Jobs

We're building a greenfield high-load media platform from scratch, allowing you to shape the architecture, choose the technology stack, and make key engineering decisions from the very beginning. This isn't about maintaining legacy systems—it's about designing and delivering scalable solutions that will evolve from PoC into production

You'll tackle complex engineering challenges around WebRTC, low-latency streaming, SFU/TURN infrastructure, and scaling the platform to 300,000 concurrent connections and 3M+ requests per second. As part of a small, highly skilled team, you'll have real ownership, fast decision-making, and the chance to build rare, highly valued expertise while making a visible impact on the product

In this role, you will

• Design and build the infrastructure for a greenfield streaming/WebRTC platform, ensuring scalability, low latency, and high availability
• Develop and maintain CI/CD pipelines and deployment strategies to support fast and reliable releases
• Manage cloud infrastructure and Kubernetes clusters using Infrastructure as Code tools
• Implement autoscaling, performance optimization, and load testing to ensure the platform can handle high traffic and peak loads
• Build and improve the platform's observability by implementing monitoring, logging, tracing, and alerting solutions
• Optimize infrastructure for performance, reliability, security, and cost efficiency
• Collaborate closely with backend engineers and product teams, contributing to architectural decisions and the evolution of the platform

It’s all about you

• 3+ years of experience as a DevOps Engineer in production environments
• Experience designing and building high-load infrastructure from scratch
• Hands-on experience with streaming, WebRTC, or social/multimedia products
• Production experience with Kubernetes, including scaling, autoscaling, and troubleshooting
• Expertise in Infrastructure as Code using Terraform and/or Ansible
• Experience with AWS or GCP, including compute, networking, and managed services
• Experience building CI/CD pipelines using GitLab CI or GitHub Actions, along with GitOps tools such as ArgoCD and Helm
• Knowledge of observability tools, including Prometheus, Grafana, logging, and distributed tracing
• Strong networking fundamentals, including UDP, RTP/RTCP, low-latency networking, and TURN/STUN (coturn)
• Experience with load testing and performance optimization for high-traffic production systems

Would be a plus

• Experience with media servers, such as mediasoup, LiveKit, Janus, or Jitsi
• Experience optimizing bandwidth-heavy streaming platforms and improving infrastructure cost efficiency
• Proficiency in scripting with Python, Go, or Bash

What we offer

Care and support: 

• 20 paid vacation days, 15 sick leave days, and 6 additional days off for family events
• 100% medical insurance coverage
• Sports and equipment reimbursement
• Team building events, corporate gifts, and stylish merch
• Financial and legal support
• Maternity Recovery Support Allowance
• Position retention and support for those who join the Armed Forces of Ukraine
• Participation in social initiatives supporting Ukraine

Comfortable working environment:

• Work from our Kyiv hub or remotely with a flexible schedule
• Modern equipment or depreciation of your own tools

Investment in your future:

• Collaborate with a highly-skilled team of Middle & Senior professionals, sharing practical cases and expertise in the social networking niche
• 70% of our heads and leads have grown into their roles here – so can you!
• Performance-oriented reviews and Individual Development Plans (IDPs)
• Reimbursement for professional courses and English classes
• Corporate library, book club, and knowledge-sharing events

Hiring process

• Intro call
• Technical Interview
• Final Interview
• Reference check 
• Offer
   

Key Responsibilities:

• Spearhead jurisdictional due diligence programs across our licensed markets, ensuring end-to-end regulatory alignment and proactive risk mitigation.
• Draft, negotiate, and close complex commercial agreements, securing optimal terms while safeguarding the group’s legal position.
• Architect and maintain corporate-governance frameworks, advising leadership on strategic risk and policy optimisation.
• Partner with Compliance, Product, and Business verticals to align legal insights with commercial objectives and product roadmaps.
• Monitor and interpret evolving regulation, trends, and best practice, translating insights into actionable guidance for the executive team.

• Provide ad-hoc counsel on emerging matters to enable rapid, compliant decision-making.

   

Requirements:

• LLB / LLM (or equivalent).
• 3+ years PQE, including 2+ years in iGaming (must have).
• Proven ability to navigate multi-jurisdictional frameworks and deliver practical, business-centric solutions.
• Excellence in contract drafting, negotiation, and stakeholder communication.
• Meticulous, proactive, and results-driven with strong organisational skills and ethical standards.

What We Offer:

• Quarterly bonuses.
• Hybrid work & flexible schedule.
• Medical insurance (for you +1) & financial support for special events.
• Professional development reimbursement & online English classes.
• Employee referral bonus program.

The product we are working on is the biggest community-based navigation app, complex web services, and other solutions related to it. The web and mobile apps handle information at a massive scale and extend well beyond the search giving people and companies a lot of new useful options. Here you’ll be a part of a skilled international team, working on an app with >100 mln users!

As a Head of QA, you will lead a distributed Quality Engineering organization of approximately 50 engineers across multiple teams. You will define the QA strategy, drive operational excellence, lead AI-driven quality initiatives, and continuously improve quality engineering practices across the organization. Working closely with QA Leads, Engineering, Product, and Delivery teams, you will play a key role in scaling quality and engineering excellence.

Responsibilities

• Define and execute the QA strategy aligned with business and engineering objectives.
• Lead, mentor, and develop a distributed QA organization, including QA Leads and Quality Engineers.
• Drive continuous improvement of QA processes, testing methodologies, operational efficiency, and testing cycle time.
• Establish and enforce QA standards, quality metrics, KPIs, OKRs, and engineering best practices across teams.
• Lead the adoption of AI-powered testing solutions, automation technologies, and modern QA tools while driving AI capability across the organization.
• Define and execute scalable quality engineering and automation strategies across multiple products and teams.
• Partner with Engineering, Product, and Delivery leadership to ensure high-quality software releases, manage quality risks, and provide strategic guidance on quality initiatives.
• Act as the primary escalation point for complex technical, organizational, and quality-related challenges.
• Own the QA hiring strategy, talent development, succession planning, and organizational growth.

• Foster a culture of innovation, accountability, continuous learning, and engineering excellence by identifying and implementing new processes and AI-driven improvements.

   

Requirements

• Location in Warsaw (office-based role)
• 8+ years of experience in Software Quality Assurance.
• 4+ years of experience leading QA teams in a product environment.
• Proven experience managing large QA organizations (20+ engineers), including QA Leads.
• Experience defining QA strategy, organizational standards, KPIs, and scalable quality processes.
• Strong experience driving process optimization and operational excellence across QA organizations.
• Experience defining and executing test strategies and modern Quality Engineering practices.
• Good understanding of AI applications in software testing and a track record of evaluating or adopting AI-driven solutions to improve QA processes.
• Deep understanding of SDLC, Agile methodologies, CI/CD, and software testing best practices.
• Strong leadership, stakeholder management, communication, and decision-making skills.
• Fluent English (C1/C2 level).
• Fluent Ukrainian (C1/C2 level).

Nice to Have

• Hands-on experience with test automation frameworks and QA architecture.
• Experience validating AI-based products or LLM-powered applications.
• Experience with cloud platforms and distributed systems.
• Performance, security, or reliability testing experience.
• ISTQB certification or equivalent.

We Offer

• Opportunity to work on a global product used by 100+ million users worldwide.
• Competitive compensation package, including 20 paid vacation days and paid sick leave.
• Full-time office-based work (5 days per week) in a modern, comfortable office in Warsaw.
• Flexible working hours with a healthy work-life balance.
• Private medical insurance.
• English classes with a native speaker and wellness activities, including online yoga.
• Paid tech training and other activities for professional growth;
• Modern, comfortable office and a friendly, supportive engineering culture.

About the Company

We are a fast-growing international FinTech company providing reliable, scalable, and secure payment solutions to businesses across multiple markets.

As the company continues to expand, we are looking for a Chief Revenue Officer who will take ownership of the company’s commercial growth strategy and build a predictable, scalable revenue engine.

This role is ideal for a commercially driven leader with strong experience across Business Development, Sales, Partnerships, Account Management, and revenue operations. The successful candidate will combine strategic thinking with hands-on execution and will work closely with the CEO and executive team to accelerate growth across international markets.

Role Mission

Build and lead a unified commercial strategy that drives sustainable revenue growth, strengthens the company’s market position, expands strategic partnerships, and creates predictable and scalable revenue channels.

The CRO will align Business Development, Sales, Partnerships, Account Management, and commercial operations around clear targets, ownership, and measurable business results.

Key Responsibilities

• Develop and execute the company’s global revenue and commercial growth strategy.
• Take ownership of revenue growth across Business Development, Sales, Partnerships, and Account Management.
• Identify and prioritize new markets, customer segments, verticals, and commercial opportunities.
• Build a predictable and scalable revenue pipeline across international markets.
• Establish clear revenue targets, commercial KPIs, forecasting models, and reporting frameworks.
• Lead enterprise-level negotiations with strategic clients, merchants, banks, payment providers, and technology partners.
• Build and strengthen relationships with key industry stakeholders and strategic partners.
• Develop commercial models, pricing approaches, partnership structures, and go-to-market strategies.
• Improve conversion across the complete commercial funnel, from lead generation to onboarding, activation, and account growth.
• Introduce structured pipeline management, deal qualification, forecasting, and performance review processes.
• Ensure transparent ownership and accountability across all revenue-generating functions.
• Partner closely with Product, Operations, Finance, Legal, Compliance, Risk, and Support teams to ensure commercial commitments can be delivered effectively.
• Work with Product leadership to translate market demand and client feedback into product development priorities.
• Analyze unit economics, revenue quality, profitability, client acquisition costs, retention, and account performance.
• Identify underperforming revenue channels and implement corrective actions.
• Build, mentor, and scale a high-performing commercial leadership team.
• Represent the company at relevant conferences, industry events, strategic meetings, and partnership discussions.
• Support the CEO and executive team in strategic planning, market expansion, and long-term business development.

Requirements

• 10+ years of experience in Business Development, Sales, Partnerships, Commercial, Revenue, or related functions.
• 4+ years of experience in a senior leadership role such as CRO, Chief Commercial Officer, CBDO, VP of Sales, Commercial Director, or equivalent.
• Proven track record of delivering significant and sustainable revenue growth.
• Strong experience building and scaling commercial teams and revenue processes.
• Deep understanding of enterprise sales, strategic partnerships, and complex commercial negotiations.
• Strong professional network within FinTech, Payments, Banking, E-commerce, SaaS, or related industries.
• Experience working with international clients, merchants, financial institutions, and strategic partners.
• Strong understanding of revenue forecasting, pipeline management, pricing, unit economics, and commercial performance.
• Ability to connect commercial strategy with product capabilities and operational execution.
• Strong analytical mindset and experience making decisions based on commercial data.
• Excellent leadership, stakeholder management, negotiation, and executive communication skills.
• Strategic mindset combined with a hands-on and execution-focused approach.
• Experience working in fast-growing, international, or highly regulated organizations.
• Fluent English.

Success in the First 90 Days

• The company’s commercial structure, revenue streams, pipeline, and market opportunities are fully assessed.
• A clear revenue growth strategy and commercial roadmap are presented to the CEO and leadership team.
• Revenue ownership, targets, KPIs, and accountability are established across commercial functions.
• A transparent pipeline management and revenue forecasting framework is implemented.
• Current clients, strategic partners, and commercial opportunities are prioritized.
• Key gaps in Sales, Business Development, Partnerships, and Account Management are identified.
• Commercial reporting and regular revenue performance reviews are running effectively.
• Short-term opportunities for revenue growth and account expansion are identified and activated.
• Collaboration between Commercial, Product, Operations, Finance, Compliance, and Support is improved.
• A clear plan for scaling the commercial team and entering priority markets is in place.

What We Are Looking For

We are not looking for a traditional Sales Director focused only on closing individual deals.

We are looking for a commercial builder who can create a complete and scalable revenue system, align teams around common targets, strengthen the company’s market position, and turn strategic opportunities into predictable business growth.

The ideal candidate understands the payments ecosystem, can operate confidently at C-level, and is equally comfortable building strategy, negotiating major partnerships, reviewing pipeline performance, and supporting teams in closing critical deals.

• We are building the platform, which supports various information gathering and processing across the bank and providing access to this data through both private and public cloud approach. The solution will be built from the scratch using the latest technologies.

   

• Responsibilities:

  - Write good and well-tested code using Java
  - Write Test Cases and User/Supporter Documentation of your code
  - Development environment support (mostly automation using Jenkins CI, Bash)
  - Evaluate and adopt new development tools, libraries and approaches to improve quality
  - Perform peer code review of project codebase changes

   

• Mandatory Skills Description:

  - At least 6 years of experience in the industry of software development
  - At least 5+ years of experience in Java
  - Deep knowledge and usage of SQL (Oracle or PostgreSQL dialects is preferable)
  - It is essential for a candidate to have/be able to do livecoding, understand the code and fix it fast

   

• Nice-to-Have Skills Description:

  - Experience with Messaging Systems: RabbitMQ, Kafka, etc.
  - Experience with Kubernetes and Docker
  - Linux user

   

• Languages:
  • English: B2 Upper Intermediate

Project Description:
We are building the platform, which supports various information gathering and processing across the bank and providing access to this data through both private and public cloud approach. The solution will be built from the scratch using the latest technologies.
Responsibilities:
- Write good and well-tested code using Java
- Write Test Cases and User/Supporter Documentation of your code
- Development environment support (mostly automation using Jenkins CI, Bash)
- Evaluate and adopt new development tools, libraries and approaches to improve quality
- Perform peer code review of project codebase changes
Mandatory Skills Description:
- At least 6 years of experience in the industry of software development
- At least 5+ years of experience in Java
- Deep knowledge and usage of SQL (Oracle or PostgreSQL dialects is preferable)
- It is essential for a candidate to have/be able to do livecoding, understand the code and fix it fast
Nice-to-Have Skills Description:
- Experience with Messaging Systems: RabbitMQ, Kafka, etc.
- Experience with Kubernetes and Docker
- Linux user
Languages:
English: B2 Upper Intermediate

🎯 Role Overview:

We are looking for a powerhouse Lead Payments Manager to drive our payment expansion strategy and scale our footprint in the global iGaming market. You aren't just a high-level strategist; you are a "hands-on" executioner who deeply understands the inner plumbing of the payments industry. You will take full ownership of our payment partner ecosystem—from scouting top-tier acquirers and local payment methods (LPMs) to navigating high-risk KYC/Compliance, negotiating commercial terms, and executing seamless Go-Lives.

⚙️ Your Tasks:
 

• Researched and monitored emerging trends in the iGaming payments landscape to identify new partnership opportunities and enhance the existing payment ecosystem.
• Identified, negotiated, and established strategic partnerships with payment service providers, acquirers, and banking institutions across multiple international markets.
• Led commercial negotiations and finalized partnership agreements that supported the company’s strategic growth objectives.
• Managed the full partner onboarding lifecycle, ensuring operational, technical, and compliance readiness for successful launches.
• Coordinated payment integrations by aligning internal product, technical, legal, and compliance teams with external partners, serving as the primary point of contact throughout the implementation process.
• Managed long-term partner relationships through performance monitoring, operational optimization, regular business reviews, and execution of annual KYC and compliance requirements.

👤Our criteria:
 

• Experience: 5+ years of experience in Payment Partnerships, Provider Sourcing, or Payment Business Development within the Payments (PSP/Acquiring) or iGaming industry. Tier-1 company background is required;
• Industry Fluency: Deep understanding of the iGaming ecosystem, including high-risk licensing (MGA, Curaçao, Anj registers, etc.) and regional regulatory frameworks;
• Payment Expertise: Strong knowledge of card processing, Alternative Payment Methods (e.g., Pix, UPI, Open Banking, Crypto), and the end-to-end technical flow of a transaction;
• Hands-on Execution: Proven track record of "working with your hands"—you have personally sourced payment providers/acquirers, negotiated commercial terms/rates, and overseen integration pipelines;
• Compliance Savvy: Hands-on experience with high-risk payment partner onboarding, risk requirements, and AML/KYC standards;
• Partner Network: An existing network ("Rolodex") of contacts within acquirers, PSPs, EMI institutions, and local payment gateways globally (especially in emerging markets);
• Languages: Fluency in English is mandatory; additional languages relevant to emerging markets are a plus. Fluency in Ukrainian/Russian.
   

💼 Our Offer:

• Flexible work setup — work remotely or from the office, we focus on results, not location;
• Support for a comfortable work environment — we compensate coworking expenses and EcoFlow power stations to help our team stay productive during power outages in Ukraine;
• Unlimited vacation and sick leave, because we trust our people to manage their time responsibly;
• Relocation support for team members who want to move;
• Regular performance-based bonuses that reward individual and team impact;
• Learning support — we cover 50% of professional courses and development programs;
• Language & wellbeing support — we cover 50% of English classes and psychological consultations;
• Career growth opportunities — we prioritize internal promotions and development;
• Team culture that actually feels like one — regular gifts, company merch, and team events throughout the year;
• Real impact — we are small enough for every voice to be heard and big enough to turn great ideas into action quickly.

🎯 Role Overview:

As TrueLabel’s Head of Payments you will become the driving force of our team! You’ll get to travel and meet partners, all while leading our payments strategy, performance, and operations end-to-end. Your mandate: deliver best-in-class approval rates and customer experience at the lowest possible cost—while keeping us compliant, scalable, and ready for new markets.

⚙️Your Tasks:​
 

• Strategy: Scale payment solutions for Tier 1 & Tier 2 GEOs;
• Partnerships: Source, negotiate, and integrate new PSPs, Acquirers, and APMs;
• Optimization: Maximize Success Rates and minimize transaction costs/latencies;
• Risk Management: Oversee anti-fraud, chargebacks, and compliance (AML/KYC);

• Analysis: Monitor P&L per payment method and provide data-driven reports.

   

👤Our criteria:
 

• 3+ years in a senior Payments role within iGaming/Gambling;
• Expertise in High-Risk processing (Cards, P2P, Crypto);
• Strong network of active contacts with PSPs and acquiring banks;
• Experience with Tier 1 & Tier 2 regulatory and payment landscapes;
• Upper-Intermediate English and strong negotiation skills.

💼 Our offer:
 

• Flexible work setup - work remotely or from the office, we focus on results, not location;
• Support for a comfortable work environment - we compensate coworking expenses and EcoFlow power stationsto help our team stay productive during power outages in Ukraine;
• Unlimited vacation and sick leave, because we trust our people to manage their time responsibly;
• Relocation support for team members who want to move;
• Regular performance-based bonuses that reward individual and team impact;
• Learning support - we cover 50% of professional courses and development programs;
• Language & wellbeing support - we cover 50% of English classes and psychological consultations;
• Career growth opportunities - we prioritize internal promotions and development;
• Team culture that actually feels like one - regular gifts, company merch, and team events throughout the year;
• Real impact - we are small enough for every voice to be heard and big enough to turn great ideas into action quickly.

Job Summary

We are seeking a Senior Database Administrator with strong expertise in PostgreSQL and MySQL to join our team. The ideal candidate is a hands-on professional capable of designing, deploying, maintaining, and optimizing highly available and scalable database systems.

Experience with additional database technologies such as SQL Server and MongoDB is a strong advantage.

This role also involves working with cloud-native database services across providers such as AWS, Google Cloud, or Azure. Candidates with database migration experience will be given preference.

Key Responsibilities

• Design, configure, and maintain PostgreSQL and MySQL databases in production environments
• Ensure high availability, disaster recovery, and performance optimization of database systems
• Perform database migrations (on-premises to cloud and cross-cloud environments)
• Troubleshoot and resolve database issues across development, testing, and production environments
• Implement database monitoring, backup strategies, and security best practices
• Collaborate with development, DevOps, and data teams on schema design, query tuning, and ETL pipelines
• Participate in capacity planning, cost optimization, and automation initiatives
• Document database systems, configurations, procedures, and runbooks

Required Qualifications

• 3+ years of hands-on experience with PostgreSQL in production environments
• 3+ years of experience with MySQL
• Experience with at least one public cloud platform (AWS, GCP, or Azure), including managed database services (e.g., RDS, Cloud SQL)
• Strong SQL skills with a solid understanding of indexing, query optimization, and partitioning
• Proven knowledge of backup & recovery strategies, replication, and high-availability configurations
• Proficiency in scripting and automation (e.g., Bash, Python, Ansible)
• Experience supporting database migration projects (e.g., PostgreSQL to cloud, MongoDB to Atlas, SQL Server upgrades)

Advantageous Qualifications

• Familiarity with MongoDB, SQL Server, Neo4j, or other NoSQL databases
• Experience with ETL tools, BigQuery, or data warehousing concepts
• Relevant certifications (PostgreSQL, MySQL, AWS, GCP, or Azure)
• Exposure to DevOps practices and infrastructure-as-code tools

We are looking for an experienced Head of Media Buying to join our team. In this role, you will lead and scale performance marketing operations across Tier-1 European markets, driving user acquisition, profitability, and sustainable growth. If you are passionate about performance marketing, data-driven decision-making, and building high-performing teams, we would love to hear from you!

HOW YOU WILL MAKE AN IMPACT

• You will develop and execute media buying strategies across Tier-1 European markets;
• You will manage and optimize multi-channel paid acquisition campaigns across Meta Ads, Google Ads, TikTok Ads, Programmatic/DSP, Push & In-App traffic, Influencer partnerships, ASA, and UAC;
• You will own media planning, budget allocation, and performance forecasting;
• You will manage monthly advertising budgets ranging from €300k to €1M+ while ensuring profitability and sustainable growth;
• You will monitor and improve key performance metrics such as CAC, CPA, CPI, CPL, ROAS, ROI, ROMI, LTV, Payback Period, and Contribution Margin;
• You will lead and mentor cross-functional performance teams, including Media Buyers, Creative Strategists, Designers, Analysts, and Tracking Specialists;
• You will collaborate closely with product, CRM, analytics, and creative teams to maximize acquisition and retention performance;
• You will build scalable acquisition processes, operational frameworks, and reporting structures;
• You will ensure accurate attribution, tracking, and data collection across all acquisition channels;
• You will continuously test, analyze, and optimize campaigns to identify new growth opportunities.

WHAT WILL HELP YOU SUCCEED IN THE ROLE

• 5+ years of experience in Performance Marketing or Media Buying;
• 2+ years of experience in a leadership position such as Head of Media Buying, Performance Lead, or Acquisition Lead;
• Proven experience working with Tier-1 European markets;
• Hands-on experience managing advertising budgets of €300k–€1M+ per month;
• Strong track record of scaling profitable acquisition campaigns;
• Experience in highly competitive industries such as iGaming and Sports Betting;
• Deep understanding of acquisition economics, including CAC, CPA, CPI, CPL, ROAS, ROI, ROMI, LTV, Payback Period, Contribution Margin, Revenue Attribution, Incrementality, Cohort Analysis, Funnel Optimization, and Retention Impact;
• Strong analytical mindset with the ability to make data-driven decisions;
• Excellent leadership, communication, and stakeholder management skills;
• Upper-Intermediate English level or higher.

REQUIRED SKILLS

• AppsFlyer, Adjust, Kochava, or Singular;
• Google Analytics 4 (GA4);
• Google Tag Manager (GTM);
• Meta Conversion API (CAPI);
• Server-side tracking;
• Postback integrations;
• Attribution and analytics systems.

WILL BE A PLUS

• Experience launching and scaling acquisition strategies for mobile-first products;
• Experience working with influencer and performance partnership channels;
• Strong understanding of marketing automation and CRM-driven acquisition initiatives;
• Experience building and scaling international performance teams;
• Knowledge of advanced experimentation frameworks and incrementality testing.

HOW WE WILL KEEP YOU SMILING

• Flexible working hours and a remote work setup, so you can plan work around your life and not your life around work!
• Unlimited vacation days and paid sick leave—because your rest matters.
• A competitive compensation that truly reflects your skills and expertise.
• Employee referral bonus and gifts to celebrate your special occasions.
• 50% financial support for learning expenses to supercharge your professional growth!
• A positive atmosphere where you always feel respected and truly belong.
• Inspirational team-building activities that turn colleagues into best friends.
• Wellness benefits: We’ll support your sports passions, from yoga classes to gym memberships.
• Co-working space reimbursement to save your nerves from always working from home :)

About us:
Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have achieved a significant milestone of over 1 billion downloads worldwide, taking a step toward our mission of cultivating the well-being of people worldwide. With headquarters in London, UK, Gismart is a dynamic global company with a reach extending across Europe and far beyond. Our determined team comprises over 350 individuals who bring diversity, creativity, innovation, and relentless drive to the company. Gismart unites professionals from diverse backgrounds in entertainment, music, and tech, allowing us to play to each other’s strengths and succeed as a team.

Our mission:
Become a stepping stone on our customers’ journeys of self-improvement.

Our values:

• Deliver what matters
• Respect and support others
• Initiate and own
• Voiceopenly
• Execute with quality

If you are passionate about mobile app development and want to join a company that’s reshaping the industry, Gismart is the place for you. We provide exciting career opportunities, a supportive workplace culture, and the chance to contribute to a team that is making a tangible impact. For more information on Gismart, visit gismart.com.

Responsibilities

• Design, build, and maintain ETL/ELT pipelines using SQL/Apache Spark (AWS Glue) and Airflow.
• Model and optimize data in Amazon Redshift and query large datasets via Amazon Athena.
• Write advanced SQL to transform raw data into clean, joinable, analysis-ready tables.
• Build and maintain Tableau dashboards and data sources, ensuring accuracy, performance, and usability for business stakeholders.
• Partner with stakeholders (marketing, product, BI) to translate business questions into robust data models.
• Ensure data quality by implementing checks/monitoring and documenting the data warehouse.

• Improve pipeline reliability, performance, and cost-efficiency on AWS, including evaluating and adopting dbt for transformations.

   

Requirements

• Advanced SQL proficiency — query optimization, window functions, complex joins, performance tuning on large datasets.
• Hands-on experience with the AWS data ecosystem — Redshift/Athena (Spark/Glue will be a plus).
• Python scripting for data processing/automation.
• Experience with Apache Airflow for pipeline orchestration.
• Experience building and maintaining dashboards/data sources in Tableau.
• Ability to communicate data logic and insights clearly to both technical and non-technical stakeholders.

• Solid understanding of data warehousing concepts — dimensional modeling, star/snowflake schemas, slowly changing dimensions.

   

Would be a plus

• Familiarity with the concept of Data Lakehouse and open table formats (Apache Iceberg)
• Experience with dbt for transformation and modeling.
• Experience with marketing/attribution data (Meta, Google Ads, TikTok, AppsFlyer) or mobile app analytics.

• Familiarity with CI/CD practices for data pipelines.

   

Employee Benefits:

• Remote-First Culture: Our team is diverse and extensive, just like our product portfolio. We provide a flexible working schedule and let you work anywhere in the world, either remotely or in one of our corporate hubs.
• Сoworking Compensation: We provide 100% compensation for coworking spaces in Ukraine (except Kyiv, where we have a cozy, autonomous hub) and 50% compensation for coworking spaces worldwide to ensure everyone has a comfortable and inspiring workspace.
• Free Office Lunches: We want you to stay fueled and focused, so we provide delicious free lunches for everyone working from our hubs. It’s one less thing for you to worry about during a productive workday.
• Public Holidays Policy: Gismart observes public holidays based on the Ukrainian or Polish holiday calendars. Employees working in other locations are entitled to 12 public holidays per year.
• 100% Sick Leave Compensation
• Mental and Physical Health: To help you stay happy and healthy, Gismart will partially cover your medical insurance, sports activities, and therapy costs.
• Personal Equipment Policy: Of course, we’ll provide you with all the equipment you need or cover the maintenance cost for your own tools.
• Personal Learning and Development: We love to see you learn and grow, so Gismart will cover 70% of your professional development courses. We’ll also pay for 100% of corporate English courses.
• Time-Off Policy: Every employee gets 18 working days of paid vacation and 3 personal days per year, with an extra day added for each year at Gismart.
• Corporate Events: We are remote-first, but we love meeting up in person. Whenever possible, we organize corporate events and team-building activities across all Gismart hubs.

The product we are working on is the biggest community-based navigation app, complex web services, and other solutions related to it. The web and mobile apps handle information at a massive scale and extend well beyond the search giving people and companies a lot of new useful options. Here you’ll be a part of a skilled international team, working on an app with >100 mln users!

As a Head of QA, you will lead a distributed Quality Engineering organization of approximately 50 engineers across multiple teams. You will define the QA strategy, drive operational excellence, lead AI-driven quality initiatives, and continuously improve quality engineering practices across the organization. Working closely with QA Leads, Engineering, Product, and Delivery teams, you will play a key role in scaling quality and engineering excellence.

Responsibilities

• Define and execute the QA strategy aligned with business and engineering objectives.
• Lead, mentor, and develop a distributed QA organization, including QA Leads and Quality Engineers.
• Drive continuous improvement of QA processes, testing methodologies, operational efficiency, and testing cycle time.
• Establish and enforce QA standards, quality metrics, KPIs, OKRs, and engineering best practices across teams.
• Lead the adoption of AI-powered testing solutions, automation technologies, and modern QA tools while driving AI capability across the organization.
• Define and execute scalable quality engineering and automation strategies across multiple products and teams.
• Partner with Engineering, Product, and Delivery leadership to ensure high-quality software releases, manage quality risks, and provide strategic guidance on quality initiatives.
• Act as the primary escalation point for complex technical, organizational, and quality-related challenges.
• Own the QA hiring strategy, talent development, succession planning, and organizational growth.

• Foster a culture of innovation, accountability, continuous learning, and engineering excellence by identifying and implementing new processes and AI-driven improvements.

   

Requirements

• Location in Warsaw (office-based role)
• 8+ years of experience in Software Quality Assurance.
• 4+ years of experience leading QA teams in a product environment.
• Proven experience managing large QA organizations (20+ engineers), including QA Leads.
• Experience defining QA strategy, organizational standards, KPIs, and scalable quality processes.
• Strong experience driving process optimization and operational excellence across QA organizations.
• Experience defining and executing test strategies and modern Quality Engineering practices.
• Good understanding of AI applications in software testing and a track record of evaluating or adopting AI-driven solutions to improve QA processes.
• Deep understanding of SDLC, Agile methodologies, CI/CD, and software testing best practices.
• Strong leadership, stakeholder management, communication, and decision-making skills.
• Fluent English (C1/C2 level).
• Fluent Ukrainian (C1/C2 level).

Nice to Have

• Hands-on experience with test automation frameworks and QA architecture.
• Experience validating AI-based products or LLM-powered applications.
• Experience with cloud platforms and distributed systems.
• Performance, security, or reliability testing experience.
• ISTQB certification or equivalent.

We Offer

• Opportunity to work on a global product used by 100+ million users worldwide.
• Competitive compensation package, including 20 paid vacation days and paid sick leave.
• Full-time office-based work (5 days per week) in a modern, comfortable office in Warsaw.
• Flexible working hours with a healthy work-life balance.
• Private medical insurance.
• English classes with a native speaker and wellness activities, including online yoga.
• Paid tech training and other activities for professional growth;
• Modern, comfortable office and a friendly, supportive engineering culture.

We are looking for an experienced Senior .NET Developer to join our engineering team and help build a modern FinTech platform. You'll play a key role in designing scalable solutions, driving technical decisions, and mentoring other developers.

Responsibilities:

- Design, develop, and maintain scalable backend applications.

- Build and optimize high-performance APIs and services.

- Contribute to system architecture and technical strategy.

- Conduct code reviews and mentor team members.

- Collaborate with Product, QA, and DevOps teams.

- Ensure high code quality and system reliability.

Requirements:

- 5+ years of commercial experience with C#/.NET.

- Strong expertise in .NET Core / .NET 8 and ASP.NET Core.

- Extensive experience designing REST APIs.

- Strong knowledge of SQL and database optimization.

- Experience with Entity Framework Core.

- Solid understanding of microservice architecture.

- Hands-on experience with Docker and Kubernetes.

- Experience with Azure or AWS.

- Deep understanding of OOP, SOLID, and design patterns.

- Upper-Intermediate English or higher.

Nice to Have:

- Experience with message brokers (RabbitMQ, Kafka, Azure Service Bus).

- Experience with Redis.

- Background in FinTech, banking, or payment systems.

- Experience mentoring developers and leading technical initiatives.

N-iX is looking for Lead DevOps Engineer (AWS Migration & Security) - to join the team

About the client

Our client is a leading European online car marketplace, serving over 30 million monthly users across 18 countries. As a Lead DevOps Engineer – AWS Migration & Security, you will play a pivotal role in modernizing the platform that powers their business — migrating core services to AWS and strengthening the security posture that protects their customers and data at scale.

About the role

We are looking for two experienced engineers to drive a cloud migration and security-hardening initiative through the end of the year. This is a hybrid role, split roughly 50/50 between SRE/operations work and hands-on software development. You will work cross-functionally with multiple teams, migrating services to AWS while identifying and remediating security issues along the way. This role suits someone who is equally comfortable writing Terraform as they are debugging application code, and who enjoys the pace and ownership that comes with a focused, time-boxed engagement.

Responsibilities:

• Plan and execute the migration of existing services to AWS, with a focus on ECS, RDS, and AWS networking (VPC, subnets, security groups, load balancing)
• Identify, prioritize, and remediate security vulnerabilities; apply security fixes and patches across infrastructure and application layers
• Build and maintain infrastructure as code using Terraform and configuration management with Ansible
• Contribute hands-on application development and code changes in PHP and/or Python to support migration and security work
• Collaborate with cross-functional engineering teams to coordinate migration cutovers with minimal disruption
• Document migration runbooks, infrastructure changes, and security remediation work

Requirements:

• 6+ years of commercial DevOps experience
• AWS certification: Solutions Architect (Associate or Professional) or AWS Certified Developer, backed by proven hands-on experience with AWS in production environments — particularly ECS, RDS, and networking; multi-account experience is a plus
• Strong infrastructure-as-code skills with Terraform; working experience with Ansible
• Solid software development experience in PHP, Python, or TypeScript, with the ability to read, modify, and ship production code
• Experience with cloud migration projects (lift-and-shift and/or re-platforming)
• Practical security experience: vulnerability assessment, patching, hardening, and remediation
• Comfort working across teams and codebases in a cross-functional setting
• Availability to work Toronto timezone (EST/EDT) business hours
• Excellent English communication skills

Nice to have:

• Experience with containerization and Docker in production
• CI/CD pipeline design and maintenance
• Familiarity with compliance or security frameworks (e.g., SOC 2, CIS benchmarks)
• Prior experience in contract or consulting engagements with defined deliverables

N-iX is looking for Lead DevOps Engineer (AWS Migration & Security) - to join the team

About the client

Our client is a leading European online car marketplace, serving over 30 million monthly users across 18 countries. As a Lead DevOps Engineer – AWS Migration & Security, you will play a pivotal role in modernizing the platform that powers their business — migrating core services to AWS and strengthening the security posture that protects their customers and data at scale.

About the role

We are looking for two experienced engineers to drive a cloud migration and security-hardening initiative through the end of the year. This is a hybrid role, split roughly 50/50 between SRE/operations work and hands-on software development. You will work cross-functionally with multiple teams, migrating services to AWS while identifying and remediating security issues along the way. This role suits someone who is equally comfortable writing Terraform as they are debugging application code, and who enjoys the pace and ownership that comes with a focused, time-boxed engagement.

Responsibilities:

• Plan and execute the migration of existing services to AWS, with a focus on ECS, RDS, and AWS networking (VPC, subnets, security groups, load balancing)
• Identify, prioritize, and remediate security vulnerabilities; apply security fixes and patches across infrastructure and application layers
• Build and maintain infrastructure as code using Terraform and configuration management with Ansible
• Contribute hands-on application development and code changes in PHP and/or Python to support migration and security work
• Collaborate with cross-functional engineering teams to coordinate migration cutovers with minimal disruption
• Document migration runbooks, infrastructure changes, and security remediation work

Requirements:

• 6+ years of commercial DevOps experience
• AWS certification: Solutions Architect (Associate or Professional) or AWS Certified Developer, backed by proven hands-on experience with AWS in production environments — particularly ECS, RDS, and networking; multi-account experience is a plus
• Strong infrastructure-as-code skills with Terraform; working experience with Ansible
• Solid software development experience in PHP, Python, or TypeScript, with the ability to read, modify, and ship production code
• Experience with cloud migration projects (lift-and-shift and/or re-platforming)
• Practical security experience: vulnerability assessment, patching, hardening, and remediation
• Comfort working across teams and codebases in a cross-functional setting
• Availability to work Toronto timezone (EST/EDT) business hours
• Excellent English communication skills

Nice to have:

• Experience with containerization and Docker in production
• CI/CD pipeline design and maintenance
• Familiarity with compliance or security frameworks (e.g., SOC 2, CIS benchmarks)
• Prior experience in contract or consulting engagements with defined deliverables