Jobs at Djinni

About Us:

We are a leading participant in the Gonka decentralized AI network (https://gonka.ai/), leveraging high-performance GPU infrastructure to maximize mining rewards. We’re seeking an ML Optimization Engineer to help us achieve superior efficiency and weight in the Gonka ecosystem.
 

Key Responsibilities:

• Implement advanced inference optimizations (speculative decoding, quantization, attention modifications, etc.) to maximize mining weight — techniques already proven to achieve double weight with identical GPUs by other participants
• Fine-tune Docker configurations for various GPU models based on available registry
• Develop custom optimization strategies that balance throughput and quality
• Create and maintain custom Docker images optimized for specific GPU architectures
• Design and implement systems for stable and scalable mining of Gonka and other protocols
• Develop optimized images for Tenstorrent AI ASICs to expand our hardware ecosystem beyond current GPU deployment
• Migrate Python code and VLLM implementations to new VLLM images and adapt them for specific GPU cards
   

Required Qualifications:

• Proven experience with large language model optimization techniques
• Strong understanding of transformer architectures and attention mechanisms
• Proficiency with PyTorch, CUDA, and GPU optimization techniques
• Experience with vLLM, FlashInfer, or similar inference optimization frameworks
• Familiarity with Docker containerization and GPU workload management
   

Preferred Qualifications:

• Experience with Claude Code Max (will be provided if needed)
• Previous experience with Gonka or similar decentralized AI networks
• Background in competitive ML or distributed systems optimization
• Experience with NVIDIA GPU architectures (B200/B300/H200/H100/A100)
• Knowledge of Tenstorrent AI ASICs or other specialized AI hardware
   

What We Offer:

• Opportunity to work with cutting-edge AI infrastructure
• High performance-based bonuses tied to achieved weight improvements
• Potential for full-time position with percentage of mining profits
• Flexible remote work environment
• Access to high-end GPU hardware for experimentation
   

Application Process: Intrested candidates should submit their resume along with a brief description of their relevant experience in ML optimization or performance enhancement ideas.

We are looking for a proactive Middle Fullstack Engineer to join our team.

Responsibilities:

• System design: database schemas, sequence diagrams, API
• Development of full-stack features with SPA/SSR on frontend and REST API on backend
• Implementation of test coverage
• Code review and team collaboration to produce high quality product
• Proactive monitoring of services through logging, metrics and alerting tools
• Configuration of CI/CD pipelines

Requirements:

• 3+ years of experience as NodeJS Fullstack Engineer
• Experience with TypeScript
• Experience with Next.js, React
• Experience with Nest.js
• Experience with REST API
• Experience with CI/CD: Docker, Helm, BitBucket/GitHub/GitLab
• Experience with PostgreSQL
• Experience with Redis
• Experience with RabbitMQ/Kafka
• Experience with Claude/Codex

We are looking for a Senior Engineer / Architect with strong experience in Energy Management to join our team on a part-time basis.

Requirements

• Hands-on experience with Energy Management Systems (EMS).
• Experience with one or more of the following:
  • Battery Energy Storage Systems (BESS)
  • Grid Analytics
  • Dashboard Analytics
• Strong understanding of modern energy systems and solution architecture.
• Experience designing scalable technical solutions and collaborating with cross-functional teams.

What we offer

• Part-time engagement.
• Fully remote.
• Flexible working hours.

If you have relevant experience, please feel free to get in touch!

Quantum is a global technology partner delivering high-end software products that address real-world problems. 

We advance emerging technologies for outside-the-box solutions. We focus on Machine Learning, Computer Vision, Deep Learning, GIS, MLOps, Blockchain, and more.

Here at Quantum, we are dedicated to creating state-of-the-art solutions that effectively address the pressing issues faced by businesses and the world. To date, our team of exceptional people has already helped many organisations globally attain technological leadership.

We constantly discover new ways to solve never-ending business challenges by adopting new technologies, even when there isn't yet a best practice. If you share our passion for problem-solving and making an impact, join us and enjoy getting to know our wealth of experience!

About the position

Quantum is expanding its team in Central Europe and is looking for talented Data Science Engineers to join us. Our projects span multiple domains, including data analysis, fintech, computer vision, image processing, edge-device solutions, Large Language Models (LLMs), and classical Machine Learning applications. We build custom Data Science solutions for clients across various industries, combining strong engineering practices with a research-driven mindset.

Joining Quantum means becoming part of a team that values solid technical fundamentals, continuous learning, and practical problem-solving. You'll collaborate on impactful products, work with cutting-edge technologies, and contribute to projects that turn complex ideas into real-world solutions.

Must have skills:

• 3+ years of commercial DS/ML experience
• Solid foundation in linear algebra, statistics, and probability
• Strong Python, including NumPy, Pandas, and scikit-learn
• Hands-on experience with PyTorch (or TensorFlow)
• Deep experience in at least one of: 
  • Computer Vision (modern DL: detection, segmentation, classification - ViT, YOLO, SAM); 
  • LLMs / NLP (fine-tuning, RAG, prompt engineering, embeddings, evaluation); 
  • Classical ML at scale (tabular, time series, recommender systems)
• Working knowledge of Transformers and attention; familiarity with CNNs
• Experience deploying models to production (Docker, REST/gRPC serving, basic monitoring)
• Experience with at least one cloud platform (AWS, GCP, or Azure)
• Clean code and Git workflow
• Experience with SQL
• Upper-Intermediate English (B2+) - you'll communicate directly with clients

Nice to have skills:

• Cross-domain exposure: if your main strength is CV, some LLM exposure is a plus (and vice versa)
• Edge deployment: TensorRT, OpenVINO, ONNX, quantisation, model distillation, mobile/embedded inference
• LLM tooling: LangChain/LlamaIndex, vector databases (pgvector, Pinecone, Weaviate, Qdrant), LoRA/QLoRA fine-tuning, agentic frameworks
• MLOps & model monitoring: MLflow, DVC, Weights & Biases, CI/CD for ML
• Classical CV with OpenCV (still relevant for hybrid pipelines and edge work)
• Ability to read recent papers and implement methods in new domains
• Experience working with external clients
• Participation in Kaggle competitions

Your tasks will include:

• Own full-cycle DS projects: scoping with the client, data prep, modelling, evaluation, deployment
• Build solutions across CV, LLM/NLP, and classical ML depending on the project pipeline
• Deploy models to production - cloud, edge, or hybrid, depending on client needs
• Read recent research and adapt methods to client problems
• Communicate technical decisions and trade-offs directly to clients

We offer:

• Delivering high-end software projects that address real-world problems
• Surrounding experts who are ready to move forward professionally
• Professional growth plan and team leader support
• Taking ownership of R&D and socially significant projects
• Participation in worldwide tech conferences and competitions
• Taking part in regular educational activities
• Being a part of a multicultural company with a fun and lighthearted atmosphere
• Working from anywhere with flexible working hours
• Paid vacation and sick leave days

Join Quantum and take a step toward your data-driven future.

Our Client from UAE crates an AI-powered influencer marketing platform helping brands scale creator partnerships with precision.

About the role: Lead product strategy and delivery across MoonTech's platform. You'll own roadmaps, drive AI and automation initiatives, and build high-performing PM teams.

Responsibilities:

• Own product strategy across a defined portfolio, aligned to company priorities and customer value
• Translate strategy into measurable outcomes across growth, engagement, retention, and monetization
• Lead quarterly planning and roadmap governance, balancing speed, quality, and platform health
• Make trade-offs across customer experience, scalability, reliability, privacy, and cost-to-serve
• Identify and prioritize AI opportunities delivering customer and business impact
• Partner with Engineering and Data to define AI product requirements and delivery plans
• Ensure AI initiatives are measurable post-launch with clear success metrics and iteration loops
• Identify high-friction workflows and lead automation initiatives reducing manual effort and cost-to-serve
• Improve throughput and reliability via workflow automation, integrations, and systemization
• Lead Delivery to ensure predictable execution across multiple squads
• Establish planning, tracking, risk, dependency, and escalation frameworks
• Own release readiness, phased rollouts, and retrospectives
• Lead and develop Product Managers and Delivery leads across hiring, performance, and growth
• Build a culture of accountability, ownership, and delivery excellence
• Partner with Marketing, Sales, Partnerships, and Customer teams on launches and enablement
• Communicate direction, progress, risks, and trade-offs to leadership

Requirements:

• 6+ years in Product Management, including leading PMs or delivery functions
• Experience scaling high-scale digital platforms with complex dependencies
• Track record delivering multi-team roadmaps and customer-facing platform capabilities
• AI fluency with shipped AI-enabled products in production
• Experience automating business operations and reducing cost-to-serve
• Strong analytics mindset — metrics, funnels, cohorts, and experimentation
• Credible cross-functional leadership with Engineering and Design
• Fluent English is the must
• Strong executive communication and stakeholder management
• Ability to translate ambiguity into execution

Preferred:

• Marketplace or multi-sided platform experience
• Scaling delivery across multiple squads
• Familiarity with experimentation and analytics stacks
• Experience in privacy-sensitive environments

Full-time | Remote | Long-term B2B contract 
 

Our Client is a B2B email deliverability and managed email infrastructure agency, as well as an Apollo Certified Agency Partner. We help companies improve email performance, manage outreach infrastructure, and build scalable outbound systems.

We're looking for a part-time Apollo & Deliverability Support Specialist to work closely with our deliverability team and support clients with day-to-day platform, infrastructure, and troubleshooting needs.

Working Hours

• Approximately 20 hours per week.
• Availability required Monday–Friday, 10:00 AM – 1:00 PM US Eastern Time.
• Ability to respond to urgent client issues during core coverage hours.

What you'll be doing

• Supporting clients with Apollo.io setup, configuration and troubleshooting.
• Assisting with managed email infrastructure and deliverability-related issues.
• Working closely with the Deliverability Lead to resolve technical and operational challenges.
• Helping clients troubleshoot and use Senders MCP, a tool that enables outreach directly within Claude.
• Investigating issues, identifying root causes and providing practical solutions.
• Maintaining clear communication with clients throughout the support process.
• Learning new tools and workflows as the platform evolves.

Skills & Experience

• Hands-on experience with Apollo.io.
• Experience supporting outbound sales, email infrastructure or deliverability-related workflows.
• Strong troubleshooting and problem-solving skills.
• Ability to learn new systems and technologies quickly.
• Excellent written and verbal English.
• Strong client-facing communication skills.
• Organized, responsive and detail-oriented approach to work.
• Ability to work independently and manage priorities effectively.

Nice to Have

• Experience with email deliverability platforms and outbound infrastructure.
• Familiarity with AI-powered workflows and tools such as Claude.
• Experience in a client support, customer success or technical support role.
• Understanding of outbound sales processes and lead generation workflows.

Interview Process

• Introductory conversation.
• Technical interview focused on Apollo.io and troubleshooting scenarios.

Our client is a global leader in maritime intelligence and risk analytics, helping governments, defence organisations and global enterprises make critical decisions through data and AI-driven insights. We are looking for an Experienced Backend Engineer to join the team building the company’s core data platform that powers data processing, analytics and decision-making across the business.
 

What you'll be doing

• Building and maintaining high-performance backend services using Java and Spring Boot.
• Designing and developing scalable data pipelines and data processing services.
• Implementing real-time streaming solutions using Kafka.
• Working closely with data scientists, analysts and software engineers to support data-driven initiatives.
• Developing solutions for collecting, processing and transforming data from multiple sources.
• Leveraging AWS services for data storage, processing and analytics.
• Monitoring service performance, identifying bottlenecks and implementing optimisations.
• Ensuring data integrity, reliability and availability through robust ETL processes and data quality controls.
• Contributing to the adoption of AI-assisted development practices and modern engineering workflows.
   

Skills & Experience

• Bachelor's degree in Computer Science, Engineering or a related field.
• 5+ years of experience as a Backend Engineer.
• Strong Java development experience, including Spring Boot.
• Hands-on experience with Kafka and event-driven or streaming architectures.
• Experience building and supporting microservices-based systems.
• Experience with AWS cloud services.
• Strong understanding of ETL processes and large-scale data processing.
• Good working knowledge of Python.
• Experience with MySQL.
• Familiarity with Generative AI and LLM tools used throughout the software development lifecycle.
• Experience with Spark and/or SingleStore would be advantageous.
• Strong problem-solving skills, attention to detail and ability to work independently.
• Excellent communication skills in English.

We are building an international Payroll product that helps companies manage payroll operations and employee salary payments across multiple jurisdictions while ensuring compliance with local regulations. As the business continues to scale across global markets, we are looking for a Head of Growth/Head of Business Development to take ownership of the commercial strategy and overall revenue growth of the direction. In this role, you will be responsible for acquiring new clients, developing strategic partnerships, expanding revenue within the existing customer base, owning the business unit P&L, and building a high-performing commercial team. This is a leadership position with a high level of autonomy, direct impact on business strategy, and responsibility for the overall commercial success of the project.

Responsibilities

• Develop and execute the customer acquisition strategy for international markets.
• Own the full sales cycle from lead generation to contract signing.
• Build and scale strategic partnership channels.
• Drive upsell and cross-sell initiatives within the existing customer base.
• Own and manage the business unit P&L, revenue growth, and key commercial metrics.
• Build, mentor, and scale the commercial team as the project grows.

• Manage CRM processes, sales pipeline, forecasting, and reporting.

   

Requirements

• 5+ years of experience in B2B Sales, Business Development, Growth, or Revenue-focused roles.
• Proven track record in SaaS, FinTech, Payroll, HCM, or similar B2B industries.
• Experience closing deals across international markets.
• Strong understanding of P&L management and revenue ownership.
• Experience building and managing partnership programs.
• Upper-Intermediate (B2+) English or higher.
• Excellent negotiation, communication, and stakeholder management skills.

• Strong analytical mindset with a data-driven approach to decision-making.

   

Nice to Have

• Experience with global payroll platforms such as Deel, Remote, Rippling, or Papaya Global.
• Understanding of EOR/PEO business models.
• Experience launching and scaling operations in new markets.
• Previous experience leading and growing commercial teams.

Job Title: Senior Business Analyst (Partner Platform / Payments)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will own the requirements, data and acceptance layer for one of our core product areas — either the introducing-broker / partner program or payments (deposits and withdrawals). You turn business, regulatory and operational needs into clear, build-ready specifications: requirements, data models, process and state-flow definitions, API and contract expectations, and the UAT scenarios that prove the system behaves as intended. Because this is a live financial platform where partner commissions and client money are at stake, your specifications and your sign-off are what stand between an idea and a correct, auditable outcome.

Day to day you run discovery with operations, compliance, commercial and finance stakeholders, then translate what you learn into models engineers can build from and testers can verify against. You write working SQL to validate behaviour yourself rather than queueing questions for engineers, read API contracts well enough to challenge trade-offs, and drive disciplined UAT through to a defensible sign-off. You document in Jira and Confluence and keep specifications current as the product evolves. You will be embedded in a focused, remote product team and work closely with its product owner, engineers and QA, reporting into the analysis or product function.

Key Responsibilities

Requirements & Discovery

• Run structured discovery with operations, compliance, commercial and finance stakeholders to surface real needs and constraints
• Translate business, regulatory and operational requirements into clear, prioritised, build-ready specifications
• Define scope, assumptions, edge cases and non-functional expectations, and keep them traceable to delivered work
• Resolve ambiguity early by challenging assumptions and confirming intent before build begins
• Maintain a single source of truth for requirements as the product evolves

Data & Process Modelling

• Model entities and relationships (ERDs) for partner-program or payment data, capturing keys, cardinality and lifecycle
• Specify process and state behaviour with state machines and flowcharts, including failure, retry and reconciliation paths
• Define data contracts and field-level rules so events and records remain consistent across services
• Map end-to-end flows across onboarding, trading activity, payment orchestration or commission attribution at a domain level
• Make implicit business logic explicit so it can be built, tested and audited

API & Solution Collaboration

• Read and review API and event contracts, and articulate expected inputs, outputs and error semantics
• Discuss design trade-offs with engineers and influence solutions without dictating implementation
• Specify integration expectations for internal services and external providers in generic, vendor-neutral terms
• Align requirements with platform realities such as idempotency, eventual consistency and message-driven flows

Validation & UAT Sign-off

• Write working SQL against relational databases to verify behaviour independently of engineers
• Design comprehensive UAT scenarios covering happy paths, edge cases and regulatory and reconciliation checks
• Execute or coordinate UAT, triage findings, and confirm delivery matches intent before release
• Own a disciplined, documented sign-off that holds up to audit and operational scrutiny
• Verify fixes and changes on a live financial platform with appropriate care for data integrity

Documentation & Delivery

• Document requirements, models, decisions and acceptance criteria in Jira and Confluence
• Break work into well-formed tickets with clear acceptance criteria and dependencies
• Keep specifications and process artefacts current through change and iteration
• Communicate status, risks and trade-offs clearly to technical and non-technical stakeholders

Required Experience & Skills

• Senior business analysis experience delivering complex, data-heavy features on transactional or financial systems
• Strong data modelling skills: ERDs, entity lifecycles, and field-level data contracts
• Strong process modelling skills: state machines, flowcharts and end-to-end flow specification, including failure and edge-case paths
• Working SQL against relational databases to query and validate system behaviour independently
• Ability to read and reason about REST API and event-driven contracts and discuss design trade-offs with engineers
• Proven UAT discipline: designing test scenarios, executing acceptance testing, and owning a defensible sign-off
• Excellent requirements elicitation and stakeholder management across operations, compliance, commercial and finance functions
• Clear, precise written documentation using Jira and Confluence
• Comfort working on a live production financial platform where correctness, auditability and data integrity matter
• Self-directed delivery in a remote, cross-functional product team

Nice to Have

• Experience in online trading, CFD/FX, brokerage or broader fintech
• Familiarity with the MetaTrader 5 platform and its data and trading concepts
• Understanding of payment-orchestration concepts such as deposits, withdrawals, settlement and reconciliation
• Familiarity with KYC/AML workflow concepts at a process level
• Understanding of introducing-broker, partner or affiliate programs and multi-level commission or rebate models
• Exposure to microservices and message-driven architectures
• Familiarity with observability tooling (e.g. Grafana, Prometheus, CloudWatch) for behaviour validation
• ISTQB, BCS or comparable business-analysis or testing certification

Job Title: Senior .NET / C# Developer (MetaTrader 5 Integration & Power Platform)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will own the integration connector that links our trading platform to the backend systems powering our introducing-broker and partner program. This connector is the source of truth for moving trading and account data out of MetaTrader 5 and into the services that calculate and present partner activity, so its correctness, latency, and resilience directly shape what partners see and how they are rewarded. When this layer is reliable, the rest of the partner experience simply works; when it is not, the impact is immediate and visible, which is why this is a senior, ownership-heavy role.

Day to day you will design, build, and harden .NET/C# services that synchronise data between MetaTrader 5 and our backend, expose it cleanly to the partner platform, and stay healthy under production load. You will work closely with a primarily Java microservices backend team, agreeing on contracts and integration patterns across language boundaries, and partner with product and operations to keep data flows accurate and observable. You will work remotely within a focused product team and be expected to lead technically on everything connector-related, from design through production support. Beyond the connector, you will also extend our Power Platform (Dataverse) CRM with custom C# plugins, applying your .NET skills across both the trading-integration and CRM sides of the platform.

Key Responsibilities

Build and Own the Integration Connector

• Design and maintain .NET/C# services that synchronise trading and account data between MetaTrader 5 and backend systems
• Keep data flows accurate, idempotent, and consistent across sources, handling reconciliation and replay where needed
• Expose clean, well-versioned interfaces so the partner platform can consume trading and account data reliably
• Own the connector end to end, from design and implementation through deployment and production support

Reliability and Resilient Processing

• Engineer for production load with backpressure, retries, timeouts, and graceful degradation
• Implement asynchronous and message-based processing that recovers cleanly from failures and partial outages
• Establish safeguards against data loss, duplication, and drift between MetaTrader 5 and downstream systems
• Diagnose and resolve production incidents, then close gaps with durable fixes and follow-up improvements

Observability and Operations

• Instrument services with metrics, structured logging, and tracing so behaviour is transparent in production
• Define meaningful alerts and dashboards that surface integration health before users feel the impact
• Track latency, throughput, and error budgets, and act on the signals they reveal

Power Platform / Dataverse Plugins

• Build and maintain custom C# plugins for our Power Platform (Dataverse / PowerApps) CRM — server-side business logic, validation, and automation triggered by CRM events
• Integrate the CRM with trading, partner, and payment data so records stay accurate and actionable
• Package, register, and version plugin assemblies and support them to production with the same reliability bar as the connector

Cross-Team Integration and Quality

• Collaborate with a primarily Java backend team to agree on contracts, integration patterns, and data ownership
• Align on REST and messaging conventions that work cleanly across .NET and Java services
• Uphold engineering quality through tests, code review, and CI/CD pipelines
• Document integration behaviour and operational runbooks for the wider team

Required Experience & Skills

• Strong professional experience building production services in .NET / C# (modern .NET)
• Experience building C# plugins for Microsoft Power Platform / Dataverse (PowerApps), or strong server-side C# experience with the readiness to own Dataverse plugin development
• Proven track record designing and operating system-to-system integrations and connectors
• Depth in integration patterns using REST APIs and/or message-based, event-driven processing
• Solid SQL and relational database skills, including modelling for synchronisation and reconciliation
• Hands-on experience with asynchronous and reliable processing: retries, idempotency, backpressure, and failure recovery
• Demonstrated ownership of reliability and observability in production, using metrics, logging, and tracing
• Experience running services on AWS as the primary cloud, including containerised workloads
• Comfort collaborating across language boundaries with a primarily Java backend team
• Strong debugging and incident-resolution skills under production conditions
• Senior-level judgement on design trade-offs, with the autonomy to own a component end to end

Nice to Have

• Experience with the MetaTrader 5 Manager / Gateway API
• Hands-on experience administering or managing a Power Platform / PowerApps (Dataverse) CRM — solutions, model-driven apps, security roles, and Power Automate flows — is a strong plus
• Background in trading, brokerage, or CFD/FX fintech
• Experience integrating .NET services with Java microservices in production
• Familiarity with Docker and Kubernetes for packaging and running services
• Working knowledge of observability tooling such as Grafana, Prometheus, or CloudWatch
• Exposure to infrastructure as code with Terraform
• Experience with CI/CD pipelines and Git-based workflows
• Familiarity with introducing-broker or partner / affiliate program domains

Job Title: Senior QA Engineer (Partner Platform & Payments)
Company: VCG Tech Limited
Location: Remote
Employment Type: Full-Time

Role Purpose

You will own quality for the backend services and web front-ends behind our introducing-broker / partner program and our payments flows — the systems that move client money and calculate the commissions our partners are paid. In this domain correctness is not negotiable: a deposit that posts twice, a withdrawal that stalls, or a rebate that miscalculates erodes trust and has real financial consequence. Your job is to make sure these systems do exactly what they should, every time, across releases.

You will combine test design, hands-on exploratory testing and automation, working close to the code on a Java microservices backend and React front-ends. Day to day you partner with developers, product and other engineers within a focused, remote product team — joining refinement early to shape testability, validating behaviour against databases and event flows, and building the automated coverage that lets the team ship confidently. We work automation-first — using k6 for API and service-level testing and AI-assisted tooling such as Claude Code to move faster — and you will help push that further. You report into engineering and act as the quality voice for your team.

Key Responsibilities

Test Design & Exploratory Testing

• Design test strategies and cases from requirements, acceptance criteria and risk, with money-movement and commission correctness front of mind.
• Run structured exploratory testing to uncover edge cases, race conditions and failure modes automation will not find.
• Define and maintain meaningful test data and scenarios for deposits, withdrawals, referrals and multi-level partner rebates.
• Prioritise testing effort by financial and customer impact, not just feature surface area.

Test Automation & CI/CD

• Write new k6 tests to verify functionality below the UI — exercising APIs, services and event flows directly — and use k6 as the default for anything that is not UI-only, covering both functional and load/performance checks.
• Build and maintain UI / end-to-end automation with modern frameworks such as Playwright or Selenium, reserving browser-level tests for genuinely UI-specific behaviour.
• Make full use of AI-assisted tooling — we actively use Claude Code — to author, extend and maintain tests (including k6 scripts) faster, while owning their correctness.
• Integrate automated tests into CI/CD pipelines so they run on every change and gate releases, keeping suites fast, stable and flake-free with clear pass/fail signals.
• Expand automated coverage of regression-prone areas to steadily reduce manual effort, contributing reusable utilities, fixtures and patterns the wider team can build on.

Data Validation & Backend Verification

• Validate correctness directly against relational databases using SQL, reconciling expected versus actual outcomes.
• Verify event-driven and asynchronous flows, confirming downstream effects and message handling are correct.
• Trace transactions end to end across services to confirm payments and commission calculations hold up.
• Use logs, metrics and observability tooling to investigate failures and pin down root cause.

Defect Management & Reporting

• Raise, prioritise and track defects in Jira with clear reproduction steps, evidence and impact.
• Drive defects to resolution, verifying fixes and guarding against regressions.
• Maintain clear, current test documentation in Confluence so coverage and decisions stay visible.
• Report quality status, risks and trends to the team and stakeholders in plain terms.

Collaboration & Quality Advocacy

• Engage early in design and refinement to improve testability and surface risk before code is written.
• Pair with developers on edge cases, acceptance criteria and automated coverage.
• Champion quality practices across the team and mentor others on testing approaches.
• Continuously refine process, tooling and coverage based on production learnings.

Required Experience & Skills

• 5+ years in QA / test engineering, including senior ownership of quality for backend services and web applications.
• Strong test design skills across manual exploratory testing and structured, risk-based test planning.
• Hands-on API testing experience and the ability to reason about REST services and contracts.
• Proven test-automation experience building and maintaining suites, with hands-on k6 for API / service-level tests (or a comparable scripting/load framework you can transfer to k6), plus UI automation with Playwright or Selenium.
• Comfortable working with AI-assisted coding tools such as Claude Code to speed up test creation and maintenance, with the judgement to verify and own what they produce.
• Proficient SQL for data validation, reconciliation and investigation against relational databases.
• Experience integrating automated tests into CI/CD pipelines and keeping them stable and fast.
• Working knowledge of microservices and event-driven / message-queue architectures, and how to test asynchronous flows.
• Comfortable using logs, metrics and observability tooling to diagnose and root-cause failures.
• Disciplined defect management in Jira and clear test documentation in Confluence.
• Rigorous attention to correctness in systems where financial accuracy is critical, with strong written and verbal communication.

Nice to Have

• Domain experience in online trading, CFDs/FX or brokerage/fintech.
• Familiarity with the MetaTrader 5 platform and trading concepts.
• Experience testing payments flows such as deposits, withdrawals and reconciliation.
• Deeper performance and load-testing experience with k6 (or Gatling, JMeter or similar).
• Exposure to basic security testing and common application security risks.
• Experience testing partner / affiliate or multi-level commission and rebate systems.
• Familiarity with Docker, Kubernetes and AWS.
• Some Java or front-end (React/TypeScript) familiarity to collaborate closely with developers.

Job Title: Senior Java Team Lead (Payments)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will lead the team that builds and runs our payments platform, the systems that move client money in and out of an online trading business. This covers deposit and withdrawal orchestration, integration with multiple third-party payment service providers, payout flows, and reconciliation. This is money-movement software, so correctness, idempotency, traceability and reliability are the standard, not aspirations. You own the architecture, the technical direction and the delivery accountability for a domain where a single mishandled transaction is a real problem for a real client.

This is a hands-on, coding team lead role. You will spend meaningful time in a Java and Spring Boot microservices codebase, with enough React and TypeScript to lead a fullstack team across the payment journeys clients and operations staff actually use. Day to day you balance writing and reviewing code, shaping the architecture, and growing the engineers around you, working closely with product, operations and other engineering teams to ship reliable payment flows. The team works remotely and you report to the CTO.

Key Responsibilities

Architecture and money-movement correctness

• Own the architecture of deposit, withdrawal, payout and reconciliation services across a Java microservices backend
• Design transaction flows that are idempotent, auditable and safe under retries, timeouts and partial failures
• Define how state transitions, ledgering and reconciliation guarantee that money is never lost, duplicated or stranded
• Set the standards for data consistency, event-driven messaging and failure handling across the team
• Drive technical decisions on resilience, observability and recovery for critical payment paths

Hands-on delivery

• Write, review and merge production code in Java and Spring Boot, leading by example on quality
• Build and maintain REST APIs and event-driven integrations between payment services
• Contribute to the React and TypeScript front end for client and operations payment journeys
• Keep CI/CD, automated testing and deployment pipelines healthy and fast
• Tackle the hardest or highest-risk parts of the work yourself when it matters most

Provider integration and reliability

• Lead integration with multiple third-party payment service providers behind a clean internal abstraction
• Design provider routing, fallback and retry behaviour that stays correct when a provider degrades or fails
• Build reconciliation between internal records and provider settlements to detect and resolve discrepancies
• Own monitoring, alerting and on-call readiness for payment flows using observability tooling
• Lead incident response for payment issues and turn root causes into lasting fixes

Team leadership and delivery

• Lead, mentor and grow a team of backend and fullstack engineers
• Own planning, prioritisation and delivery commitments for the payments roadmap
• Run pragmatic code review, design review and engineering practices that keep quality high
• Partner with product, operations and other teams to translate needs into reliable delivery
• Be accountable for the team's output, timelines and the operational health of what you ship

Required Experience & Skills

• Proven team-management experience is essential - you have directly led a team of engineers as their team lead, owning day-to-day coordination, planning, 1:1s, mentoring, performance and growth, and the team's delivery, while remaining hands-on with code
• 8+ years building backend systems in Java, with deep Spring Boot and microservices experience
• Strong track record building systems where correctness and reliability are critical, ideally involving money movement, transactions or other high-integrity data
• Practical mastery of idempotency, retries, distributed transactions and failure handling in distributed systems
• Strong SQL and relational database skills, including data modelling for transactional and reconciliation workloads
• Hands-on experience with event-driven architectures and message queues
• Experience designing and operating REST APIs and integrating with third-party providers at scale
• Working proficiency in React and TypeScript, enough to lead a fullstack team and contribute to the front end
• Solid experience running services on AWS with Docker, CI/CD and Git-based workflows
• Clear communicator who can drive technical decisions and align engineering with product and operations

Nice to Have

• Experience in payments, payment orchestration or integrating multiple payment service providers
• Background in reconciliation, ledgering or settlement systems
• Experience in fintech, brokerage or online trading domains
• Familiarity with KYC/AML and fraud-prevention concepts at a generic level
• Kubernetes experience for deploying and operating microservices
• Infrastructure-as-code experience, for example Terraform
• Hands-on experience with observability tooling such as Grafana, Prometheus or CloudWatch
• Comfortable working in a remote, product-team-oriented engineering organisation

Job Title: Senior Java Team Lead (IB / Partner Platform)
Company: VCG Tech Limited
Location: Remote (Global)
Employment Type: Full-Time

Role Purpose

You will lead the engineering team that builds and runs our introducing-broker and partner platform: the systems that onboard partners, calculate multi-level partner commissions and rebates from referred trading activity, and give partners clear reporting on their performance. This platform sits at the commercial heart of the brokerage, integrating directly with the MetaTrader 5 trading platform and our core client systems, so correctness, traceability and reliability of every payout calculation matter as much as the features themselves.

This is a hands-on leadership role. You will still write and review Java every week while owning the team's architecture, technical direction and end-to-end delivery. Day to day you balance coding and design with planning, mentoring and unblocking the team, working closely with product and with neighbouring engineering teams such as payments and the trading-platform integration layer. You will partner with product owners to shape the roadmap and turn it into well-sequenced, shippable work. The team works fully remotely, and this role reports to the CTO.

Key Responsibilities

Hands-On Engineering

• Design, write and review production Java daily, setting the standard for the codebase through your own contributions
• Build and evolve Spring Boot microservices that handle partner onboarding, commission and rebate calculation, and partner-facing reporting
• Own correctness and auditability of partner commission logic, ensuring every calculation is traceable and reconcilable
• Integrate with the MetaTrader 5 platform and core client systems through REST and event-driven messaging
• Tackle the hardest technical problems and production issues alongside the team, not from the sidelines

Architecture & Technical Ownership

• Own the architecture of the partner platform, making and documenting clear decisions on service boundaries, data models and integration patterns
• Design event-driven, message-based flows and resilient APIs that keep partner data consistent across systems
• Drive choices on persistence, scaling and observability for services running on AWS with containers and CI/CD
• Plan for performance, idempotency and fault tolerance in financial calculations that must never silently drift
• Manage technical debt deliberately, balancing delivery speed against long-term maintainability

People Leadership & Engineering Standards

• Lead, mentor and grow a team of engineers, supporting their technical development and career progression
• Run pragmatic, high-signal code review and raise the engineering bar across testing, design and operational quality
• Foster a culture of ownership, clear communication and constructive feedback in a fully remote setting
• Coach engineers on the trading and partner-commission domain so the team builds with real context

Delivery & Collaboration

• Own end-to-end delivery for the team, from shaping work with product through to production and post-release support
• Break roadmap goals into well-scoped, sequenced and estimable work, and keep delivery predictable
• Coordinate with payments, trading-platform integration and other teams on shared contracts and dependencies
• Communicate progress, risks and trade-offs clearly to the CTO and stakeholders
• Champion operational readiness, monitoring and on-call practices for the services you own

Required Experience & Skills

• Proven team-management experience is essential — you have directly led a team of engineers as their team lead, owning day-to-day coordination, planning, 1:1s, mentoring, performance and growth, and the team's delivery, while staying hands-on with code
• 8+ years building production backend systems in Java, with deep, current Spring Boot and microservices experience
• Strong command of REST API design, relational databases and SQL, and writing performant, well-tested data access
• Solid experience with event-driven and message-based architectures, including idempotency and eventual consistency
• Hands-on experience running services on AWS with containers (Docker/Kubernetes) and mature CI/CD pipelines
• Demonstrated ownership of system architecture and technical decisions for a non-trivial product area
• Experience building systems where calculation correctness, auditability and data integrity are critical
• Excellent code review, mentoring and technical communication skills, with a record of raising team quality
• Comfortable owning end-to-end delivery and collaborating directly with product and stakeholders
• Self-directed and effective in a fully remote, distributed engineering team

Nice to Have

• Domain experience in online trading, CFDs/FX, brokerage or fintech
• Familiarity with the MetaTrader 5 platform and its integration model
• Experience building introducing-broker, affiliate or multi-level partner-commission/rebate systems
• Background in payments or other financially sensitive, high-integrity systems
• Experience with observability tooling such as Grafana, Prometheus or CloudWatch
• Infrastructure-as-code experience with Terraform or similar
• Exposure to a front-end stack such as React and TypeScript for partner-facing tooling
• Experience scaling and mentoring teams through periods of growth

Location: Paphos, Cyprus (Hybrid)

Ever wanted to build a platform from scratch instead of spending years maintaining legacy code?

Where your architectural decisions shape a product used by millions of people every week?

Where you'll work directly with company leadership, influence technical direction, and have a clear path toward becoming an Engineering Lead?

If you enjoy building scalable full-stack applications, solving complex engineering challenges, and creating software that powers real-world operations — we'd love to talk.

About the Company

Our client is a UK-based logistics and delivery technology company operating one of the country's largest last-mile delivery networks.

Every week, millions of parcels, newspapers, and essential goods are delivered through their platform for some of the UK's largest retailers and logistics providers.

After more than two decades of operational success, the company is investing in a complete rebuild of its core technology platform using a modern JavaScript ecosystem. This is a true greenfield project where engineering teams have the opportunity to design scalable systems without the burden of legacy architecture.

The company combines the stability of an established business with the speed and engineering culture of a modern product company.

The Role

We're looking for a Senior Full Stack Engineer who enjoys building products end-to-end and wants to play a key role in defining the architecture of an entirely new platform.

Location & Working Model

This is a hybrid position based in Paphos, Cyprus, with two/ three days per week in the office for architecture workshops, technical planning, and collaborative design sessions.

We're looking for engineers who are already based in Cyprus or are ready to relocate for a long-term opportunity. The company offers official full-time employment and can support relocation for the right candidate.

What You'll Do

Full Stack Development

• Build modern web applications using React and TypeScript
• Develop backend services and APIs using Node.js
• Design scalable database structures with PostgreSQL
• Deliver features from concept through production deployment

Architecture & Engineering

• Design scalable, maintainable system architecture
• Make technical decisions that support long-term platform growth
• Build cloud-native applications using AWS and Docker
• Contribute to architecture discussions and technical planning

Leadership & Mentorship

• Mentor engineers through code reviews and technical guidance
• Help establish engineering standards and development best practices
• Collaborate closely with the CEO and CTO on product direction
• Grow into leading a team of engineers as the organization scales

Product Collaboration

• Work directly with business stakeholders to translate operational needs into software
• Build internal platforms used daily by operations teams, dispatchers, and drivers
• Continuously improve products based on real customer and business feedback

What You Bring

• 5+ years of commercial Full Stack development experience
• Strong React and modern frontend architecture experience
• Excellent knowledge of Node.js and TypeScript
• Experience designing REST APIs and scalable backend systems
• Strong knowledge of PostgreSQL and relational database design
• Experience working with AWS and Docker
• Understanding of software architecture, scalability, and engineering best practices
• Experience mentoring developers or leading technical initiatives
• Upper-Intermediate English or higher

Nice to Have

• Experience with Prisma ORM
• Experience designing distributed systems
• CI/CD and cloud infrastructure experience
• Experience building high-load or mission-critical applications
• Previous experience leading engineering teams

What You Get

• Official Employment: Full-time employment with a Cyprus-based company.
• Relocation Opportunity: Candidates willing to relocate to Cyprus for a long-term role are welcome to apply.
• Greenfield Product Development: Build a completely new platform using modern technologies instead of maintaining legacy systems.
• Real Technical Ownership: Influence architecture, engineering standards, and long-term technical decisions from day one.
• Leadership Growth: Clear progression toward an Engineering Lead role as the team expands.
• Direct Access to Leadership: Work closely with the CEO and CTO in a fast-moving, engineering-driven environment.
• Hybrid Flexibility: Collaborate in person for architecture sessions while enjoying focused remote work during the rest of the week.
• Engineering-First Culture: High autonomy, thoughtful decision-making, and an environment where technical excellence is valued over bureaucracy.

Interested?

Apply now if you're excited about building modern full-stack platforms, designing scalable architecture, and helping shape the future of a product used by millions of people every week.

Experienced 2nd-Line Support Engineer (Trading Platform)

Company: VCG Tech Limited

Location: Remote (Global)

Employment Type: Full-Time · Evening (17:00–02:00 CET) or Night (01:00–10:00 CET) shift

Role Purpose

As a 2nd-Line Support Engineer, you own the technical investigation and resolution of production issues on a live online trading platform. Sitting between 1st-line support and engineering, you take escalations across the trading, payments, and introducing-broker (IB) / partner systems, reproduce and triage problems, perform root-cause analysis, and drive each issue to a resolution or a clean, well-documented hand-off. In a brokerage where clients trade CFDs/FX in real time and money moves through deposits and withdrawals, fast and accurate diagnosis directly protects client trust and revenue.

Day to day you work hands-on: reading application logs, querying relational databases with SQL to verify what actually happened to an order, payment, or partner record, writing light scripts to gather evidence, and watching monitoring dashboards and alerts to catch issues before clients do. You run incidents calmly, keep stakeholders informed in clear non-technical language, and escalate to engineering only when needed, with findings documented well enough that an engineer can pick up where you left off. You collaborate closely with 1st-line support, product teams, and backend engineers, and you work remotely as part of a distributed support function reporting into engineering/support leadership.

Working Hours & Coverage

This is a shift-based role. We run a three-engineer rota that keeps our support desk covered across extended hours, Monday to Friday, for a live trading platform. We are now hiring for the two shifts:
 

- Evening shift: 17:00–02:00 CET

- Night shift: 01:00–10:00 CET
 

You will be assigned to one of these shifts, and we ask that you state which one you can commit to when you apply. The shifts are designed to overlap by about an hour at each handover, so issues are passed over live between engineers rather than only through written notes. The role is fully remote, but your working hours must reliably and consistently overlap your assigned shift in CET/EET, so we are looking for candidates in compatible timezones. Reasonable rotation between the evening and night shifts, and occasional weekend cover, may apply.

Key Responsibilities

• Escalation Handling & Investigation

- Take escalations from 1st-line support across trading, payments, and partner/IB systems, and own them to resolution or hand-off

- Reproduce reported issues, isolate the failing component, and distinguish user error, data issues, and genuine defects

- Analyse application and service logs to trace transactions end-to-end and pinpoint where behaviour diverged

- Query relational databases with SQL to verify account, order, payment, and partner data against expected state

- Use light scripting (Python/Bash) to collect evidence, parse logs, and automate repetitive diagnostic steps

• Root-Cause Analysis & Resolution
   

- Perform structured root-cause analysis and document a clear chain of evidence for each issue

- Apply known fixes and follow runbooks to resolve recurring problems within the support remit

- Escalate to engineering with concise, well-documented findings, reproduction steps, and supporting data

- Identify patterns across tickets and flag systemic issues, gaps, or fragile areas for permanent fixes

- Contribute to and improve runbooks and knowledge-base articles so resolutions are repeatable
 

• Incident Management & Communication
   

- Act as a calm point of coordination during incidents, driving triage, severity assessment, and timely updates

- Keep stakeholders informed with clear, jargon-free status updates appropriate to a live trading environment

- Coordinate with engineering and product teams to confirm impact, mitigations, and resolution

- Write up post-incident notes and follow-up actions, and track them to closure
 

• Monitoring, Alerting & Ticket Discipline

- Monitor dashboards and alerts to detect and triage issues proactively, before they reach clients

- Maintain disciplined, well-documented ticket handling in Jira with accurate status, context, and history

- Tune and act on alerts, reducing noise and surfacing the signals that matter

- Track recurring issues and feed insights back into monitoring, runbooks, and engineering backlogs

• Required Experience & Skills

- Several years of experience in a 2nd-line, application, or production support role for a live, business-critical software product

- Strong, methodical troubleshooting skills with a proven track record of root-cause analysis under pressure

- Confident writing SQL to investigate and validate data in relational databases (joins, filtering, aggregation)

- Comfortable reading and correlating application logs to trace issues across multiple services

- Hands-on scripting ability in Python and/or Bash for diagnostics, log parsing, and automation

- Practical experience with log and monitoring/observability tooling (e.g. Grafana, Prometheus, CloudWatch or similar)

- Disciplined ticket and incident management, including clear documentation and structured escalation to engineering

- Experience with Jira (or equivalent) and an organised, detail-oriented approach to queue and SLA management

- Excellent written and verbal communication, able to translate technical detail for non-technical stakeholders

- Self-directed and reliable in a remote, distributed team across the full investigate-resolve-handover cycle

• Nice to Have
   

- Domain experience in online trading, CFDs/FX, brokerage, or fintech

- Familiarity with the MetaTrader 5 platform from a support or operations perspective

- Exposure to payments support, including deposit and withdrawal flows

- Understanding of introducing-broker / partner / affiliate programs and multi-level partner commission or rebate concepts

- Basic AWS or general cloud literacy and an understanding of microservices and event-driven systems

- Previous on-call or rota-based incident response experience

- Familiarity with REST APIs and message queues when investigating cross-service issues