Saurabh Singh
Saurabh Singh

Consulting

Modernize the platform, raise reliability, and ship faster — with a hands-on technical partner.

I help engineering teams modernize platform architecture, improve reliability, and accelerate delivery - across cloud-native backend systems, DevOps pipelines, and blockchain-native products.

Discuss your engineering challenge Find your situation
  • Architecture reviewFocused assessment
  • Delivery leadership3–6 months, embedded
  • AdvisoryOngoing
engagement-brief.mddraft

An example engagement brief that cycles through the situations listed in the triage section below.

01Triage

Where does it hurt?

Pick the situation closest to yours. You'll see what I'd focus on, what changes, and evidence from similar work.

What are you dealing with?
triage platform-modernizationmatch

Focus area

Platform modernization

Monolith decomposition, service boundaries, API compatibility, and incremental migration strategies.

What changes

  • Clear migration roadmap with preserved external contracts
  • Reduced coupling and faster release cycles
  • GitOps-ready deployment pipelines

Evidence

0

breaking API changes while decomposing a 24+ module monorepo

Transaction platform

Read the case study

Start withDelivery leadership · 3–6 months, embedded

Discuss this
triage blockchain-web3match

Focus area

Blockchain & Web3 engineering

End-to-end blockchain product engineering from wallets and smart contracts to DeFi, chain integration, and production node infrastructure.

What changes

  • Secure wallet and custody architecture with operational guardrails
  • Smart contract and protocol design with audit-ready patterns
  • Cross-chain, DEX, and DeFi systems built for throughput and reliability
  • Indexer, validator, and node ops aligned with production SLOs

Evidence

16s to <1s

critical-path execution on a forwarder handling 2M+ cross-chain transactions

Router Protocol

Read the case study

Start withArchitecture review · Focused assessment

Discuss this
triage workflowsmatch

Focus area

Distributed systems & workflows

Event-driven architecture, Kafka pipelines, Camunda BPMN orchestration, and high-throughput transaction systems.

What changes

  • Reliable async processing at scale
  • Workflow test automation with BDD patterns
  • Performance improvements on critical paths

Evidence

~8 wks to min

carrier onboarding effort, via configuration-driven Camunda workflows

Zinnia

Start withDelivery leadership · 3–6 months, embedded

Discuss this
triage observabilitymatch

Focus area

Reliability & observability

Datadog consolidation, actionable alerting, incident automation, and production support efficiency.

What changes

  • Reduced alert noise and faster triage
  • Standardized monitor and incident routing
  • Improved on-call experience for engineering teams

Evidence

1,000+ to <100

Datadog alerts and dashboards rationalized into high-value monitors

Zinnia

Start withArchitecture review · Focused assessment

Discuss this
triage cloud-devopsmatch

Focus area

Cloud, DevOps & security

Production cloud architecture, container platforms, DevOps automation, and applied cryptography for secure, scalable systems.

What changes

  • AWS-first designs with portable patterns for GCP and Azure
  • Container and serverless platforms ready for production traffic
  • IaC-driven environments with stronger IAM and encryption posture
  • Cryptographic foundations for custody, signing, and data protection

Evidence

100K

customers on an HSM-backed, multi-sig cold custody platform

CoinDCX

Read the case study

Start withArchitecture review · Focused assessment

Discuss this
triage technical-leadershipmatch

Focus area

Technical leadership

Team hiring, mentoring, architecture governance, and delivery execution for platform engineering teams.

What changes

  • Stronger engineering culture and standards
  • Better cross-functional collaboration
  • Predictable delivery on complex initiatives

Evidence

5

engineers led across architecture, delivery, hiring, and mentoring

Zinnia

Start withAdvisory · Ongoing

Discuss this

02In depth

Engagements with a full write-up

Where I have published the approach, the tradeoffs, and the evidence behind the work.

  • Migrate your monolith to microservices without breaking existing APIs.

    Hands-on consulting to decompose a monolith into independently deployable services while preserving API compatibility and keeping migration risk low.

    • 24+ Transaction platform
    • 0 Transaction platform

    Explore this service

  • Design AWS workloads your team can deploy, observe, and secure without heroics.

    Consulting on AWS container platforms, deployment automation, observability, and confidential computing — grounded in production systems, not reference diagrams.

    • <2ms Transaction platform
    • 1,000+ to <100 Zinnia

    Explore this service

  • Build custody and cross-chain systems that hold up when the value moving through them is real.

    Consulting on wallet custody, HSM and multi-signature key management, cross-chain infrastructure, and high-throughput blockchain indexing for production systems.

    • 16s to <1s Router Protocol
    • 100K CoinDCX

    Explore this service

  • Put agents into production without handing them your blast radius.

    Consulting on the infrastructure around LLM agents: which identity a tool call carries, what context an agent is trusted with, and where a human stays in the loop.

      Explore this service

    03 Receipts

    Outcomes I can point to

    From production systems I led or built. Linked where a full case study exists.

    1. 16s to <1sCritical-path transaction executionRouter ProtocolCase study : Router Protocol
    2. $1B+Volume across 2M+ cross-chain transactionsRouter ProtocolCase study : Router Protocol
    3. 0Breaking API changes across a 24+ module decompositionTransaction platformCase study : Transaction platform
    4. 1,000+ to <100Datadog alerts and dashboards consolidatedZinnia
    5. ~8 wks to minCarrier onboarding effortZinnia
    6. ~30msCustody policy evaluation, 100K customersCoinDCXCase study : CoinDCX
    7. 450M/dayPeak SMS delivery scale supportedJio Platforms

    04Engagement

    From first message to the right engagement

    A short note, a focused conversation, then a scope that fits the problem.

    1. 01

      Share the challenge

      Send a short note on your platform, cloud, or blockchain problem - migration, DevOps, wallet infrastructure, cross-chain integration, or team leadership.

    2. 02

      Explore the fit

      A focused conversation on context, constraints, and what a good outcome looks like.

    3. Choose an engagement

      • Architecture review

        Focused assessment

        Focused assessment of platform architecture, deployment model, and operational readiness with actionable recommendations.

      • Delivery leadership

        3–6 months, embedded

        Embedded technical leadership for high-stakes migrations, platform builds, or reliability initiatives over 3-6 months.

      • Advisory

        Ongoing

        Ongoing strategic guidance on team structure, engineering practices, and technology choices.

    05Technical depth

    Stack atlas

    Three domains where I go deep. Headline capabilities first; open a domain for the full list.

    Domain 018 capabilities

    Blockchain & Web3

    Hands-on experience across wallet platforms, DeFi, cross-chain infrastructure, and chain ops - from architecture through production delivery.

    15 chains & ecosystems

    • Wallet development (custody, hot/cold storage, HSM, multi-sig)
    • Smart contract development and security review
    • Chain integration and cross-chain messaging
    • DEX and DeFi protocol engineering
    4 more + ecosystem
    • Blockchain indexing and event-driven pipelines
    • Node, validator, and chain infrastructure management
    • Bridge and forwarder architecture at production scale
    • BaaS platform design (Ethereum, Hyperledger Fabric, multi-cloud)

    Chains & ecosystems

    • Bitcoin
    • Ethereum
    • Polkadot
    • Cosmos
    • Hyperledger Fabric
    • Solana
    • Sui
    • Tron
    • BNB Smart Chain
    • Base
    • Hyperliquid
    • Polygon
    • Avalanche
    • Optimism
    • Chainlink

    Domain 029 capabilities

    Cloud & DevOps

    Production cloud architecture and DevOps delivery across AWS, Google Cloud, and Azure - from networking and containers to data, ML, and secure operations.

    17 AWS services

    • Container orchestration with ECS, EKS, and Fargate
    • Serverless and event-driven architecture with Lambda and API Gateway
    • Load balancing, VPC design, and secure network segmentation
    • IAM policies, KMS encryption, and secrets management
    5 more + ecosystem
    • GitOps, CI/CD, and infrastructure-as-code (Terraform, GitHub Actions)
    • Managed data and messaging: RDS, DynamoDB, S3, ElastiCache, MSK
    • ML platform setup and operationalization with SageMaker
    • Confidential computing patterns with AWS Nitro Enclaves
    • Multi-cloud delivery on Google Cloud and Azure equivalents

    AWS services

    • IAM
    • EC2
    • ALB
    • ECS
    • EKS
    • KMS
    • API Gateway
    • Nitro Enclave
    • Lambda
    • Fargate
    • S3
    • RDS
    • DynamoDB
    • VPC
    • SageMaker
    • ElastiCache
    • MSK

    Cloud platforms

    • AWS
    • Google Cloud
    • Azure

    Hands-on with equivalent services on Google Cloud and Azure for compute, storage, networking, identity, and managed data platforms.

    Domain 035 capabilities

    Cryptography

    Applied cryptography for secure systems - from wallet custody and key management to integrity, signing, and encryption at scale.

    Custody · HSM · signing

    • Digital signature algorithms for authentication and non-repudiation
    • Asymmetric cryptography (RSA, ECC, key exchange, PKI)
    • Symmetric cryptography (AES, key derivation, envelope encryption)
    • Hashing algorithms (SHA-256, SHA-3, HMAC) and integrity verification
    1 more
    • Applied in wallet custody, HSM integrations, and secure key management

    Ready to talk?

    Share your platform, cloud, or blockchain challenge.

    Migration, DevOps, wallet infrastructure, cross-chain integration, or team leadership - we can explore whether there is a fit.

    Discuss your engineering challenge saurabh@saurabhlabs.com