Jobs at Djinni

WHO WE ARE:

Volpis is a company of ambitious professionals providing Web & Mobile App Design and Development services for more than 10 years. Regularly listed in the Top IT Outsourcing Companies and Top Custom Software Development Companies on Clutch.co. Being a full-service company, we provide expertise in all phases of the software development life cycle. We’ve successfully covered more than 100 products all over the world. Together, we’ve created a dynamic, fun, inspiring environment where we can be ourselves and grow each day.

Our client is a well-established American company with a long history in navigation. Today it builds connected technology for the transportation industry: truck GPS tablets, mobile apps, and a web platform for fleet management. The products help professional drivers and businesses move more safely and efficiently.

We are looking for a strong AQA Engineer to join an experienced team working on the client’s product ecosystem. The work covers the web platform and related services, with real-world impact on thousands of drivers and fleets across North America.

Required experience/skills:

• 4+ years of experience in software QA, including strong hands-on experience testing mobile applications on iOS and Android;
• Strong experience with both manual and automated testing;
• Hands-on experience designing, writing, and maintaining automated tests;
• Strong knowledge of Python and experience with pytest or similar test automation frameworks;
• Ability to write clean, maintainable, and reusable automation code;
• Good understanding of OOP principles and basic software architecture concepts;
• Strong understanding of test design techniques, exploratory testing, regression testing, and risk-based testing;
• Experience defining test strategy and selecting appropriate test coverage based on product and release risks;
• Strong REST API testing experience, including authentication, request/response validation, error handling, and API workflows;
• Good understanding of HTTP methods, status codes, headers, JSON, authentication mechanisms, and client-server architecture;
• Ability to investigate issues using logs, API responses, browser/device debugging tools, and backend information;
• Experience integrating automated tests into CI/CD pipelines;
• Experience with Git and modern CI/CD systems such as GitHub Actions, GitLab CI, Jenkins, or Azure DevOps;
• Experience working with test management systems such as TestRail, Xray, Zephyr, or similar;
• Experience with Jira or similar issue-tracking systems;
• Ability to review requirements, identify gaps and ambiguities, challenge assumptions, and define test scenarios before development is completed;
• Strong understanding of release testing, regression strategy, defect prioritization, and production risk assessment;
• Ability to communicate quality risks clearly to developers, product managers, and customers;
• Experience using AI tools to support requirements analysis, test design, debugging, automation, or QA process improvement;
• Strong analytical and problem-solving skills;
• Upper-Intermediate or higher English

Leadership & Process Ownership:

• Experience improving or establishing QA processes at a project or company level;
• Ability to define minimum QA standards across multiple projects or teams;
• Experience mentoring QA engineers and reviewing their testing approach;
• Ability to evaluate QA effectiveness across multiple projects without micromanaging individual testers;
• Experience performing root-cause analysis for production defects and improving processes based on findings;
• Ability to balance quality, business priorities, delivery timelines, and release risks;
• Experience collaborating with engineering and product teams to introduce shift-left testing practices.

Would be a plus:

• Experience with mobile UI automation;
• Experience with Playwright, Selenium, Appium, XCTest, Espresso, or similar tools;
• Knowledge of Docker;
• Experience testing applications with complex backend integrations;
• Experience with performance, security, or accessibility testing;
• Experience setting up automation infrastructure from scratch.

Responsibilities:

• Analyze product requirements and identify risks, gaps, ambiguities, and edge cases before development is completed;
• Define appropriate test strategy and coverage for new features and releases;
• Perform functional, exploratory, regression, integration, API, and mobile testing;
• Create and maintain meaningful test documentation, including test cases, checklists, test plans, and regression suites where appropriate;
• Design, implement, and maintain automated tests;
• Integrate automated tests into CI/CD pipelines and monitor their reliability;
• Investigate defects using logs, APIs, application behavior, and backend data;
• Report defects with clear reproduction steps, impact, severity, and supporting evidence;
• Perform root-cause analysis of escaped production defects and propose process improvements;
• Assess release quality and clearly communicate risks to the team;
• Collaborate closely with developers, product managers, business analysts, and customers;
• Continuously improve QA practices, tooling, automation coverage, and testing efficiency;
• Depending on seniority, mentor QA engineers and contribute to establishing consistent QA standards across projects.

Your Benefits:

• 15 days paid vacation + 5 public holidays;
• 7 days 100% paid sick leaves;
• Sport and health compensation;
• Flexible working hours;
• Corporate training (internal and external);
• IT Cluster membership;
• Personal Birthday and anniversary gifts;
• Сorporate parties and team-buildings;
• Company legal and accounting support.

INTERVIEW PROCESS: HR Interview, Technical Interview, Сustomer Interview.

About TEKTELIC

TEKTELIC is a global leader in LoRaWAN IoT, providing carrier-grade gateways, sensors, and end‑to‑end solutions for Industrial, Building Automation, Asset Tracking, and Medical IoT. Our solutions help enterprises reduce costs, improve operations, and scale reliably across thousands of connected devices.
 

About the Role

You will act as a key point of coordination between customers, the EU sales team, and internal operations.
 

This is a fast-paced, detail-oriented role with significant ownership, ideal for someone building a career in operations within a product-based organization.

Working hours: 9 AM-6 PM Kyiv time.
 

Key Responsibilities

Sales & Order Management

• Serve as a primary point of contact for customer inquiries related to quotes, orders, and delivery status
• Follow up on submitted RFQs/RFPs 
• Maintain and update customer records including contact, shipping, and billing information
   

Logistics & Delivery Execution

• Communicate delivery schedules and status updates to customers and internal stakeholders
   

Operations Coordination

• Coordinate with production, supply chain, and finance teams to ensure timely order fulfillment

  
   

Required Skills & Qualifications

• 2+ years of experience in Customer Support 
• Experience supporting B2B customers, ideally across European markets
• Strong communication and customer service skills
• High attention to detail and accuracy
• Ability to manage multiple priorities in a fast-paced environment
• Structured, problem-solving mindset
• Upper-Intermediate English
  
   

What We’re Looking For

• A strong communicator who effectively bridges customers, sales, and operations
• A proactive, hands-on coordinator 
• Someone comfortable balancing commercial support with operational execution
• A reliable team player aligned with EU working hours and able to support a distributed team
   

What we offer

• Ongoing opportunities and personal growth in a leading Canadian company
• Competitive compensation + PE accounting support
• Well-being program (250 USD per year)
• Opportunity for career growth in the dynamic field of IoT
• Collaborative and innovative work environment
• Paid Time-off and an additional week off during Christmas Holidays
• Flexible work setup (Kyiv office or remote in Kyiv) and a supportive, international team
• Health insurance
• Engaging social events

We are currently looking for a Brand Manager to develop and scale our Forex vertical across international markets.

We are particularly interested in professionals with experience in affiliate networks, working with brokers, brand partnerships, and traffic monetization.
 

Responsibilities

• Develop and manage relationships with brands, brokers, and affiliate partners.
• Support the growth and scaling of the Forex vertical across Tier 1–2 markets.
• Identify opportunities for new partnerships and brand development.
• Collaborate with internal media buying and affiliate teams.
• Work with traffic monetization models, including CPA, CPL, and CRG.
• Monitor partner performance, traffic quality, and business results.
• Negotiate partnership terms and identify opportunities for business growth.
   

Requirements

• Proven experience as a Brand Manager or relevant experience in affiliate marketing / business development.
• Experience in Forex, CFD, Crypto, or related financial verticals.
• Understanding of affiliate networks, traffic acquisition, and monetization models.
• Experience working with international GEOs, preferably Tier 1–2.
• Portfolio of brands, partnerships, or successful projects.
• Fluent Ukrainian or Russian — mandatory.
• English communication skills.
• Strong negotiation and relationship management skills.
   

What We Offer

• Fully remote, full-time position.
• Competitive compensation, discussed individually.
• Support from an experienced international team.
• Opportunity to develop and scale projects in the Forex vertical.
• Performance-driven environment with an in-house media buying team.
   

Interested?

Send your CV and share examples of brands, partnerships, or projects you've worked with.

We are looking for an experienced Media Buyer to join our team and take ownership of traffic acquisition and scaling through Facebook Ads in the iGaming vertical.

Responsibilities

- Launch, manage, optimize, and scale advertising campaigns in Facebook Ads;

- Work with the iGaming / Gambling vertical across different GEOs;

- Test new traffic combinations: creatives → audiences → offers → landing pages;

- Analyze campaign performance and identify growth opportunities;

- Optimize campaigns based on key metrics such as ROI, ROAS, CPA, CPL, CR, FTD, Deposit, GGR, and LTV;

- Work with advertising accounts, trackers, and analytics tools;

- Manage advertising budgets and ensure efficient traffic acquisition;

- Conduct A/B testing of creatives, audiences, offers, and campaign strategies;

- Scale profitable campaigns and quickly identify and stop underperforming ones;

- Work closely with Creative, CRM, Affiliate, and other teams;

- Research and implement new approaches to Facebook traffic acquisition.

Requirements

- 1+ year of experience as a Media Buyer;

- Strong hands-on experience with Facebook Ads;

- Experience in iGaming / Gambling / Betting;

- Solid understanding of traffic arbitrage and unit economics;

- Strong analytical skills and the ability to make data-driven decisions;

- Good understanding of key performance metrics: ROI, ROAS, CPA, CPL, CR, FTD, LTV;

- Experience with trackers and analytics systems;

- Proven ability to scale profitable campaigns;

- Experience managing significant advertising budgets;

- High level of ownership, proactivity, and result-oriented mindset;

- Willingness to constantly test new hypotheses and approaches.

Would be a plus

- Experience working with Tier-1 GEOs;

- Proven experience scaling Facebook Ads in iGaming;

- Experience managing large monthly advertising budgets;

- Understanding of iGaming bonus economics and key product metrics;

- Experience with anti-fraud systems and advanced traffic acquisition tools.

We offer

- Fully remote work;

- Competitive compensation: fixed salary + performance-based bonus;

- Opportunity to work with significant advertising budgets;

- Strong iGaming expertise and an experienced team;

- Opportunity to influence traffic acquisition and scaling strategies;

- Access to the necessary tools and resources;

- Professional and career growth opportunities.

If you don't just launch campaigns but know how to find profitable combinations, scale them, and take ownership of the results — we'd love to hear from you!

AI Specialist (Python)

We are looking for an AI Specialist with strong Python skills and hands-on experience working with modern AI frameworks and LLMs. You will work on building, fine-tuning, and deploying machine-learning models into production, as well as developing Python backend services for model serving.

Responsibilities

• Develop and maintain AI/ML solutions using Python.
• Work with LLMs (OpenAI, Anthropic, Google Gemini) and frameworks like LangGraph and LangChain.
• Build and optimize pipelines using Vector Stores.
• Train, fine-tune, and evaluate ML models (image, text, audio, video).
• Work with neural networks, NLP, computer vision or reinforcement learning tasks.
• Create and improve classification models (shot/scene detection, captions, object labeling, attention scoring, etc.).
• Deploy AI/ML models into production environments.
• Develop Python backend (Flask or FastAPI) for serving models.
• Work with databases (SQL and NoSQL) for data storage, preprocessing, and model input pipelines.

Requirements

• >1 year of experience in AI/ML or applied machine learning.
• Strong Python skills.
• Experience with LLM frameworks: LangGraph, LangChain.
• Hands-on experience with LLMs (OpenAI, Anthropic, Gemini).
• Good knowledge of Vector Stores and their application.
• Solid understanding of ML algorithms, architectures, and workflows.
• Experience with ML frameworks: PyTorch, TensorFlow.
• Experience with image/text/audio/video model training and fine-tuning.
• Experience building backend services with Flask or FastAPI.
• Experience working with SQL and NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB, DynamoDB, etc.).

Nice to have

• Understanding of MLOps tools and CI/CD for ML.
• Experience with GPUs, model optimization, quantization.
• Familiarity with cloud platforms (AWS / GCP / Azure).

Team Summary

Our AI QA team provides end-to-end testing solutions of complex AI-driven features, hardware sensors supporting AI functionality, and large-scale cloud and embedded systems. We bring proven experience in both hardware and software product development, with a strong focus on motion detection technologies.

We specialize in manual testing across integration, E2E, and acceptance levels, ensuring comprehensive test coverage, continuous product state monitoring, and stable product releases.

The team contributes to the development of AI features and embedded systems.

Job Summary

We are looking for a QA Engineer with experience in software testing, preferably with exposure to embedded systems. In this role, you will be responsible for executing manual tests as well as executing our existing automation.

Responsibilities and Duties

• Conduct confirmation testing
• Estimate own tasks
• Execute existing test cases
• Report test results for assigned activities
• Report bugs according to the template

Qualifications and Skills

• 1+ year of experience in manual testing
• Strong knowledge of testing methodologies, test documentation practices, and test design techniques
• Understanding and hands-on experience with embedded systems testing
• Experience with bug tracking systems
• Basic experience with UNIX/Linux, including CLI navigation and use of regular expressions
• Basic experience with databases and SQL
• Basic experience with API testing using Postman/Charles (send requests, validate responses)
• Basic experience with Python (execute and maintain existing automation scripts)
• Basic experience in mobile testing
• Good written and spoken English
• Ability to work from our lab location in Gdansk

Nice to have

• Understanding AWS services
• Understanding CI tools (Jenkins)
• Basic experience with Raspberry Pi
• Basic knowledge in computer vision and machine learning

We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member
• Competitive salary packages with performance-based annual reviews
• Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company
• Employment via Contract of Employment (UoP) in complete alignment with Polish Labour Law
• Guaranteed paid vacation, public holidays, and medical leaves as per statutory regulations
• Continuous growth and development opportunities through internal knowledge hubs, corporate courses, and free English classes
• Comprehensive private medical insurance to supplement your standard NFZ coverage.

Our AI QA team provides end-to-end testing solutions of complex AI-driven features, hardware sensors supporting AI functionality, and large-scale cloud and embedded systems. We bring proven experience in both hardware and software product development, with a strong focus on motion detection technologies.
We specialize in building and executing multi-layered automation frameworks across integration, system, and acceptance levels, ensuring comprehensive test coverage, continuous product state monitoring, and stable product releases.
The team contributes to the development of AI features and embedded systems.

We are looking for a QA Engineer with solid experience in software testing, preferably with exposure to embedded systems. In this role, you will be responsible for executing manual tests as well as expanding and maintaining our existing automation coverage.

Responsibilities:

Define requirements for test environments, data, resources, and tools
Create and maintain traceability matrices
Provide accurate high-level and detailed estimations for assigned activities and features
Develop and execute Test Plans in line with standards
Ensure automated test coverage (execution, analysis, reporting)
Contribute to the development and expansion of the existing Python test framework
Interpret and apply product and project metrics (technical and quality)
Prepare Test Summary Reports for features and programs in line with standards
Monitor, update, and implement new QA approaches based on standards (ISO/IEC/IEEE, ISTQB, RST)
Apply Quality Management principles (Planning, Assurance, Control, Continuous Improvement)

Skills:

5+ years of experience as a QA engineer

Basic knowledge in computer vision and machine learning
Understanding and hands-on experience with embedded systems testing
Good Automation skills with Python
Hands-on experience in UNIX/Linux, including CLI navigation and use of regular expressions
Experience with databases and SQL
Experience with CI tools (Jenkins)

Nice to have:

Basic experience with Raspberry Pi
Hands-on experience in Bash scripting
Familiarity with AWS services
Practical experience with API testing (CRUD operations, debugging with Postman or similar tools)
Experience in mobile testing
ISTQB Certification

We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member
• Competitive salary packages with performance-based annual reviews
• Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company
• Employment via Contract of Employment (UoP) in complete alignment with Polish Labour Law
• Guaranteed paid vacation, public holidays, and medical leaves as per statutory regulations
• Continuous growth and development opportunities through internal knowledge hubs, corporate courses, and free English classes
• Comprehensive private medical insurance to supplement your standard NFZ coverage.

Team Summary

Our AI QA team provides end-to-end testing solutions of complex AI-driven features, hardware sensors supporting AI functionality, and large-scale cloud and embedded systems. We bring proven experience in both hardware and software product development, with a strong focus on motion detection technologies.

We specialize in building and executing multi-layered automation frameworks across integration, system, and acceptance levels, ensuring comprehensive test coverage, continuous product state monitoring, and stable product releases.

The team contributes to the development of AI features and embedded systems.

Job Summary

We are looking for a QA Engineer with solid experience in software testing, preferably with exposure to embedded systems. In this role, you will be responsible for executing manual tests as well as expanding and maintaining our existing automation coverage.

Responsibilities and Duties

• Define requirements for test environments, data, resources, and tools
• Create and maintain traceability matrices
• Provide accurate high-level and detailed estimations for assigned activities and features
• Develop and execute Test Plans in line with standards
• Ensure automated test coverage (execution, analysis, reporting)
• Contribute to the development and expansion of the existing Python test framework
• Interpret and apply product and project metrics (technical and quality)
• Prepare Test Summary Reports for features and programs in line with standards
• Monitor, update, and implement new QA approaches based on standards (ISO/IEC/IEEE, ISTQB, RST)
• Apply Quality Management principles (Planning, Assurance, Control, Continuous Improvement)

Qualifications and Skills

• 3+ years of experience in manual testing
• Strong knowledge of testing methodologies and test documentation practices
• Experience with bug tracking systems
• Hands-on experience in UNIX/Linux, including CLI navigation and use of regular expressions
• Experience with databases and SQL
• Experience with CI tools (Jenkins)
• Practical experience with API testing (CRUD operations, debugging with Postman or similar tools)
• Basic automation skills with Python (ability to read a script or maintain simple tests)
• Good written and spoken English
• Ability to work from our lab location in Kyiv

Nice to have

• Understanding and hands-on experience with embedded systems testing
• Familiarity with AWS services
• Basic experience with Raspberry Pi
• Hands-on experience in Bash scripting
• Basic knowledge in computer vision and machine learning
• Experience in mobile testing

We offer multiple benefits that include

• The environment of equal opportunities, transparent and value-based corporate culture and an individual approach to each team member.
• Competitive compensation and perks. Annual performance review.
• Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company.
• Gig-contract.
• 21 paid vacation days per year, paid public holidays according to the Ukrainian legislation.
• Development opportunities like corporate courses, knowledge hubs, and free English classes as well as educational leaves.
• Medical insurance is provided from day one. Sick leaves and medical leaves are available.
• Remote working mode is available within Ukraine only.
• Free meals, fruits, and snacks when working in the office.

Project Description

We are looking for a sys admin to cover the US time zone. Working hours: 7 PM to 3 AM.

IT System Administrator (Evening/Night Shift, 7 PM – 3 AM)

Responsibilities:

• Device fleet: set up, maintain, and update Windows and macOS machines; handle hardware onboarding and offboarding.
• User access: manage accounts, roles, permissions, MFA, password resets, and access revocation for departing employees.
• Endpoint updates and security: apply OS and software patches, manage antivirus/EDR, enforce disk encryption (BitLocker, FileVault) and security policies.
• Monitoring: track device health and corporate services, respond to alerts during the shift.
• Backups: oversee backups of workstations and user data.
• Troubleshooting: resolve OS, software, network, VPN, and peripheral issues.
• Developer support: configure local environments (Docker, SDKs, IDEs, repository and VPN access), perform initial diagnosis of deployment issues, and escalate to DevOps.
• Tickets: handle user requests, maintain documentation, and prepare shift handovers.

Requirements:

• Experience: 2+ years as an IT Administrator or IT Support (L2).
• Windows: solid administration of Windows 10/11, including Group Policy.
• macOS: hands-on experience supporting and configuring macOS.
• MDM: Microsoft Intune, Jamf, Kandji, or similar.
• Identity and access: Entra ID (Azure AD) or Active Directory, Google Workspace or Microsoft 365, SSO (Okta, JumpCloud, etc.).
• Networking (end-user level): DNS, DHCP, Wi-Fi, VPN.
• Scripting: PowerShell and Bash/zsh for automating routine tasks.
• Ticketing systems: Jira Service Management, Freshservice, or similar.
• English: B1 or higher.

Nice to Have

• Basic understanding of Docker, Git, and CI/CD to communicate effectively with DevOps.
• Experience with EDR tools (CrowdStrike, SentinelOne, Defender for Endpoint).
• Basic AWS or Azure knowledge at the access-management level (IAM).
• Certifications: Microsoft (MD-102), Apple (ACSP), CompTIA A+/Network+.
• Familiarity with ITIL processes.

Night Shift Specifics

• Autonomy: able to resolve user issues independently without team backup.
• Escalation: clear judgment on when to escalate an incident to on-call DevOps and when it can wait until morning.
• Communication: clear written handovers for the day shift.
• Schedule: consistent availability from 7 PM to 3 AM with an agreed rotation of days off.

About the company:
We are an international IT company in iGaming, focused on building our brand in the global market. Our key markets are the UK, Germany, and Australia. We work with an international audience and are growing a strong team of professionals who value creativity, initiative, and results.

Responsibilities:

• Develop and execute SMM strategies for Facebook, Instagram, Telegram, TikTok, and YouTube;
• Create engaging content: copy, creatives, memes, and videos;
• Set up and optimize paid social campaigns;
• Analyze metrics, engagement, and traffic acquisition performance;
• Grow the community and increase brand awareness;
• Work closely with designers, producers, and affiliate managers.

Requirements:

• 2+ years of SMM experience in iGaming (required);
• Proven experience working with UK, German, and Australian markets (our key GEOs);
• Strong knowledge of social media trends, formats, and algorithms;
• Hands-on experience with analytics tools and paid advertising;
• Ability to create viral, engaging content, including with AI tools;
• English at B2 level or higher.

What we offer:

• Remote work with flexible team collaboration;
• Full creative freedom and real influence on the promotion strategy;
• Work with an international audience on ambitious projects;
• Professional and career growth opportunities;
• A close-knit team open to new ideas and initiatives.

POSITION OVERVIEW

As a System Analyst on the Fintech Core project, you will define technical architecture, system specifications, and integration designs for a white-label modular fintech platform that enables rapid creation of digital banking and payment products.

The platform provides a complete technology stack including general ledger, middleware, mobile/web applications, and extensive third-party integrations for KYC, payments, card issuance, and compliance. You’ll work closely with Business Analysts, Solution Architects, and Engineering teams to translate business requirements into detailed technical specifications, design robust system architectures, and ensure seamless integration across microservices while maintaining regulatory compliance and enterprise-grade security.

This role offers hands-on experience designing financial systems at scale, with exposure to payment processing, card networks, digital wallets, cross-border transactions, and regulatory compliance frameworks serving multiple fintech implementations globally.

General project description 

Fintech Core is a white-label modular fintech solution designed for rapid creation and launch of digital banking and payment products. It provides a comprehensive, turnkey platform that enables businesses to build neobanks, digital wallets, payment systems, and other fintech products within 3 months rather than years. The solution includes a complete technology stack: a robust general ledger platform, middleware layer, customizable frontend applications for iOS/Android/Web, and extensive third-party integrations for KYC, payments, card issuance, and compliance. Unlike traditional SaaS offerings, Fintech Core provides full access to source code, eliminating vendor lock-in and enabling deep customization.

The platform is built on a microservices architecture with modular components that can be independently scaled and customized. It supports multi-currency operations, cross-border payments, card issuing, account management, transaction processing, compliance monitoring, and back-office orchestration. The solution is PCI & DSS compliant and designed to meet regulatory requirements across multiple jurisdictions.

Project stage: Active development and continuous enhancement. The platform is mature with multiple successful implementations but undergoes constant evolution to incorporate new regulatory requirements, payment integrations, and fintech capabilities. Quality, scalability, and compliance are paramount priorities.

The size and the structure of the team Cross-functional team including Product Owners, Business Analysts, System Analysts, Frontend/Backend Developers, QA Engineers, DevOps, Security Specialists, and Compliance Consultants. The team operates in an Agile environment with close collaboration between technical and business functions.

YOUR BACKGROUND

Technical Skills 

• 4+ years of experience as a System Analyst, Technical Analyst, or similar role in fintech or banking domains 
• Strong understanding of financial systems architecture including general ledgers, payment processing, and account management 
• Experience with microservices architecture, API design, and distributed systems 
• Proficiency in creating technical documentation: system design documents, data flow diagrams, sequence diagrams, ER diagrams 
• Knowledge of database design and data modeling for transactional systems 
• Understanding of integration patterns, message queues, and event-driven architectures 
• Familiarity with payment systems standards (ISO 20022, SWIFT, SEPA, card schemes) 
• Experience with API specifications (REST, OpenAPI/Swagger, webhooks) 
• Understanding of cloud infrastructure and deployment architectures (AWS, Azure, GCP) 
• Knowledge of authentication and authorization mechanisms (OAuth, JWT, API keys)

Domain Knowledge 

• Understanding of core banking concepts: accounts, transactions, balances, ledgers, reconciliation 
• Knowledge of payment flows: domestic/international transfers, card payments, digital wallets 
• Familiarity with KYC/AML processes and regulatory compliance requirements 
• Understanding of financial data security standards (PCI DSS, GDPR) 
• Experience with fintech product features: onboarding, card issuing, FX, acquiring

Analytical & Documentation Skills 

• Excellent analytical thinking and problem-solving abilities 
• Strong technical writing skills with attention to detail 
• Ability to translate complex business requirements into technical specifications 
• Experience with UML, BPMN, or similar modeling notations 
• Proficiency with documentation tools (Confluence, Notion, or similar) 
• Experience with requirements management and traceability

English level - Upper-Intermediate.

Skills that will be a plus:

• Experience with white-label or multi-tenant system architectures
• Knowledge of blockchain and cryptocurrency integrations
• Familiarity with regulatory frameworks (PSD2, Open Banking, MiFID)
• Experience with performance testing and system optimization
• Understanding of DevOps practices and CI/CD pipelines
• Previous experience with modular platform architecture
• Knowledge of financial compliance and audit requirements
• Experience with data migration and system integration projects

RESPONSIBILITIES

• Analyze and document system requirements for platform modules including payments, card issuance, digital wallets, accounts, ledger management, and compliance systems
• Translate business requirements into detailed technical specifications, API contracts, database schemas, and integration architectures
• Design data models, entity relationships, and data flow diagrams for transactional and financial systems with appropriate normalization and performance considerations
• Define integration patterns and technical specifications for connecting with payment processors, KYC/AML providers, card issuers, and open banking platforms
• Document system behaviors using sequence diagrams, component diagrams, deployment architectures, and API specifications (OpenAPI/Swagger)
• Collaborate with Solution Architects to ensure system designs align with microservices architecture patterns, scalability requirements, and technical best practices
• Define non-functional requirements including performance benchmarks, security controls, data retention policies, and audit trail specifications
• Facilitate technical design workshops with Engineering teams to review system specifications, validate implementation approaches, and identify technical risks
• Create comprehensive system documentation in Confluence covering technical flows, component interactions, message formats, and infrastructure requirements
• Support QA teams by defining system integration test scenarios, technical acceptance criteria, and end-to-end testing strategies
• Analyze system performance bottlenecks and propose optimization solutions for high-throughput financial transaction processing
• Ensure all technical specifications maintain regulatory compliance requirements (PCI DSS, GDPR, PSD2) and financial data security standards
• Maintain traceability between business requirements, system specifications, technical implementations, and test cases
• Participate in sprint planning, technical refinement sessions, and architecture review boards to ensure alignment between product vision and technical execution

Come Back Agency helps US software and technology companies run their hiring process. We work with delivery and leadership teams to define roles, screen candidates, and manage interviews. Successful candidates are hired directly by the company and become part of its team.

This position is with a US-based software company providing custom development and AI implementation for North American clients. The team builds and maintains production software, including AI-enabled systems, and works in long-term client engagements. Team members operate as part of an internal, distributed team and collaborate directly with client stakeholders.

About the Role

As we scale our operations to meet enterprise demands, we are looking for a driven DevSecOps Engineer who can help harden our cloud infrastructure, elevate our security posture, and drive compliance readiness. In this role, you’ll play a pivotal part in helping us pass enterprise vendor reviews and achieve key certifications like SOC 2 and ISO 27001. You will work closely with cross-functional engineering and leadership teams spanning infrastructure, security, and compliance.

What You Will Do

• Infrastructure & CI/CD: Build, scale, and maintain secure cloud infrastructure and automated CI/CD pipelines.
• Access & Security: Implement robust access controls, least privilege principles, secrets management, and security hardening across environments.
• Observability & Auditing: Standardize logging, monitoring, alerting, and comprehensive audit trails.
• Secure SDLC: Drive secure software development lifecycle practices, including code scanning, dependency scanning, and change control.
• Incident Response: Establish baseline incident response procedures, including runbooks, on-call expectations, and structured post-incident reviews.
• Compliance Readiness: Take ownership of technical controls and evidence gathering for SOC 2 and/or ISO 27001 frameworks.
• Vulnerability Management: Maintain proactive vulnerability patching routines for infrastructure and dependencies.
• Reliability & Recovery: Enhance backup, disaster recovery, and business continuity practices.
• Client Security Support: Respond to client security questionnaires and support audits with clear technical answers and evidence.

Requirements

• Experience: 2+ years of hands-on DevOps experience managing cloud infrastructure and deployment pipelines.
• Cloud & IaC: Strong practical experience with AWS (IAM, networking, compute, logging) and Terraform (Infrastructure as Code).
• Containers & GitOps: Hands-on experience with Kubernetes (Amazon EKS preferred), Helm, and GitOps workflows (ArgoCD or similar).
• CI/CD: Experience building and configuring CI/CD pipelines from scratch (e.g., Bitbucket Pipelines, GitLab CI, GitHub Actions).
• Security & Compliance: Familiarity with modern security tooling (SAST, DAST, dependency scanning, secret scanning), combined with hands-on experience in SOC 2 and/or ISO 27001 compliance preparation (controls implementation, gap analysis, and evidence collection using Security Hub or similar cloud security tooling).
• Documentation & Process: Strong ability to document systems clearly and collaborate effectively with auditors or compliance platforms.
• Communication: B2+ English level (upper-intermediate or higher) for seamless daily collaboration with US-based client stakeholders.

Nice to Have

• AWS certifications (e.g., DevOps Engineer - Professional or SysOps Administrator Associate).
• Experience with compliance automation tools such as Vanta, Drata, or Secureframe.
• Background working in regulated industries (e.g., HIPAA).

What We Offer

• Working hours aligned with US time zones, typically 16:00–23:59 Kyiv time.
• Company-sponsored English lessons to support clear and confident communication.
• Paid vacation and sick days.
• Fully remote work.
• Opportunities for professional growth within the team.
• Structured, personalized onboarding to help you ramp up effectively.

Apply with your resume and a short note outlining your relevant experience. You can also submit it through our website at comeback.ua. Selected candidates will be contacted by Come Back Agency.

NexaPay (nexapay.one) is an Estonian fintech company in the payments space. Our payment gateway allows merchants to accept Visa, Mastercard, Apple Pay and Google Pay, and receive settlement in USDC. We work with B2B clients worldwide.

We're scaling and looking for a developer who can build high-quality web interfaces fast, making active use of modern AI development tools. We need someone who can take an idea to a working, well-designed product in a short time — and who genuinely understands what they're building.

What you'll do
— Build and develop the company's websites and landing pages, from mockup to production
— Create internal interfaces and panels for the team
— Maintain, improve and update existing pages and functionality
— Test ideas quickly: build prototypes and take the successful ones to completion
— Own the quality: responsiveness, load speed, correct behaviour across all devices

What matters to us
— A strong sense of modern UI/UX: you build interfaces that look polished and expensive, not templated. This is a key requirement
— Portfolio required: live links to websites or interfaces you've built
— Confident use of AI development tools (Claude Code or similar) — and a clear sense of where they can be trusted and where your own review is needed
— Real understanding of code, not just generation: project structure, working with repositories and Git, deployment, reading and editing existing code, a working grasp of backend and APIs
— Experience with a modern frontend stack (React/Next.js or similar)
— English at B2+: documentation, tools and part of our communication are in English
— Independence: the ability to take a task, see it through, and propose a better solution
— Attention to detail: this is fintech, where accuracy and reliability matter more than speed

Nice to have
— Experience in fintech, SaaS or with payment integrations
— Basic understanding of web application security
— Experience working with analytics and SEO requirements at the markup level

Hiring process
Portfolio review → interview → a test task

Schedule
Full-time, 9:00–19:00 Estonian time (EET), fully remote.

What we offer
— Competitive compensation, paid in crypto
— Fully remote work
— Freedom in technical decisions and a fast cycle: your changes reach real clients immediately
— An international fintech product that's actively scaling
— Room to grow with the company

Send your CV along with links to 2–3 things you've built — that matters more to us than formal experience.

TRIONIKA is a company with core expertise in attracting and monetising internet traffic in EdTech and FinTech.

We are looking for an experienced SEO Unit Lead to build and lead an autonomous mini-unit consisting of a Middle and Junior SEO Specialist.

This is a hands-on role for someone who knows how to launch and rank iGaming affiliate websites (Tier-1/Tier-2 markets), test brand and cross-brand strategies, manage budgets, and turn organic traffic into measurable net profit.

What You Will Do

• Develop and execute SEO strategies for iGaming affiliate websites.
• Select promising GEOs, brands, domains, and search opportunities.
• Build semantic cores and work with brand and cross-brand keywords.
• Launch and scale networks of affiliate websites.
• Work hands-on with domains, indexing, redirects, migrations, and Technical SEO.
• Create and test SEO hypotheses and scale successful approaches.
• Analyse rankings, traffic, conversions, registrations, FTDs, and financial results.
• Estimate and manage the budget required to enter selected GEOs.
• Set tasks for Middle and Junior SEO Specialists and take ownership of the unit’s results.

What We’re Looking For

• 3+ years of hands-on SEO experience.
• Proven experience specifically in iGaming affiliate SEO.
• Experience with brand and cross-brand SEO strategies.
• Experience working with European, English-speaking markets.
• Strong understanding of semantic research, SERP analysis, domains, indexing, redirects, migrations, and Technical SEO.
• Ability to assess competition, estimate budgets, and understand the commercial potential of a GEO.
• High autonomy, ownership, and a results-driven mindset.

What We Offer

• Fixed compensation + bonus system.
• The possibility of additional individual rewards for exceptional performance.
• Remote workload.
• Flexible working hours.
• Ownership of your own SEO unit.
• Freedom to propose GEOs, brands, domains, budgets, and hypotheses.
• Proprietary tools for automated website launches, redirects, indexing, GSC data, and link building.
• Transparent communication and a supportive environment

If you know how to build profitable iGaming affiliate projects and want the autonomy, technology, and team to scale your ideas, we would be happy to speak with you!

The Mission

Wallee Group is a leader in advanced payment solutions, dedicated to providing robust, scalable, and secure systems across multiple domains. We enhance customer experiences through innovative payment and finance technology that empowers businesses to grow efficiently. With operations spanning several countries, we thrive on collaboration and agility, utilizing the Scrum framework to drive our international teams. At Wallee, we stay at the forefront of market trends, continuously innovating to deliver premier services to our global customers.

The Role

QA Engineer to own test strategy and automation for a React-based web front-end. 

We're looking for a strong software engineer who has chosen quality engineering as a deliberate specialization — someone who finds testing, tooling, and preventing bugs at scale genuinely interesting. The role also involves occasional manual testing of a cross-platform mobile SDK (Android & iOS), with mobile test automation as a possible future direction.

Core Responsibilities

• Design, write, and maintain automated test suites for the React front-end (unit, integration, and end-to-end tests) — treated as production code, not an afterthought
• Read and understand React component code well enough to reason about edge cases, state transitions, and failure modes, not just click through UI flows
• Build and maintain CI/CD test pipelines and test infrastructure — this is engineering work, not configuration
• Define test strategy and coverage standards for the team, and advocate for testability in code review and design discussions
• Investigate, document, and file clear, reproducible bug reports; go deep enough to identify root cause, not just symptoms
• Contribute to test plans and acceptance criteria during feature planning — as a peer in design discussions, not downstream of them
• Occasionally perform manual testing of the mobile SDK (Android & iOS)

Requirements

• 3+ years as a QA Engineer or SDET, with hands-on test automation experience
• Strong software engineering fundamentals: able to read, write, and debug real code, not just scripts
• Ability to read and understand React code — components, hooks, state/props flow — well enough to reason about what needs testing and why
• Solid JavaScript/TypeScript skills
• Proficiency with a modern JS/TS test automation framework (e.g., Playwright, Cypress, Jest, React Testing Library)
• Experience with CI/CD tools (e.g., GitHub Actions, CircleCI, Jenkins) and building test infrastructure, not just using it
• Able to clearly explain why something is a bug, its impact, and root cause — not just that it happened
• Experience manually testing mobile apps on real devices/simulators (iOS and/or Android)
• Experience testing native or cross-platform SDKs
• Familiarity with Android (Kotlin/Java) and/or iOS (Swift) enough to read stack traces or sample integration code
• Experience setting up mobile test automation (e.g., Appium, XCUITest, Espresso)
• API/backend testing experience (e.g., Postman, REST-assured)
• Performance or accessibility testing experience
• A blog post, talk, OSS contribution, or side project related to testing/QA