote work   
• Flexible working hours 
• All necessary equipment (laptop,monitors. etc.) 

Overview

We are looking for a detail-oriented and motivated  Quality Assurance Specialist to join our team. This is a great opportunity for someone who has completed a QA Academy, QA training program, or similar practical course and is ready to start their professional career.

No prior commercial experience is required, but candidates should have a basic understanding of QA processes, testing web applications, writing test cases, and documenting requirements.

This role is ideal for someone who can learn quickly, communicate clearly, organize information, and help ensure high-quality delivery of web applications.

Key Responsibilities

• Gather, analyze, and document business and functional requirements
• Collaborate with stakeholders, developers, and team members 
• Create and maintain test cases and test scenarios based on requirements
• Perform functional, regression, and exploratory testing of web applications
• Identify, document, and track defects through resolution
• Maintain clear and consistent documentation across all deliverables
• Learn and follow team processes, tools, and quality standards

Requirements

• Completed QA Academy, QA bootcamp, QA training program, or equivalent hands-on QA course
• Basic understanding of software testing concepts and QA processes
• Ability to write test cases, test scenarios, and bug reports
• Basic understanding of web applications and how users interact with them
• Strong attention to detail and ability to organize information clearly
• Analytical thinking and problem-solving mindset
• Good written and verbal communication skills
• Willingness to learn, ask questions, and improve through feedback
• Familiarity with tools such as Jira, Trello, Excel, Google Sheets, or similar tools

Nice to Have

• Practice testing web applications during QA Academy or training projects
• Experience creating documentation, user stories, or acceptance criteria
• Basic understanding of Agile/Scrum processes
• Exposure to HR, recruiting, or business operations systems
• Basic understanding of APIs, databases, or backend systems
• Portfolio, training project, or sample test documentation

Experience Level

This is an entry-level role. We welcome candidates with no prior commercial experience, provided they have completed QA Academy or similar QA training and can demonstrate basic hands-on skills in software testing, documentation, and analytical thinking.

Candidates with internship, freelance, training project, or personal project experience are also encouraged to apply.

Job Title:

Block-Builder Engineer

Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

About the Product:

An advanced block construction platform operating on the Ethereum mainnet that processes order flow, transaction bundles, and submits finalized blocks through relay networks in real time. It addresses neutral and efficient block building to unlock new decentralized finance capabilities, including intrablock lending and execution extensions. The system handles high-throughput data pipelines and strict latency requirements, backed by comprehensive observability and analytics to drive iterative improvements based on live production metrics. Strong engineers are essential to maintain system health under real-time load, verify data-driven hypotheses, and innovate on core protocol logic.

About the Role:

The Block-Builder Engineer will join an experienced team in Kraków or Warsaw to develop and maintain a next-generation Ethereum block construction system. You will own pipeline components that ingest order flow and transaction bundles, manage relay submission paths, and ensure stable performance under real-time load. Your work will include building and refining observability platforms, conducting controlled A/B experiments, and driving reliability improvements such as panic mitigation and latency regression detection. As you ramp, you will contribute to optimization-driven block building logic, on-chain intrablock lending protocols, and an execution extension, gaining autonomy and deep technical ownership across the core stack.

Key Responsibilities:

- Integrate and process order-flow ingestion, bundle and transaction handling, back-pressure management, and reintegration of data for block inputs.

- Develop and maintain relay submission paths to ensure end-to-end block delivery under production load.

- Build and enhance telemetry and dashboards using Grafana, Prometheus, Loki and SQL to provide trusted observability.

- Diagnose and correct measurement issues—broken counters, misleading dashboards, and erroneous denominators—to maintain metric accuracy.

- Design, execute and analyze controlled A/B experiments in production, reporting findings objectively, including inconclusive results.

- Identify and resolve system panics, dropped messages, and latency regressions, with automated tests to prevent recurrence.

- Optimize data pipelines and processing systems for high-throughput, low-latency performance.

- Contribute to the development of intrablock lending protocols and associated trusted-execution components.

- Collaborate on an execution extension (BEX) and future protocol and exchange-layer enhancements.

Required Competence and Skills:

- 2–4 years of professional software engineering experience shipping and operating production systems.

- Minimum 2 years working on Ethereum or other EVM-compatible blockchains.

- Proficiency in Rust or strong systems experience in Go, C++ or Java with eagerness to adopt Rust.

- Solid understanding of concurrent and real-time code within large, existing codebases.

- Strong SQL skills and practical experience with Python for data analysis and tooling.

- Familiarity with monitoring and analytics tooling and a drive to ensure metric correctness.

- Rigorous engineering habits, including comprehensive testing and clear distinction between verified and assumed behavior.

- Data-driven mindset with a habit of querying logs and databases to validate change impact.

Nice to Have:

- Exposure to Ethereum block-building protocols (PBS/MEV), smart contract interactions, or trading systems.

- Experience with high-throughput data pipelines, time-series databases, or large-scale analytics.

- Familiarity with Ethereum client internals (reth, geth, revm) or deploying services on Kubernetes and Docker.

Why Us:

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

About the Product & Team

Our client is an innovative, fast-growing tech startup developing a next-generation AI agent for autonomous browser and web workflow automation. The platform leverages modern LLMs to dynamically inspect web interfaces, generate resilient Playwright automation scripts, and execute complex, repetitive browser tasks for businesses across the US.

• This is a new area within the scope of software engineering, but we believe the current positions will be suitable for Automation QA professionals. 

You will be joining a lean, engineering-driven team where your work directly shapes the core AI product, solves real-world customer automation challenges, and drives the adoption of agentic AI systems.

Role Overview

We are seeking a proactive Forward Deployed Engineer to help international clients integrate, optimize, and scale this AI-driven browser automation agent. In this role, you will sit at the intersection of customer-facing technical integrations, prompt engineering, and script troubleshooting.

You will collaborate closely with the CTO to onboard new users, monitor agent execution, refine daily system prompts, and fine-tune generated automation scripts to ensure maximum reliability for end-user workflows.

Key Responsibilities

• Client Onboarding & Integrations: Guide clients through workflow setups, analyze their business processes, and troubleshoot integration bottlenecks (transitioning from async ticket analysis to leading live customer calls).
• AI Agent Optimization & Prompting: Daily monitoring of agent performance, identifying edge cases, and engineering/adjusting prompts to improve output accuracy.
• Script & Locator Troubleshooting: Review, debug, and manually adjust agent-generated Playwright automation scripts when complex dynamic web elements or DOM changes occur.
• Codebase Maintenance: Contribute to maintaining JavaScript-based core modules and supporting integration tools (~20–30% of total workload).
• Feedback Loop: Act as the technical bridge between customer workflows and product development to drive platform improvements.

Requirements

• Communication: C1 / Fluent English with confident verbal presentation skills and comfort leading live video calls with US/EU clients.
• AI & LLM Proficiency: Strong hands-on experience with LLMs, practical prompt engineering, and AI tools for debugging and automating workflows.
• Web Fundamentals: Solid understanding of the DOM tree, dynamic web elements, XPath, and CSS selectors.
• Technical Skills: Practical ability to read, understand, and debug JavaScript / TypeScript code.
• Time Flexibility: Ability to comfortably handle team and client calls during late afternoon/evening hours (up to 20:00–21:00 Kyiv time).

Nice to Have

• Hands-on experience with browser automation frameworks (Playwright).
• Background in QA Automation, Solutions Engineering, Technical Support (Tier 3), or Technical Customer Success.
• Familiarity with LLM function calling, structured outputs, or agentic workflows.

We OFFER:

• ​A fast-paced, highly professional, international team environment with a flat structure and rapid decision-making.
• ​Competitive compensation packages commensurate with your background and product portfolio.
• ​Flexible, remote-first workflow optimized for seamless global alignment.
• Medical Insurance in Ukraine and a Multisport program in Poland.
• Offices in Ukraine (Kyiv, Kharkiv) and Poland (Wroclaw) or Remote.
• Paid vacation, sick leave, and official holidays.
• Legal & Accounting services.
• The company provides all necessary equipment.
• English classes and Education reimbursement.

🚀 Join Our Team as a Manual QA Engineer!
We are looking for a proactive and detail-oriented Manual QA Engineer to join our team and help ensure the quality of our web and mobile products. This role requires a high level of ownership, independence, and strong communication skills, as you will be the primary QA specialist on the project, working closely with developers and the Product Owner.

REQUIREMENTS:

• 1+ year of commercial experience in manual software testing.
• Upper-Intermediate English with the ability to communicate confidently and understand native speakers – MUST.
• Strong STLC knowledge, test design techniques, and experience with various testing types (functional, regression, exploratory, integration)
• Experience testing web and iOS applications.
• Experience with cross-browser and cross-platform testing.
• Understanding of release and upgrade testing processes.
• Strong knowledge of Chrome DevTools (Console, Network, Storage, Service Workers).
• Experience with TestFlight and basic familiarity with Xcode.
• Experience testing browser extensions - nice to have.
• Basic knowledge of MySQL.
• Ability to create clear test documentation (test cases, checklists, bug reports).
• Experience with Jira, Qase, or similar QA tools.
• Strong analytical, problem-solving, and communication skills.
• Ability to work independently, clarify requirements, and identify risks proactively.

RESPONSIBILITIES:
 

• Own the QA process for the project and act as the primary quality advocate within the team.
• Analyze requirements and proactively identify ambiguities, risks, and edge cases.
• Collaborate closely with developers and the Product Owner, participate actively in team meetings, planning session to ensure high product quality.
• Create, maintain, and execute test cases, checklists, and test plans.
• Perform functional, regression, exploratory, and integration testing.
• Test web applications, browser extensions, and iOS mobile applications.
• Validate new features, release candidates, and upgrade flows.
• Investigate issues using Chrome DevTools, Service Worker tools, Xcode, and other debugging utilities.
• Continuously improve QA processes and contribute to product quality initiatives.
   

WHAT WE OFFER:

• Full-time remote position with stability and career growth opportunities.
• Ukrainian holidays off, plus paid vacation and sick leave.
• Compensation for English courses and sports activities.
• Access to an in-house English-speaking club.
• Accounting support and a proactive work environment.
• Engaging corporate events and team-building activities.
   

How to Apply:
If you enjoy taking ownership, working closely with product and engineering teams, and making independent decisions that directly impact product quality, we'd love to hear from you. Please submit your resume and tell us why you'd be a great fit for this role.



 

We're looking for an experienced Chief Billing Officer to lead our PSP strategy.

Responsibilities

- Lead and develop the Billing/Payments function across the business group.

- Define and execute the PSP strategy across multiple markets, including provider selection, onboarding, payment method development, and integration roadmap execution.

- Build KPI, reporting, and monitoring frameworks covering PSP performance, payment conversion, availability, liquidity, and operational efficiency.

- Optimize payment flows by improving conversion, UX, payment stability, and reducing user-facing issues.

- Partner with engineering teams to define business requirements, prioritize initiatives, and ensure high-quality delivery.

- Manage relationships with PSPs and oversee payment operations, risk management, and service performance.

- Lead the Billing department (PSP, Monitoring, Business Analysis, Liquidity, Key Account), driving team performance, process improvements, and automation.

- Audit existing payment processes, identify bottlenecks, and implement scalable operational improvements.

Requirements

- Proven experience in Billing, Payments, or PSP within the iGaming industry.

- Strong understanding of payment infrastructure, including PSPs, payment methods, integrations, conversion optimization, monitoring, payment errors, balances, liquidity management, and payment method stability.

- Experience working with complex markets, preferably CIS and/or emerging markets, where rapid adaptation and continuous payment solution development are required.

- Experience leading teams and building operational processes, including KPIs, reporting, SLAs, prioritization, and performance management.

- Ability to work effectively with engineering teams by defining business requirements, managing backlogs, and overseeing implementation quality and timelines.

- Strong analytical skills with a data-driven approach to decision-making.

- Highly organized and structured, with the ability to deliver quality results in a fast-paced environment while maintaining a high level of ownership and professionalism.

- English proficiency at B2 level or higher.
 

Our benefits to you:

☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

💵Referral program — enjoy cooperation with your colleagues and get the bonus

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location

What You'll Do

• Administer, maintain, and troubleshoot Linux servers.
• Configure, upgrade, and optimize server infrastructure.
• Monitor server performance, availability, and overall health.
• Administer and maintain Nginx and/or Apache web servers.
• Configure backup solutions and participate in disaster recovery planning and implementation.
• Automate routine administrative tasks using Bash and other automation tools.

Moodle LMS Administration

• Install, configure, upgrade, and maintain Moodle LMS.
• Manage plugins, themes, and integrations.
• Monitor performance and troubleshoot application issues.

AWS Infrastructure

Work with:

• Amazon EC2
• Amazon Aurora Serverless
• Amazon RDS Proxy
• Amazon CloudWatch
• IAM, Security Groups, and AWS Secrets Manager

Database Administration

• Administer and maintain MySQL databases.

Cloudflare Administration

Configure and maintain:

• DNS
• CDN
• SSL/TLS
• Web Application Firewall (WAF)
• DDoS Protection
• Zero Trust

WordPress Administration

• Install, maintain, secure, and optimize WordPress websites.

Linux Security

• Perform Linux server hardening.
• Configure and maintain SSH security.
• Configure and manage Fail2Ban.
• Manage firewall rules.
• Ensure timely security patching and system updates.

Documentation

• Create and maintain technical documentation, infrastructure diagrams, and operational documentation.

Requirements

• 5+ years of Linux system administration experience.
• Experience administering enterprise Linux environments.
• Hands-on experience administering Moodle LMS.
• Experience working with AWS.
• Experience administering MySQL databases.
• Experience configuring and managing Cloudflare.
• Experience administering WordPress websites.
• Experience with Nginx and/or Apache.
• Experience managing SSL certificates and DNS.
• Strong knowledge of Linux security and server hardening.
• Experience writing Bash scripts.
• Strong troubleshooting and problem-solving skills.
• English level Upper-Intermediate (B2) or higher (both written and spoken).

Nice to Have

• Bachelor's degree in Computer Science, Information Technology, or equivalent professional experience.
• Experience writing and maintaining technical documentation.
• Experience supporting high-availability or high-load production environments.

What We Offer

• Fully remote position.
• Salary: USD 2,500–3,700 DOE (Depending on Experience).
• Opportunity to work on a long-term product.
• The opportunity to help shape and improve our infrastructure while implementing new technologies.
• Small, collaborative team with a high level of ownership and autonomy.
• Working hours aligned with Pacific Time (US).
• Participation in an on-call rotation.

Important

This role requires working during US Pacific Time (PT) business hours and participating in an on-call rotation.

When applying, please include a short cover letter in English confirming:

• Your willingness to work during US Pacific Time hours.
• Your willingness to participate in the on-call rotation.
• Your English proficiency level.
• Your ability to communicate confidently in English, both verbally and in writing.

Please note: This position requires English proficiency at Upper-Intermediate (B2) level or higher, as you will regularly communicate with English-speaking colleagues, participate in meetings, and prepare technical documentation.

Who We Are

PAR Retail, with its Open Commerce® product suite and patent pending Wallet Steering® System, empowers Convenience & Fuel Retailers to gain more share of wallet and customer lifetime value than possible with any other solution provider. PAR Retail’s unified Open Commerce product suite consists of: Activate for Intelligent 1:1 Loyalty, Transact for Contactless Commerce, and Experience for Cross-Channel Customer Experiences. PAR Retail’s solutions are supported by a set of subscription-based program management services and are contractually backed by its 1.5X Performance Guarantee.

Technology Stack:

Ruby, Ruby on Rails, Postgres, Redis, Sidekiq, GraphQl, RabbitMQ

Requirements:

- Practical experience building systems in Ruby on Rails

- At least 6 years industry experience or equivalent

- Experience building and maintaining backend APIs, including design, implementation, evolution, and maintenance

- Familiarity with TypeScript, or similar modern strongly-typed language

- Proficiency using a variety of database technologies, both relational and non-relational

- Strong understanding and familiarity with CI/CD pipelines and automated tests

- An ability to work in service-based architectures as well as well-factored Rails monolith applications

- Highly independent and able to effectively self-organize and prioritize work

- The ability to write clean code, and the discipline to write effective automated tests to deliver high-quality system improvements

- An ability to effectively break down larger bodies of work for delivery as a series of small, self-contained changes to the system

- Excellent spoken and written communication skills

- BS/MS degree in Computer Science, Engineering, or equivalent years of professional working experience

Bonus Points

- Experience with NodeJS and React

- Experience in the retail and/or fuel & convenience industries

- Experience working in distributed teams

- Experience with Nest.js and/or GraphQL

Responsibilities:

- Collaborate closely with other Engineers, design and implement new functionality based on product objectives and requirements.

- Work with the broader product engineering team to plan and coordinate feature and functionality improvements, as well as resolve bugs and execute technical enhancements, that cross-cut large parts of our platform.

- Work to continually learn, improve technology skills, expand knowledge of the our platform technologies, and gain increasing versatility across the breadth of our platform systems.

- Expand APIs and business logic, and as needed write or revise customer-facing API documentation.

- Work with our infrastructure team to enable and enhance highly-available, performant, and well-instrumented backend applications and services that run in our customer environments at substantial scale.

- Support operations and infrastructure teams for issue resolution on relevant applications or services running in production environments.

PAR Retail Offers:

- Long-term employment;

- Competitive compensation with regular performance-based salary and career development reviews;

- Paid vacations and sick leaves;

- Flexible working hours;

- A unique and friendly environment where everyone can explore and learn new technologies.

Codefinity is a fast-growing EdTech company on a mission to make tech education accessible, engaging and truly practical. We help people from all over the world master in-demand programming skills and build meaningful careers in tech.

Our platform has already empowered hundreds of thousands of learners globally — from complete beginners to industry professionals — through interactive, hands-on courses designed to accelerate real skill growth.

This isn’t a position where you support creatives and write briefs for designers.

This is an opportunity to become one of the first key people in the project and build the Creative Marketing function practically from scratch — from finding new creative angles and building testing processes to forming your own team. As the company grows, you’ll have the opportunity to grow into Creative Marketing Lead.

If you’re interested not just in creating creatives, but in building a system that determines the growth rate of the entire business — this role is for you.

Your responsibilities:

• Building creative strategy for scaling Meta and other advertising channels.
• Generating, testing, and scaling new creative angles, concepts, storylines, and advertising approaches.
• Building a continuous creative testing system: from insight analysis to the production pipeline.
• Managing the full creative production cycle: setting tasks for graphic and motion designers.
• Analyzing creative performance together with the UA team and making data-driven decisions.
• Ongoing analysis of competitors, ad libraries, trends, and best practices in mobile subscription products.
• Working with the product team to find new advertising hooks and improve conversion.

• Building and developing your own Creative Marketing team.

   

Who we’re looking for:

• 2–5+ years of experience in Creative Marketing, Creative Strategy, or User Acquisition.
• Experience creating and scaling advertising creatives for Meta.
• Deep understanding of why advertising creatives work or don’t work.
• Experience building hypothesis testing processes and fast iteration.
• Ability to work with creative analytics and make data-driven decisions.
• Strong sense of marketing, storytelling, and user psychology.

• Entrepreneurial mindset and a desire to build a function, not just execute tasks.

   

Nice to have:

• Experience working in subscription products.
• Understanding of how different product monetization models work and how content affects engagement and retention.

• Experience working with AI tools for photo/video generation and creative production automation.

   

Benefits

• Work on a high-impact EdTech product within an ambitious global team
• 20 working days of paid vacation per year, plus public holidays.
• An office with a reliable shelter, generators, satellite internet, and other amenities.
• Access to our corporate knowledge base and professional communities.
• Compensation for English language learning, external training, and courses.
• Medical insurance and full sick leave compensation.
• In-office medical support and professional massage services
• Sports activities: running, yoga, boxing, and more.

Important: after confirming your application on this platform, you’ll receive an email with the next step: completing your application on our internal site, LaunchPod. So keep an eye on your inbox and don’t miss this step — without it, the process can’t move forward.

Why join us

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :)

About the role

We are looking for a ServiceNow Discovery Engineer to join an enterprise-scale Discovery Engineering squad that executes discovery across millions of infrastructure targets on daily and weekly schedules. You will design and build AI agents that analyze Discovery logs, classify failures, identify root causes, and generate corrections to Discovery probes and patterns with appropriate testing guardrails, while also developing observability agents that continuously assess MID Server health, throughput, and coverage. The role requires 4+ years of hands-on ServiceNow Discovery experience including MID Servers, Patterns/Probes, and CMDB/CSDM data quality.

What you will do

• Continuously assess the health of the ServiceNow Discovery ecosystem, including MID Servers, discovery schedules/playbooks, target execution, throughput, latency, failures, retries, and discovery coverage.
• Convert operational knowledge, runbooks, and recurring troubleshooting procedures into structured, documented workflows, progressively enabling the engineering team to reduce manual investigation.
• Regularly collect, aggregate, and interpret metrics and telemetry from ServiceNow Discovery, logs, and monitoring platforms to turn them into actionable engineering improvements.
• Investigate complex infrastructure attributes and relationships to ensure data quality and successful discovery execution.

Must haves

• Hands-on experience with ServiceNow Discovery, including MID Servers, Discovery Patterns/Probes, credentials, schedules, Discovery Status, ECC Queue, and troubleshooting Discovery failures.
• Experience developing or modifying ServiceNow Discovery Patterns and Probes and understanding how infrastructure attributes and relationships are discovered.
• Experience with ServiceNow CMDB/CSDM, Configuration Items (CIs), identification/reconciliation, relationships, and CMDB data quality.
• Practical knowledge of Infrastructure Engineering with Linux, Windows Server, compute, virtualization/cloud infrastructure, authentication, processes/services, and infrastructure troubleshooting.
• Working knowledge of TCP/IP, DNS, routing, firewalls, ports, SSH, WMI/WinRM, SNMP, HTTP/S, and common network and infrastructure troubleshooting techniques.
• Experience with observability technologies such as Prometheus, OpenTelemetry, alongside Grafana.
• Upper-intermediate English level.

Nice to haves

• Basic scripting experience (e.g., Python, JavaScript) to assist in automation tasks.
• Familiarity working in Agile squads alongside software developers.

The benefits of joining us

• Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps
• Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities
• A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands
• Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive.

Meet Our Recruitment Process

Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback:

• Short online form to confirm basic requirements
• 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process.
• 5-minute introduction video

Synchronous stage – Live interviews

• Technical interview with our engineering team (scheduled at your convenience)
• Final interview with your future teammates

If it’s a match — you’ll get an offer!

We’re looking for a Senior Full-Stack Engineer / System Architect for a Vienna-based SaaS company on a mission to help organizations unleash their leadership potential — through digital feedback workflows, OKRs, mentoring, and people analytics that support managers at every level. 

The Role

We're hiring a hands-on Full Stack System Architect to lead architecture for our enterprise AI SaaS platform — spanning Angular, TypeScript, Python, Node.js, cloud infrastructure, and AI/LLM integration. The product combines agentic AI workflows with precision AI tools for people analytics, leadership development, and performance management.

This is not a management role. Our six-person remote team (four full-time, spanning Austria and India) is close-knit, well-organized, and doesn't need another layer of hierarchy. We need a technical peer — a "shark in the pond" — senior enough to challenge, mentor, and upskill the team through hands-on delivery, not authority.

What You'll Do

• Own system architecture for a scalable, enterprise-grade AI SaaS platform
• Architect across the stack: Angular/TypeScript frontend, Python/Node.js backend
• Design and ship AI/LLM integrations in production, including agentic workflows
• Take direct ownership of project streams and sprints
• Expand the team's use of AI-assisted tooling (we currently use Claude for coding and design)
• Mentor and gently challenge the team, raising standards without disrupting trust
• Manage infrastructure: cloud, CI/CD, Docker, Kubernetes, Terraform

What We're Looking For

• Proven scalable SaaS system architecture experience
• Strong Angular + TypeScript and Python + Node.js expertise
• Track record integrating AI/LLMs into production
• Solid cloud, CI/CD, Docker, Kubernetes, Terraform skills
• Strong technical leadership with genuine hands-on delivery — a senior IC, not a manager
• A collaborator who values cultural fit and trust, and can integrate into an established remote team rather than restructure it
• Nice-to-have: HR-tech / people-analytics domain experience; experience mentoring engineers remotely

Practical Details

• Full-time, flexible start 7:00–10:00 AM Vienna time
• Fully remote — anywhere in Europe or safe zones in Ukraine
• Full GDPR compliance, VPN and two-factor authentication required
• Joining a 6-person engineering team led by a strong 26-year-old lead engineer

Equal opportunity — we welcome applicants of all genders and backgrounds; our engineering team is currently male-dominated and we're working to change that.

We are looking for an experienced and data-driven Product Manager to join our team and lead the development and optimization of our website growth strategy. In this role, you will drive conversion, improve user journeys, lead data-driven experiments, and identify high-impact opportunities across the funnel. Working closely with marketing, product, design, SEO, and engineering teams, you will help turn user insights into measurable business growth while building a culture of continuous experimentation and performance improvement.

Responsibilities

• Develop and own the website growth strategy and roadmap, aligning initiatives with product and marketing goals
• Identify opportunities to increase conversion from visit to registration through analysis of user behavior and funnel performance
• Detect friction points in the registration flow and implement solutions to improve completion rates
• Plan, launch, and analyze continuous A/B tests and growth experiments to validate hypotheses and improve key metrics
• Optimize landing pages, onboarding flows, and overall user journeys to improve engagement and conversion
• Implement and monitor technical SEO improvements to increase organic visibility and site discoverability
• Improve page speed, site performance, and overall technical health of the website in collaboration with engineering teams
• Analyze behavioral data, user sessions, and funnel drop-offs to identify actionable insights
• Work closely with marketing, SEO, design, product, and engineering teams (to implement growth initiatives)
• Build a data-driven experimentation culture

Requirements

• 3+ years of experience as a Product Manager
• Experience working on web products or growth funnels
• Strong analytical and data-driven mindset
• Strong understanding of UI/UX principles and conversion-oriented design.
• Experience improving conversion funnels
• Experience running A/B tests or experimentation programs
• Understanding of SEO fundamentals
• Experience working with web analytics tools
• Ability to identify user behavior patterns and growth opportunities

• Strong ownership and ability to drive initiatives end-to-end

   

Will be a plus

• Experience in fintech, trading, or crypto
• Experience with high-traffic B2C websites
• Understanding of technical SEO
• Experience improving website performance and page speed 

We offer

• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget

• Wellness budget (gym membership, sports gear and related expenses)

   

Join our team to realize your potential and grow together with JustMarkets!

📍 Location: Remote

🤝 Engagement: Full-time, long-term project for an international product client

💬 English: B2+

🎯 Level: Senior
 

About the Opportunity

We are looking for a Senior Web Scraping / Data Collection Engineer to join an international product project.

The project is already in development. The client is currently strengthening the data collection / web scraping direction and is looking for an engineer who can take ownership of the existing scraping work and continue developing it.

The main goal is to build a modern and scalable data collection system capable of extracting structured data from various community, hobbyist, and other public websites.

The system should primarily collect structured information about locations, including:

• Name
• Address
• Additional information available on the source
• Sentiment and user opinions

The client plans to use Crawl4AI together with LLMs to handle complex and dynamic content and enable intelligent data extraction.

What You'll Be Doing

• Develop custom scrapers using Crawl4AI.
• Extract structured data from various websites.
• Work with complex and dynamic web content.
• Implement advanced extraction strategies using Pydantic schemas, CSS selectors, and LLM-based parsing.
• Produce structured JSON / Markdown data optimized for further LLM processing.
• Extract basic location data such as names and addresses.
• Extract all available information about locations when additional data is provided by the source.
• Develop approaches for extracting sentiment from user opinions and discussions.
• Transform different opinions about a location into structured data that can be used for further processing and analytics.
• Work with different types of sources, including:
  • Community websites
  • Hobbyist websites
  • Blogs
  • Social media communities and groups
• Work with websites using sophisticated access restrictions, including age gates, CAPTCHAs, and IP rate limits.
• Use session persistence and browser fingerprinting to improve scraping success rates on challenging sources.
• Deliver clean and deduplicated data.
• Produce results in CSV or database-ready formats.
• Optionally contribute to a web interface that allows users to:
  • Enter URLs
  • Configure scraping settings
  • Adjust stealth mode
  • Set crawl depth
  • Add extraction instructions
  • Monitor scraping results

Data Structure

At a basic level, the system should be able to return location data in a simple structured format:

[

 {

   "name": "place1",

   "address": "address1"

 },

 {

   "name": "place2",

   "address": "address2"

 }

]

If a source contains more information, the system should be able to return additional fields in a consistent JSON format.

The system should also support extracting sentiment-related information.

For example, if 6 people mention that they loved a location, 2 consider it average, and 2 disliked it, this information should be structured in a way that can be used for further processing and analytics.

The exact sentiment format can be flexible, but consistent JSON is preferred.

What We're Looking For

• Commercial experience in Web Scraping / Web Crawling / Data Extraction.
• Strong Python skills.
• Hands-on experience working with dynamic and complex websites.
• Experience with browser automation.
• Good understanding of HTML / DOM and CSS selectors.
• Experience developing custom scrapers.
• Experience working with structured data and JSON.
• Experience with Pydantic or similar schema-based approaches.
• Understanding of LLM-based data extraction.
• Experience with session persistence and browser fingerprinting.
• Understanding of CAPTCHA, age gates, and IP rate limits.
• Ability to independently understand an existing scraping solution and continue developing it.
• English B2+.

Nice to Have

• Practical experience with Crawl4AI.
• Experience integrating Crawl4AI with LLMs.
• Experience with Playwright, Selenium, or similar tools.
• Experience with LLM-based parsing / information extraction.
• Experience with sentiment analysis / NLP.
• Experience collecting data from social media communities, blogs, and other user-generated sources.
• Experience building lightweight web interfaces for managing scraping jobs.

Who You Are

We are looking for an engineer who can independently take ownership of the scraping direction, understand the existing solution, and continue developing it.

It is important to be able not only to crawl pages, but to extract high-quality, structured, and usable data from them.

Strong practical experience with dynamic websites, browser automation, complex scraping scenarios, and structured data extraction is especially important.

What We Offer

• 🌍  Remote work.
• 📄  Full-time, long-term project.
• 🚀 Work on an existing international product.
• 🧠 Opportunity to take ownership of a dedicated technical direction.
• 💼 Work with Crawl4AI, LLMs, and modern data extraction approaches.
• 🤝 Direct collaboration with the client team.
• 📈 Opportunity to influence the technical solution and further development of the data collection system.

Hiring Process

1. Recruiter Screening

2. Client Interview (A technical interview with the client team focused on your practical experience, approach to complex scraping challenges, work with dynamic websites, and structured data extraction)

3. Offer 🎉