Техлид в блокчейн-продуктах

Tangem is a high-tech company in the blockchain sector was founded in 2017, headquartered in Zug, Switzerland, with branches in North America, Eastern Europe, and APAC. We’re looking for a hands-on Tech Lead to own the technical direction and architecture of our Investment & Growth stream. You’ll work across mobile, backend, and blockchain, ensuring all components work reliably together.

• Own technical architecture across mobile, backend, and blockchain components within the Grow stream;
• Get involved at the start of each major feature to define architecture, identify technical risks, and ensure smooth integration between systems;
• Review architecture decisions across teams and make sure mobile, backend, and blockchain components work reliably together;
• Own the provider layer across swap, on-ramp, staking, and venue integrations;
• Design transaction lifecycle handling for money-moving flows: idempotency, state machines for long-running operations, retries, partial fills, stalled transactions, and reconciliation with partners;
• Lead technical evaluation and onboarding of aggregators, on-ramp providers, staking providers, exchanges, and perp venues.
• Own end-to-end delivery for all Grow sub-streams: scope, estimates, dependencies, release plan, and launch;
• Coordinate technical decisions and dependencies across iOS, Android, backend, and blockchain teams;
• Run one delivery plan across sub-streams competing for shared engineering capacity and negotiate trade-offs;
• Manage dependencies on shared platform teams and the Store and Spend streams;
• Report status, risks, and forecasts to the CTO.
• Provide technical leadership across the stream, working closely with functional engineering leads;
• Support engineers through technical guidance, feedback, and hiring;
• Own on-call and incident response wherever user funds are in motion, with severity levels and MTTR targets;
• Build deeper domain expertise across teams, particularly around execution, settlement, and custody.

• 8+ years in engineering, with 3+ years of technical leadership experience delivering consumer products in production;
• Strong hands-on architecture experience across mobile, backend, and blockchain systems. Able to design and review technical solutions across all three areas, identify integration risks, and guide implementation;
• Experience with Kotlin or Node.js.
• Strong understanding of backend architecture, APIs, microservices, asynchronous communication, and distributed systems;
• Solid mobile engineering knowledge. Understands iOS and Android architecture, security, performance, and release processes. Able to review technical decisions and identify risks;
• Strong blockchain fundamentals. Understands how smart contracts work and interact with applications, common blockchain standards (including EVM/EIP/ERC concepts), transaction execution, and basic smart contract security risks. Hands-on smart contract development is not required;
• Still technical. Able to investigate production issues and debug failed transactions end to end. This is not a purely managerial role.
• Multi-chain in practice: EVM plus at least one of Solana, TON, Bitcoin/UTXO, or Cosmos. Transaction lifecycle, fee and nonce management, re-orgs, token approvals, address derivation, and signing constraints;
• DeFi integration: has shipped DEX aggregation and routing, staking (delegation, unbonding, reward accounting), or yield vaults. Treats slippage, MEV, and quote decay as engineering problems;
• Trading-venue integration: experience with exchange APIs in production — REST and WebSocket, rate limits, order lifecycle, deposits and withdrawals, settlement, and custody boundaries. Can explain how a quote becomes a fill and what breaks in between;
• Money-movement correctness: idempotency, exactly-once semantics, reconciliation, long-running state machines, and observability. Has been on call for systems where a bug costs users money;
• Mobile delivery: has shipped with iOS and Android teams — release trains, backward compatibility across app versions, feature flags, and forced upgrades;
• Experience coordinating architecture and delivery across multiple teams or workstreams;
• Has managed technical relationships with third-party providers, including holding them accountable.
• Будет плюсом: Has built systems where settlement, reconciliation, and order lifecycle carried real consequences: brokerage, CFD, payments, or PSP; Derivatives literacy — margin, funding rates, liquidation mechanics. Directly relevant to the Hyperliquid sub-stream; Prediction markets or event contracts. Directly relevant to the Polymarket sub-stream; Regulated delivery: MiCA and CASP, travel rule, geo-restriction design, KYC and AML flows; Security engineering around signing flows, key material, and third-party risk

• Stability, development, participation in the future unicorn's growth;
• Remote work from anywhere in the world;
• Competitive salary in EUR/USDT;
• Unlimited vacation;
• Birthday presents;
• Compensation for the purchase of necessary technical devices for the work;
• Paid sick leaves.