Backend Developer

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🔥 0 minutes ago

🇨🇾 Cyprus – Remote

💵 €2k - €2.5k / month

⏰ Full Time

🟡 Mid-level

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 9%

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Advanced Payment Solutions

WebsiteLinkedInAll Job Openings

51 - 200 employees

💳 Fintech

₿ Crypto

🤝 B2B

💰 Seed on 2025-02

Fintech • Crypto • B2B

Advanced Payment Solutions is a global payments infrastructure provider that enables merchants and businesses to accept and settle digital-asset and fiat payments across multiple rails through a single integration. The company supports card processing, local alternative payment methods, embedded MT5 payments, and Web3/on-chain settlements (Stellar, Solana, Ethereum), and integrates with crypto payment services like Binance Pay and KuCoin Pay to offer fast, multi-currency settlement and institutional liquidity across 150+ countries. APS emphasizes compliance and regulation (AFSA license, FINTRAC registration), PCI-DSS readiness, automated KYT/KYB screening, and 24/7 support for business customers.

📋 Description

• Design, develop, and maintain reliable, secure, and scalable backend services for the platform • Support financial transaction processing and critical payment operations • Own backend development, business logic, API integrations, and system performance • Design complex technical solutions and contribute to platform architecture • Develop and maintain integrations with external systems and third-party APIs • Monitor performance, troubleshoot issues, and maintain stable production environments • Apply debugging, observability, and operational practices to support system reliability • Create and maintain technical documentation, architecture decisions, implementation details, and operational runbooks • Share knowledge within the engineering team • Review, test, and understand AI-assisted code before merging • Participate across the software development lifecycle from design through maintenance

🎯 Requirements

• Minimum 4 years of professional software engineering experience in a full-time role • At least 3 years of professional software development experience building and maintaining production web applications • Proven track record building and maintaining production web applications • Proven experience developing distributed systems • Hands-on experience across the full software development lifecycle including design, implementation, testing, deployment, and maintenance • Strong proficiency in Go programming language and ecosystem tools • Experience integrating third-party APIs and external services • Practical knowledge of application security best practices • Deep understanding of Go fundamentals, including goroutines, channels, interfaces, error handling, and the type system • Fluency with Go standard and community libraries such as chi, gin, sqlx, and pgx • Experience with Go web frameworks and HTTP middleware patterns • Familiarity with Go toolchain and developer tools including go build, go test, go vet, go mod, go modernize, and go generate • Experience with pprof, race detector, golangci-lint, and staticcheck • Understanding of modern web application architecture, REST, gRPC, HTTP semantics, caching, OAuth2, JWT, sessions, and API versioning • Familiarity with Docker and deployment to cloud environments such as Kubernetes • Experience with distributed system patterns, message queues, event-driven architectures, concurrency, synchronisation, and eventual consistency • Working knowledge of relational and/or NoSQL databases • Understanding of observability practices including structured logging, metrics, and distributed tracing • Hands-on experience consuming and integrating third-party REST and/or gRPC APIs • Ability to work with incomplete, inaccurate, or evolving API documentation • Experience diagnosing integration failures using wire traffic and error responses • Experience negotiating API changes, managing versioning constraints, and designing resilient integration layers • Familiarity with Postman, curl, Wireshark, or equivalent tools • Practical knowledge of OWASP Top 10 and vulnerabilities including injection attacks, XSS, CSRF, and SSRF • Understanding of input validation, output encoding, and least-privilege principles • Experience securely implementing authentication and authorisation mechanisms • Knowledge of secrets management and credential protection • Ability to perform basic threat modelling and reason about attack surfaces • Familiarity with TLS/HTTPS, certificate management, and secure service communication • Ability to perform root cause analysis and post-incident review • Ability to write technical documentation for code, APIs, architecture decisions, and operational runbooks • Experience producing Architecture Decision Records and design proposals • Experience integrating AI coding assistants such as GitHub Copilot, Cursor, or Claude Code • Ability to critically evaluate AI-generated code for correctness, security, and project-standard alignment • Strong sense of ownership and responsibility • Strong analytical thinking and structured problem-solving ability • Clear technical communication and collaboration skills • Ability to work independently through complex technical challenges • Commitment to code quality, maintainability, and documentation standards

🏖️ Benefits

• Competitive base salary aligned with experience and technical expertise • Flexible working arrangements • Opportunity to work on complex engineering challenges in a collaborative, low-bureaucracy environment

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