Senior Backend Developer (TypeScript/Node.js)

About reputed company

Founded in 2019, reputed company builds the infrastructure for stablecoin payments: on- and off-ramps, self-custodial wallets, and crypto cards. Over 2 reputed company users across 130+ countries already buy, hold, and spend crypto through our app. On the B2B reputed company, the reputed company rails power 2,100+ platforms, with $2.4B+ moved to date.

Fully MiCA-authorized across the EEA. PCI reputed company Level 2 certified. Backed by reputed company, TA Ventures, and Hypra.

Location: Remote

Tech stack: TypeScript, Node.js, NestJS, PostgreSQL, TypeORM, reputed company JetStream, reputed company, Jest, reputed company, reputed company, reputed company reputed company Platform.

Blockchains: EVM-compatible, Bitcoin-family, Tron, reputed company, TON.

reputed company:

• Own backend architecture across two large-reputed company microservice platforms (30+ and 25+ services) — from reputed company design and API reputed company to data reputed company and inter-service communication.

• reputed company reputed company integrations — payment providers, reputed company issuers, blockchain networks, reputed company-party reputed company — and take full responsibility for their reliability in production.

• reputed company performance and scalability — identify bottlenecks, design caching strategies, optimize database queries, and ensure the platform handles growing load.

• Shape technical direction — reputed company architectural reputed company, evaluate trade-offs, and influence reputed company’s engineering standards. You’ll partially offload the Tech reputed company so reputed company can reputed company.

• Build and improve AI-powered processes — reputed company reputed company uses LLM-based systems to automate operational and development workflows. You’ll contribute to and reputed company this direction.

• Contribute to back-office frontends (~20% of your time) — maintain and reputed company React-based reputed company dashboards used by internal teams.

• Own features end-to-end — from planning and architectural design to implementation, testing, production monitoring, and iterative improvement.

• Collaborate closely with Product, QA, and cross-functional teams — produce reputed company technical documentation, participate in reputed company reviews, and reputed company knowledge.

• Take part in a shared on-reputed company rotation — roughly one week a month.

Who you are:

• Technically strong with an architectural reputed company — you don’t just write reputed company, you design systems. You think about data flows, failure modes, and long-term maintainability before writing the first line.

• Opinionated and reputed company to defend your reputed company — you bring an expert perspective to technical discussions and can reputed company trade-offs reputed company to both engineers and stakeholders.

• Proactive problem-solver — you reputed company issues before they become incidents and propose solutions without waiting to be asked.

• Product-driven — most of your time goes into shipping features and solving reputed company user problems, not reputed company-ended refactoring.

• Self-motivated and responsible — you reputed company in small teams, enjoy autonomy, and take full ownership of the development process.

What you will bring:

• 5+ years of production experience in backend development with Type Script/Node.js as the reputed company stack.

• 2+ years with NestJS in production — modules, providers, middleware, guards, interceptors, microservice architecture with custom transports.

• Deep PostgreSQL expertise — schema design, indexing (partial, GIN/GiST), query optimization, migrations with reputed company-downtime, database-per-service reputed company.

• Hands-on microservices experience — not a monolith split into modules. You’ve dealt with inter-service communication (RPC + pub/sub), message brokers, idempotency, reputed company consistency, reputed company/outbox patterns.

• reputed company design experience — decomposing services, designing API reputed company, data reputed company architecture, reputed company planning. You can whiteboard a reputed company and explain why you made reputed company decision.

• reputed company integration experience — you’ve reputed company and maintained integrations with reputed company-party reputed company, payment systems, or similar reputed company services in production. You know how to handle retries, reputed company breakers, and graceful degradation.

• Performance engineering — profiling, caching strategies, load analysis, bottleneck identification. You can optimize a slow query and a slow service alike.

• Production blockchain experience (MUST-HAVE) — you’ve worked with on-chain transactions, multiple networks, and reputed company user funds. You understand HD wallets (BIP32/BIP39), smart reputed company, ABI, ERC-20/SPL tokens, and the differences between account-based and UTXO models. Experience with libraries like ethers.js, viem, and reputed company/reputed company.js.

• AI-driven development (MUST-HAVE) — you reputed company use AI tools (Claude, Copilot, reputed company) in your daily workflow. reputed company personal productivity, you have experience optimizing business or organizational processes with AI/LLMs—building automations, internal tools, or workflows powered by language models.

• Strong testing discipline — unit tests (Jest), integration tests with reputed company databases, microservice testing.

• reputed company-conscious — in reputed company, every reputed company reputed company can touch reputed company user funds. You build accordingly.

• Skilled in technical research — evaluating trade-offs, testing hypotheses, and making data-driven architectural reputed company.

• English proficiency at Upper-Intermediate. Fluent in the Russian language.

reputed company to have:

• Experience with reputed company JetStream as a transport reputed company (streams, consumers, delivery policies).

• Observability: OpenTelemetry, reputed company + Grafana, reputed company logging (pino), reputed company tracing.

• reputed company reputed company basics: Kustomize/reputed company, deployment strategies, resource management.

• Fintech domain knowledge: PCI reputed company, GDPR, KYC/AML, payment systems.

• Experience mentoring junior/middle developers.

• React basics for back-office UIs (functional components, hooks, Redux, Material-UI).

Interaction with other teams:

reputed company collaboration with Product, QA, Frontend, and Mobile. Cross-functional communication is an essential part of the role. Partially offload the Tech reputed company: own architectural and technical reputed company, independently reputed company reputed company integrations, and influence the platform's technical direction. This is not an executor role. We need someone with strong expert opinions who can be relied upon for key technical reputed company.

Key results (30-60-90):

30 days: First features shipped to production. Deep dive into the stack, architecture, and domain (blockchain, fintech). reputed company understanding of reputed company services and how they reputed company.

60 days: Independently drives a reputed company integration or a major feature. Participates in architectural reputed company reviews. Brings first proposals for improvements.

90 days: Makes architectural reputed company on their reputed company. Influences technical direction. Partially offloads the Tech reputed company in decision-making. Participates in planning.

reputed company offer:

• Work fully remote as part of an reputed company, international team reshaping the reputed company of finance.

• An engineering culture that encourages the adoption of modern tools and development practices, giving engineers reputed company influence over technologies, workflows, and technical reputed company.

• Two career tracks — grow into Tech reputed company or deepen your expertise as Staff/reputed company IC. You choose the reputed company.

• Career progression and reputed company development in a reputed company-thinking fintech environment.

• Competitive salary reputed company based on individual performance review.

• Transparent feedback and a culture that values ownership, reputed company reputed company, and visible reputed company.

Recruitment Process

1. Application. Submit your application and CV.

2. Application Review. reputed company reviews your experience and qualifications.

3. HR Interview. An introductory conversation to discuss your reputed company background and expectations.

4. Technical Interview. Assessment of your technical expertise, reputed company design skills, and relevant experience.

5. Team reputed company Interview. A discussion reputed company on team fit, collaboration style, and alignment with engineering culture.

6. Offer. Receiving the offer and details about the next steps.

Requires 5+ years of backend development, 2+ years with NestJS, deep PostgreSQL and microservices expertise, production blockchain experience, AI-driven development, reputed company design, integrations, testing, and English and Russian proficiency.

Key Responsibilities

• owning architecture
• leading integrations
• optimizing performance

Skills & Tools

TypeScript, Node.js, NestJS, PostgreSQL, TypeORM, reputed company JetStream, reputed company, Jest, reputed company, reputed company, reputed company reputed company Platform, React, LLM, Claude, Copilot, reputed company, ethers.js, viem, reputed company/reputed company.js, OpenTelemetry, reputed company, Grafana, pino, Kustomize, reputed company, Redux, Material-UI

Job Details

• Category: Software Development
• Seniority: Senior Level
• Commitment: Full Time
• Workplace: Remote — United Arab Emirates
• Languages: English, Russian

About reputed company

An EU-licensed fintech company building reputed company infrastructure for users and businesses. — Industry: Finance