Posted 9 days ago
Senior Backend Engineer (Go / Blockchain) – Fintech
@ Augmented
Toronto, Ontario
Overview
Augmented is hiring a senior Go engineer, on behalf of a fintech client, to build backend services that move money and digital assets on-chain in Toronto, ON. The work covers ledgers, payment and settlement flows, custody integrations and blockchain node and RPC integration. Candidates need 6+ years of backend experience, including 3+ years of production Go, and must be authorized to work in Canada without LMIA sponsorship.
Responsibilities:
- Design and own Go backend services for payments, settlement and digital-asset transfers
- Build double-entry ledger and reconciliation systems for on-chain and off-chain balances
- Integrate with EVM blockchain networks through nodes and RPC providers
- Integrate custody, wallet, banking and payment partners
- Own reliability, observability, on-call and incident response
Requirements summary:
- 6+ years of backend engineering, with 3+ years of production Go
- Hands-on experience building on blockchains and smart-contract integration
- Experience with payments, ledgers, trading, settlement or reconciliation systems
- Strong distributed systems, SQL and data modeling skills
- Production cloud, Docker, Kubernetes and CI/CD experience
- Authorized to work in Canada, based in Toronto, ON
Tools & skills
Source and dates
Source type not verified · apify-linkedin
- Employer posting date
- 2026-11-05
- First seen by our source
- 2026-11-14
- Source record updated
- 2026-11-14
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Software development |
| Experience | 6+ years |
| Hours per week | 40 (estimated) |
| Travel | air: none · ground: none |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Augmented
| Field | Value |
|---|---|
| Open jobs on Jobsy | 1 |
Our fintech client is hiring a senior Go engineer to build the backend services that move money and digital assets on-chain, based in Toronto, ON.
About the companyOur client is a fast-growing fintech building financial infrastructure that connects traditional payment rails with blockchain networks. Their platform handles payments, settlement and digital-asset movement for institutional and consumer customers, in a regulated environment where correctness and security come first.
About the roleYou will design and own core backend services in Go: ledgers, payment and settlement flows, wallet and custody integrations, and the services that read from and write to public blockchains. You will work closely with product, compliance and security, and help set engineering standards as the team grows. This is a hands-on senior role with real ownership of systems that move money.
What you'll do- Design, build and run high-throughput, low-latency backend services in Go for payments, settlement and digital-asset transfers
- Build and maintain double-entry ledger and reconciliation systems that keep on-chain and off-chain balances in sync
- Integrate with blockchain networks (EVM chains and others) through nodes and RPC providers: transaction construction, signing, broadcasting, confirmation tracking, reorg handling and event indexing
- Integrate with custody and wallet providers (MPC or HSM-based key management) and with banking and payment partners
- Design clean, versioned APIs (REST / gRPC) and event-driven flows (Kafka or similar) with idempotency, retries and exactly-once semantics where money is involved
- Own reliability: observability, alerting, on-call, incident response and post-mortems for the services you build
- Build in security and compliance from the start: audit trails, access controls, AML / KYC and travel-rule touchpoints, SOC 2 controls
- Review code, mentor engineers and drive technical design for new products
- 6+ years of backend software engineering, with 3+ years writing production Go (concurrency, goroutines and channels, profiling, testing)
- Hands-on experience building on blockchains: interacting with nodes and RPC, constructing and signing transactions, smart-contract integration, indexing on-chain data
- Experience building financial systems where accuracy matters: payments, ledgers, trading, settlement or reconciliation
- Strong grasp of distributed systems: consistency, idempotency, message queues, failure handling
- Solid SQL and data modeling (PostgreSQL or similar) for transactional workloads
- Production experience on cloud infrastructure (AWS or GCP), Docker and Kubernetes, CI/CD
- Security-first mindset around keys, secrets and sensitive financial data
- Clear written and verbal communication; comfortable owning decisions and working with non-engineering stakeholders
- Authorized to work in Canada and able to work from Toronto, ON. (Open work permit, PR, Citizenship). No LMIA sponsorship.
- Solidity or Rust, or experience auditing and testing smart contracts
- Stablecoin, on/off-ramp, tokenization or cross-border payments experience
- Work with MPC custody providers (e.g., Fireblocks) or HSM-based key management
- Layer-2 / rollup, Solana or Cosmos SDK experience
- Familiarity with regulatory frameworks: MSB / money transmission, AML / KYC, travel rule, SOC 2, PCI DSS
- Open-source contributions to Go or blockchain projects
- Prior startup or scale-up experience
- Go · PostgreSQL · Redis · Kafka · gRPC / REST · AWS (or GCP) · Kubernetes · Terraform · Ethereum / EVM chains · go-ethereum · Datadog / Prometheus
Journal
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