Jobs at Djinni

We partner with startups and enterprises to build products across healthcare, fintech, eCommerce, and AI. For you, this means variety - different projects, fresh challenges, and growth that doesn't stall. No years maintaining one legacy codebase.
 

If you want to grow quickly and work on things that actually ship - keep reading.
 

What You'll Do

• Build and ship features - from small tasks to full modules as you grow
• Write clean code and learn best practices through code reviews
• Work alongside experienced engineers who'll help you level up
• Learn how production apps are built and scaled
• See different products and industries - faster learning curve

What We Work With

⚡ Python, FastAPI, Django, Pydantic, PostgreSQL, uv, Ruff, React, TypeScript, Next.js, Tailwind

Gets You Extra Points

• Familiar with SQLModel, Alembic
• Used AI coding tools (Cursor, Claude Code, Copilot)
• Hands-on experience with any LLM integration
• Basic prompt engineering skills

What You Bring

• Solid understanding of Python and basic React/TypeScript
• Understanding of REST APIs
• Basic experience with SQL databases
• English: Intermediate+
• Willingness to learn and take feedback
   

What You Get

Work & Growth:

• Fully remote, flexible hours
• Structured code reviews
• Senior engineers who help you level up
• English practice sessions

Compensation:

• Salary in USD
• Performance reviews twice a year
• 15 days paid vacation + sick leave

Swarmer develops software that makes drones autonomous and allows them to operate together, in large, coordinated teams — no pilots needed. Our technology has been battle-tested in Ukraine — the world’s most intense proving ground for drone warfare.

In March 2026, we became the first Ukrainian defense startup to go public on NASDAQ, following a $15M Series A — the largest investment in a Ukrainian defense tech company since the start of the war.

Working at Swarmer means operating at the intersection of engineering rigor and frontline reality. The problems and environments are complex, and the stakes are very real. We built this software to enable democratic nations to defend themselves.

If you are motivated by building resilient systems that matter and by seeing the direct impact of your work, you’ll find purpose here.

Who we’re looking for:

We’re looking for a Senior Robotics & Autonomy Engineer to design, develop, and optimize the onboard autonomy and perception systems for individual drones on our multi-vendor platform.

You’ll work at the intersection of robotics, computer vision, and embedded systems, making sure each drone operates reliably and intelligently in GNSS-denied, EW-contested conditions.

What you’ll do:

• Develop new features in core domains: navigation, flight control, sensor fusion, and photogrammetry.
• Adapt existing algorithms to new challenges, such as new sensor types or path planning with additional constraints.
• Turn R&D algorithms into production-ready solutions: find bottlenecks, handle edge cases gracefully, and make them reliable in the field.
• Optimize onboard performance for latency, power consumption, and data throughput on a real-time, resource-constrained companion computer.
• Build and maintain simulation environments and digital twins, and measurably close the gap between simulation and real flights.
• Support field tests for your features: work with our test-range team, stay available online during flights, and travel to the test site occasionally.

What we need:

• 4+ years in robotics or autonomy engineering, ideally with UAVs or mobile robots.
• Strong Python on Linux. Experience with C/C++ and embedded systems is highly valued.
• Solid grounding in linear algebra, control theory, probability, and numerical methods.
• Hands-on experience with state estimation, path planning, or flight control algorithms.
• Practical knowledge of drone physics.
• PX4, ArduPilot, or another MAVLink flight stack.
• Basic computer vision or photogrammetry.
• Basic electronics: reading schematics, using a multimeter, debugging sensors and power.
• English at B2 level or higher.

Would be an advantage:

• Contributions to PX4 or ArduPilot, or custom firmware changes.
• Airframe integration: sensor calibration, tuning, flight controller setup.
• VIO, visual navigation, or navigation integrity in GNSS-denied conditions.
• Experience in defense or EW-contested environments.
• You’ve built, flown, crashed and debugged your own drones.

What you’ll get:

• A chance to shape the core autonomy and perception systems at the heart of Ukraine’s defense tech ecosystem and its international expansion.
• Fast-paced, high-stakes environment where your contributions yield immediate, tangible impact on the frontline.
• Agile, highly skilled team driven by engineering rigor and mission-critical goals.
• Attractive compensation package including 20 paid vacation days, comprehensive health insurance, and paid sick leave.
• Flexible working arrangements depending on operational and security requirements.
• Benefits of the defense sector (military reservation, etc.).

What the hiring process looks like:

✔️ Recruiter Screen → ✔️ Technical Interview → ✔️ Management Interview → ✔️ Security check → ✔️ Offer

Ready to Apply?

We're looking for a Business Development & Partnerships Manager for a fast-growing European defence start-up that builds scalable, intelligent air-defence architectures and mass-use interceptors. You would own the company's commercial growth in Eastern Europe. That means building strategic partnerships and driving revenue with defence ministries, NATO bodies and prime contractors. You'd work in a high-autonomy setting, close to the founders, with a real influence on go-to-market strategy.

Details

• Location: Warsaw, Poland (hybrid)
• Employment: Full-time
• Seniority: Mid-Senior
• Languages: Polish and English, both at a professional level
• Offer: Competitive salary, equity and full health coverage

What you'll do

• Define and run the Eastern European go-to-market strategy for next-generation air-defence systems
• Build and prioritise a pipeline with defence ministries, NATO-aligned entities and prime contractors
• Lead tenders and RFPs and navigate long procurement cycles
• Structure strategic alliances and manage key accounts
• Close complex, multi-stakeholder deals from first contact to contract

What you bring

• 5+ years in business development, sales or strategic partnerships
• Commercial experience in defence, aerospace or dual-use technology
• A track record of closing complex, multi-stakeholder deals with long sales cycles
• Professional proficiency in Polish and English
• Comfort working autonomously in a fast-paced start-up environment

Nice to have

• An existing network with European defence ministries, NATO agencies or major primes
• Experience in a start-up or high-growth industrial company

• A technical background or degree in systems engineering, missiles or embedded systems

   

Hiring process

1. Deep-dive interview with the founders
2. Case study
3. One or two reference calls with previous employers
4. In-person visit to France after the full process 

We are looking for an experienced Business Development Manager to grow our network of direct advertisers and media buying agencies, primarily in the US whitehat market.

The ideal candidate has a strong background in performance marketing, an established industry network, and a proven ability to generate new business.

Responsibilities

• Identify and attract direct advertisers and media buying agencies across whitehat verticals (leadgen, insurance, finance, dating, e-commerce, etc.).
• Develop new partnerships and manage the full sales cycle, from prospecting to closing deals.
• Build and maintain relationships with key industry players.
• Negotiate commercial terms and drive revenue growth.
• Identify new business opportunities and expand existing partnerships.
• Collaborate with internal teams to ensure successful client onboarding and campaign launches.

Requirements

• Proven B2B Sales or Business Development experience in performance marketing, affiliate marketing, or AdTech.
• Good understanding of Meta, TikTok, Snapchat and other digital advertising platforms.
• Existing network of direct advertisers and/or media buying agencies focused on US whitehat traffic.
• Strong knowledge of CPA, CPL, ROAS, and performance-based advertising models.
• Successful track record in client acquisition, negotiations, and deal closing.
• Strong communication skills, proactive approach, and results-driven mindset.
• Good command of English.

If you know how to turn industry connections into successful business partnerships, we'd love to hear from you!

About the Role

We are expanding our team and looking for a PHP Developer to join our RnD department. You will work on developing and maintaining internal products, including CRM systems, CMS, marketing tools, and backend services that support multiple business units.
This is an excellent opportunity to work on high-load systems, modern microservice architecture, and large-scale data processing while collaborating with experienced engineers across multiple teams.

Who We Are

Our RnD department is a key driver of innovation in the company, consisting of multiple teams that develop CRM systems, marketing tools, CMS, payment solutions, and internal platforms. We focus on automation, scalability, and performance, building systems that support business growth across multiple products and regions.

Why Join Us?

• You'll work on high-load backend systems that process large volumes of data.
• You'll participate in designing new services and improving existing architecture.
• We use modern technologies, microservices, queues, and cloud infrastructure.
• You'll collaborate closely with architects, DevOps engineers, frontend developers, QA engineers, PMs, and Business Analysts.
• We encourage knowledge sharing, code reviews, and continuous technical improvement.
• You'll have opportunities for professional growth while working on complex engineering challenges.

Requirements
 

Must-Have:

• 2+ years of commercial experience with PHP 7+.
• Strong knowledge of MySQL and PostgreSQL.
• Experience developing REST APIs.
• Experience working with queue systems such as Redis, Beanstalkd, RabbitMQ, or similar.
• Experience with Gitlab/Github.
• Understanding of OOP principles, SOLID, and common design patterns.

Nice-to-Have:

• Commercial experience with Phalcon/Spiral.
• Experience with Kafka or other event streaming platforms.
• Experience with Docker and containerized environments.
• Basic knowledge of Kubernetes.
• Experience working with Elasticsearch or MongoDB.
• Understanding of microservice architecture.
• Experience with CI/CD pipelines.
• Experience working with high-load applications.
• Experience configuring web servers (Nginx).

Responsibilities

• Develop and maintain backend applications and microservices.
• Design, develop, and support REST APIs.
• Work with large datasets and optimize application performance.
• Refactor and improve existing codebase.
• Integrate internal and third-party services.
• Participate in architecture discussions and technical planning.
• Collaborate closely with frontend developers, QA engineers, DevOps, architects, and PMs.
• Participate in code reviews and follow established development standards.

Benefits

• 18 business days of paid vacation + public holidays compensation.
• Insurance Fund of the company.
• Partial coverage of professional courses.
• Coverage of sick leaves, sports activities, and English language courses.

Workload — Full-time
Duration — short-- About 2 months
Location — Romania
Rate up to — 25 USD
Type of the request — Search

📝 Примечание:
We’re looking for two Senior Data Engineers for a short, focused project on a healthcare (pharmacy) patient platform. The core goal is to build and validate a data migration tool that will move patient data from a legacy system to a new platform. The full-scale migration happens later. This phase is about building the tool and proving it on a few test instances. There is also some integration and feature work around refills, messaging, and appointments.

What you’ll do
● Design and build a reusable migration tool for patient records, messages, and appointments
● Define field mappings, transformation logic, and migration sequencing for a legacy source with weak relational structure
● Run test migrations on a small number of instances and produce results reports
● Analyze source data to spot and handle data quality issues, and validate accuracy and completeness
● Document the tool and process so the full migration can be run reliably later
● Support backend integration work, such as a fax-based fallback for refill requests and related admin configuration What you bring
● 8+ years of experience in data engineering, including building migration or ETL tooling
● Strong Python skills for data processing, transformation, and analysis
● Solid Node.js experience for backend services and integrations
● Strong SQL and experience working with messy or loosely structured legacy data
● Experience handling sensitive or regulated data (healthcare/HIPAA is a plus)
● Clear communication and the ability to deliver independently on a fixed timeline

Nice to have
● Experience with patient portals, pharmacy, or healthcare systems
● Familiarity with product analytics or data warehouse tools

We're a multi-asset broker operating across 160+ countries — and we're growing fast in some of the world's most competitive markets. To stay ahead, we need someone who can turn our story into headlines. As our Global PR Specialist, you'll own our media presence end-to-end: building journalist relationships, securing placements in top-tier financial publications, and making sure the world's traders hear about us first.

Responsibilities

• Research global and regional financial media and secure high-value partnership terms
• Build and maintain relationships with editors and journalists to secure organic placements
• Develop and manage a content plan and media placement calendar aligned with company priorities
• Work with journalist request platforms to secure expert commentary opportunities
• Transform analysts' insights into compelling opinion pieces and place them in relevant financial media to build brand authority
• Collaborate with regional managers to align PR activity with local market needs
• Brief content teams, review materials, and oversee the full publication workflow
• Conduct regular competitor media analysis — track where they publish, what topics they cover, and identify gaps and opportunities for our own PR strategy
• Monitor brand mentions across media, track coverage metrics, and report on PR performance

Requirements

• 3+ years in B2C Public Relations
• Proven track record of securing placements in Tier 1 and Tier 2 financial publications
• Solid grasp of brand metrics: SOV, brand sentiment, branded search, non-social reach
• Hands-on experience with media monitoring and outreach tools — Brandwatch, Brand24, Cision, Muck Rack, Mailchimp, HubSpot, or similar
• Comfortable briefing and reviewing creative output (design, content) 
• Solid understanding of how brand awareness feeds into performance funnels
• Basic project management tools (Jira, Asana, Monday, or similar)
• Advanced English — written and spoken

Will be a plus

• Experience in Fintech, CFD/Forex, or Crypto company
• Experience targeting SEA, LATAM, or MENA markets 
• Basic understanding of financial regulations (CySEC, FCA, ASIC)
• Experience working with partnerships
• Experience using AI tools for content scaling or brand sentiment analysis
• Fluency in a second language (e.g., Spanish, French or other relevant to our markets)

We offer

• Join a product built around advanced trading technology and real-time analytics that set us apart in a crowded market
• Be part of a team delivering truly personalized trading solutions to clients across 160+ countries
• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company's approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear and related expenses)

JustMarkets is a global fintech company delivering high-tech trading and investment solutions to millions of clients across 160+ countries since 2012.

We are hiring an CRM & Lifecycle Automation Specialist to building and continuously optimizing full-cycle automated communication funnels (Email, App/Web Push, In-App) to drive LTV growth and reduce churn rate.

You will have direct ownership of the automation and communications architecture and an opportunity to drive Retention & LTV, test hypotheses with full autonomy and zero micromanagement.

Responsibilities

• Map and refine the end-to-end client lifecycle journey based on trading behavior, deposit history, risk tolerance, and platform engagement; create dynamic user segmentations based on real-time event tracking
• Design, build, and deploy automated trigger workflows and drip campaigns using modern CRM/Lifecycle tools; Reviewing and evaluating content from a Retention Marketing perspective within the scope of assigned campaigns
• Cross-functional collaboration with Data/BI/Engineering, Product, and Marketing teams to design compelling promotional offers, ensure accurate behavioral event tracking in the CRM, and implement advanced personalization logic using dynamic tags
• Set up structured A/B and multivariate tests for copy, send times, channel preferences, and incentives; track and report on lifecycle KPIs
• Ensure deliverability hygiene (IP warming, domain health, unsubscribe management) and partner with Legal and Compliance to align communications with regulations (GDPR, CAN-SPAM, local frameworks)
• Hands-on work with HTML/CSS templates, adapting responsive designs across diverse devices, and setting up dynamic content for specific audience segments.
• Regular monitoring of retention metrics, analyzing retention trends, and researching bottlenecks in user burnout and fatigue.
• Competitive analysis to track competitor messaging strategies and identify best practices within our niche.
• Preparing and launching regular and special promotional campaigns in compliance with brand guidelines, layout standards, and legal compliance - acting as a backup specialist

Requirements

• 1.5 + years of hands-on experience with B2C focus in designing and building event-driven automated workflows using modern CRM/ESP tools
• Proven experience executing multi-channel messaging strategies across Email, App-Push, In-App and others.
• Good understanding of how behavioral event data moves (JSON payloads, Webhooks, REST APIs, custom user attributes)
• Solid grasp of domain authentication protocols (SPF, DKIM, DMARC), IP warming strategies, spam filter mechanics, and inbox placement monitoring tools
• Experience in HTML/CSS for responsive email layout debugging and experience using dynamic scripting languages to personalize content based on user data
• Strong build retention cohorts, and analyze funnel performance using analytics platforms
• Proven experience in conceptualizing funnel logic and executing lifecycle campaigns across multiple stages (e.g. Onboarding, Retention, Churn Prevention, Reactivation); conceptualize funnel logic; event mapping experience
• Ability to formulate structured hypotheses and conduct rigorous A/B tests
• Advanced segmentation expertise
• Meticulous attention to detail, empathy for the trader journey, data curiosity and experimentation mindset, cross-functional collaboration skills, proactive troubleshooting, and a balance of speed and systemic quality
• Upper Intermediate English level 

Will be a plus

• Fintech domain or CFD, Crypto/Web3 verticals experience
• Experience synchronized messaging strategies across Web-push, SMS, and Messengers (WhatsApp/Telegram)
• Understanding of how AI tools and automation can be leveraged to streamline routine in retention

We offer

• Direct ownership of the automation and communications architecture
• Opportunity to directly drive Retention & LTV and test hypotheses with full autonomy and zero micromanagement
• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company's approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear, and related expenses)

JustMarkets is a global fintech company delivering high-tech trading and investment solutions to millions of clients across 160+ countries since 2012.

We are looking for a Brand & Creative Manager to shape, protect, and elevate our global brand identity and creative presence across both CFD and Crypto verticals.

As the executive leader of our centralized Brand & Creative department, your mission is to build our brand into a highly trusted, world-class market leader in institutional trading.

By managing skilled Team leads spanning PR, SMM, Creative Production, Global Sponsorships, and Localization, you will orchestrate high-impact global brand campaigns, maximize tier-1 sponsorship activations, and deliver culturally resonant, compliance-vetted creative assets that drive international growth, trust, and brand equity.

Responsibilities

• Lead and manage Team Leads (PR, SMM, Sponsorships, Creative, Localization etc.) across CFD and Crypto/Web3 verticals, set long-term brand goals, and manage multi-million dollar annual budgets
• Direct global PR and SMM strategies to secure Top-Tier media coverage and establish C-suite executives as industry authority figures
• Own global brand architecture, visual identity, and ToV across all channels while enforcing strict financial marketing compliance with Legal
• Scale the internal studio (Graphic, Motion, Video) using Jira queues, DAM systems, and strict SLAs for fast, high-converting asset delivery
• Direct multi-channel social media strategies, trader-driven UGC pipelines, and community engagement to boost social proof and lower CAC
• Act as ultimate brand guardian during PR crises and track brand health metrics (SoV, EMV, sentiment, campaign lift)
• Drive 360° activations for F1 and sports partnerships, including co-branded campaigns, VIP events, IP utilization, and commercial ROI
• Lead campaign localization across 21+ languages using hybrid AI-human workflows to ensure speed, accuracy, and cultural relevance

Requirements

• 5+ years of brand leadership & creative direction with B2C focus
• Experience in leading complex teams and working in multi-market international environment — understanding of regional marketing dynamics (SEA, LATAM, MENA, Europe) to localize campaigns without diluting global brand equity
• Solid experience in PR, SMM and internal Brand operations, crisis communications
• Deep expertise in creation and managing high-volume design/motion/video studios using DAM platforms.
• Understanding of executive positioning in Top-Tier media 
• Proven ability to oversee social strategies, community ecosystems, and trader UGC pipelines
• Mastery of global financial promotion rules (FCA, CySEC, ASIC, VARA) and risk disclaimer standards
• Proficiency in media monitoring tools and analytics to quantify SoV, sentiment, campaign lift, and ROI
• Experience in providing EXPOs and deep knowledge of media support
• Combining enterprise AI translation tools with human workflows
• Crisis Composure: Calm, decisive execution during PR crises, market volatility, or sentiment dips to protect brand reputation
• Cross-Departmental Synergy: Proven track record of aligning bold creative vision with strict Legal/Compliance frameworks and fast-paced BD sales cycles

Will be a plus

• Proven experience in FinTech, CFD/Forex, Crypto/Web3
• Track record of driving high-ROI activations for global sports/F1 partnerships (contract rights, co-branded campaigns, VIP hospitality, EMV calculation)

We offer

• Opportunity to directly drive and influence on Brand architecture, integrating top-tier CDPs, CRMs, DWH environments within our product, and advanced attribution systems across both regulated CFD brokerages, fast-paced Crypto and Web3 businesses lines with full autonomy and zero micromanagement
• High-Impact leadership — ownership and impact on PR, SMM processes within multi-markets areas, direct reporting to the Head of Marketing and C-suite, and full autonomy to scale the core engine room of our global marketing department
• Tax expenses coverage for private entrepreneurs in Ukraine
• Expert support and guidance for Ukrainian private entrepreneurs
• 20 paid vacation days per year
• 10 paid sick leave days per year
• Public holidays as per the company’s approved Public holiday list
• Medical insurance
• Opportunity to work remotely
• Professional education budget
• Language learning budget
• Wellness budget (gym membership, sports gear, and related expenses)

About SKyPRO

SKyPRO has been delivering Identity & Access Management (IAM) solutions for more than 38 years. While we have extensive experience with OpenText Identity Manager, we are continuously expanding into new markets with our own products and modern identity solutions.

One of our flagship products is ACDI (Audit, Compliance & Data Intelligence), a powerful platform that helps organizations collect, analyze, and audit identity-related data across multiple systems.

We're looking for a technically minded person who enjoys working directly with customers, solving problems, and helping improve our product. This is an excellent opportunity for someone who likes combining technical work with customer interaction.

Your Mission

As a Technical Consultant for ACDI, you will support customers throughout the product lifecycle—from demonstrations and installations to troubleshooting and continuous improvements.

Your responsibilities will include:

• Delivering product demonstrations and technical presentations to customers and partners.
• Installing, configuring, and upgrading the ACDI solution in customer environments.
• Providing technical support and troubleshooting product issues.
• Investigating bugs and implementing small fixes or enhancements within the product.
• Assisting customers with integrating ACDI with various data sources, directories, and databases.
• Working closely with the development team to identify, reproduce, and resolve product issues.
• Creating and maintaining technical documentation when needed.
• Participating in customer projects and ensuring successful product deployments.
• Continuously learning new technologies and helping improve both the product and implementation processes.

What We're Looking For

Must have

• Spoken English at B1–B2 level or higher (you will work with international customers).
• 2+ years of experience in a technical IT role (technical support, implementation, consulting, systems engineering, software development, IAM, or similar).
• Experience working with databases, directories, APIs, or system integrations.
• Good troubleshooting and analytical skills.
• Basic to good programming or scripting experience (Java, JavaScript, PowerShell, Bash).
• Understanding of REST APIs, LDAP, SQL, or similar integration technologies.
• Good Linux knowledge.
• Strong communication skills and customer-oriented mindset.
• Ability to work independently and manage multiple tasks.
• Willingness to learn new technologies and grow with the company.
   

Nice to have

• Experience with Identity & Access Management (IAM) solutions.
• Familiarity with OpenText Identity Manager / NetIQ IDM.
• Experience with eDirectory/Active Directory or LDAP directories.
• Linux administration skills.
• Knowledge of Java.
• Experience with Docker or cloud environments.
• German language skills (B1+) are a plus.

What We Offer

• Remote work with flexible working hours.
• Competitive salary based on your experience.
• Personal development through expert coaching and technical training.
• Opportunity to work with innovative IAM technologies.
• An international, open-minded team working with customers worldwide.
• Immediate start.
• 24 calendar days of paid vacation plus paid sick leave.
• Long-term career growth in a company that values technical excellence and innovation.

We are looking for an experienced Senior C++ Engineer to work on large-scale desktop software products. The role focuses on performance optimization, stability improvements, modernization of legacy systems, and development of high-quality desktop applications.

RESPONSIBILITIES

• Develop and maintain C++ desktop application components.
• Implement multithreading and concurrency solutions.
• Analyze and resolve performance bottlenecks.
• Support modernization of legacy codebases.
• Collaborate with architecture, QA, and product teams.

• Utilize AI-assisted development tools to accelerate development and refactoring activities.

   

QUALIFICATIONS

• 5+ years of senior-level C++ development experience.
• Strong expertise in modern C++ (C++14/17/20).
• Solid knowledge of multithreading, concurrency, debugging, and performance tuning.
• Hands-on experience with Qt, CMake, Conan, MSVC, CEF integration
• Strong analytical and problem-solving skills.

WILL BE A PLUS

• Experience with AI-assisted coding tools and workflows.
• Experience in regulated software environments.
• Technical degree or equivalent practical experience.
• German language skills are a plus.

Job Description
8+ years of software development experience, including experience working on complex backend, distributed systems, data infrastructure, or data-intensive projects.
Proven experience designing and developing scalable backend platforms, distributed services, query engines, data-processing systems, or infrastructure components handling large volumes of data or high-throughput workloads.
Strong hands-on experience with Scala, Java, or another JVM-based language, with the ability to work effectively in Scala-based production codebases.
Hands-on experience with Apache Spark, preferably with Scala, for large-scale distributed data processing.
Experience building or working with distributed query engines, SQL engines, or data access/query platforms, such as Trino, Presto, Spark SQL, Hive, or similar technologies.
Hands-on experience with modern data lake and table formats, such as Apache Iceberg, Delta Lake, Apache Hudi, or similar technologies.
Strong understanding of data lake architecture, including table formats, partitioning, schema evolution, snapshots, versioning/time travel, data consistency, transactions, and compaction.
Experience working with large-scale production data platforms, including environments with large numbers of tables, partitions, or high-volume data processing workloads.
Deep understanding of distributed systems, data processing, storage engines, or data infrastructure, including scalability, fault tolerance, concurrency, and performance optimization.
Experience developing and troubleshooting high-throughput, low-latency, production-grade systems.

The role is primarily focused on backend, distributed systems, data infrastructure, and system-level engineering rather than full-stack application development.
Job Responsibilities
Architect & Build: Lead the architecture, design, and implementation of highly scalable, complex backend systems and robust data infrastructure using Scala.
Data Lake Engineering: Design and manage enterprise-grade data lake solutions leveraging Apache Iceberg or equivalent table formats, ensuring optimal data consistency, transactions, schema evolution, partitioning, and compaction.
Performance Optimization: Maximize system throughput, minimize latency, and optimize resource utilization across large-scale distributed data processing systems.
Production Excellence: Systematically diagnose, troubleshoot, and resolve complex, high-impact production and customer-facing infrastructure issues.
Codebase Modernization: Champion the gradual improvement and modernization of a mature, production-critical codebase without causing disruption to active customers or services.
Technical Leadership & Collaboration: Act as a technical authority, fostering strong communication and collaboration across engineering teams to align on technical objectives.
Navigate Ambiguity: Exercise a strong ownership mindset to operate effectively and deliver high-quality outcomes in areas with limited documentation or historical knowledge.
Department/Project Description
We are seeking an expert Data/Backend Infrastructure Engineer with strong distributed systems experience, large-scale data processing, cloud-native architecture, data lake/table formats, query engines, and production systems engineering.

Job Description
7+ years of hands-on development experience, designing and implementing large/complex systems with Scala.
Experience with Apache Spark (or Azure Databricks, or analogue)
Knowledge of modern backend frameworks, scalable software development practices, design patterns, data structures.
Understanding of algorithms and their principles
Good analytical and troubleshooting skills and experience.
Good understanding of SDLC process, version control, code review, continuous integration and automated deployment tools.
Strong background with CI/CD methodology.
Advanced level of English
Experience with Specs2 testing framework is a plus
Cloud service experience (Azure, AWS, GCP) is a plus
B.Sc in Computer Science is an advantage.
Job Responsibilities
Be part of a dynamic team developing a groundbreaking Performance Measurement solution designed to count every song play worldwide, harnessing parallel computing to process extensive data from diverse sources and achieve seamless aggregation at scale.
Solve complex problems at the architectural, coding, and product levels.
Discover creative solutions that balance practicality and innovation, considering both short and long-term goals.
Implement new and exciting features end-to-end in collaboration with the product team.
Collaborate with the US based client team
Department/Project Description
Our client is a global leader in music rights management, serving as an advocate for the value of music. It collects blanket license fees from businesses that use music, entitling those businesses to play or sync any songs from the client's repertoire of over 22.4 million musical works. On a regular basis, the client distributes the money to songwriters, composers, and music publishers as royalties to those members whose works have been performed.

About Us

True Path Leads  is a fast-growing performance marketing company building high-load infrastructure for lead generation at scale. We process millions of events daily across complex integrations with external partners. Quality is critical — and we're looking for a Senior Manual QA Engineer who can own it. 

What We're Looking For

We are looking for an experienced Senior Data Engineer to design, build, and maintain scalable data infrastructure supporting analytics, reporting, machine learning, and business operations.

The ideal candidate has strong experience with data pipelines, ETL/ELT processes, distributed systems, and database optimization, with a focus on reliability, performance, and scalability.

Responsibilities

• Design, develop, and maintain scalable batch and real-time data pipelines.
• Build and optimize ETL/ELT workflows for data ingestion, transformation, and delivery.
• Develop and maintain data architectures supporting analytics, BI, and machine learning.
• Implement and maintain streaming data pipelines using technologies such as Kafka and orchestration tools such as Airflow.
• Design and optimize data models, schemas, and storage solutions across SQL, NoSQL, and analytical databases.
• Ensure data quality through validation, deduplication, normalization, and reconciliation.
• Optimize data pipelines for performance, scalability, latency, and cost efficiency.
• Implement monitoring, logging, alerting, and fault-tolerance mechanisms.
• Troubleshoot production issues involving databases, pipelines, and distributed systems.
• Maintain data contracts, schema compatibility, data lineage, and documentation.
• Implement data security best practices, including access controls, encryption, and PII protection.
• Collaborate with engineering, analytics, product, and ML teams to deliver reliable data solutions.
• Automate infrastructure deployment and maintenance using CI/CD and Infrastructure as Code.
• Participate in architectural decisions and continuously improve data platform reliability and maintainability.

Requirements

• Strong commercial experience in Data Engineering.
• Hands-on experience designing and maintaining scalable data pipelines.
• Strong knowledge of ETL/ELT processes and data integration.
• Experience with batch and real-time data processing.
• Experience with Kafka, Airflow, or similar technologies.
• Strong understanding of relational, NoSQL, and analytical databases.
• Experience with data modeling, schema design, and database performance optimization.
• Understanding of distributed systems, fault tolerance, and high-availability architectures.
• Experience implementing data quality checks, monitoring, and observability.
• Familiarity with CI/CD practices and Infrastructure as Code.
• Knowledge of data security, access management, and sensitive data protection.
• Strong troubleshooting, analytical, and problem-solving skills.
• Ability to collaborate effectively with cross-functional teams.
• Languages: English B2, Russian or Ukrainian — native.

• Located in a European time zone.

   

Nice to Have

• Experience building data infrastructure for machine learning workloads.
• Experience defining SLIs/SLOs for data pipelines.
• Knowledge of data governance, lineage, and compliance practices.
• Experience with capacity planning and infrastructure cost optimization.
• Experience improving or modernizing existing data platforms.

What You'll Get

• Fully remote position within a European timezone.
• Work on high-load, real-world systems with complex data flows.
• Direct collaboration with engineering and product teams.
• Fast-paced startup environment with experienced leadership.
• Competitive compensation based on experience and skill set.
• Clear growth path in a scaling product company.

 Project Description: 

Wireless Standard POS (Point-Of-Sales) (www.b2bsoft.com) is our retail management solution for the Telecom Market. 

It provides thousands of retailers with features and functionalities they need to run their businesses effectively with full visibility and control into every aspect of sales and operations.  

It is simple to learn, easy to use and as operation grows, more features can be added on. 

Our system can optimize and simplify all processes related to retail in this business area.  
 

Few things that our product can do: 

• Robust Online Reporting 
• Repair Management Software 
• 3rd Party Integrations 
• Customer Connect Marketing 
• Time and Attendance 
• Carrier Commission Reconciliation 

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• Requirements:
• Experience in QA 3+ years;  
• Experience of testing web applications; 
• Experience of testing web-services: REST; 
• Strong knowledge of SQL; 
• Good understanding of version control and release management processes; 
• Good understanding of software development life cycle ; 
• Knowledge of test design techniques; 
• Good understanding of client server architecture; 
• Good written and spoken English skills (C1)
• Cooperative and flexible team player 
• Proactive and result-oriented person

Responsibilities 

• Manual testing of web applications (functional, contract, integration, end-to-end testing), including applications integrated into Point-of-Sale, integrated with 3rd parties APIs and applications.  
• Execution of regression and smoke tests;  
• Creation of testing documentation;  
• Participation in internal meetings (sprint plannings, groomings, daily stand-ups, etc), external demos and meetings with stakeholders, customers and partners.  
• Maintenance of testing environments; 
• Assistance in production issues trouble shoot; 

• Generation of great ideas and improvements for our products (this is always welcomed in out team)

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  What we offer?

  As a member of B2B Soft’s QA Team you will collaborate closely with our great Development teams and work with several different testing directions including embedded, web, desktop and mobile.   

• You will have the opportunity to learn and help improve the quality of our deep and complex product architecture by diving into customer needs, working with our Product, Business analytics and Architecture teams, and communicating with Customer representatives. 

   

  From technology standpoint you will use and have a chance to work with the following technology stack: 

  Manual QA Stack: Fiddler, Swagger, Zephyr (a corporate platform for managing tests) and SQL, Postman, REST, SOAP. 

  Automation QA Stack on Python: IDE: PyCharm, Git (Version Control System), Python v.3.6 and higher, knowledge and experience with test frameworks: pytest, behave, selenium, HTML, CSS, SQL, JavaScript. 

  Automation QA Stack on Java: JUnit, Maven, Allure reporting, Rest Assured. 

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  WHO WE ARE:

  B2B Soft is a world leading SaaS solutions provider primarily focused on the Telecom and General Retail Industries. Our innovative product suite delivers Omni channel software and hardware solutions, which leverage Business Intelligence, Artificial Intelligence and Machine learning.   

  Widely recognized as an industry innovator, we service some of the leading worldwide carriers including Altice, AT&T, Boost, GCI, Metro by T-Mobile, T-Mobile, Tracfone, Verizon &Xplornet 

  Founder led and operated for 15+ years, B2B Soft is headquartered in New York City and currently employs over 150 associates worldwide. We’re seeking talented, creative individuals to join our fast paced, rapidly expanding and dynamic team.  If you’re looking for a new challenge with tremendous opportunity for upward mobility at an industry leading tech company, you’ve found your perfect match!