Jobs at Djinni

Project Description:

Join our Development Center in Bucharest, and become a member of our open-minded, progressive and professional team. In this role you will be working on projects for one our world famous clients.
You will have a chance to grow your technical and soft skills, and build a thorough expertise of the industry of our client.
On top of attractive salary and benefits package, Luxoft will invest into your professional training, and allow you to grow your professional career.

Responsibilities:

Architect, design, implement, and maintain highly scalable, secure, and resilient infrastructure on Google Cloud Platform (GCP).
Drive Infrastructure as Code (IaC) best practices, leveraging Terraform extensively for resource provisioning and configuration management.
Lead the development, optimization, and standardization of robust CI/CD pipelines using GitHub Workflows, ensuring efficient, reliable, and secure software releases.
Collaborate closely with development teams to embed DevOps practices, promote a culture of continuous improvement, and ensure optimal application performance and stability.
Automate complex operational tasks and processes, reducing manual effort and improving overall system efficiency and reliability.
Develop and maintain advanced scripts and tools for infrastructure automation, monitoring, and deployment across the GCP ecosystem.
Implement and enforce stringent security best practices, ensuring compliance and data protection across all infrastructure components and deployment processes, including the use of GCP Secret Manager.
Provide technical leadership, mentorship, and guidance to junior team members, fostering their growth and development.
Participate in on-call rotations and provide expert-level support for production systems, ensuring high availability and rapid issue resolution (if requested).

Mandatory Skills Description:

Expert-level proficiency in Infrastructure as Code tools, specifically Terraform (a mandatory requirement).
Demonstrable expertise in cloud platforms, with significant hands-on experience and certifications in Google Cloud Platform (GCP).
Extensive experience with enterprise Security Management solutions, including advanced usage of GCP Secret Manager and other GCP security services (e.g., Cloud IAM, Security Command Center).
Proven track record in defining, implementing, and optimizing complex CI/CD flows, with deep expertise in GitHub Workflows.
Strong experience with containerization technologies: Docker (creating optimized images, multi-stage builds) and Kubernetes (cluster administration, deployments, scaling, using Terraform modules for cluster creation/management).
Proficient in developing and maintaining Helm Charts (templates, hooks, packaging, release management).
Solid experience in delivering high-quality, maintainable code within enterprise-scale development environments, adhering to best practices and code review processes.
In-depth working knowledge of environment monitoring tools such as GCP Operations (formerly Stackdriver), New Relic, Prometheus, Grafana, for proactive incident detection and performance optimization.
Strong expertise in software development processes, models, lifecycles, and methodologies (Agile/Scrum).
Hands-on experience with service-mesh technologies like Istio or similar products for traffic management, security, and observability.
Advanced software development and scripting skills in at least one relevant language (e.g., Python, Go, Java, Bash, JavaScript).

Nice-to-Have Skills Description:

Experience with configuration management tools like Ansible or Chef.
Experience with AWS or Azure is a plus.

PrimeFox, a recruitment agency, is looking for a Senior Payment Manager for our client, a large international iGaming holding growing projects across Latin America.

We are looking for a strong specialist with deep expertise in LATAM payment infrastructure. You should have experience working with local and international payment providers and understand how iGaming payments work.

The role focuses on developing and optimizing payment solutions across LATAM markets:

• raising deposit conversion;
• keeping withdrawals stable;
• making sure the payment infrastructure runs efficiently.

Key responsibilities

• Manage payment processes across LATAM markets.
• Source and onboard PSPs and local payment providers, and develop relationships with them.
• Optimize deposit and withdrawal flows.
• Analyze approval rate, conversion rate, decline rate, payout success and transaction costs.
• Develop payment methods tailored to local markets.
• Monitor payment routes, limits and backup solutions to keep them stable.
• Work closely with Product, Finance, Risk, Compliance and technical teams.
• Take part in launching new GEOs and scaling the payment infrastructure.

What we expect

• Experience as a Payment Manager or Senior Payment Manager in iGaming.
• Strong hands-on expertise in LATAM payment solutions.
• Knowledge of local payment methods, especially in Brazil, Mexico, Argentina, Colombia and Peru.
• Experience working with PSPs, banks, aggregators and local payment partners.
• Understanding of payment routing, cascading, backup routes and conversion optimization.
• Knowledge of KYC, AML, antifraud, chargebacks and payment risks.
• Ability to analyze payment metrics and make data-driven decisions.
• Independence, structure, ownership and strong communication skills.

Nice to have

• Active contacts with PSPs and payment providers in LATAM.
• Experience setting up payment infrastructure for new iGaming projects.
• Experience covering several GEOs at once.
• Experience with integrations and technical work with providers.

If you have strong LATAM payments expertise and know how to keep payment processes stable, converting and efficient, we would be glad to hear from you.

If you’re reading this message, it already means a lot to us.

Our team is growing, and so is our hiring plan. That’s why we’re looking for a Talent Acquisition Specialist in Cyprus to join our team.

For us, this is a partner role, not just about closing positions. We are looking for a colleague with a business mindset, a high level of independence, and the ability to see more in candidates than just a set of hard skills.

Requirements

• Proven experience collaborating effectively with Hiring Managers as an advisor and expert, rather than an order taker
• Deep understanding of how quality hiring directly impacts business goals
• Ability to evaluate not only hard skills, but also soft skills, motivation, long-term potential, and culture fit
• Strong sense of ownership and autonomy to drive the recruitment process and make sound decisions
• Goal-oriented mindset with the resilience to tackle complex searches and find non-standard solutions

• Hands-on experience managing the end-to-end hiring lifecycle 

   

Responsibilities

• Own the full-cycle hiring process for business-critical roles
• Work closely with Hiring Managers to define candidate profiles, refine job requirements, and build tailored sourcing strategies
• Utilize diverse channels (Direct Search, Networking, Referral Programs) to uncover and engage top talent
• Conduct structured interviews evaluating candidates' hard/soft skills, values, and alignment with business goals.
• Ensure a seamless, transparent candidate journey with timely and constructive feedback at every stage
• Track recruiting metrics, optimize hiring funnels, and contribute to employer branding initiatives

We offer

• 21 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays according to the Cyprus Public holiday list
• Flexible working schedule
• Hybrid mode
• Medical insurance
• Extensive relocation package
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

PrimeFox is running a confidential executive search for a Head of Acquisition to join a new iGaming product launching in LATAM.

About the project
The product is built for the main LATAM markets, with Mexico and Brazil as priorities. It runs on its own in-house platform, which gives the team full control over product development, fast delivery and the user experience. It is an ambitious startup inside a stable holding, with the resources, expertise and support needed for an international launch. You will join at the start and help shape the key decisions.

Responsibilities

• Own all player acquisition for the brand.
• Affiliate marketing: strategy, partner network, commercial models, traffic quality and volume.
• Media buying: oversee traffic buying, teams, channels and performance.
• Spend model: plan and control ad budgets, costs and payback.
• Acquisition strategy: scale player acquisition and hit KPIs.
• Analytics: FTD, CPA, CAC, ROI, NGR, LTV and other acquisition metrics.

Requirements

• Strong hands-on experience in iGaming acquisition.
• Experience managing both affiliate and media buying.
• Deep understanding of spend models and acquisition economics.
• Proven experience with LATAM markets, especially Mexico and Brazil.
• Understanding of regulated and unregulated markets.
• Track record of managing budgets, scaling traffic and delivering financial results.
• Management maturity, independence and ownership of results.
• Spotless professional reputation.
• English as your working language. Russian is needed for internal team communication.
• Based outside Russia and Ukraine.

Nice to have

• Spanish.
• A strong professional network in LATAM.
• Experience across several acquisition channels.

What we offer

• Join a new LATAM iGaming product from the very start.
• Real influence on key product and commercial decisions.
• The resources and support of a stable holding.
• Competitive compensation, discussed individually.

Join a high-impact cybersecurity project focused on protecting applications from automated attacks and malicious activity. We are looking for a Senior Data Engineer who thrives in autonomous environments, enjoys solving complex data challenges, and is ready to drive modernization initiatives across scalable data systems.

You will become a core member of a small, highly proactive engineering team working on a large-scale cybersecurity product. The role requires deep involvement in understanding existing systems, including legacy code and interconnected services, identifying inefficiencies and technical gaps, and driving meaningful improvements across the platform. You will collaborate closely with product engineering teams, influence technical decisions, and contribute to both immediate optimizations and long-term platform evolution.

As part of Sigma Software, you will collaborate with experienced international teams and have the opportunity to shape scalable data infrastructure used in cybersecurity products operating at scale. We value ownership, strategic thinking, and technical excellence, offering an environment where engineers can influence architectural decisions, drive meaningful improvements, and continue growing professionally.

CUSTOMER

Our Customer is a global cybersecurity company delivering advanced digital protection solutions for businesses, organizations, and communities worldwide. Operating across multiple cybersecurity domains, the company focuses on identifying vulnerabilities, preventing threats, and strengthening digital resilience through scalable and reliable security products.

PROJECT

The project focuses on developing and improving a cybersecurity solution designed to protect applications from automated attacks and malicious traffic. The team works on scalable, high-performance data infrastructure powering security analytics, monitoring, and detection capabilities. The environment combines modernization of legacy systems with the development of reliable and scalable data workflows, requiring strong ownership and close collaboration with cross-functional engineering teams.

Key Technologies: Snowflake, DBT, SQL, Python, Elastic Stack, Airflow

RESPONSIBILITIES

• Maintain and enhance existing data processes with a focus on reliability, scalability, and performance optimization
• Analyze and deeply understand existing data models, workflows, tables, and processing jobs
• Identify technical gaps, bottlenecks, inefficiencies, and opportunities for architectural improvements
• Design, optimize, and support large-scale data pipelines and transformation processes
• Drive modernization initiatives across the data platform and contribute to long-term architectural evolution
• Optimize complex SQL queries and improve data processing latency and efficiency
• Collaborate with product engineering and cross-functional teams on technical solutions and implementation strategies
• Contribute to both short-term delivery goals and long-term platform development initiatives
• Ensure adherence to best practices in data engineering, system reliability, and performance optimization
• Participate in technical discussions, solution design, and continuous improvement initiatives

REQUIREMENTS 

• 5+ years of commercial experience in Data Engineering
• Expert-level Python skills
• Expert-level SQL skills with practical experience optimizing complex queries for performance and scalability
• Strong hands-on experience with DBT for data transformation and modeling
• Solid understanding of database concepts, including DDL, DML, indexing, normalization, and advanced SQL techniques
• Hands-on experience working with Snowflake
• Experience with Elastic Stack technologies
• Proven experience designing, building, and maintaining large-scale data pipelines
• Strong analytical thinking and problem-solving skills
• Ability to work independently in a high-autonomy engineering environment
• Experience driving technical initiatives from idea through implementation
• Strong communication and collaboration skills
• Upper-Intermediate English level or higher

WILL BE A PLUS

• Experience with Airflow for workflow orchestration

Intetics Inc., a global technology company providing custom software development and digital solutions, is looking for a Technical Coordinator / Solution Engineer to join our team.

We are seeking a hands-on technical professional who will be responsible for deployment, configuration, automation, troubleshooting, and operational support of an enterprise software solution within a secure environment.

This role is ideal for an experienced Infrastructure Engineer, DevOps Engineer, Systems Engineer, or Technical Support Engineer who enjoys solving complex technical problems, working directly with users, and ensuring the reliable operation of business-critical systems.

Responsibilities

• Deploy, configure, and maintain local server-side software components.
• Set up and support application environments, databases, integrations, and supporting infrastructure.
• Develop and maintain automation and orchestration scripts.
• Support data processing, import/export, synchronization, and workflow execution.
• Monitor system health, identify issues, and proactively perform troubleshooting.
• Investigate and resolve setup, configuration, integration, and environment-related problems.
• Work with APIs and connected systems to support data exchange and operational workflows.
• Collaborate with remote engineering and product teams to implement changes and enhancements.
• Maintain technical documentation, operational procedures, and troubleshooting guides.
• Support software releases, upgrades, and infrastructure changes.
• Participate in testing, validation, acceptance activities, and production readiness reviews.
• Train customer-side users and technical personnel when required.

• Act as the primary technical point of contact for operational and support-related matters.

   

Requirements

Required Qualifications

• Strong experience with Linux and/or Windows Server administration.
• Experience deploying, configuring, and supporting enterprise applications.
• Hands-on experience with Bash, PowerShell, or Python scripting.
• Experience with automation and operational support processes.
• Good understanding of networking fundamentals (TCP/IP, DNS, VPN, HTTPS, firewalls).
• Experience troubleshooting application, infrastructure, and integration issues.
• Familiarity with databases and SQL.
• Experience working with APIs and system integrations.
• Strong analytical and problem-solving skills.
• Ability to work independently and communicate effectively with distributed teams.
• English level sufficient for participation in technical meetings and communication with international teams.

Nice to Have

• DevOps, Infrastructure Engineering, or Site Reliability Engineering experience.
• Experience with cloud platforms (AWS, Azure, GCP).
• Experience with Docker, Kubernetes, CI/CD pipelines, or Infrastructure as Code tools.
• Experience with monitoring and observability platforms (Grafana, Prometheus, ELK, Zabbix, etc.).
• Experience supporting secure or highly regulated environments.
• Knowledge of GIS, visualization systems, spatial data, or 3D platforms.
• Customer-facing implementation, deployment, or technical consulting experience.

Work Format

• Long-term project engagement.
• Hybrid work format with periodic on-site meetings in Kyiv.
• Flexible workload depending on project phase, implementation activities, updates, and support needs.

• Increased involvement during deployment, configuration, integration, and acceptance stages.

   

What You Should Know

This is not a pure software development role and not a project management role.

The primary focus is:

• deployment and configuration;
• infrastructure and environment support;
• automation and operational excellence;
• troubleshooting and incident investigation;
• customer collaboration and technical coordination.

We are looking for someone who enjoys taking ownership of technical environments and driving solutions from implementation through long-term support.

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications and regulatory technologies.

We are looking for a Team Lead SMM.

Requirements:

- Relevant Experience: 3–4+ years of experience in SMM/Digital in a leadership role (Team Lead / Head of Social / SMM Director).
- Middle Management Experience: Proven track record of managing managers or team leads, not just individual contributors.
- Data-Driven & Unit Economics: Strong grasp of business metrics (ROMI, CAC, CPA, CPL, LTV, CR). You know how to calculate the ROI of every dollar spent.
- Financial Planning: Experience in media planning, budget allocation, and defending marketing budgets.
- Analytics & Dashboards: Experience with end-to-end analytics and data visualization tools (Tableau, Meta, or advanced Excel/Google Sheets).
- Process-Oriented Approach: Experience implementing goal-setting frameworks (OKRs/KPIs) and establishing interaction workflows (SLAs) with cross-functional departments.
- SMM Expertise: Deep understanding of social media algorithms, targeted advertising principles, content marketing, and reputation management (Brand Safety).

Soft Skills:

- Delegation (Zero Micromanagement): Ability to let go of daily operations. You set goals for managers and monitor key milestones/metrics without manually checking every piece of copy or creative.
- Analytical & Business Thinking: A habit of relying on data rather than intuition to make decisions.
- Persuasion & Pitching Skills: Ability to translate SMM jargon into business language. Capable of justifying to the stakeholders results and initiatives.
- Leadership & Empathy: Ability to mentor managers, conduct high-quality 1-on-1s, resolve conflicts, and prevent team burnout.
- Proactivity & R&D Mindset: Readiness to constantly test new hypotheses, discover unconventional setups, and reject the "we've always done it this way" mentality.

Responsibilities:

1. Strategy Execution & Initiative Development:
- Decomposing the global SMM strategy into actionable roadmaps and tactical plans for the geo's and subordinate units.
- Defining and setting KPIs, OKRs, ensuring goal alignment across all team.
- Generating, providing business justification for, and pitching new initiatives, special projects, and tests.
- Continuously scouting the market and analyzing competitors to implement innovative approaches and formats within the teams.
2. Unit Economics & ROI Management:
- Tactical management of the allocated budget: distributing funds based on their performance and task priority.
- Strict monitoring of business, SMM metrics and audience acquisition, retention costs.
- Making data-driven decisions on scaling or pausing campaigns based on consolidated analytics provided by the Team.
- Preparing financial and resource justifications for the Head of SMM when requesting budget expansions, new hires, or software procurement.
3. Middle Management Leadership & Process Architecture:
- Direct supervision of Managers and Specialists: conducting regular 1-on-1s, performance reviews, and assessing the management effectiveness of their respective subgroups.
- Developing the leadership skills of subordinate Managers, providing mentorship, and assisting in resolving complex team conflicts or escalations.
- With Project Manager designing and optimizing internal business processes: developing SOPs (Standard Operating Procedures) and SLAs (Service Level Agreements) between SMM units and cross-functional departments.
- Ensuring a balanced workload across team and monitoring macro-level deadlines (without micromanaging individual execution).
4. High-Level Quality Assurance (QA) & Brand Safety:
- Implementing and maintaining QA systems for content and communications (conducting high-level audits of unit outputs for Tone of Voice and Visual ID compliance).
- Managing reputational risks (Brand Safety): ensuring teams strictly adhere to crisis response and community management protocols.
5. Analytics & Management Reporting:
- Consolidating performance data from the team into a unified, transparent dashboard system.
- Conducting deep-dive analyses of anomalies (both sudden metric drops and spikes) to identify root causes and patterns.
- Preparing regular executive reports for the Head of SMM, including key takeaways, performance forecasts, and strategic optimization proposals.
 

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.

PrimeFox is looking for a strong Head of Affiliate for a new iGaming project focused on the Argentine market.

The project is preparing for launch. The product covers Casino, Sportsbook and Prediction Market on the SoftSwiss platform. The core infrastructure is already in place, including payment solutions and a local support team.

We are looking for a leader with deep expertise in Argentina, an established affiliate network and a proven record of scaling affiliate traffic.

Key responsibilities

• Develop and execute the affiliate strategy for the Argentine market.
• Build and grow the affiliate acquisition channel from scratch.
• Onboard strong affiliate partners and develop relationships with them.
• Negotiate and agree commercial models: CPA, RevShare, Hybrid.
• Manage traffic volume, quality and acquisition economics.
• Analyze FTD, CPA, NGR, ROI, retention and other performance metrics.
• Work closely with CRM, Product, BI and Finance.
• Set KPIs, forecasts and scaling plans.
• Own the agreed business targets.

What we expect

• Proven iGaming affiliate marketing experience in the Argentine market.
• Your own active network of affiliate partners for this GEO.
• Strong cases of attracting large volumes of high-quality traffic.
• Deep understanding of the Argentine Casino and/or Sportsbook market.
• Strong analytical skills and a solid grasp of iGaming unit economics.
• Experience building or scaling an affiliate department.
• Ability to make decisions independently and take ownership of results.

Nice to have: experience with SoftSwiss, launching iGaming brands from scratch, and expertise in both Casino and Sportsbook.

What we offer

• A role in launching an ambitious new iGaming project in Argentina.
• The opportunity to shape the affiliate strategy and influence commercial results.
• Direct work with the project’s C-level.
• Competitive compensation: fixed salary + performance bonus.
• Individual terms for candidates with exceptional expertise.

Important: we only consider candidates with real hands-on experience in the Argentine market.

If you have a strong partner network, proven results and the drive to build a new iGaming brand from the ground up, we would be glad to hear from you.

Project Responsibilities

Owning the test strategy for a data-collection platform spanning the worker app (WebView inside the main inDrive app), the back office, and backend services, from test plans through release sign-off. 
Testing media capture and upload in real-world conditions: photo, voice, video, and text across a wide range of Android/iOS devices, poor networks, interrupted and resumed uploads, and on-device pre-checks. 
Verifying complex business flows and state machines: task reservation and expiry, quotas and campaign auto-stop, submission statuses, review and rework cycles, labeling consensus, and buyer isolation between segments. 
Ensuring correctness of money and compliance flows: accruals, balances, payout batches and reconciliation, consent versioning and withdrawal, data erasure, and audit trails for every action. 
Building and maintaining end-to-end and API test automation in CI, plus load testing of the task queue and ingestion under peak traffic (e.g. after mass push notifications).

Candidate's Portrait

A QA Fullstack engineer with a strong background in both manual and automated testing, ready to build automation essentially from scratch 
Proficient in Java/Kotlin, with a level sufficient to write and maintain automated tests 
Understands the product’s business risks and can prioritize testing with a focus on money, compliance, and critical user flows 
Comfortable working across the mobile app (via WebView), web, API, and backend services, able to see the full picture 
Self-sufficient, capable of building out test strategy and process for a new product without existing infrastructure in place 
Russian Speaker

Must-haves

Experience in functional, integration, API, and E2E testing across the full user journey: onboarding and consent, task queue, data capture and upload, review, earnings, and payouts 
Automation experience in Java/Kotlin this is a new product with no existing automated tests, and the goal is maximum automation coverage 
Selenium/Selenide + Appium 
Strong experience in API automation (REST and/or gRPC), including tools such as Postman 
Understanding of microservices and event-driven architecture: retries, timeouts, idempotency, duplicate events, eventual consistency 
Experience testing financial flows: accruals, balances, batch payouts, reconciliation with third-party payout providers 
Understanding of data privacy requirements: consent management, data retention, erasure 
Experience testing time- and quota-based logic: TTL-based task reservations, expiry and reassignment, volume limits, targeting by country/language/segment 
Ability to investigate issues using logs, metrics, traces, databases, and message queues (Grafana, CloudWatch, Kibana, Kafka, SQL/MySQL) 
Experience working with CI/CD, Docker, AWS-based environments 
Ability to validate consistency across the mobile app, WebView, back office, backend APIs, and distributed services, and troubleshoot partial failures and partner/service outages 
Experience contributing to test strategy, requirements reviews, release validation, and production issue analysis with a focus on business risk

Nice-to-have

Experience testing media capture and upload on mobile devices (photo, voice, video, text): device fragmentation, permissions, unstable networks, resumable uploads, on-device validation 
Knowledge of JS/TS for automation 
Knowledge of Playwright/Cypress 
Experience testing integrations with external services: authentication, CRM, push notifications, payout partners, LLM providers, cloud storage (S3) 
Experience with load and performance testing (task queues, ingestion under peak load, e.g. after mass push notifications) 
Experience with Appium or other mobile automation frameworks a plus, but not required, as the current priority is API and web automation

About the project

Our client is a fintech company building a new digital banking and payments product from scratch. The platform will cover card and payment processing, integrations with banks and payment providers, and core financial services for end customers.

The product is at an early stage: architecture, team and roadmap are being shaped now, and the scope will be refined together with the team. You will join a mixed team of client and NerdySoft engineers. AI-assisted development is part of everyday engineering.

What you will do

• Design, build and ship backend services for a new event-driven platform
• Build reliable integrations with banking and payment providers - idempotent, traceable and easy to reconcile
• Write clean, well-tested code: unit, integration and contract tests
• Take part in technical design and architecture discussions together with the Tech Lead
• Review code and share knowledge within the team
• Work with AI coding assistants and AI agents in daily development: delegate tasks to agents, review the code they produce and keep it to the team's standards for review and testing
• Follow secure coding practices and security requirements, including PCI DSS
• Support your features in production: monitoring, troubleshooting, fixes
• Communicate directly with the client's engineers and stakeholders

What you bring

• 3+ years of commercial backend development with Java (17+) and Spring Boot
• Production experience with asynchronous, event-driven systems (Kafka, RabbitMQ, AWS SNS/SQS or similar)
• Good knowledge of concurrency and transactions: ACID, isolation levels, locking
• Relational databases (PostgreSQL preferred), JPA / Hibernate, SQL query optimisation
• REST API design and integration with external services: retries, timeouts, idempotency, error handling
• Testing as part of the definition of done: JUnit, Mockito, Testcontainers
• Docker, CI/CD and hands-on AWS (or another major cloud)
• Daily use of AI coding assistants (Claude Code, Cursor, GitHub Copilot or similar): you can show how they speed you up and how you check their output
• English B2+ (Upper-Intermediate or higher): you will communicate directly with the client's team

Nice to have

• FinTech background: banking, payments or lending products
• Card issuing or processing: ISO 8583, authorisation, clearing and settlement, reversals
• Visa or Mastercard integrations
• PCI DSS in practice; secure public APIs (authentication, authorization)
• Ledger systems and double-entry accounting
• DDD, Clean or Hexagonal architecture
• Kotlin, Kubernetes, Terraform

What we offer

• Comfortable workplace and modern office facilities
• Flexible working hours with no overtime and the ability to work remotely
• 50% compensation for certifications, conferences, training
• 50% compensation for English courses
• 18 working days of paid annual leave
• Paid sick leave
• Medical insurance and sports compensation

Company Description

Are you passionate about embedded development and smart connected devices? We are looking for a Middle Embedded Software Developer to join Sigma Software and contribute to the development of innovative IoT-powered smart beverage solutions.
In this remote full-time position, you will work on modern embedded systems that combine real-time firmware, touchscreen interfaces, networking, computer vision, and secure OTA functionality. 
We at Sigma Software create opportunities to work with advanced technologies, distributed engineering teams, and meaningful products used in real-life environments. This role offers the chance to work on cutting-edge IoT solutions while growing your expertise in embedded systems and smart device engineering.
 

CUSTOMER

Our Customer is an international company specializing in IoT-based smart home and lifestyle solutions. The company develops connected products that combine embedded technologies, intelligent automation, safety, and seamless user experience to create modern smart ecosystems for consumers worldwide.

PROJECT

The project focuses on the development of the “Curated House System” — an innovative smart beverage solution that combines embedded systems, intelligent user interaction, and future cloud connectivity. The platform includes touchscreen interfaces, beverage dispensing control, face recognition capabilities, secure OTA firmware updates, and integration with multiple hardware peripherals and sensors.

As part of the project, you will work with both low-level firmware and system-level features to deliver a seamless and intelligent user experience for next-generation smart devices.

Job Description

• Design and implement embedded software components and hardware drivers for displays, cameras, sensors, and actuators
• Develop beverage dispensing logic, including temperature control, pumps, valves, and safety mechanisms
• Implement and maintain secure OTA firmware update functionality over HTTPS
• Develop and optimize embedded graphical user interfaces for LCD touchscreens
• Write clean, maintainable, and efficient C/C++ code
• Debug firmware and perform root-cause analysis on embedded hardware platforms
• Create and maintain technical documentation
• Conduct unit and integration testing on real hardware devices
• Support QA engineers during validation and troubleshooting activities
• Participate in sprint planning, estimation, and Customer communication
• Collaborate with architects, security specialists, and compliance engineers
• Ensure adherence to engineering best practices and quality standards

Qualifications

• At least 4 years of commercial experience in embedded software development using C/C++
• Strong expertise with STM32 and ARM Cortex-M architectures
• Familiarity with embedded platforms from NXP, TI, or Silicon Labs
• Hands-on experience with UART, I2C, SPI, and Wi-Fi communication interfaces
• Solid understanding of networking protocols including MQTT, DNS, DHCP, mDNS, TCP/IP, and UDP
• Experience with FreeRTOS or Zephyr RTOS
• Experience implementing secure boot, OTA updates, checksums, and firmware validation mechanisms
• Experience with bootloader development and firmware update support
• Understanding of cybersecurity principles for IoT and embedded systems
• Strong debugging and troubleshooting skills on real hardware

• Upper-Intermediate or higher English level

   

• WILL BE A PLUS
• Experience with camera integration, image capture, processing, or streaming
• Experience with face recognition technologies or embedded vision SDKs
• Experience with embedded file systems such as FatFS or LittleFS
• Experience with networking stacks such as lwIP
• Background in fluidics control systems, including pumps, flow sensors, or pressure sensors
• Experience working with FPGA or ASIC-based systems

Additional information

PERSONAL PROFILE

• Strong problem-solving and analytical thinking skills
• Ability to work independently and proactively in distributed teams
• Good communication and collaboration skills
• Attention to detail and commitment to engineering quality
• Ability to balance low-level hardware interaction with system-level thinking

We are looking for a QA Engineer to join a team building a real-world asset (RWA) tokenization platform that connects issuers and investors. The platform lets users create, issue, mint, burn and transfer tokens using the ERC-3643 standard on Ethereum.

The product sits at the intersection of digital assets and traditional finance and operates in a highly regulated space, so compliance and security are top priorities. It includes role-based access control, approval quorums, KYC/KYB identity verification, AML transaction and wallet monitoring, and self-custodial wallet integration, with institutional non-custodial wallets planned next.

The testnet is already live, and the team is preparing a restricted mainnet launch in mid-November, followed by a full launch next year.

Responsibilities:

• Own end-to-end testing of the platform, from requirements analysis to release validation;
• Test core blockchain flows: token issuance, minting, burning and transfers, wallet connections and on-chain transactions on testnet and mainnet;
• Test compliance-related functionality: KYC/KYB onboarding, role-based access, approval flows and AML integrations;
• Design and maintain test documentation (test cases, checklists, test plans);
• Develop and maintain automated UI and API tests with Playwright + TypeScript;
• Perform regression, smoke, integration and exploratory testing;
• Identify, document and track bugs in Jira or similar tools;
• Collaborate closely with developers, product managers and the client team;
• Support release processes, including the testnet-to-mainnet launch and post-release verification.

Requirements:

• 4+ years of professional experience in QA;
• Commercial experience testing Web3 / blockchain products (must have): crypto wallets, tokens, transactions, Ethereum or EVM testnets;
• Commercial experience with test automation using Playwright + TypeScript (Cypress is acceptable);
• Strong manual testing skills for web applications;
• Experience with API testing (Postman, Swagger);
• Basic SQL knowledge for data validation;
• Understanding of client-server architecture and SDLC;
• Experience working in Agile/Scrum teams;
• English: Intermediate or higher (written and spoken).

Nice to have:

• Experience with ERC-20 / ERC-3643 tokens or smart contract testing (Hardhat, ethers.js);
• Experience testing KYC/KYB, AML or other compliance flows;
• Fintech or financial services background;
• Mobile testing and mobile automation (Appium or similar).

Bitmedia Labs is an international product company founded in 2014. Today, we’re a team of 150+ specialists working globally, building products used by millions worldwide.

Our work spans two core areas:

Game Development – browser-first games for global audiences, centered on reward-driven progression and long-term engagement.
Digital Advertising – high-performance advertising and affiliate platforms across Web2 and Web3 markets.

We believe great products are built by people who take ownership – shaping direction, making decisions, and seeing their work turn into real impact. Now, we’re looking for Producer to join the team and help us move our products forward.

Requirements:

• Proven track record of successful products — a strong portfolio of shipped and commercially successful games is a must;
• Strong product vision — ability to define a clear vision for a product and communicate it in a way that aligns the entire team;
• Strategic thinking — ability to determine the direction of a project ;
• Business-to-product thinking — strong ability to translate business objectives into product strategy, features, priorities, and measurable outcomes;
• Product sense — deep understanding of player motivation, engagement loops, retention, monetization, and overall product-market fit;
• Data-driven mindset — working with analytics, funnels, cohorts, experiments, and player behavior data;
• Strong leadership and communication skills — ability to align cross-functional teams and stakeholders around a common vision and direction;
• End-to-end product ownership — experience taking products from strategy and concept through development, launch, iteration, and growth.

Responsibilities:

• Set the product direction and vision — define where the project should go and why, based on business strategy, market opportunities, and player needs;
• Translate business goals into product development — turn company objectives, revenue targets, and strategic priorities into clear product goals, features, and development priorities;
• Own product KPIs — define, track, and drive the key metrics that determine product success, ensuring development decisions are aligned with agreed KPIs;
• Drive product strategy and roadmap — build and continuously adjust the product roadmap based on data, market trends, player behavior, and business priorities;
• Align the team around the vision — communicate the product vision clearly to game design, development, art, marketing, analytics, and other stakeholders;
• Make product decisions — identify what should be built, what should be changed, and what should be stopped, prioritizing work based on expected impact;
• Connect product development with business outcomes — ensure that features and initiatives are not developed in isolation but contribute to measurable business and product results;
• Own execution at the product level — maintain alignment between strategy, roadmap, priorities, and actual development progress;
• Work with data and experimentation — use analytics, player behavior, market research, and experiments to validate hypotheses and make informed decisions.

Hiring process:
       • Intro call with a Recruiter — Test task — Interview with the Hiring team — Сollection of recommendations — Offer.

Why join Bitmedia Labs?
We care about what we build — and about the people who build it. Our teams work closely together, share responsibility for the product, and support each other in everyday challenges.

As part of the team, you’ll have:
      • Professional growth through products operating at global scale;
      • The opportunity to experiment, bring ideas to life, and influence product decisions;
      • Collaboration with strong, experienced teammates who value quality and teamwork.
We also support you with:
      • Flexible schedule and the option to work remotely or from our hubs in Kyiv, Warsaw, and Berlin;
      • Competitive compensation, regular performance reviews, paid vacation, sick leave, and public holidays;
     • Modern Apple equipment and thoughtful corporate gifts for holidays and personal milestones;
     • Support for your growth: courses, workshops, and conferences.

Through our charity foundation Bit Spilka, led by volunteers from our team, we support the military, medics, and civilians across Ukraine — delivering over $500,000 in aid to date. Here your work also drives social impact, and you can also join our volunteer initiatives.

If this resonates with you — send your CV and join us.
Let’s foster the world together!

 

We're looking for a Senior Quant Developer for a specialized fintech company that builds front-office software for commodities trade risk assessment. The company was founded in 2015 by alumni of London investment banks and hedge funds. The product is used by traders every day. You would join a developer-driven team that prefers writing new code to maintaining legacy systems. You'd design, build and test core front-office components, data pipelines and market data ingestion tools. This role suits an academically strong engineer who enjoys hard technical problems, and who likes working at a whiteboard with colleagues in the office.

Details

• Location: Warsaw (Powiśle), hybrid, with most days in the office
• Employment: Full-time
• Level: Mid-Senior

What you'll do

• Design and develop front-office components used by traders daily
• Build and maintain data pipelines and ETL processes
• Own market data ingestion: streaming, time-series and high-frequency trade data
• Test your own work and contribute to the technical decisions of a small, specialized team

Requirements

• 5+ years of software engineering experience
• Expert-level Python
• Proven experience with streaming technologies such as Kafka and Redis
• Degree in Computer Science, Mathematics, Physics or a related field
• Strong knowledge of data structures and algorithms
• Ability to work from the Warsaw office most days (fully remote is not possible)

Tech stack

Python, SQL, NoSQL, Kafka, Redis, ETL, Time Series, AWS / Azure

Nice to have

• A PhD
• Experience in financial markets or commodities trade risk
• Cloud experience (AWS or Azure)
• Olympiad achievements (Informatics or Mathematics)
• A degree from the University of Warsaw (JSIM, CS, Math, Physics) or a background at Staszic / Matex

Interview process

1. Informal introduction: a casual chat with the founders
2. Technical assessment: a practical task to see how you code and solve problems
3. Team meeting: meet the people you'd be working with

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Middle FullStack Web Developer.

What we expect from you:
English level: B2 or higher
Experience: 3+ years working with Node.js and React

We offer:

Competitive level of remuneration

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.