Tech Lead - Banking Service
Status
London, United Kingdom
Full time
Hybrid
Compensation is not specified
Role
Backend Engineer
Description
We are seeking a talented individual to join our team and contribute to the design, development, maintenance, and enhancement of software for various projects within our organization. These projects are complementary to our core business and operated efficiently with a compact team. Your role will involve actively participating in crafting scalable applications, covering components from frontend UI to backend infrastructure.
About Us
Our objective is to establish a seamless, secure, and innovative banking environment for our clientele. We require a Banking Service Tech Lead to play a pivotal role in setting up foundational systems and leading technological advancements.
Role Overview
As the Banking Service Tech Lead, you will take charge of the architecture, creation, and sustenance of our essential banking infrastructure. Collaborating closely with interdisciplinary teams, you will ensure that our banking systems comply with regulations, adhere to security protocols, and provide exceptional customer journeys. This leadership position demands a blend of technical proficiency and robust team management capabilities to build and guide competent teams.
Key Responsibilities
- Lead the technical blueprint and execution of core banking systems utilizing Golang or Ruby on Rails
- Establish the groundwork for our digital banking platform encompassing payment networks, account management, and transaction handling
- Design and implement secure, scalable banking APIs following Open API standards
- Work with compliance teams to integrate robust KYC/AML systems and processes
- Develop data reporting mechanisms aligned with regulatory mandates and business insights
- Architect and implement financial treasury processes, FX exchange capabilities, and crediting mechanisms
- Provide guidance on integrating with payment networks and banking collaborators
- Ensure all systems comply with banking regulations and security expectations
- Cultivate, mentor, and oversee engineering teams, facilitating career progression and delivering performance feedback
- Drive excellence in engineering through best practices, code reviews, and constant enhancement
- Manage project timelines, resource allotment, and technical deliverables
- Collaborate with product, design, and business stakeholders to align technical strategies with organizational objectives
- Act as the representative of the engineering team in executive and cross-functional discussions
Required Qualifications
- Over 8 years of software development expertise, with a minimum of 5 years in financial technology
- More than 3 years of team management experience, leading engineering teams consisting of 5+ developers
- Proficiency in either Golang or Ruby on Rails
- Demonstrated capability in building and scaling banking or financial service platforms
- In-depth knowledge of banking operations, payment networks, and financial systems
- Experience in implementing KYC/AML solutions and compliance frameworks
- Familiarity with data security practices pertinent to financial institutions
- Proficiency in treasury management systems, FX exchange, and crediting systems
- Understanding of RESTful APIs and Open API specifications
- Experience with microservices architecture and cloud-native applications
- Strong leadership skills, including the ability to inspire and motivate teams
- Adept at conflict resolution and problem-solving
- Excellent communication skills, translating complex technical concepts for non-technical audiences
Preferred Qualifications
- Past engagement with global bank auditors and regulatory compliance teams
- Familiarity with integrating banking core SaaS systems such as ThoughtMachine, Audax, or Temenos
- Experience in collaboration with System Integrators (SI) for extensive financial projects
- Understanding of ISO 20022, PSD2, or other banking standards
- Exposure to real-time payment systems and card processing networks
- Knowledge of blockchain or distributed ledger technologies in financial contexts
- Proficiency with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes)
- Background in data science or analytics related to financial services
- Experience in managing distributed or remote engineering teams
- Successful track record of delivery in highly regulated environments
Leadership Competencies
- Strategic thinking and translating business vision into technical roadmaps
- Effective team building and talent development
- Skilled in stakeholder management and executive communication
- Ability to foster consensus amid diverse teams and perspectives
- Proven track record of delivering complex projects within allocated time and budget
- Adaptability and resilience in fast-paced, changing settings
- Dedication to cultivating an inclusive and collaborative team culture
What We Offer
- Opportunity to shape a digital bank's foundation from inception
- Competitive salary and equity packages
- Comprehensive health benefits
- Flexible work arrangements
- Continuous learning and professional growth opportunities
- Collaborative and innovative work setting
- Career progression and leadership development programs
Life @ Crypto.com
Empowerment to explore new horizons within a supportive and ambitious team
Transformational and proactive work atmosphere fostering innovative solutions
Internal growth opportunities enhancing personal and professional development
Strong camaraderie among colleagues, committed to mutual support
Unified team efforts towards universal cryptocurrency adoption
Flexible work arrangements promoting work-life balance
Career advancement prospects via internal mobility programs
Attractive work perks, including a crypto.com visa card
Benefits
- Competitive salary
- Generous annual leave entitlement including birthday days off
- Work flexibility and hybrid or remote setups
- Internal mobility program for diverse career paths
- Work perks including a crypto.com visa card
About Crypto.com
Founded in 2016, Crypto.com boasts a customer base exceeding 80 million and stands as the world's fastest-growing global cryptocurrency platform. Our mission is to make Cryptocurrency in Every Wallet™ a reality. Upheld by security, privacy, and compliance principles, Crypto.com is dedicated to accelerating cryptocurrency adoption through innovation, empowering future creatives, and builders to foster a more equitable digital ecosystem.
Crypto.com is an equal opportunities employer, upholding transparency and fairness in all opportunities, valuing diversity and inclusion to unify a team with varying backgrounds and strengths. Personal data provided by applicants is used solely for recruitment purposes. Only shortlisted candidates will be contacted.
Skills Required
Сrypto.com
Website
Сrypto.comCompany size
Not specified
Location
United States
Description
Not specified
Status
Cheesecake Labs
[Contractor] Senior Blockchain Engineer
Austin, USA +1
Austin, USA +1
Full time
Hybrid
Cheesecake Labs is a software design and development company that delivers digital products that drive business impact. Today, with more than 10 years of experience connected to Silicon Valley, Cheesecake Labs has delivered 300+ digital products for a diverse range of clients, from Fortune 500 to fast-growing startups, that have the challenge of innovating in the world’s most competitive markets.
Among our clients, we have leading brands such as AB InBev, Singularity University, FINN and Tapcart. Our commitment to high-quality services has earned us recognition as the Top 1 Mobile Development company in Latin America and among the top 10 globally for Mobile App and Custom Software Development by Clutch and a GPTW-certified company for 10 years in a row.
The story behind this role
We’re continuously working with companies building ambitious digital products across Web2, Web3, AI, and emerging technologies. Many of our client engagements start with strategic conversations and evolve quickly into active projects.
That’s why we maintain a network of strong contractor engineers we can engage quickly when the right projects come in.
This is not a traditional long-term internal role.It’s a contractor opportunity designed for people who enjoy working across different products, clients, technologies, and business challenges in fast-moving environments.
We’re looking for a Blockchain Engineer (Contractor) who enjoys solving complex technical problems, navigating ambiguity, and contributing to real-world products used by companies across the US and Europe.
Engagement details
Contractor / project-based engagement
Paid in USD/hour
Flexible allocation depending on project availability and fit
Opportunities may vary in duration, scope, and weekly commitment depending on client needs
Some opportunities may start immediately. Others may become active as new projects enter our pipeline.
What this role actually looks like
This is not a “receive tasks and code” type of role.
On a typical project, you might:
Build and evolve blockchain infrastructure services that power production-grade digital asset platforms
Work closely with team members to figure out what should actually be built
Integrate backend systems with Layer-1 blockchains, ensuring reliability, scalability, and operational resilience
Build services such as blockchain indexers, event processors, chain APIs, wallet services, and transaction pipelines
Design and improve blockchain workflows around transaction execution, event monitoring, reconciliation, and failure recovery
Make trade-offs between scalability, security, observability, maintainability, and business priorities
Collaborate with international clients and multidisciplinary teams to shape technical solutions for security-critical blockchain products
What tends to work well here
We’ve seen that people who thrive in this type of engagement usually:
Have strong experience building or integrating blockchain infrastructure in production environments
Understand Layer-1 blockchain mechanics such as transaction lifecycle, confirmations, finality, forks, reorgs, and event propagation
Feel comfortable building backend services, APIs, event-driven systems, and distributed architectures beyond the blockchain layer itself
Have a fullstack mindset — even if blockchain and backend are your strengths, you're comfortable navigating adjacent technologies and collaborating across the stack when needed
Enjoy solving complex infrastructure problems where security, observability, and reliability matter as much as feature delivery
Feel totally confident working in English with international clients and teams (calls, discussions, async) — at least advanced level
Already use AI as part of their day-to-day workflow — whether for protocol analysis, development, debugging, documentation, testing, or workflow acceleration
This probably won’t be your thing if
Just to be transparent:
You’re looking for a highly stable long-term internal role with fixed scope and predictable allocation
You prefer highly structured environments with rigid processes and very defined requirements
You’re uncomfortable navigating ambiguity or fast-changing technical contexts
You’d rather avoid client interaction or cross-functional collaboration
You dislike context-switching between technologies, projects, and business domains
There’s nothing wrong with any of that — it’s just not how these engagements usually operate.
One last thing
To participate in this selection process, you must:
Have a valid business registration in your country (CNPJ, VAT, EIN, or equivalent)
Have a bank account eligible to receive USD payments
Be able to issue invoices accordingly
Be based in the USA
These requirements are necessary for contractor engagement and payment processing.
Not sure if you check every box?
That’s okay. We know that many great people — especially from underrepresented groups — hesitate to apply unless they meet 100% of the requirements.If this opportunity sounds interesting, we’d still love to hear from you.
LINK TO APPY: https://cheesecakelabs.hire.trakstar.com/jobs/fk0zr7h/
Among our clients, we have leading brands such as AB InBev, Singularity University, FINN and Tapcart. Our commitment to high-quality services has earned us recognition as the Top 1 Mobile Development company in Latin America and among the top 10 globally for Mobile App and Custom Software Development by Clutch and a GPTW-certified company for 10 years in a row.
The story behind this role
We’re continuously working with companies building ambitious digital products across Web2, Web3, AI, and emerging technologies. Many of our client engagements start with strategic conversations and evolve quickly into active projects.
That’s why we maintain a network of strong contractor engineers we can engage quickly when the right projects come in.
This is not a traditional long-term internal role.It’s a contractor opportunity designed for people who enjoy working across different products, clients, technologies, and business challenges in fast-moving environments.
We’re looking for a Blockchain Engineer (Contractor) who enjoys solving complex technical problems, navigating ambiguity, and contributing to real-world products used by companies across the US and Europe.
Engagement details
Contractor / project-based engagement
Paid in USD/hour
Flexible allocation depending on project availability and fit
Opportunities may vary in duration, scope, and weekly commitment depending on client needs
Some opportunities may start immediately. Others may become active as new projects enter our pipeline.
What this role actually looks like
This is not a “receive tasks and code” type of role.
On a typical project, you might:
Build and evolve blockchain infrastructure services that power production-grade digital asset platforms
Work closely with team members to figure out what should actually be built
Integrate backend systems with Layer-1 blockchains, ensuring reliability, scalability, and operational resilience
Build services such as blockchain indexers, event processors, chain APIs, wallet services, and transaction pipelines
Design and improve blockchain workflows around transaction execution, event monitoring, reconciliation, and failure recovery
Make trade-offs between scalability, security, observability, maintainability, and business priorities
Collaborate with international clients and multidisciplinary teams to shape technical solutions for security-critical blockchain products
What tends to work well here
We’ve seen that people who thrive in this type of engagement usually:
Have strong experience building or integrating blockchain infrastructure in production environments
Understand Layer-1 blockchain mechanics such as transaction lifecycle, confirmations, finality, forks, reorgs, and event propagation
Feel comfortable building backend services, APIs, event-driven systems, and distributed architectures beyond the blockchain layer itself
Have a fullstack mindset — even if blockchain and backend are your strengths, you're comfortable navigating adjacent technologies and collaborating across the stack when needed
Enjoy solving complex infrastructure problems where security, observability, and reliability matter as much as feature delivery
Feel totally confident working in English with international clients and teams (calls, discussions, async) — at least advanced level
Already use AI as part of their day-to-day workflow — whether for protocol analysis, development, debugging, documentation, testing, or workflow acceleration
This probably won’t be your thing if
Just to be transparent:
You’re looking for a highly stable long-term internal role with fixed scope and predictable allocation
You prefer highly structured environments with rigid processes and very defined requirements
You’re uncomfortable navigating ambiguity or fast-changing technical contexts
You’d rather avoid client interaction or cross-functional collaboration
You dislike context-switching between technologies, projects, and business domains
There’s nothing wrong with any of that — it’s just not how these engagements usually operate.
One last thing
To participate in this selection process, you must:
Have a valid business registration in your country (CNPJ, VAT, EIN, or equivalent)
Have a bank account eligible to receive USD payments
Be able to issue invoices accordingly
Be based in the USA
These requirements are necessary for contractor engagement and payment processing.
Not sure if you check every box?
That’s okay. We know that many great people — especially from underrepresented groups — hesitate to apply unless they meet 100% of the requirements.If this opportunity sounds interesting, we’d still love to hear from you.
LINK TO APPY: https://cheesecakelabs.hire.trakstar.com/jobs/fk0zr7h/
Marcus Lindberg
Senior Blockchain Engineer - Low-Latency Execution Infrastructure (HyperEVM / Hyperliquid)
Full time
Remote
we’re looking for a senior blockchain engineer to build low-latency execution infrastructure around hyperevm and hyperliquid-related trading systems.
this is not a frontend or dapp role. the focus is on real-time execution systems, chain-native infrastructure, and market-aware backend engineering where latency, ordering, and state correctness directly impact execution outcomes.
you will work on systems that operate under noisy, adversarial, and highly dynamic conditions, including delayed or missing websocket events, rpc inconsistencies, transaction lifecycle complexity, state desynchronization, retries, and recovery logic.
core responsibilities include building and maintaining realtime blockchain data pipelines, websocket and rpc streaming systems, execution orchestration layers, liquidity-aware routing logic, transaction lifecycle management, and integration with orderbook and market data systems.
we are specifically looking for engineers who think in systems rather than features. meaning understanding how data flows through pipelines, how state evolves over time, how failures propagate, and how to design systems that recover automatically without manual intervention.
areas of work include:
- realtime blockchain data ingestion
- mempool-aware execution flows
- transaction lifecycle handling
- execution sequencing and routing
- websocket and rpc infrastructure
- state synchronization systems
- liquidity and orderbook integration
- performance and latency optimization
you should be comfortable working with distributed systems, asynchronous event processing, and latency-sensitive backend architectures.
strong experience in one or more of the following areas is highly relevant:
- exchange infrastructure
- trading systems
- execution engines
- blockchain indexers
- realtime event systems
- arbitrage systems
- rpc/node infrastructure
- defi backend systems
- low-latency backend engineering
preferred technical stack:
- typescript / node.js
- go
- rust
- python
- postgres
- clickhouse
- redis
- kafka or similar messaging systems
- docker
- linux environments
- evm rpc internals
- websocket infrastructure
ecosystem familiarity:
- ethereum, arbitrum, base, optimism, bsc
- hyperliquid / hyperevm
- foundry
- ethers.js / viem
- geth / erigon / nethermind
- dex and amm mechanics
- liquidity math, slippage, gas strategy, routing logic
this role is not suitable for:
- frontend-only developers
- nft or basic dapp experience only
- tutorial-level web3 developers
- candidates without production systems experience
we value engineers who have built real systems where correctness, latency, and reliability matter under load. we care less about buzzwords and more about concrete systems you have personally built and operated.
ideal candidates can clearly explain:
- system architecture decisions
- bottlenecks and tradeoffs
- failure modes and recovery strategies
- latency considerations in real systems
- production debugging experience
working style:
- remote
- async-first
- low bureaucracy
- high ownership
- engineering-driven team
- direct technical communication
we strongly prefer practical engineering depth over polished presentation. if you have built or worked on systems involving realtime data, trading infrastructure, blockchain execution, or latency-sensitive backend systems, please include details of those systems when applying.
Payment in Crypto
Zignaly
Blockchain Engineer ‑ Copy-Trade Protocol at Zignaly
Singapore
Singapore
Full time
Remote
Mission:Emit immutable trade clones at the speed of mempools. Engineer on-chain vault + relay contracts that ingest master signals, laser-bridge them across EVM chains, and absorb slippage, MEV, and NFL Sunday-level volatility without exposing followers to liquidation contagion.
Stack & Level Requirements
Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana
Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies
Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality
MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools
Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events
Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code
Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hook
Hard-Check Trader DNA
⚔️ You have personally executed >$10 k notional on perpetuals & on-chain or cross-margined DeFi strategies with stress traces or Etherscan proof of addr.
⚔️ You’ve felt (or caused) impermanent loss >10 % in a single block.
⚔️ Optional but revered: vault or strategy on DeFiLlama/Apeboard with >$50 k TVL linked to your keys.
Responsibilities
Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.
Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).
Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).
Draft governance & upgrade timelocks (OpenZeppelin UUPS).
Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.
Soft Enemies – Don’t apply
ifYou only deployed ERC-20 tokens and never** felt liquidation missiles.
You ignore MEV game theory.
Perks / Weapons Cache
Hardware fund: Apple M Max + 64 GB RAM, 10 Gbps fibre hookup.
Personal copy-trading gas allowance 1 k USD monthly – trade openly on testnet, share P&L in public.
Health stipend for red-eye debugging—includes premium dark-coffee & builder-milk.
Additional 1 % of inflation-scheduled supply upon achieving $100 m copy-AUM on ETH L2.
Apply Now
Attach:
Your latest CV.
Etherscan link to your most brutal trading bot / vault (& TVL proof).
GitHub repo (>20 stars) or archived PR of previous audited live contract address.
Recorded deep-dive Loom of <180 s showing circuit breaker you built.
Cut-over: Applications stack-ranked & closed within 7 calendar days or when 3 offers signed—whichever happens first. Ready to ship settlement layer blood sport? 💥☠
Stack & Level Requirements
Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana
Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies
Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality
MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools
Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events
Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code
Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hook
Hard-Check Trader DNA
⚔️ You have personally executed >$10 k notional on perpetuals & on-chain or cross-margined DeFi strategies with stress traces or Etherscan proof of addr.
⚔️ You’ve felt (or caused) impermanent loss >10 % in a single block.
⚔️ Optional but revered: vault or strategy on DeFiLlama/Apeboard with >$50 k TVL linked to your keys.
Responsibilities
Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.
Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).
Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).
Draft governance & upgrade timelocks (OpenZeppelin UUPS).
Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.
Soft Enemies – Don’t apply
ifYou only deployed ERC-20 tokens and never** felt liquidation missiles.
You ignore MEV game theory.
Perks / Weapons Cache
Hardware fund: Apple M Max + 64 GB RAM, 10 Gbps fibre hookup.
Personal copy-trading gas allowance 1 k USD monthly – trade openly on testnet, share P&L in public.
Health stipend for red-eye debugging—includes premium dark-coffee & builder-milk.
Additional 1 % of inflation-scheduled supply upon achieving $100 m copy-AUM on ETH L2.
Apply Now
Attach:
Your latest CV.
Etherscan link to your most brutal trading bot / vault (& TVL proof).
GitHub repo (>20 stars) or archived PR of previous audited live contract address.
Recorded deep-dive Loom of <180 s showing circuit breaker you built.
Cut-over: Applications stack-ranked & closed within 7 calendar days or when 3 offers signed—whichever happens first. Ready to ship settlement layer blood sport? 💥☠
Payment in Crypto
futur pulse
Earn $300-$1000/week - 50% Comission (crypto offers)
Part time
Hybrid
I am looking for serious closer/affiliate to sell a proven digital product
Offers :
product price :$97
Your cut : 50% ( $48 per sale )
Paid same day in USDT after proof of sale
Why this converts: Beginner friendly "make money" angle
Clear outcom: generate 150+ USDT in 24h
no subcription/no API cost
Ready- to use- landing page
Your role:
Promote your link
Close deals ( Dms,network,clients)
Product : lead generation tool ( Google maps ) packaged as a "cash systeme" already tested strong-demand
Number close
5 sales/day = $240 day no cap
Looking for motivated sellers only .
Send "Ready" to get started
Offers :
product price :$97
Your cut : 50% ( $48 per sale )
Paid same day in USDT after proof of sale
Why this converts: Beginner friendly "make money" angle
Clear outcom: generate 150+ USDT in 24h
no subcription/no API cost
Ready- to use- landing page
Your role:
Promote your link
Close deals ( Dms,network,clients)
Product : lead generation tool ( Google maps ) packaged as a "cash systeme" already tested strong-demand
Number close
5 sales/day = $240 day no cap
Looking for motivated sellers only .
Send "Ready" to get started
Payment in Crypto
joseangel Valera
Expert AI Video Creator for Realistic Human Avatars (Marketing Videos)
Part time
Remote
We are looking for an experienced AI video creator to produce high-impact marketing videos for our landing pages and website. The main goal is to drive conversions by showcasing our products/services with engaging, realistic AI-generated content.
Critical requirement:
Videos must feature ultra‑realistic AI human avatars (spokespersons) that are virtually indistinguishable from real people. Natural voiceovers, perfect lip‑sync, and professional quality are a must.
Preferred tools (but not limited to):
Creatify.ai, Synthesia, HeyGen, DeepBrain AI, or any other leading platform known for realistic AI human generation. Please specify which tools you are proficient in.
Critical requirement:
Videos must feature ultra‑realistic AI human avatars (spokespersons) that are virtually indistinguishable from real people. Natural voiceovers, perfect lip‑sync, and professional quality are a must.
Preferred tools (but not limited to):
Creatify.ai, Synthesia, HeyGen, DeepBrain AI, or any other leading platform known for realistic AI human generation. Please specify which tools you are proficient in.
Payment in Crypto