Jobs at Djinni

Note: Please apply for this position only if you have proven experience working with crypto, blockchain, or wallet development.

The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

We are looking for a Middleware Engineer to work across the JavaScript/TypeScript layer, connecting modern applications with local AI inference engines and distributed systems. This role sits between product development and platform engineering, focusing on middleware, SDKs, and application layers that make local AI usable, secure, and scalable.

Responsibilities:

• Design, build, and maintain React-based applications (Expo / React Native / Electron)
• Develop clean, modular architectures using TypeScript across the stack
• Implement local-first / offline-first application logic and secure local data storage
• Integrate applications with local AI inference engines, SDKs, and real-time systems
• Work with REST APIs, WebSockets, RPC, and streaming data flows
• Contribute to middleware, SDKs, and JavaScript bindings bridging apps with native and C++ components
• Build or extend native mobile modules (iOS / Android) when required
• Optimize performance for resource-constrained devices
• Write production-quality code with unit and end-to-end tests
• Collaborate in a fully remote, cross-time-zone team

Requirements:Must have

• 5+ years of experience in fullstack software development
• Expert-level proficiency in JavaScript and TypeScript
• Strong experience with React (web, mobile, or desktop)
• Experience building offline-first or local-storage-heavy applications (e.g. SQLite)
• Proven experience with distributed systems or event-driven architectures
• Strong understanding of real-time communication (WebSockets, streaming, RPC)
• Solid knowledge of networking, security, and production best practices
• Experience with databases, data modeling, and performance optimization
• Hands-on experience with containerization and orchestration (Docker, Kubernetes)
• Ability to work independently and communicate effectively in a remote environment

Nice to Have

• Experience with peer-to-peer technologies (libp2p, Hyperswarm, WebRTC)
• Familiarity with AI/ML inference APIs or OpenAI-compatible endpoints
• Experience integrating crypto or payment SDKs
• Background in AI platforms, SaaS, or developer tooling
• Knowledge of GPU resource management, ML infrastructure, or WebAssembly
• Contributions to open-source projects

We are offering:

• Transparent strategy and thoughtful management that keep everyone aligned
• Space for personal growth and career development without limits
• A culture of continuous learning: internal courses, workshops, and English classes twice a week
• Skill up events where we share experience and stay on top of trends
• Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
• Team spirit that thrives through regular events, gatherings, and celebrations

Position: Remote CDL-A driver recruiter

Location: Remote (Ukraine)

Type: Contract / Full-time
 

Note:

This role is not a position within Pixelfreight. We are partnering with CDL Network, to kick off a U.S.-based CDL-A driver recruiting agency, in hiring an experienced recruiter in Ukraine to join their team

CDL Network is a U.S. driver recruiting agency focused on matching CDL-A drivers to carriers where they actually fit. They work directly with U.S. carriers and aim to reduce churn by aligning driver expectations with carrier reality. You’ll be working directly with their internal processes, not just doing lead gen.

 

Requirements

• Must have experience recruiting CDL-A drivers for the U.S. market, dispatch experience, or similar may work.
• Strong spoken English and confident phone presence
• Able to screen for driver preferences: home time, pay structure, equipment, lanes
• Familiar with U.S. trucking basics (OTR, regional, DAC, MVR, SAP, etc.)
• Comfortable working in CRM systems (HubSpot experience is a plus)
• Self-organized, reliable, and process-oriented
   

Skills needed:
 

• Phone-first communication with rapport building
• Sales and matching mentality, not spam
• Detail-oriented intake and recordkeeping
• Objection handling and honest expectation-setting
• Can manage multiple active conversations at once
   

Offer:
 

• Starting compensation: monthly fix + commission per hire
• Full remote work (U.S.-aligned hours, flexible)
• 2-week onboarding with tools and scripts
• Regular performance-based salary reviews
• Growth path into lead recruiter or ops roles
   

Interview Flow:
 

1. Pre-screening questions (chat)
2. 30–60 minute interview with a manager
3. Offer

Position: Remote CDL-A driver recruiter

Location: Remote (Ukraine)

Type: Contract / Full-time
 

Note:

This role is not a position within Pixelfreight. We are partnering with CDL Network, to kick off a U.S.-based CDL-A driver recruiting agency, in hiring an experienced recruiter in Ukraine to join their team

CDL Network is a U.S. driver recruiting agency focused on matching CDL-A drivers to carriers where they actually fit. They work directly with U.S. carriers and aim to reduce churn by aligning driver expectations with carrier reality. You’ll be working directly with their internal processes, not just doing lead gen.

 

Requirements

• Must have experience recruiting CDL-A drivers for the U.S. market, dispatch experience, or similar may work.
• Strong spoken English and confident phone presence
• Able to screen for driver preferences: home time, pay structure, equipment, lanes
• Familiar with U.S. trucking basics (OTR, regional, DAC, MVR, SAP, etc.)
• Comfortable working in CRM systems (HubSpot experience is a plus)
• Self-organized, reliable, and process-oriented
   

Skills needed:
 

• Phone-first communication with rapport building
• Sales and matching mentality, not spam
• Detail-oriented intake and recordkeeping
• Objection handling and honest expectation-setting
• Can manage multiple active conversations at once
   

Offer:
 

• Starting compensation: monthly fix + commission per hire
• Full remote work (U.S.-aligned hours, flexible)
• 2-week onboarding with tools and scripts
• Regular performance-based salary reviews
• Growth path into lead recruiter or ops roles
   

Interview Flow:
 

1. Pre-screening questions (chat)
2. 30–60 minute interview with a manager
3. Offer

Remote | Full-Time | CET/EET

About Us

My Real Profit is a SaaS analytics platform for Amazon sellers. We are focused on delivering clear, actionable insights to our clients.

Role Overview

We are looking for a Lead Generation/Sales specialist with 1+ year of B2B experience, comfortable with numbers, and not afraid of a fast-moving SaaS workflow.

Key Responsibilities

• Communicate with leads and existing clients via email, messages, LinkedIn, etc.. 
• Manage subscription changes, renewals, and updates (Stripe).
• Support leads throughout the full sales cycle.
• Keep CRM records up-to-date.
• Work with the sales team on feedback collection, reporting and process improvements.

Requirements

• 1+ year of sales/marketing experience.
• Familiarity with CRM systems (HubSpot is a plus).
• Comfortable with numbers and simple analytics.
• English: Upper-Intermediate (B2) or above.
• Located in Ukraine or Europe (CET/EET time zones).

Nice to Have

• Experience with Amazon sellers or Amazon analytics tools.
• Experience in client/sales calls
• Basic familiarity with Stripe.

What We Offer

• Fully remote work environment.
• 15 days Paid Time Off (PTO).
• 13 paid holidays.
• 3 paid sick days.
• Company-covered work laptop (or reimbursement for equipment).
• Professional growth in a company with a strong data culture.

We are inviting you, a highly motivated and results-oriented DevOps Engineer (Windows & Cloud Infrastructure), to join our team on a full-time basis, ensuring and developing solutions, as well as strengthening the product infrastructure.

Our team has unique expertise in research, analysis, and product development. Relying on technical insights and a data-driven approach, we create disruptive, future-defining innovations in the fintech industry that remain our basis for success. 

Responsibilities

• Setting up and maintaining the trading infrastructure of the project
• Interaction with engineering teams and stakeholders
• Drawing up documentation and instructions for the operation of the infrastructure
• Providing technical leadership for the customer 

• Providing effective business solutions

   

Requirements

• 4+ years of experience in DevOps practices
• Proven expertise in configuring and managing Windows servers
• Proficiency in scripting with PowerShell
• Experience with cloud platforms (AWS, Azure, Alibaba, GCP etc.)
• Hands-on experience with monitoring tools and systems
• Extensive knowledge and experience with Ansible and Terraform
• Solid experience in administrating MySQL databases 
• Experience in building and managing CI/CD pipelines
• Strong background in network information security, including implementation and maintenance
• Ability to develop and implement practical and effective solutions

• English Intermediate and higher

   

Will be a plus

• Experience with CFD domain
• Experience managing MetaTrader server environments
• Knowledge of Docker, Kubernetes
• Proficiency in programming languages such as Python, C#
• Knowledge of PostgreSQL databases

• Experience working with enterprise network architectures and server platforms

   

We offer

• 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)

We are looking for a result-driven Lead Generation Manager to join our growing team.

Hiring process: Intro call with a Recruiter — Technical interview — Offer.

Requirements:

- Your English level at least Intermediate;
- Experience in the position of Lead Generation Manager in an IT company from 3 years;
- Experience working with Upwork or Mail, LinkedIn;
- Understanding of Upwork lead-generation mechanics: strategy creation, profile optimization, and improving conversion rates;
- Understanding of tender/RFP processes is a plus;
- Deadline- and quota-driven;
- Written and verbal communication skills;
- Decision making skills the ability to multitask and prioritize your workload.

Responsibilities:

- Research, identify, and reach out to potential leads through Upwork, Mail, LinkedIn;
- Write highly-customized cover letters;
- Meet and exceed KPI goals;
- Analyze and report on lead generation metrics to track progress and identify areas for improvement;
- Own the full Upwork lead-generation process end-to-end, including strategy optimization, profile improvement, hypothesis testing, and increasing conversion rates;
- Participate in the search and qualification of tenders (RFP/RFQ), including gathering information for proposals and aligning with the Sales and Marketing teams;
- Collaborate with sales teams to develop effective lead-generation strategies;
- Support the marketing team by providing market insights, feedback on content, helping optimize Upwork portfolios, and testing outreach/ICP hypotheses;
- Result-oriented with the understanding of KPI/OKRs and how they fit;
- Experienced in research approaches, techniques, and familiarity with the most common tools for data search and searching/validating emails (PhantomBuster, snov.io, Hunter, NeverBounce, etc.);
- Develop and maintain a database of leads and prospects for future reference (Hubspot).

What we offer:

- Flexible work format - remote, 8-hour working day without time trackers;
- Competitive salary;
- TIght-knit and friendly team;
- Personalized career growth;
- Up to 50% coverage of the cost of professional courses;
- Vacation time, sick-leaves, national holidays ;
- Competitive bonuses for a personal recommendation of new employees;
- Professional development tools (mentorship program, tech talks and workshops);
- English classes with a teacher;
- Corporate events and team buildings.

Responsibilities:

• LLM configuration and optimization (Mistral, LLaMa, Qwen or others) - fine-tuning, quantization, performance tuning;
• Assessing required computational resources, selecting the optimal infrastructure for model deployment (on-premise or cloud), and analyzing cost efficiency;
• Implementing RAG to integrate models with vector databases;
• Orchestrating interactions between multiple ML services (e.g., one model generates tags, and another validates task descriptions).
• Developing a service for interacting with the model (API for predictions, model management, integration with our application).
• Optimizing model performance for real-world usage.

Requirements:

• Experience with LLM models (Mistral 7B, GPT-3/4, LLaMA, Claude, Falcon, Bloom, etc.);
• Understanding of Retrieval-Augmented Generation (RAG) and model integration with databases;
• Proficiency in Python and libraries like PyTorch, TensorFlow, Hugging Face, and LangChain;
• Experience in evaluating and optimizing infrastructure for AI deployments;
• Experience in developing APIs for integrating AI models into business processes;
• English level at least A2-B1.

Nice to have:

• Hands-on experience with fine-tuning and dataset preparation/annotation;
• Experience with vector databases (Pinecone, Weaviate, FAISS);
• Experience with Java.

We offer:

• Regular result-based salary reviews;
• Comfortable working hours (10-19 Kyiv time zone);
• Bonus system;
• Established product-focused environment;
• Range of tasks, from quick and simple to challenging investigation to run;
• Cheerful & dynamic environment;
• Friendly and open-minded team;
• Virtual workspace with perspective to move into one of the offices;
• Mentorship;
• Attractive social package (unlimited and paid sick days, fully paid vacation, birthday day off, etc;)
• Sport and English classes discounts.

Hiring steps:

• First interview with the Recruiter;
• Technical interview with the Team Lead;
• Job Offer.

Your expertise:

• High personal interest and self-development in AI / ML
• Experience in creating Production services as an ML Engineer
• Experience with Data Science and Quantitative Analysis activities.

Will definitely be a plus:

• Experience with AI / ML services for marketing and sales: product recommendation, retention, customer segmentation, personalization, or others
• High personal interest in Quant, algorithmic strategies, Finance, DeFi
• Experience with creating and supporting algorithmic strategies, including their risk management
• Experience in systematically monitoring and evaluating the performance of AI/ML solutions with a set of KPIs
• Experience with Agentic AI: multi-agent systems, complex prompt engineering, LLM finetuning
• Experience with documenting solution architecture and experiment reports
• Experience with Research & Development projects
• Experience in AI / ML startups or personal pet projects

What’s in it for you?

• Opportunity to deal with top-notch technologies and approaches in a world-leader product company with millions of customers
• Opportunity to make a difference for online privacy, freedom of speech, and net neutrality
• Decent market rate compensation depending on experience and skills
• Developed corporate culture: no micromanagement, culture based on principles of truth, trust, and transparency
• Support of personal and professional development
  • coverage of costs of external trainings, conferences, professional literature
  • support of experienced colleagues
  • in-house events and trainings
  • regular knowledge sharing in teams
  • English classes and speaking clubs
• Life-balance support
  • 25 working days of vacation
  • 5 days of paid sick leave per year without providing a medical certificate (no limitation on sick leaves with medical confirmation)
  • generous maternity leave program
• Professionally strong environment, friendly and open atmosphere, ability to influence the product development and recognition for it

You will be involved into:

• Perform extensive ML and Data Science research for new AI / ML solutions
• Develop new AI / ML solutions and participate in the architecture definition
• Support and upgrade current AI / ML solutions used in Production

About the company and project:

ZONE3000 is proud to represent its partnership with Namecheap (www.namecheap.com). Namecheap was founded in 2000 on the idea that all people deserve value-priced domains delivered through stellar service. Today, Namecheap is a leading ICANN-accredited domain name registrar and web hosting company with over 16 million customers and 19 million domains under management — and we’re just getting started.

Our culture is built on the values that we live every day: the way we work, the way we collaborate with our global network of colleagues and the way we relentlessly innovate solutions that meet the emerging needs of our customers.

Namecheap has been on the market for 25+ years and is the 2nd largest domain registry in the world. We are the Namecheap Machine Learning Team.

The team prototypes and develops innovative systems with AI and Machine Learning. At the moment, there are more than 10 Production systems in the areas of Emails, Payments, Customer Service, and Analytics. Some of them have proven quality at the level of global market leaders.

The team provides all the conditions for active professional growth. The culture combines the best from enterprises and startups: a high level of professionalism, truly innovative technologies, friendliness, and stability.

Project description

Our team is responsible for the development, integration, and support of corporate information systems designed to help business processes run with maximum efficiency.
We develop a set of software products used by 15k+ Luxoft employees. Our solutions automate a wide range of business processes, including client relationship management, contract workflows, purchasing, business travel, budget planning, invoicing, recruitment, personnel administration, and time and resource management.
We are looking for an experienced Software Developer with deep knowledge of architectural approaches to software design and implementation.

Responsibilities

Be part of an agile development team

Participate in microservices architecture implementation

Participate in architecture and system design reviews

Understand the concepts of Clean Architecture and DDD

Be able to conduct code reviews

Have experience with the .NET 9 tech stack

Be able to write maintainable code

Skills

Must have

.NET 9

DDD

Clean Architecture

Angular 19

MS SQL

Nice to have

Advanced English

Azure Kubernetes Services

Azure DevOps (CI-CD, Docker, HELM)

Enterprise Architecture

EF Core

Microservices architecture

Elastic

Redis

Languages

English: B2 Upper Intermediate

We are looking for a highly skilled and strategic Senior DevSecOps Engineer to lead our security operations and infrastructure automation initiatives. In this role, you will bridge the gap between development, security, and operations, ensuring our on-premise environment remains secure, resilient, and efficient.

You will act as a subject matter expert, leveraging cutting-edge tools like CrowdStrike to automate threat detection and response, while maintaining robust perimeter security via Cloudflare.

KEY RESPONSIBILITIES:

• Implementation and automation of security tools in the CI/CD process (SAST, DAST, SCA).
• Analysis of vulnerabilities in code, infrastructure and containers.
• Development and configuration of security monitoring systems, incident response.
• Monitoring and improving the security level of on-prem infrastructures.
• Interaction with developers, DevOps and security teams to implement secure practices.
• Active participation in the processes of IAM configuration, management of certificates, secrets and access policies.
• Conducting internal security audits, participation in external (e.g. penetration) tests.

REQUIRED QUALIFICATIONS:

• Experience: 5+ years of experience in DevSecOps, Security Engineering, or a related field, with at least 2 years in a Senior role.

• Tooling Expertise: Deep hands-on experience with the following specific tools:

  - Baremetal/on-premise infrastructure

  - Docker (Docker Swarm is a strong plus)

  - Gitlab CI

  - CrowdStrike

  - Cloudflare

  - ELK.

• SIEM Proficiency: Proven experience deploying and tuning SIEM solutions (e.g., Splunk, Elastic Security, Datadog, or similar).
• Infrastructure: Strong background in managing on-premise infrastructure (physical servers, data centers, virtualization, networking).
• Scripting: Proficiency in Python, Go, or Bash for automation and tooling.

NICE-TO-HAVE:

• Experience with Kubernetes and such tools as Wiz.io and Torq.
• Previous involvement in high-load, regulated, or 24/7 production environments (e.g., iGaming, FinTech, telecom or similar).

WE OFFER:

• Fully remote work opportunity

• Enhanced leave benefits:

  - 20 days of paid vacation

  - 5 paid days off

  - 14 paid sick leaves

• Company clubs & communities
• Celebration gifts for personal milestones
• Corporate online events, raffles & challenges
• Corporate English program
• Corporate yoga classes
• Team-building activities
• Coworking compensation
• Training and development programs (internal & external).

N-iX is a software development service company that helps businesses across the globe develop successful software products. During 20 years on the market and by leveraging the capabilities of Easter Europe talents, the company has grown to 2000+ professionals with a broad portfolio of customers in the area of Fortune 500 companies as well as technological start-ups. With its headquarters in Lviv, Ukraine, the company also has multiple development offices in the East European region and representative entities in the United States of America, Sweden, and Malta.

Our client - one of the world's largest fashion retailers selling in 215 markets through its online platform or its 6,477 stores in 95 markets. By working closely together as a single company globally focused on the key elements of fashion production – design, manufacture, distribution, and retail. All the production is founded on three pillars – flexibility, digital integration, and sustainability.

Responsibilities:

• Be a part of the Scrum team and deliver value to users by developing high-quality functionality
• Maintain and extend already existing applications
• Actively participate in refinements, plannings, set estimations and follow commitments
• 80% unit tests coverage is a must
• Follow Eslint, Prettier, SonarQube and other code quality rules
• Follow code review processes

Requirements:

• 4+ years of Java development, Maven
• 2+ years of Spring framework and building Spring web applications
• Familiar with the microservices concept
• Experience developing REST interfaces
• Design, coding and debugging skills
• OOP, OOD, and Design Patterns proficient
• Working knowledge of NoSQL (MySQL) DB technologies – Mongo DB
• Understanding of Kafka, Kafka streaming
• Familiar with GrayLog, Grafana
• Strong knowledge of Unit testing
• Basic understanding of Scrum and main aspects of working in Agile environment

Nice to have:

• Working experience in an Agile environment, a clear understanding of Agile methodologies mindset, and development practices applicable to them
• Excellent communication skills, product-oriented mindset, focus on team results, willingness to continuous personal and team improvements
• Upper-Intermediate English level (there will be a lot of communication with the client)

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Why is working at Applica even better than at a product company?
 

Generally, people prefer working in product companies over outsourcing ones.

We believe Applica is a unique type of product company that distinguishes itself even more from typical product companies in the following ways:

• You gain access to hypothesis testing at a speed and volume three to five times faster than in a typical product company. How is this possible? It’s because you won’t be bogged down by typical, mundane tasks such as endless meetings and planning. Your focus will primarily be on creating hypotheses, testing insights from analytics and user research, and scale accounts.
• We manage multiple products simultaneously, mostly world-class startups, ensuring that you are never bored and have the opportunity to gain profound experience in various domains.
• We tackle only the toughest issues for our products. Imagine us as the McKinsey in the world of mobile consumer apps.

About the Role

We’re looking for an Media Buyer/User Acquisition Specialist with experience in promoting consumer app.
 

Key Tasks?

• Create and manage app-specific campaigns on major paid advertising platforms, primarily Google Ads, Meta, and Apple Search Ads (ASA)
• Compile and analyze data acquired from advertising campaigns to assess performance and inform strategies & analyze acquired data
• Conduct competitor research to identify opportunities for improving clients’ app performance and ROI
• Contribute to discussions and brainstorming sessions for new ideas to enhance various mobile products.
• Participation in discussions and brainstorms of new ideas for scaling campaigns

Skills and experience?

• Proven experience in managing app campaigns
• Strong written and verbal communication skills
• Experience with Mobile Measurement Partners (MMPs) (e.g., AppsFlyer, Singular, Adjust)
• Minimum of 1 year of experience in Media Buying or User Acquisition for apps
• Experience in using Google Sheets and/or Business Intelligence (BI) tools
• Upper-intermediate English proficiency (minimum B2 level)
• Familiar with Slack, Notion, Google Drive, and Google Slides
• Launching iOS campaigns (nice to have)

• Prior agency experience (nice to have)

   

What do we offer?

• We offer both part-time and full-time opportunities
• Work with world-class products, including apps that rank among the top in their categories on the App Store and Google Play and App Store Awards Winners!
• Working with Tier 1 markets
• Remote work with a flexible schedule—no traditional 9-to-5 hours
• Join an international team of professionals and collaborate with product and growth experts from top apps in the industry
• A wide range of projects, including mobile apps in categories such as Meditation, Health & Fitness, Education, Entertainment, and Fintech
• Minimal bureaucracy, streamlined people management, and no unnecessary meetings
• Opportunity to manage other paid channels and learn ASO

• Competitive salary tailored to your expertise and expectations

   

What your typical week will look like?

• Campaign management
• Produce client reporting
• Conduct competitor research
• Perform deep-dive analysis of campaigns
• Generate hypotheses and ideate on new strategies
• Collaborate with ASO and creative production teams
• Interact with clients over Slack and Teams
• Attend weekly and monthly meetings with clients

Contact us if you:

• Efficient (able to find ways to complete tasks more efficiently)
• Always curious and eager to learn
• Highly attentive to details
• Able to generate your own insights and ideas
• Enthusiastic about experimenting and taking calculated risks

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!