Jobs at Djinni

About Us:

Atto Trading is a dynamic quantitative trading firm at the forefront of global high-frequency strategies. We are seeking a C++ Software Engineer to join our growing team. 

This is a remote-first position based in Ukraine, with occasional in-office presence in Kyiv expected when conditions permit.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 


What You’ll Do:

• Design and deploy performance-critical components for large-scale trading infrastructure.
• Develop high-frequency trading (HFT) systems in C++ with an emphasis on low latency and reliability.
• Write modern, efficient code using the latest C++ standards.
• Interface directly with cutting-edge networking hardware via kernel-bypassing drivers.
• Conduct performance research to push the boundaries of our platform's speed and scalability.
  
   

What We’re Looking For:

• 3+ years of hands-on experience with C++ development.
• Deep understanding of C++ standards (C++14, C++17; C++20 is a strong plus).
• Hands-on experience with Python and/or Bash scripting.
• Proficiency with Linux environments and system-level programming.
• Solid grasp of multithreading, IPC, and concurrent systems.
• Strong skills in latency and throughput optimization, including experience with profiling and PGO.
• Knowledge of OOP and software design patterns.
• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Excellent attention to detail, with a critical and quality-focused mindset.
• Comfortable working independently or in small teams in a dynamic, high-speed environment.
• Strong communication skills and upper-intermediate (or higher) English proficiency.
• Curiosity and passion for financial markets and trading.
  
   

Nice to have:

• Experience developing high-performance, low-latency systems on Linux.
• Familiarity with OS internals and kernel-level networking.
• Understanding of financial instruments such as stocks, ETFs, futures, or options.
• Protocol-level networking knowledge (TCP/UDP/IP stack insights are a plus).

What we Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Healthcare & Sports/gym budget
• Mental health support, including access to therapy
• Paid time off (25 days)
• Relocation support (where applicable)
• International team meet-ups
• Learning and development support, including courses and certifications
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

About Us:

Atto Trading is a dynamic quantitative trading firm at the forefront of global high-frequency strategies. We are seeking a C++ Software Engineer to join our growing team. 

This position is open for relocation for in-office presence to Lisbon, Portugal or remote work from Ukraine, with in-office presence in Kyiv required once circumstances allow.

We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 


What You’ll Do:

• Design and deploy performance-critical components for large-scale trading infrastructure.
• Develop high-frequency trading (HFT) systems in C++ with an emphasis on low latency and reliability.
• Write modern, efficient code using the latest C++ standards.
• Interface directly with cutting-edge networking hardware via kernel-bypassing drivers.
• Conduct performance research to push the boundaries of our platform's speed and scalability.
  
   

What We’re Looking For:

• 3+ years of hands-on experience with C++ development.
• Deep understanding of C++ standards (C++14, C++17; C++20 is a strong plus).
• Hands-on experience with Python and/or Bash scripting.
• Proficiency with Linux environments and system-level programming.
• Solid grasp of multithreading, IPC, and concurrent systems.
• Strong skills in latency and throughput optimization, including experience with profiling and PGO.
• Knowledge of OOP and software design patterns.
• Bachelor’s degree in Computer Science, Computer Engineering, or a related technical field.
• Excellent attention to detail, with a critical and quality-focused mindset.
• Comfortable working independently or in small teams in a dynamic, high-speed environment.
• Strong communication skills and upper-intermediate (or higher) English proficiency.
• Curiosity and passion for financial markets and trading.
  
   

Nice to have:

• Experience developing high-performance, low-latency systems on Linux.
• Familiarity with OS internals and kernel-level networking.
• Understanding of financial instruments such as stocks, ETFs, futures, or options.
• Protocol-level networking knowledge (TCP/UDP/IP stack insights are a plus).

What we Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Healthcare & Sports/gym budget
• Mental health support, including access to therapy
• Paid time off (25 days)
• Relocation support (where applicable)
• International team meet-ups
• Learning and development support, including courses and certifications
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

About Us:

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies, is looking for a Data Engineer to join our team.

We are expanding an international, diverse team with experts in trading, statistics, engineering, and technology. Our disciplined approach, combined with rapid market feedback, allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 

Role Highlights:
We are seeking an experienced Senior Data Engineer to design, build, and maintain our comprehensive Data Lake for a fast-growing number of research and production datasets. This role combines hardware and platform infrastructure expertise with data engineering excellence to support our rapidly growing data assets (~200TB current, scaling ~100TB/year). 
 

Responsibilities:

• Architect and manage high-performance, scalable on-premise data storage systems optimized for large-scale data access and analytics workloads
• Configure and maintain compute clusters for distributed data processing
• Plan capacity and scalability roadmaps to accommodate 100TB+ annual data growth
• Design and implement efficient monitoring and alerting systems to forecast growth trends and proactively react to critical states
• Design, create, automate, and maintain various data pipelines
• Enhance existing and setup new “data checks” and alerts to determine when the data is “bad”
• Design and implement a comprehensive on-premise Data Lake system connected to VAST storage solution for normalized market data across:
  • US Equities, US Futures, and SIP feeds
  • Other market data sources that will be further added
  • Security Definition data for various markets
  • Various private column data
• Build and operate end‑to‑end data pipelines and SLA/SLO monitoring to ensure data quality, completeness, and governance
• Analyze existing data models, usage patterns, and access frequencies to identify bottlenecks and optimization opportunities
• Develop metadata and catalog layers for efficient data discovery and self‑service access
• Design and deploy event‑driven architectures for near real‑time market data processing and delivery
• Orchestrate ETL/ELT data pipelines using tools like Prefect (or Airflow), ensuring robustness, observability, and clear operational ownership
• Ensure fault tolerance, scalability, and high availability across existing systems
• Partner with traders, quantitative researchers, and other stakeholders to understand use cases and continuously improve the usability, performance, and reliability of the Data Lake  

Requirements:

• 5+ years of experience in data engineering or data platform roles
• Proven experience with large‑scale data infrastructure (hundreds of TBs of data, high‑throughput pipelines)
• Strong understanding of market data formats and financial data structures (e.g., trades, quotes, order books, corporate actions)
• Experience designing and modernizing data infrastructure within on-premise solutions
• Bachelor’s degree in Computer Science, Engineering or related field required; Master’s degree preferred or equivalent practical experience

Tech Skills:

• Data Engineering - Spark, Iceberg (or similar table formats), Trino/Presto, Parquet optimization
• ETL pipelines - Prefect/Airflow or similar DAG-oriented tools
• Infrastructure - High-performance networking and compute
• Storage Systems - High-performance distributed storage, NAS/SAN, object storage
• Networking - Low-latency networking (aware about DPDK and kernel bypass technologies. Data center infrastructure basics
• Programming - Python (production‑grade), SQL, building APIs (e.g., FastAPI)
• Data Analysis - Advanced SQL, Tableau (or similar BI tools), data profiling tools

Nice to have:

• Experience in HFT or financial services
• Background in high‑frequency trading (HFT) or quantitative finance

What we offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Healthcare & Sports/gym budget
• Mental health support, including access to therapy
• Paid time off (25 days)
• Relocation support (where applicable)
• International team meet-ups
• Learning and development support, including courses and certifications
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches
   

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

About us:

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies.
We are expanding an international, diverse team with experts in trading, statistics, engineering, and technology. Our disciplined approach, combined with rapid market feedback, allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort. 

Role Highlights: 

We’re looking for a Junior Talent Sourcer / Recruiter to help identify and engage exceptional technical and quantitative talent. You will support sourcing, outreach, and interview coordination while learning to operate in a fast-paced, high-standard environment. 
This role is ideal for someone ambitious, detail-oriented, and motivated by performance and impact.

Please note: This role requires in-office presence in one of our locations - Kyiv, Ukraine or Lisbon, Portugal.

Responsibilities: 

• Build and maintain candidate pipelines for highly selective technical roles (quant research, software engineering, trading operations, infrastructure) to support current and future hiring needs.
• Proactively source, identify, research, and engage active and passive candidates via LinkedIn, GitHub, Djinni, job boards, referrals, and niche communities (quant, code/dev, competitive programming), leveraging creative sourcing strategies (Boolean search, social networks, community channels).
• Identify and shortlist relevant profiles based on experience, achievements, tech stack, and location.
• Conduct initial screening, including resume evaluation against role requirements.
• Run outreach campaigns and manage candidate engagement, including personalized messaging, follow-ups, screening requests, and pipeline nurturing.
• Partner with senior recruiters and hiring managers to support the full recruitment cycle, including interview coordination, scheduling, and calendar management.
• Maintain and update the ATS, ensure accurate daily candidate status tracking, and support overall pipeline hygiene.
• Support market and talent research (hiring trends, layoffs, competitors, new sourcing channels).

Requirements:

• Bachelor’s Degree.
• Upper-Intermediate or higher level of English.
• 2+ years of experience in technical recruitment, talent sourcing, or recruitment coordination in a fast-paced environment (software, fintech, gamedev or similar).
• Experience sourcing/recruiting in the US market.
• Proactive sourcing skills (LinkedIn Recruiter, Boolean search).
• Proficiency with modern recruiting tools (including LLM-based tools).
• Experience with ATS (Greenhouse, Lever, or similar) is highly beneficial.
• Strong communication and negotiation skills.
• Ability to work independently, proactively in a fast-paced, high-performance environment with high-quality standards.
• Strong organizational skills, attention to detail.
• Ownership mindset.
• Interest in the trading domain will be a plus.

What We Offer:

• Competitive compensation package
• Performance-based bonus opportunities
• Paid time off (25 days)
• Healthcare and sports/gym budget
• Mental health support, including access to therapy
• Relocation support (where applicable)
• Learning and development support, including courses and certifications
• Clear growth opportunities within the recruitment team
• Access to professional tools, software, and resources
• Fully equipped workstations with high-quality hardware
• Modern office with paid lunches
• International team meet-ups

Our motivation:

We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, allowing you to make a real impact on our company's growth.

Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

oin Our Team at CRMOZ — Where Innovation Meets Growth! 🌟
At CRMOZ, we’re more than just a partner of Zoho Corp for over 10 years — we’re a global leader in Zoho solutions, helping businesses thrive through seamless integrations, automation, and support. We’re looking for a Junior IT Sales Manager to join our fun, diverse, and supportive team.
What We’re Looking For:
A passionate go-getter who’s eager to dive into the world of IT sales and business development.
No prior Upwork experience required — if you’re new to it, we’ll help you get started!
A social media and tech-savvy person (bonus if you’ve used LinkedIn Sales Navigator before).
Someone with strong communication skills and the ability to craft personalized and engaging messages that connect with clients.
Fluent in English, both written and spoken — because we communicate with clients worldwide!
A multitasker who thrives in a fast-paced environment, keeping track of multiple projects.
A detail-oriented problem solver who knows how to manage their time effectively.
What You’ll Be Doing:
Hunt for new opportunities on Upwork and match them to our skill sets and services.
Respond to incoming customer inquiries, understanding their needs, and suggesting solutions.
Write custom proposals that engage our potential clients and secure deals.
Provide initial consultations and guide clients through how we can help them succeed with Zoho.
Present rough estimates to clients (we’ll help you with the details and technical support).
Keep communication flowing between the client and our internal teams to ensure smooth delivery.
Upsell and cross-sell additional services to increase the value we provide to our clients.
Why CRMOZ is the Place to Be:
🌍 Work remotely — we embrace a full-time schedule.
💸 Competitive pay with a sales bonus for every successful deal.
📚 Free English courses to keep improving your skills.
🤝 Mentorship from industry experts to help you grow and succeed.
🎉 Paid time off — because we believe in work-life balance!
🌱 Endless growth opportunities — we love to promote from within, so if you want to climb the ladder, we’ll be here cheering you on!
How We’ll Support You:
You won’t be alone! Our mentorship program ensures you have the tools, guidance, and confidence to thrive. You’ll work closely with your Team Lead and other experts.
Onboarding will take you step-by-step through the process, and we’ll make sure you feel comfortable with our systems before you take the lead.
Ready to join a company that values your growth and success?
Apply now, and let’s get started on this amazing journey together!

About CRMOZ

Welcome to CRMOZ, a leading company dedicated to transforming the way businesses operate through seamless integration of cloud-based solutions. As official partners of ZOHO Corp., we pride ourselves on delivering innovative tools and strategies to fuel our client’s growth. With a strong emphasis on remote work, a friendly and collaborative team culture, and a range of enticing perks, joining our team is an opportunity you won’t want to miss!

ZOHO is our specialty. We’re experts in implementing Zoho products with more than 7 years of experience, expanding the core functionality of Zoho CRM and other apps of the Zoho One bundle

Our team of Zoho Experts can develop custom integrations for any business needs.
We automate sales, marketing, and business processes and standardize working methods.

• Project Description:

  As a support engineer, you will be first point of user engagement, providing thoughtful day-to-day comprehensive technical support to users from initial challenge through resolution. This will include talking the user through account set up, to troubleshooting and resolving all technical issues. In this role, you will provide your insight and execution to drive the optimal user experience by phone call, email and remote assistance.

• Responsibilities:

  - Provides technical support and troubleshooting to network, desktop, and/or systems hardware and software.
  - Screens, refers and diagnoses internal inquiries and work requests as they relate to maintenance of personal computers and related systems.
  - Installs, configures, and upgrades computer hardware and software.
  - Provides end-user software troubleshooting and support.
  - Applies advanced diagnostic techniques to identify problems, investigate causes, and recommend solutions.
  - Provides troubleshooting and support.
  - Provides phone and help-desk support for local and off-site users.
  - Provides guidance and work leadership to less-experienced technicians, and may have limited supervisory responsibilities
  - Maintains current knowledge of relevant technologies as assigned.
  - Participates in special projects as required.

• Mandatory Skills Description:

  Windows server/AD/DHCP administration (accounting, policy handling, etc...)
  - Windows workstation admin (OS install, security patches, etc...)
  - Application software development install / maintain
  - Networking knowledge & troubleshooting + network related services ( proxy, DNS, WSUS)
  - Troubleshooting hardware problems
  - Excellent troubleshooting skills in complex software and hardware problems
  - Knowledge of structured cabling systems, able to design SCS fit out.
  • Non-technical skills
  - English language at least medium level
  - Ability to meet deadlines, manage multiple priorities and handle sensitive and pressured situations
  - Strong verbal and personal communication skills
  - Accuracy and Attention to details
  - Problem analysis, use of judgment and ability to solve problems efficiently
  - Verbal communication skills
  - Tolerant and flexible to different situations

• Nice-to-Have Skills Description:

  - VDI environment administration
  - Basic scripting knowledge
  - Basic Linux admin ( OS install, basic config )
  - Familiar with hardware tools like servers, printers, VoIP, UPS, networking and telecommunications devices

About

EdSpan is an innovative EdTech company dedicated to creating cutting-edge learning experiences that empower the next generation of students. Our collaboration with a US-based private school network helps us better understand user needs while expanding our B2C and B2B products to a broader audience. Our current focus includes an AI-guided tutoring experiences, a peer-to-peer tutoring platform, and a custom learning management system.

We operate within a framework of clearly defined processes supported by automation for routine tasks, and open, productive collaboration across the team. Our workflows are based on Agile principles, with daily stand-ups, bi-weekly sprints, and other key Scrum practices. At the same time, we keep meetings to a minimum to ensure everyone can stay focused on delivering high-quality results and continuing to grow professionally.

Requirements

• 4+ years of NodeJS experience (any of TypeScript-based frameworks)
• 3+ years of Angular experience (including Angular Material and RxJS)
• Good understanding of OOP principles and best practices (DRY, KISS, SOLID)
• Familiarity with Domain-Driven Design (DDD)
• Strong knowledge of relational databases (MySQL, PostgreSQL, etc.) and good understanding of non-relational databases (Redis, OpenSearch, or other)
• Practical experience with Docker, docker-compose, and CI/CD pipelines
• Experience writing unit and integration tests

• Intermediate level of English (B1) or above

   

Would be a plus

• Hands-on experience working with Large Language Models (LLMs) - third-party integrations or hosted models, Retrieval-Augmented Generation (RAG) pipelines, LLM Engineering Platforms
• Practical knowledge of cloud infrastructure (AWS or other providers) beyond basic object storage and compute instances

• Familiarity with real-time communication technologies such as WebSockets or WebRTC

   

Responsibilities

• Lead the development of our NodeJS services, implement new features following architecture guidelines, review the code of your peers
• Write code following best practices, common design patterns, and Domain-Driven Design ideas
• Integration with 3rd party services (including LLMs, Payment Service Providers, Text-to-Speech, realtime communication and more)
• Debug and fix issues on staging and production environments
• Preparing Swagger schema definitions and implementing automated tests
• Scope decomposition and task estimation
• Participate in daily meetings and other scrum rituals

If you’re excited about building drones from the ground up and improving their performance — this role is for you. 

You’ll work hands-on with UAV hardware, assembling, soldering, and testing components, contributing to the modernization and reliability of drone systems.

About the opportunity:
● The product company  is looking for a Drone Engineer to assemble, solder, and maintain UAV hardware used in autonomous swarm systems.
● Company builds AI-powered autonomous swarm solutions for UAVs, independent of specific manufacturers, minimizing human risk. Their software has proven itself across tens of thousands of missions.

● In September 2025, the company raised a $15M investment round.
● The Drone Engineer will take part in the assembly, integration, and improvement of UAV systems — including soldering, replacing components, and supporting ongoing R&D for new drone designs and upgrades.

Work format: B2B.

► Key requirement: experience in UAV assembly, soldering, and testing of electronic modules; spoken English.

Philip Morris Ukraine, on behalf of its Partner, is looking for an AI Solutions Engineer. 
 

What You’ll Do:

• Translate Business Vision into Intelligent AI Solutions
  Analyze business requirements and translate them into machine learning or AI-driven solutions. Formalize problem statements, define success metrics, and propose optimal technical approaches aligned with business objectives.
• Drive Innovation with Emerging AI Technologies
  Research emerging AI approaches and implement best practices within the team. Evaluate new models, frameworks, and architectural patterns with a strong focus on business impact.
• Design High-Impact LLM & Prompt Strategies
  Develop prompt strategies and LLM-based pipelines. Optimize prompt structures, manage contextual inputs, and build stable interaction flows with large language models.
• Build Advanced RAG & Embedding Architectures
  Work with RAG architectures, embedding models, and vector databases. Design retrieval pipelines that ensure relevance, accuracy, and scalability of AI-powered solutions.
• Ensure Generative AI Quality & Reliability
  Evaluate generative model performance, including hallucination rates and response relevance. Establish testing, monitoring, and continuous improvement practices for LLM-based systems.
• Build Scalable ML & AI Solutions
  Develop and optimize large-scale data pipelines using advanced machine learning and AI. Create predictive models for segmentation, personalization, and behavioral forecasting—continuously improving accuracy and performance.
• Be a Strategic AI Partner Across Teams
  Collaborate with product managers, analysts, and developers to align on solution design and implementation. Support cross-functional decision-making by balancing speed, quality, and scalability.
   

Who Are We Looking For?
 

Hard Skills

• Higher Education in Computer Science, System Analysis, Informatics, Mathematics.
• 2+ years of experience translating complex business problems into actionable insights through hands-on analytics.
• 1.5+ years of experience in data science, machine learning, and predictive modeling.
  1.5+ years of Experience with LLMs, NLP, STT, RAG etc.
• Strong SQL and Python skills (e.g., NumPy, Pandas, scikit-learn, Matplotlib).
• Experience with BI tools like Power BI, Looker or Tableau is a plus
• Solid understanding of the ML lifecycle — from EDA to production deployment.
• English: Upper-Intermediate or higher.
   

Soft Skills

• High level of autonomy, ownership, and accountability.
• Excellent communication skills — able to explain complex ideas clearly.
• Passion for solving meaningful problems and improving consumer experience.
• Curiosity and drive to stay ahead in the fast-evolving analytics and AI landscape.
   

What We Offer: 

• Work with well-known global brands that have a strong history but are still open to trying new ideas.
• An easy entry into a global corporation with stability and long-term growth opportunities.
• A young, friendly, and experienced team that supports learning and development.
• Challenging and meaningful tasks are shaped by a highly regulated industry, where every solution requires creativity and smart problem-solving.
• Competitive level of compensation & social package.

As a support engineer, you will be first point of user engagement, providing thoughtful day-to-day comprehensive technical support to users from initial challenge through resolution. This will include talking the user through account set up, to troubleshooting and resolving all technical issues. In this role, you will provide your insight and execution to drive the optimal user experience by phone call, email and remote assistance.

• Responsibilities:

  - Provides technical support and troubleshooting to network, desktop, and/or systems hardware and software.
  - Screens, refers and diagnoses internal inquiries and work requests as they relate to maintenance of personal computers and related systems.
  - Installs, configures, and upgrades computer hardware and software.
  - Provides end-user software troubleshooting and support.
  - Applies advanced diagnostic techniques to identify problems, investigate causes, and recommend solutions.
  - Provides troubleshooting and support.
  - Provides phone and help-desk support for local and off-site users.
  - Provides guidance and work leadership to less-experienced technicians, and may have limited supervisory responsibilities
  - Maintains current knowledge of relevant technologies as assigned.
  - Participates in special projects as required.

• Mandatory Skills Description:

  Windows server/AD/DHCP administration (accounting, policy handling, etc...)
  - Windows workstation admin (OS install, security patches, etc...)
  - Application software development install / maintain
  - Networking knowledge & troubleshooting + network related services ( proxy, DNS, WSUS)
  - Troubleshooting hardware problems
  - Excellent troubleshooting skills in complex software and hardware problems
  - Knowledge of structured cabling systems, able to design SCS fit out.
  
  • Non-technical skills
  
  - English language at least medium level
  - Ability to meet deadlines, manage multiple priorities and handle sensitive and pressured situations
  
  - Strong verbal and personal communication skills
  - Accuracy and Attention to details
  - Problem analysis, use of judgment and ability to solve problems efficiently
  - Verbal communication skills
  - Tolerant and flexible to different situations

• Nice-to-Have Skills Description:

  - VDI environment administration
  - Basic scripting knowledge
  - Basic Linux admin ( OS install, basic config )
  - Familiar with hardware tools like servers, printers, VoIP, UPS, networking and telecommunications devices

Location: Kyiv, Ukraine
Work format: Hybrid (4 days in the office, 1 day remote)
Company: WorkTime

About WorkTime

WorkTime is a SaaS company providing a non-invasive employee monitoring and productivity platform that is fully GDPR & HIPAA compliant. Our solution helps businesses gain actionable insights while maintaining transparency and trust.

We are looking for a Middle Technical Support Specialist who will act as a technical point of contact between customers and our product/engineering teams.

Responsibilities

• Provide technical support for the WorkTime platform (email, chat)
• Investigate and resolve technical issues related to:
  • Web application behavior
  • System configurations
  • Integrations and APIs
• Analyze logs, error messages, and system data to identify root causes
• Reproduce bugs and prepare clear, structured technical reports for the development team
• Work closely with Engineering, QA, and Product teams during incident resolution
• Assist with technical onboarding and advanced configuration questions
• Maintain and improve technical documentation and knowledge base articles
• Participate in improving support workflows and incident response processes

Requirements

• 2+ years of experience in Technical Support / Product Support / L2–L3 Support in a SaaS environment
• Strong understanding of how web-based systems work
• Hands-on experience with:
  • REST APIs (requests, responses, authentication)
  • HTML/CSS (basic level for troubleshooting)
  • Logs and error analysis
• Basic understanding of databases (queries, relations, data structure concepts)
• Ability to clearly explain technical issues to both technical and non-technical stakeholders
• English level B1 or higher (written)
• Strong analytical thinking and attention to detail
• Ability to work independently and manage multiple technical issues simultaneously

Nice to Have

• Experience with B2B SaaS products
• Familiarity with monitoring/analytics or employee productivity tools
• Understanding of GDPR, data privacy, or security best practices
• Experience collaborating directly with engineering teams

What We Offer

• Competitive salary in USD based on experience
• Hybrid work model: 4 days in the Kyiv office, 1 day remote
• Highly professional result-oriented environment
• Stable growing company, 20+ years on the market

Project Description 
We are transforming our fleet management platform and data processing infrastructure from a monolithic application to a modern, event-driven microservices architecture. This includes shifting from a tightly coupled relational database to a scalable, multi-tenant event stream platform and Kubernetes operators development. 

Job Description 

We are seeking an experienced Go Backend Engineer to join the team responsible for transforming the platform into a multi-tenant, event-driven architecture. The ideal candidate has deep hands-on experience with Go microservices, distributed data flows, and Kubernetes-based deployments in cloud environments. 

This role involves designing and developing backend services, integrating real-time messaging pipelines, ensuring high observability standards, and collaborating with platform, data, and DevOps teams. 

Technical Requirements 

• 5+ years of backend software development experience. 
• Strong professional experience with Go (Golang). 
• Practical experience designing or maintaining microservices. 
• Experience with event-driven messaging systems such as Apache Pulsar (preferred), Kafka, or NATS. 
• Hands-on knowledge of Kubernetes, including deployments, scaling, and configuration. 
• Familiarity with cloud platforms (AWS, GCP, or Azure). 

Cloud & Deployment 

• Hands-on knowledge of Kubernetes, including deployments, scaling, and configuration. 
• Practical experience with Kubernetes operators, CRDs, Helm. 
• Understanding of cloud CI/CD systems and delivery pipelines (GitHub Actions). 

Data 

• Experience with PostgreSQL and Redis. 
• Understanding of Data Engineering concepts, including ETL/ELT and streaming workflows. 

Nice to Have 

• Experience with C/C++ (networking, concurrency, high-performance systems). 
• Experience with Python, especially for data workflows. 
• Experience with the Ruby on Rails ecosystem. 
• Experience designing and building multi-tenant data architectures. 
• Experience implementing observability stacks (Prometheus, Grafana, OpenTelemetry). 

Responsibilities 

• Design, implement, and maintain Go microservices powering the data platform. 
• Integrate services with Apache Pulsar (or equivalent streaming tools) to support real-time data distribution. 
• Ensure observability and reliability through logging, metrics, and tracing. 
• Deploy and maintain services in Kubernetes environments across cloud platforms. 
• Collaborate with Data Engineering, Platform, and DevOps teams during the architecture and implementation stages. 
• Participate in technical discussions, code reviews, and performance optimizations. 

About the Mission

We are building an AI-driven payments ecosystem designed to transform a $50B industry still dominated by slow, legacy processors. As Head of ISO, your mission is to architect, lead, and scale our merchant acquisition engine. You will set the commercial direction, build high-performing processes, and drive measurable revenue impact - first through hands-on execution, and then by leading automated, scalable systems you help define.

What You’ll Do

• Architect and launch the ISO function end-to-end: strategy, operating model, tooling, and execution;
• Own the full merchant pipeline: prospecting → qualification → underwriting coordination → negotiation → closing → onboarding/activation;
• Define and refine commercial fundamentals: pricing strategy, merchant segmentation, and offer frameworks aligned with risk and margins;
• Build scalable operational workflows and enforce portfolio health ratios (chargebacks, fraud, dispute rates), in close coordination with Risk/Compliance and Processing partners;
• Map and manage banking/acquiring coverage (“bank mapping”) and route merchants to the right partners based on vertical, geography, and risk profile;
• Build and maintain relationships with PSPs, acquirers, and key commercial partners to unlock approvals, improve conversion, and expand capacity;
• Standardize playbooks, scripts, and governance, ensuring every opportunity is tracked, advanced, and optimized for conversion;
• Drive process automation with Product & Engineering: convert manual tasks into AI-powered workflows across outreach, qualification, CRM hygiene, and reporting;
• Recruit, develop, and lead the ISO team, creating a high-performance culture centered on consistency, accountability, and results;
• Deliver advanced reporting, forecasting, and KPIs to leadership; act as a senior commercial partner shaping revenue strategy and growth targets.

You’re a Strong Fit If

• You’ve built or scaled an ISO/merchant services function and know what “from zero to repeatable engine” looks like;
• You have strong domain understanding of underwriting, processing economics, risk, and portfolio management;
• You are equally comfortable leading and executing - entrepreneurial, hands-on, and operationally rigorous;
• You thrive in fast-changing environments, build structure quickly, and drive predictable outcomes at scale;
• You operate with urgency, handle high-stakes initiatives, and take full ownership of results.

Required Skills

• Extensive experience in ISO / merchant services / payment processing, ideally with proven ISO build/launch exposure;
• Track record of closing complex merchant deals and managing merchant portfolios with strong risk awareness;
• Ability to define pricing/segmentation and align commercial execution with underwriting and partner constraints;
• Strong operational discipline: scalable workflows, CRM governance, forecasting, and KPI-driven management;
• Excellent communication, negotiation, and relationship management; leadership maturity and resilience.

Nice-to-Have

• Experience in fintech, SaaS, or payment technology environments;
• Familiarity with CRM systems, outbound engines, or automation workflows;
• Background in building or managing distributed commercial teams.

Why This Role Matters

• Shape the commercial backbone of a fast-moving, high-impact payments ecosystem.
• Direct access to founders and leadership, with zero bureaucracy and high decision velocity.
• Full ownership and autonomy: you build the system, the team, and the results from scratch.
• Competitive compensation with significant performance-based upside.
• A rare opportunity to lead innovation in one of the most lucrative and underserved segments of fintech.

N-iX is looking for a Lead/Senior Kotlin Engineer to join our team.

Our customer is a fintech company that provides flexible buy-now-pay-later solutions, enabling consumers to split purchases into transparent, interest-free, or interest-based payments. The customer's Platform team is responsible for managing critical services that are essential to the success and sustainability of the organization. 

In simple terms, the team handles transactional communication send-outs to customers via email, SMS, and push notifications. These services demand attention to detail, proactive maintenance, and swift response times to ensure seamless operations. 

The recent high-priority initiatives include re-architecture/platform modernization, high availability, and internationalization efforts; these are vital for our organization's growth and competitiveness in the market. These initiatives require dedicated expertise and resources to execute efficiently and effectively.

Main Responsibilities:

• Design and develop a robust and extensible Kotlin framework and platform.
• Own and deliver quarterly goals by leading engineers through ambiguity to solve open-ended problems while ensuring team support throughout delivery.
• Collaborate across the product development lifecycle with product management, design, and analytics to participate in ideation and articulate technical constraints.
• Drive decision-making and risk assessment by partnering on strategic technical choices that properly consider trade-offs and business impact.
• Proactively identify and resolve systemic issues across projects, processes, and technology, advocating for and leading the implementation of solutions.
• Ensure operational excellence and availability by creating and monitoring metrics, supporting "keep the lights on" efforts, and participating in an on-call rotation.
• Foster a culture of quality and ownership by setting high standards for code reviews and design, and advocating for best practices through technical writing and talks.

• Mentor engineering talent by providing actionable feedback, guidance, and leading by example to grow the team's capabilities.

   

Role Requirements:

• At least 5 years of proficiency in Kotlin with extensive experience designing, developing, and launching backend systems at scale
• Deep experience with distributed systems and high-availability architectures
• Experience in technical leadership in system design, with a proven ability to deliver significant features using elegant, simple, and extensible designs
• Strong infrastructure knowledge, including technologies such as AWS, MySQL/DynamoDB, and Kubernetes
• Proficiency in large-scale codebase management, utilizing a suite of tools and practices that ensure safe and efficient technical changes
• Experience in operational monitoring, including the use of metrics and tracing to maintain system health
• Excellent collaboration skills for effective partnership with global, cross-functional engineering teams
• Well spoken and written knowledge of the English language (C1)

In this role, you will be a key member of the team that manages user identities and provides appropriate access to resources across all of product infrastructure. You will move beyond legacy on-premise operations to build our next-generation, cloud-native identity fabric.

The goal is to establish Microsoft Entra ID as the central control plane, ingesting identity information from corporate systems and applying automated roles and policies to govern access to our multi-cloud production environment (Azure & GCP). 

Automation is your primary deliverable: you will help build robust JML (Joiner-Mover-Leaver) workflows and manage RBAC as code to ensure systems are secure by default, providing engineers with a seamless, self-service experience.

Responsibilities:

• Design and automate identity lifecycles: Architect and build end-to-end Joiner, Mover, and Leaver (JML) workflows using Microsoft Entra ID, Lifecycle Workflows, and custom automation to ensure zero-touch provisioning and immediate de-provisioning.
• Implement Identity as Code: Manage all Role-Based Access Control (RBAC), Conditional Access policies, and PIM configurations using Terraform and version control systems.
• Engineer Modern Access Controls: Implement advanced Entra features such as Privileged Identity Management (PIM), Just-in-Time (JIT) access, and Workload Identity Federation in a robust and scalable manner.
• Develop Automation Tooling: Write production-quality code (Python, or PowerShell) to interact with the Microsoft Graph API for complex identity tasks that cannot be solved via native configuration alone.
• Partner Cross-Functionally: Collaborate with security, compliance, and engineering teams to ensure that all automated access activities are logged, monitored, and properly audited.
• Mentorship & Trends: Evaluate new Entra ID features (Governance, Verified ID, etc.) for adoption and mentor junior engineers in IaC and automation best practices.
• Operational Support: Participate in an on-call rotation schedule to support the identity platform.

Qualifications:

• Bachelors in Computer Science, Electrical Engineering, Information Systems, or equivalent.
• 5+ years of development or engineering experience with a specific focus on Identity and Access Management (IAM).
• Deep expertise in Microsoft Entra ID (formerly Azure AD):
• Configuring and managing Enterprise Applications and App Registrations.
• Designing and implementing Conditional Access Policies.
• Managing Entra ID Governance and PIM.
• Infrastructure as Code (IaC) Mastery: Proven experience writing and managing complex Terraform modules to deploy RBAC assignments, custom roles, and cloud resources.
• JML Automation Experience: A proven track record of designing and coding automated workflows for user lifecycle management (Joiners, Movers, Leavers).
• Strong Coding Skills: Proficiency in Python, Go, or advanced PowerShell with extensive experience interacting with REST APIs (specifically Microsoft Graph API).
• Protocol Knowledge: Strong understanding of modern authentication protocols including OIDC, OAuth2, and SAML.