Jobgether
Middle/Senior Golang Engineer
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Middle/Senior Golang Engineer
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Middle/Senior Golang Engineer based in United Kingdom.
As a Middle/Senior Golang Engineer, you’ll build and evolve high-performance backend services powering modern fintech and Web3 payment products. You’ll work extensively with Go, blockchain infrastructure, smart contracts, and EVM-compatible networks. The role covers everything from API and microservice development to transaction processing, cross-chain operations, and secure financial data management. You’ll help design reliable systems capable of handling sensitive payment and fund flows with high availability and low latency. Working closely with product and engineering teams, you’ll contribute to solutions spanning blockchain, payments, and third-party integrations. You’ll also have the opportunity to strengthen production reliability through monitoring, debugging, and observability. This is a fully remote, international engineering environment where technical ownership, security, and scalability are highly valued.
Accountabilities
- Design, develop, and maintain backend services in Go, with a focus on high-performance and low-latency processing for Web3 and card payment systems.
- Build and maintain smart contract integrations, including interactions with on-chain data and transaction flows between blockchain networks and application services.
- Develop and manage APIs connecting blockchain infrastructure, payment systems, and external services.
- Implement secure and efficient transaction-processing workflows, including asynchronous confirmations and sequential transaction orchestration.
- Develop services supporting cross-chain token swaps, stablecoin transactions, cryptocurrency transfers, and fund management across multiple blockchain networks.
- Implement robust security measures for sensitive financial and user data, including encryption, authentication, authorization, and secure data transmission.
- Build and maintain reliable Go microservices deployed in containerized production environments.
- Monitor, troubleshoot, debug, and improve live systems, with particular attention to payment, transaction, and fund flows.
- Work with databases to ensure data consistency, integrity, and performance across financial transaction workflows.
- Contribute to cloud infrastructure, CI/CD pipelines, deployment processes, and production engineering practices.
- Collaborate with other engineers and stakeholders to deliver scalable, secure, and maintainable fintech and blockchain solutions.
- Continuously improve system reliability, performance, observability, and engineering standards.
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Requirements
- 3+ years of professional experience developing applications with Go, including at least 1 year working on Web3 or blockchain-related projects.
- Strong understanding of blockchain fundamentals, particularly Ethereum and EVM-compatible networks.
- Practical experience with smart contracts, Ethereum nodes such as Geth or Infura, blockchain data, and cryptocurrency wallet integrations.
- Understanding of financial transaction lifecycles within Web3 ecosystems, including token transfers, stablecoins, cryptocurrency transactions, and wallet management.
- Strong experience designing and developing RESTful APIs and gRPC services, including knowledge of API security and integration best practices.
- Experience working with relational databases such as MySQL, with a strong focus on consistency, integrity, and performance.
- Hands-on experience with containerized applications and Kubernetes, including deploying and managing Go-based microservices in production.
- Solid understanding of cryptographic principles and experience implementing secure storage and transmission of sensitive data.
- Familiarity with cloud platforms such as AWS, GCP, or Azure.
- Experience with CI/CD pipelines and automated delivery processes for Go applications.
- Strong troubleshooting and analytical skills, particularly when working with complex financial or blockchain transaction flows.
- Good written and spoken English for technical documentation and collaboration; Ukrainian or Russian communication skills are advantageous.
- Ability to work independently in a remote environment while collaborating effectively with distributed engineering teams.
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Nice-to-have skills
- Understanding of zk-rollups, sidechains, and Layer 2 scaling technologies.
- Experience with monitoring, observability, and service-health tooling for high-volume or financial transaction systems.
- Experience with Infrastructure-as-Code tools such as Terraform.
- Knowledge of automated deployment strategies for blockchain and Web3 services.
Benefits
- Fully remote working opportunity with flexible working hours.
- Option to work from home or an office environment where applicable.
- Competitive B2B contract arrangement.
- Home office allowance.
- Premium rates for the company's products.
- Virtual share options scheme available after the probation period.
- Health insurance coverage after the probationary period.
- 20 business days of paid annual leave.
- Paid sick leave.
- Birthday and work anniversary leave.
- Additional length-of-service holidays.
- Access to online events focused on learning, professional development, and team engagement.
- PE accounting support and assistance.
- Opportunity to work on innovative fintech, blockchain, and Web3 payment technologies in an international environment.
How Jobgether works
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
Why Apply Through Jobgether?
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
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