Jobs at Djinni

About the job:
We are looking for an experienced DevOps & Platform Engineer (Lead) to join the core team of a high-scale, mission-critical platform.

Self-motivated, quick learner, and proactive individual with a can-do attitude.

Strong English communication skills and ability to collaborate effectively within a team.

Responsibilities:

• Design, build, and maintain On-Prem and Cloud-based infrastructure.
• Running and optimizing multi environment infrastructure (development, staging, production) with clear operational processes.

• Manage and operate Kubernetes clusters at scale.

• Build and maintain CI/CD pipelines.

• Support microservices built.

• Implement security best practices.

• Monitoring, logging, and alerting.

• Improve performance, scalability, and system resilience.
• Ability to troubleshoot complex production issues across networking, Kubernetes, cloud services, and application layers.

• Collaborate with development and operations teams to identify and address bottlenecks in the software delivery lifecycle.

Requirements:

• 7+ years of hands-on DevOps & Platform experience.

• Proven experience with Kubernetes and Helm

• Solid experience with Docker and containerized environments

• Hands-on experience building CI/CD pipelines

• Experience with Infrastructure as Code tools

• Experience working on mission-critical systems (payments, fintech, banking, gaming or similar)

• Ability to operate and troubleshoot production systems under pressure

Nice to Have

• Experience leading complex infrastructure projects (e.g. migration from one cloud provider to another).
• Experience implementing and designing disaster recovery strategies.
• Experience and understanding of networking, security, and scaling.

Ready to offer:

Social benefits, paid vacations, sick-leaves

Career possibilities with growing team.

We are looking for an experienced Grant Manager to join our team. The ideal candidate should have a successful track record in working with grants and technology companies, as well as a high level of written English. Knowledge and skills in preparing documentation such as business plans, budgets, P&L, One Pagers, Pitch Deck, and other similar documents will be a significant advantage.

Main Responsibilities:

• Searching and analyzing available grant opportunities
• Preparing and submitting grant applications
• Supervising and monitoring grant projects
• Interacting with technology companies and other stakeholders
• Preparing and maintaining necessary documentation (business plans, budgets, P&L, One Pagers, Pitch Deck, etc.)
• Ensuring a high level of written English in documentation

Requirements:

• Successful experience with grants and technology companies
• High level of written English
• Skills in preparing documentation: business plans, budgets, P&L, One Pagers, Pitch Deck, and others
• Excellent communication skills
• Ability to work remotely and independently manage work time
  
  What We Offer
• Competitive compensation and performance-based bonuses
• Professional development and learning & development budget
• Autonomy in decision making and idea implementation
• Direct access to founders and a cross-functional leadership team
• Remote-first culture with autonomy, rapid decision cycles, and a bias for action
• A mission that changes lives, backed by real traction and bold global ambitions
• Paid time off - 33 days per year (including public holidays)
• Paid mental health leave - 5 working days per year

We're looking for a driven Business Development Manager to power the outbound engine of our B2B direction. This is a full-cycle, hands-on sales role: you'll open new corporate accounts from first touch all the way through to close. You'll work closely with the B2B Lead and our product, tech, and marketing teams while owning your own pipeline, targets, and outbound motion.
 

Key Responsibilities

• Build and own an outbound pipeline of new B2B accounts: HR/People leaders, executives, and business owners
• Run cold outreach across LinkedIn and email sequences
• Qualify leads, run discovery, and lead first meetings
• Own deals full-cycle, from first touch through negotiation to close
• Close deals offline and face-to-face with Ukrainian companies when needed
• Manage your pipeline in CRM with discipline on stages and next steps
• Support development of the partnership channel by reaching out to new partners
• Consistently hit targets for meetings, pipeline, and revenue

Requirements

• 3+ years of experience in B2B sales / business development with a focus on outbound
• Proven track record of self-sourcing pipeline from cold outreach (LinkedIn, email), not only converting inbound or warm leads
• Hands-on experience closing deals with corporate clients
• Consistent record of meeting or exceeding sales targets, with concrete deal sizes and cycle length
• Strong negotiation skills
• Solid CRM discipline
• English proficiency at B2 level or higher
• Ukrainian at native/fluent level
• Based in Kyiv
• Self-organized, autonomous, and comfortable navigating complex deals
• Genuine belief in advancing psychotherapy and wellbeing

Nice to have

• Experience in mental health, HR tech, or wellbeing sectors
• Experience working with partnership channels

What We Offer

• Competitive compensation and performance-based bonuses
• Professional development and learning & development budget
• Autonomy in decision making and idea implementation
• Direct access to founders and a cross-functional leadership team
• Remote-first culture with autonomy, rapid decision cycles, and a bias for action
• A mission that changes lives, backed by real traction and bold global ambitions
• Paid time off — 33 days per year (including public holidays)
• Paid mental health leave — 5 working days per year

Cloudfresh ⛅️ is a Global Google Cloud Premier Partner, Zendesk Premier Partner, Asana Solutions Partner, GitLab Select Partner, Hubspot Platinum Partner, Okta Activate Partner, and Microsoft Partner.

Since 2017, we’ve been specializing in the implementation, migration, integration, audit, administration, support, and training for top-tier cloud solutions. Our products focus on cutting-edge cloud computing, advanced location and mapping, seamless collaboration from anywhere, unparalleled customer service, and innovative DevSecOps.

We’re currently looking for a Data Engineer/Analyst (GCP) to join our team. In this role, you’ll design, implement, and deliver robust data platforms and analytics solutions on Google Cloud - ensuring technical excellence and client success across the full project lifecycle, from pre-sales discovery to enterprise delivery and internal projects. We’re excited to meet someone who’s ready to make a real impact.

Requirements

- Fluency in Ukrainian
- At least B2 level in English
- GCP Native Data Stack: Deep practical knowledge of BigQuery, Cloud Storage, Cloud Functions, and BigQuery ML.
- 3+ years of experience in Data Engineering
- Strong experience with Dataflow, Dataproc, Pub/Sub, Cloud Composer, or Dataform for building and maintaining optimized ETL/ELT processes in GCP.
- Proficiency in Looker / Looker Studio.
- Advanced SQL (focus on optimization and performance tuning) and Python (for API integrations and pipeline scripting).
- Comfortable in client-facing and pre-sales scenarios (live demos, requirements gathering) with the ability to translate business needs into scalable technical designs.
- A proactive, self-driven approach with high responsibility for data platform reliability and accuracy.
- Familiarity with integrating data from APIs, relational databases, NoSQL systems, and SaaS platforms.
- Ability to work seamlessly with architects, DevOps, and ML engineers to deliver end-to-end cloud solutions.

Responsibilities

- Design and build modern data platforms for enterprise clients, working with both structured and unstructured datasets at scale.
- Lead the implementation of analytics solutions ensuring strict data quality, security, and rigorous performance optimization.
- Run workshops and deliver technical presentations to stakeholders to define and refine data architectures.
- Continuously monitor and tune BigQuery cost/scalability models and ETL performance.
- Collaborate with the team during discovery phases to provide technical expertise, live demos, and solution scoping.
- Identify and explore new GCP features and agentic AI tools to automate operations and improve process analytics.

Work conditions

- Flexible Work Format: Work remotely with flexible hours, allowing you to balance your professional and personal life efficiently.
- Training with Leading Cloud Products: Access in-depth training on cutting-edge cloud solutions, enhancing your expertise and equipping you with the tools to succeed in an ever-evolving industry.
- International Collaboration: Work alongside A-players and seasoned professionals in the cloud industry.
- Expand your expertise by engaging with international markets across the EMEA and CEE regions.
- Vibrant Team Environment: Be part of an innovative, dynamic team that fosters both personal and professional growth, creating opportunities for you to advance in your career.

When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).
Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes. You can withdraw this consent at any time.

Cloudfresh ⛅️ is a Global Google Cloud Premier Partner, Zendesk Premier Partner, Asana Solutions Partner, GitLab Select Partner, Hubspot Platinum Partner, Okta Activate Partner, and Microsoft Partner.

Since 2017, we’ve been specializing in the implementation, migration, integration, audit, administration, support, and training for top-tier cloud solutions. Our products focus on cutting-edge cloud computing, advanced location and mapping, seamless collaboration from anywhere, unparalleled customer service, and innovative DevSecOps.

We’re looking for a Google Cloud Security Engineer to harden client environments across GCP. You’ll implement and help design security controls, automate guardrails, improve detection & response, and guide stakeholders through pragmatic, risk-based decisions across EMEA.

Requirements:

• 3+ years proven, hands-on experience in a Security Engineer, SecOps (or similar) role.
• Strong knowledge of building and operating Security Porture, Edge protection, WAF, Endpoint security.
• Technical certifications related to CyberSecurity Google Cloud Solutions, Cloudflare and JumpCloud are an advantage.
• Experience of presentation, documentation.
• Excellent communication and strategic planning abilities, able to explain trade-offs, influence remediation, and drive adoption of guardrails.
• Basic scripting experience (e.g., Python, Bash, or gcloud CLI).
• Fluency in English.

Responsibilities:

• Design, implement, and operate security controls for internal needs and clients across.
• Perform cybersecurity audits.
• Configure and monitor Security Command Center, audit logs, and threat protection.
• Establish logging, detection and incident response.
• Assist clients with implementation of Cybersecurity products (Google Cloud Security Center, Google Workspace Security, Cloudflare, JumpCloud) and compliance controls.
• Generate security assessment reports and provide actionable recommendations.
• Continuously assess the landscape: track new Vendors features and update baselines to improve posture, reliability, and cost efficiency.

Work conditions:

• Competitive Salary & Transparent Motivation: Receive a competitive base salary with performance-based bonuses, providing clear financial rewards for your success.
• Flexible Work Format: Work remotely with flexible hours, allowing you to balance your professional and personal life efficiently.
• Training with Leading Cloud Products: Access in-depth training on cutting-edge cloud solutions, enhancing your expertise and equipping you with the tools to succeed in an ever-evolving industry.
• International Collaboration: Work alongside A-players and seasoned professionals in the cloud industry. Expand your expertise by engaging with international markets across the EMEA and CEE regions.
• Vibrant Team Environment: Be part of an innovative, dynamic team that fosters both personal and professional growth, creating opportunities for you to advance in your career.

When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).
Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes. You can withdraw this consetn at any time.

Cloudfresh ⛅️ is a Global Google Cloud Premier Partner, Zendesk Premier Partner, Asana Solutions Partner, GitLab Select Partner, Hubspot Platinum Partner, Miro Solutions Partner, Okta & Microsoft Partner.

Since 2017, we’ve been implementing, migrating, integrating, administering, and auditing cloud solutions everybody knows—all the way from PoC and training to ongoing support and GenAI guidance, always with the customer’s IT setup in mind.

Businesses get to capture the value of compelling products that span cloud computing, location and mapping, borderless collaboration, peerless customer service, and DevSecOps.

We’re currently looking for a Marketing Manager to join our team. In this role, you’ll help shape and manage marketing efforts across various channels—supporting key business goals, generating leads, strengthening our brand, and building meaningful connections. Your work will play an important role in how we communicate, grow, and deliver value. We’re excited to meet someone who’s ready to make a real impact 💚

Requirements

• Minimum of 3 years of experience in a marketing manager role, ideally within the B2B space.
• 2+ years of experience in the SaaS industry.
• Proven ability to plan and execute campaigns across various channels, and/or develop content and shape content strategies.
• Solid understanding of lead generation, brand awareness, content creation, event execution, and other key B2B marketing activities.
• Experience working with CRM systems such as HubSpot or similar platforms.
• Familiarity with advertising tools including Google Ads, Facebook, Instagram, LinkedIn, and a basic grasp of Google Analytics.
• Upper-intermediate to advanced English proficiency, both written and spoken.
• A proactive mindset with a collaborative, solution-oriented approach.
• Excellent communication skills and the ability to work effectively with cross-functional teams.

Responsibilities

• Collaborate with the team to plan and execute multi-channel marketing campaigns that drive pipeline growth and strengthen brand awareness.
• Develop and launch initiatives that promote the company’s products and services across key channels, including social media, email, digital media, paid search, SEO, and others.
• Monitor campaign performance, test new approaches, and continuously optimize to support business goals.
• Identify and explore new platforms and touchpoints to engage target audiences across the entire funnel—from awareness to conversion.
• Build and nurture strong relationships with partners and clients through joint marketing activities such as special projects, events, success stories, co-branded content, and other.

Would be a plus

• Proven writing skills with experience in the technology and software sectors, specifically within a B2B context.

Work conditions

• Advance with Top Cloud Brands: Build your cloud marketing expertise with Google Cloud, Asana, GitLab, Zendesk, HubSpot, Miro, Okta, and Microsoft.
• Expand Your Reach: Lead meaningful campaigns across EMEA, making an impact in diverse and dynamic markets.
• Make a Real Difference: Drive smart, results-focused strategies that truly resonate with our clients.
• Grow with a Supportive Team: Join a team that celebrates your wins and encourages your growth every step of the way.
• Experiment & Innovate Freely: Bring your ideas to life in a culture that values creativity and is open to new approaches.
• Earn What You Deserve: Enjoy a competitive salary and a transparent bonus system tied to your results.
• Flexible Remote Schedule: Work flexibly remote or join us for a coffee in Kyiv or Prague offices.
• Comprehensive Leave: 24 vacation days, bank holidays, and unlimited sick leave.
• Continuous Learning: Access sponsored educational opportunities such as courses, conferences, meet-ups, company-sponsored English learning groups to keep your skills sharp and relevant.
  
  When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).
  Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes. You can withdraw this consent at any time.

Work setup:  Fully remote

Engagement:  Project-based, ~6 months, with likely extension depending on business needs

Role summary

We are looking for a senior data / analytics engineer specialising in Looker (LookML) to lead the modelling and presentation layer that turns raw Google Cloud data into governed, self-service insight for our clients.

The heart of the role is running a complex, multi-tenant Looker environment. You will maintain a LookML layer that uses dynamic properties and user attributes to route each user to their own BigQuery dataset — keeping this shared "single model, many tenants" architecture secure, scalable and fast.

Required skills & experience

• Looker / LookML — expert-level: building complex models and managing Looker instances.
• Version control — managing branches and repositories for models, dashboards and metrics.
• Advanced SQL — strong command of SQL for Google BigQuery, including window functions and nested / repeated fields.
• Multi-tenancy — managing data access and security filtering for multiple external clients within a single BI platform.
• Data governance — using Liquid variables and user attributes in Looker to drive dynamic, context-specific content.
• User administration — managing Looker groups, roles and users, including custom attributes per user.
• GCP — a general understanding of Google Cloud resource structures, enough to interpret the incoming data correctly.

Experience requirements

• 3+ years working with LookML.
• 5+ years working with SQL.
• 3+ years working with Google Cloud Platform (GCP).
• 4+ years working with Google BigQuery.

About Us
We’re a fast-growing startup operating at the intersection of CS2 skin gambling and online casino entertainment. Our brand blends gaming culture, high-stakes excitement, and cutting-edge technology into a seamless platform where users can wager, win, and trade with ease.
As we build the next generation of skin-based entertainment, our community remains at the core of everything we do. We’re now looking for a Customer Support Specialist who will help us deliver an exceptional user experience, support players across multiple markets, and ensure our platform remains trustworthy, engaging, and responsive. 

Job Summary
As our Customer Support Specialist, you will be the first point of contact for our users, representing the voice and face of our platform. Your role goes far beyond simply answering inquiries — you will focus on fully resolving user issues, building trust, and ensuring every interaction ends with a satisfied customer, even if they begin frustrated or doubtful.

Required Qualifications

• English: Level B2 (Upper-Intermediate) or higher. Excellent written grammar is a must.
• Experience: 1+ year in Customer Support (experience in GameDev, Crypto, or Fintech is a huge plus).
• Soft Skills: High stress resistance, empathy, and the ability to "read between the lines."
• Tech Skills: You understand how browsers work, what cache/cookies are, and can explain it to a grandmother.
   

Key Responsibilities

• User Support: Handling incoming inquiries via chat and ticketing systems (crisp.chat/discord) in English, Russian, and Ukrainian. 
• Technical Troubleshooting: Primary diagnosis of issues (deposit errors, login problems, withdrawal delays).
• Analysis & Escalation: Identifying mass issues and quickly relaying information to the technical team.
• Knowledge Base: Updating internal instructions and Help Center articles.
   

Recruitment Process

1. Application Review (1-2 weeks).
   If you have not received a response from the recruiter, your experience is irrelevant to this vacancy.
2. Interview Stages (2-3 weeks).
   1. Prescreen Call with Recruiter - 30 min.
   2. Technical Interview - 1 hour.
   3. Test Assignment.
   4. Final Interview - 30 min. 
3. Job Offer
4. Referrals: Employment and Background Check

We Offer

• Competitive compensation package (depends on your experience and skills).
• Fully remote work with flexible hours (within the CET/EET time zone) from any location of your choice.
• 29 business days of vacation and paid sick leave.
• Corporate equipment (laptops, monitors, etc.).
• Professional courses/certifications (200 EUR per year).
• Operating in a start-up environment with cutting-edge technologies and unlimited investments in software upgrades, free from legacy systems or outdated solutions.
• Values-driven culture with a friendly and supportive work environment.
• Matrix organizational structure designed to streamline communication, remove barriers, and promote efficiency.
   

We’re not looking for someone to just “join the team” - we’re looking for someone ready to shape the product, lead meaningful growth, and make an impact from day one.

If that sounds like you - send over your CV, and let’s talk!

Work setup:  Remote

Engagement:  Long-term, client-facing implementation role

English:  Strong professional / fluent (stakeholder-facing)

Role summary

We are looking for an engineer to design, configure, integrate and support secure, production-grade generative-AI solutions built on Google Cloud. The core of the role is turning everyday business processes into scalable, AI-powered workflows — enterprise search, knowledge discovery, question-answering and agent-based automation — on top of Google's enterprise GenAI and search stack (for example Gemini Enterprise, Vertex AI Search and Agent Builder). You will work hand-in-hand with business stakeholders, cloud and platform engineers, security teams and application developers to take solutions from discovery through to live operation.

What you'll do

Solution build & AI agents

• Configure and deploy enterprise GenAI applications to match business and customer requirements — data stores, search experiences, actions and agents.
• Build AI-driven enterprise search, knowledge discovery, Q&A and workflow-automation capabilities.
• Create reusable agents that serve operations, customer service, sales, HR and knowledge-management use cases.

Data integration & retrieval quality

• Connect the platform to structured and unstructured company data — Google Workspace, Microsoft 365, databases, document repositories, cloud storage, APIs and third-party business apps.
• Design secure ingestion, indexing, synchronisation and retrieval flows, and make sure applications are wired to the right data stores for answers, actions and agents.
• Improve answer and search quality through metadata design, document preparation, access controls, grounding and retrieval tuning.

Security & governance

• Implement identity, access management and role-based access so retrieval respects each user's existing permissions.
• Keep solutions aligned with organisational security, privacy and governance policy, and work with security/compliance teams on data residency, auditability, retention and responsible-AI requirements.
• Identify and mitigate risks such as data leakage, prompt injection, unauthorised access, hallucinations and inappropriate responses; maintain documentation of architecture, data flows and access controls.

Deployment & operations

• Support solutions across development, testing, production rollout and ongoing operation.
• Monitor usage, search quality, agent performance, latency, errors and user feedback; set up logging, monitoring and alerting.
• Troubleshoot data connectors, indexing, authentication, API and permission issues, and recommend improvements from adoption metrics and evaluation results.

Stakeholder collaboration

• Run discovery sessions to understand requirements, workflows, data sources and desired outcomes, and translate them into technical architecture and delivery plans.
• Produce proofs of concept, demos, documentation and technical presentations; train administrators, developers, support teams and end users on capabilities and responsible use.

Must-have qualifications

• Bachelor's degree in Computer Science, IT, Engineering or a related field — or equivalent hands-on experience.
• 3+ years in cloud engineering, software development, data engineering, AI engineering or enterprise application implementation.
• Hands-on experience with Google Cloud Platform.
• Experience with generative AI, large language models, conversational AI or enterprise-search technologies.
• Experience integrating applications with APIs, databases, cloud storage and third-party systems.
• Proficiency in at least one programming language — Python preferred (Java, JavaScript/TypeScript or Go also welcome).
• Solid grasp of REST APIs, authentication, OAuth, service accounts and identity & access management.
• Working knowledge of prompt engineering, retrieval-augmented generation, grounding, embeddings and semantic search.
• Familiarity with structured and unstructured data ingestion, plus testing, troubleshooting, logging and monitoring.
• Strong analytical, documentation, communication and stakeholder-management skills.

Nice to have

• Hands-on delivery with Google's enterprise GenAI products (Gemini Enterprise / Vertex AI Search / Agent Builder) or comparable platforms.
• Experience with Vertex AI, the Gemini APIs or other conversational-AI platforms.
• Building enterprise AI agents and multi-step agentic workflows.
• Integrating Google Workspace or Microsoft 365 data.
• BigQuery, Cloud Storage, Cloud Run, Cloud Functions, Pub/Sub and API management.
• Document processing, vector search, embeddings and knowledge-management platforms.
• Infrastructure as code and CI/CD (Terraform, GitHub Actions, Cloud Build).
• Understanding of responsible AI, model evaluation, AI governance and enterprise data privacy.
• Prior client-facing consulting, professional-services or enterprise-implementation work.
• Relevant Google Cloud certifications (e.g. Professional ML Engineer, Professional Cloud Architect, Professional Data Engineer, Professional Cloud Developer, Generative AI Leader).

Core competencies

• Strong problem-solving and analytical thinking.
• Ability to translate business needs into practical AI solutions.
• Attention to data security, privacy and governance.
• Clear technical and business communication.
• Comfortable juggling several implementation priorities and working independently while coordinating across teams.

B2B Sales Manager (US Market) — Remote

Do you enjoy phone negotiations, aren’t afraid of cold outreach, and want your income tied to results rather than a ceiling? Then keep reading.

Binotel is a SaaS company with 15 years of experience in business communications. We’re expanding into the US market and looking for a Sales Manager to own deals from first contact to signed contract.

What to know upfront

• You’ll sell to US-based businesses — all calls and negotiations in English with native speakers (C1+ required).
• Schedule: 3:00 PM–12:00 AM Kyiv time (aligned with the US business day).
• Fully remote.

What you’ll do

• Own the full sales cycle: discovery call → demo → objection handling → close.
• Conduct discovery calls and online meetings with US-based businesses.
• Match prospects from our product suite (Cloud PBX, Call Tracking, CRM, Online Chat, and business automation tools) to the problems they actually need solved.
• Build long-term relationships with decision-makers.
• Keep deals updated in CRM and maintain an accurate forecast.
• Hit monthly targets and KPIs.

What we’re looking for

• 1+ year in B2B sales, ideally SaaS or telecom.
• Experience with outbound / cold outreach.
• English C1+, confident on calls and in negotiation.
• Numbers-driven mindset, not process-driven.

What we offer

• 💻 Fully remote work
• 🕒 Working hours: 3:00 PM–12:00 AM (Kyiv time)
• 💰 Competitive fixed salary + uncapped commission
• 📈 Clear career growth to Senior Sales Manager and Team Lead
• 🎓 Structured onboarding and support from an experienced team
• 🚀 Established SaaS product with international expansion

Are you ready to take ownership of mission-critical backend systems in a high-load, transaction-heavy environment? 

We are looking for a Senior Java Developer to join our Payments Domain team in Warsaw.

This is a hybrid role with 3 days per week in the office, giving you the perfect balance between collaboration and flexibility. 

At Sigma Software, we value engineering excellence, multicultural teamwork, and delivering secure, high-performance solutions.

Why join us? You’ll work on a platform processing millions of transactions daily, contribute to architectural decisions, and be part of a company where innovation and ownership are encouraged.
 

Customer

Our customer is a well-established international company in the iGaming industry, known for its engineering-driven culture and multicultural team distributed across multiple countries. Operating multiple brands across various markets, the company delivers secure, high-performance digital platforms recognized for reliability and scalability.
 

Project

You will be part of the Payments Domain team, responsible for developing and maintaining a large-scale payments platform built on modern microservices architecture. The platform processes millions of secure transactions daily, supporting multiple brands and geographies. The work focuses on scalability, reliability, and performance in a high-load environment, covering everything from integration with payment providers to transaction monitoring and compliance.

Requirements:

• 5+ years of commercial experience with Java and Spring Boot
• Strong experience with MySQL and Kafka
• Proven track record working with microservices architecture in high-traffic, high-load systems
• Experience developing high-performance backend solutions for transaction-heavy platforms
• Ownership mindset with the ability to deliver services end-to-end
• Excellent communication skills in English (C1 level), both written and verbal
• Experience with Kotlin
   

Responsibilities:

• Design, develop, and maintain backend services for the payments platform using Java and Spring Boot
• Ensure high availability, scalability, and performance of transaction processing systems
• Collaborate with cross-functional teams to define technical requirements and deliver solutions end-to-end
• Implement integrations with payment service providers and internal systems
• Participate in architectural discussions and contribute to system evolution in a microservices environment
• Monitor, troubleshoot, and optimize services in production
• Ensure compliance with security, regulatory, and operational standards
• Drive continuous improvement in code quality, testing, and deployment practices

Чи готові ви взяти на себе відповідальність за критично важливі backend-системи у високонавантаженому середовищі з великою кількістю транзакцій?

Ми шукаємо Senior Java Developer до команди Payments Domain у Варшаві.

Це hybrid-роль із відвідуванням офісу 3 дні на тиждень, що забезпечує баланс між командною співпрацею та гнучкістю.

У Sigma Software ми цінуємо інженерну досконалість, мультикультурну командну роботу та створення безпечних високопродуктивних рішень.

Чому варто приєднатися? Ви працюватимете над платформою, яка щодня обробляє мільйони транзакцій, братимете участь у прийнятті архітектурних рішень та станете частиною компанії, де заохочуються інновації та відповідальність за результат.

Клієнт

Наш клієнт — міжнародна компанія у сфері iGaming із сильною engineering-культурою та мультикультурною командою, розподіленою між кількома країнами. Компанія керує кількома брендами на різних ринках і створює безпечні високопродуктивні цифрові платформи, відомі своєю надійністю та масштабованістю.

Проєкт

Ви станете частиною команди Payments Domain, відповідальної за розробку та підтримку масштабної платіжної платформи, побудованої на сучасній мікросервісній архітектурі. Платформа щодня обробляє мільйони безпечних транзакцій, підтримуючи різні бренди та географії. Робота зосереджена на масштабованості, надійності та продуктивності у високонавантаженому середовищі — від інтеграції з платіжними провайдерами до моніторингу транзакцій і забезпечення відповідності вимогам.

Вимоги:

• 5+ років комерційного досвіду з Java та Spring Boot 

• Впевнений досвід роботи з MySQL та Kafka 

• Підтверджений досвід роботи з мікросервісною архітектурою у високонавантажених системах 

• Досвід розробки високопродуктивних backend-рішень для платформ із великою кількістю транзакцій 

• Ownership mindset та здатність вести сервіси end-to-end 

• Відмінні комунікаційні навички англійською мовою (рівень C1), усно та письмово 

• Досвід роботи з Kotlin

Обов’язки:

• Проєктування, розробка та підтримка backend-сервісів платіжної платформи з використанням Java та Spring Boot 

• Забезпечення високої доступності, масштабованості та продуктивності систем обробки транзакцій 

• Співпраця з кросфункціональними командами для визначення технічних вимог і реалізації рішень end-to-end 

• Реалізація інтеграцій із платіжними провайдерами та внутрішніми системами 

• Участь в архітектурних обговореннях і розвиток системи в мікросервісному середовищі 

• Моніторинг, troubleshooting та оптимізація сервісів у production 

• Забезпечення відповідності вимогам безпеки, регуляторним та операційним стандартам 

• Постійне вдосконалення якості коду, тестування та процесів деплою

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.
 

Now our team has a position for SMM Specialist!

Requirements:

• 2+ years of proven experience in SMM.
• Fluent English.
• Strong experience with LinkedIn: profile promotion for US/EU audience (posts, activity, comments, ranking, advertising).

• Ability to provide successful LinkedIn cases in the CV/portfolio.

   

Responsibilities:

• Manage and grow LinkedIn personal profiles for US/EU market.
• Create and post engaging content, maintain regular activity, interact through comments.
• Work on profile ranking, visibility, and advertising campaigns.

• Monitor performance and optimize campaigns based on analytics.

   

What the company offers:

• Constant and interesting work with foreign clients.
• Flexible working hours.
• Annual paid 30 days vacation and paid sick day.
• 50% cost compensation of sports, English lessons.

Applause is looking for a Senior iOS Engineer to work across multiple consumer subscription apps, building both user-facing features and shared platform infrastructure used across the portfolio.

Responsibilities

• Build and ship features across multiple iOS applications.
• Develop with Swift, SwiftUI and UIKit.
• Design scalable technical solutions for complex product challenges.
• Improve architecture, performance, accessibility and reliability.
• Build shared infrastructure including analytics, feature flags, subscriptions and release tooling.
• Collaborate closely with Product, Design and Engineering.

Requirements

• Strong production experience building iOS applications.
• Excellent Swift, SwiftUI and UIKit knowledge.
• Ability to maintain existing Objective-C code.
• Expertise in at least one advanced Apple framework or domain (HealthKit, accessibility, audio, speech, background processing, sync, offline architecture, etc.).
• Experience with multiple Apple frameworks.
• Understanding of accessibility, offline synchronization and analytics infrastructure.
• Experience with subscription platforms such as RevenueCat or Superwall.
• Strong system design and problem-solving skills.

Nice to Have

• CI/CD and release automation.
• Internal frameworks or SDK development.
• Audio or speech technologies.
• Open-source contributions or successful side projects.
• Experience in consumer subscription products or mobile gaming.

What Offered

• Fully remote (daily team meeting at 4:00 PM CEST (3:00 PM BST / 10:00 AM ET)
• Full-time role (part-time from 3 days/week considered for exceptional candidates).
• High ownership and technical autonomy.
• Work across multiple successful consumer apps.
• Flexible PTO (approximately 2 weeks) and paid sick leave.
• Direct influence on engineering standards across the entire product portfolio

We’re seeking a copywriter who is passionate about creating valuable content and is ready to develop its professional skills in product IT company.

If you’re passionate about storytelling and you’re a fast-learner with very strong writing ability you are in the right place.

Responsibilities:

Writing unique and product-oriented content (articles, press-releases, product descriptions, announcements for social media and so on)

Work closely with designers, customer success, sales, developers, SEO specialists, and product managers to understand user goals, then craft meaningful, clear language to guide users through an experience.

Help storyboard and test scripts for user assistance videos & articles

Write clear and compelling in-app content (help, tips, error messages)

Help track content metrics (Google Analytics, SEO, plus other methods and tools)

Requirements

At least 3 years of writing experience in content creation, academic research writing or technical writing

Advanced written English is a MUST

Experience working with marketing tools such as Ahrefs, SemRush, SimilarWeb, etc.

Helpful, organized, proactive, attentive to small details and precise in your work

Please include word "riposte" into your application to demonstrate your level of attention.

Able to use data to drive insight and creativity.

Please provide a portfolio that showcases your excellent writing and editing skills

Would be a Plus:

Basic knowledge of SEO

Basic understanding of Google Analytics

At least some experience with content marketing, email marketing, SMM.

About the Role

We are looking for a highly experienced Senior Mobile & Embedded Software Engineer to lead the end-to-end development of a companion mobile application for a Bluetooth-enabled skincare device.

This is a hands-on role for a senior contractor who can take ownership of the entire development lifecycle - from defining the architecture and technical specifications to building, integrating, testing, and delivering the final solution.

The successful candidate will work independently as the primary engineer on the project, collaborating directly with the client and taking full ownership of the product from concept through launch.

Following the initial product release, there is an opportunity to continue working with the company on a long-term part-time basis, providing ongoing support, maintenance, and feature enhancements for a few hours each week.

Responsibilities

• Design and develop a mobile application for a Bluetooth-enabled skincare device.
• Define the overall system architecture and application structure.
• Implement reliable Bluetooth Low Energy (BLE) communication between the mobile application and the device.
• Collaborate on firmware integration and hardware communication.
• Write detailed technical specifications and system documentation.
• Lead the development process from concept through production release.
• Troubleshoot hardware/software integration issues.
• Ensure high performance, reliability, and maintainability of the application.
• Deliver a production-ready solution within the project timeline.

Requirements

• 5+ years of experience in mobile application development (iOS, Android, or cross-platform).
• Strong expertise with Bluetooth Low Energy (BLE).
• Solid experience integrating mobile applications with embedded systems and firmware.
• Hands-on experience developing software for connected skincare devices or skincare technology products is required.
• Proven experience delivering products from concept to production.
• Ability to independently define architecture, make technical decisions, and own the full development lifecycle.
• Experience writing technical specifications and system requirements.
• Strong debugging and problem-solving skills.
• Excellent communication skills and ability to work independently.

Nice to Have

• Experience with connected medical, wellness, beauty-tech, or IoT devices.
• Experience with BLE device certification and testing.
• Familiarity with FDA-regulated or consumer healthcare products.