REST + gRPC APIs
Chi, Echo, Fiber, gRPC-Go. OpenAPI contracts via oapi-codegen, Buf for protobuf governance, per-route SLOs.
Senior engineering · Go
Senior Go engineering for production systems.
Go for systems that need to be fast, predictable, and easy to operate: APIs, gRPC services, control planes, and the kind of infrastructure tooling Go was designed to ship.
- In production
- 2019+
- Senior bench
- 20+ G6/G9 engineers
- Floor
- G6+ on client work
- Engagement
- Outcome-led, not hourly
Why senior, not contractor
Go in production is a different problem than Go on a laptop.
Go is the right tool when latency matters, when ops simplicity matters, and when the cognitive overhead of generics-everywhere TypeScript is hurting more than it helps. Prosigns ships Go for high-throughput APIs, gRPC service meshes, control-plane components, custom Kubernetes operators, and CLI tooling, the workloads where Go's small surface area and predictable runtime are the value, not the limitation.
Senior floor
G6+ minimum
Bench depth
20+ G6/G9 engineers
In production
2019+
Engagement
Outcome-led SOW
Where Go ships
6 sub-areas, grounded in shipped engagements.
Specific applications of Go we’ve built and operate. Every example below maps to a real engagement, not a bullet on a stack-card.
01 02 Kubernetes operators + control planes
Custom operators with Operator SDK / Kubebuilder, controller-runtime, CRD design discipline, and admission webhooks where they fit.
03 Event-driven services
Kafka (Sarama / Confluent), NATS, Redis Streams. Idempotent consumers, DLQ wiring, replay tooling.
04 CLI + ops tooling
Cobra-driven CLIs, single-binary distribution, cross-compilation for darwin / linux / windows, Goreleaser-managed releases.
05 High-throughput data services
ETL workers, indexers, aggregators where Go's GC and concurrency primitives outclass JVM / Node alternatives.
06 Migrations onto Go
Replatforming hot-path Python / Ruby services onto Go where the latency or memory profile justifies the rewrite. Selective, not wholesale.
Stack depth
The Go ecosystem, owned.
Frameworks, libraries, and runtime tools the bench has shipped in production. Not a CV-skim, a working depth.
Web frameworks
- Chi
- Echo
- Fiber
- Gin
- net/http
Protocols + APIs
- gRPC-Go
- Connect
- Buf
- oapi-codegen
- GraphQL gqlgen
Kubernetes
- controller-runtime
- Operator SDK
- Kubebuilder
- client-go
Data + storage
- sqlc
- pgx
- GORM
- ent
- Bun
Quality + ops
- go test
- Testify
- OpenTelemetry-Go
- Prometheus client
- Goreleaser
Engagement models
Three ways to engage Go engineers.
We don’t bill hourly contractors. Engagements run against outcomes, choose the shape that matches the work.
See engagement models- 01
Fixed-scope
Defined deliverable, fixed price
When the deliverable is clear and the scope is bounded: an MVP, a migration, a discrete platform build. Senior engineering against a written outcome, not against a body count.
- 02
Embedded squad
Senior product team, ongoing
When the work is product-shaped and the cadence is continuous. A senior pod (engineering + design + PM as needed) embedded into your team, with the practice lead co-piloting from HELM.
- 03
Managed services
Steady-state operations
When the system is running and needs ongoing engineering ownership: operations, SLO defense, release management, security and compliance evidence. Monthly retainer against a published SLA.
Selected work
Go engineering that shipped.
Logistics
Route-optimizer control plane in Go for a 1,400-vehicle fleet.
Sub-50msp99 routing decisiongRPC service mesh with Connect transports. Custom Kubernetes operator for fleet-aware autoscaling. NATS for event coordination. Single-binary deployment with zero runtime dependencies.
Duration · 5 months
Brief us
Reply < 4 business hoursHave a Go workload? Send a brief.
Five fields. Goes straight to the practice lead, not an SDR. We’ll reply with a senior engineer’s read on fit, scope, and the engagement model that suits the work.
FAQ
Questions buyers ask.
Everything below also appears in the proposal and the SOW: no surprises after signing.
When is Go the right pick over Node or Python?
Go wins when latency is in the 99th-percentile budget, when ops simplicity matters (single-binary, no runtime), or when concurrency primitives map cleanly to the workload (goroutines + channels for fan-out, etc.). It's the wrong pick for content-heavy CRUD apps or where the team's Go velocity is genuinely lower than their TS / Python velocity.
Generics now that Go has them?
Used judiciously: for genuine generic abstractions (slices, maps, sync primitives). Not as a replacement for interface{} or for over-abstracting domain code. The Go community's restraint with generics is a feature, not a limitation.
Is this staff-aug, or is it engineering-led delivery?
Engineering-led delivery. We don't bill hourly contractors against your JIRA board. Every engagement runs against a defined outcome with a senior engineer accountable from kickoff to operating cutover. If you genuinely need staff-aug, discrete bodies, your management, hourly rates, we'll be honest and route you to a partner that fits.
What seniority floor are we talking about?
G6 minimum (six-plus years in their craft) on every billable hour. Department leads are G9 or G10. We don't flex juniors onto the bench mid-sprint, we don't subcontract to delivery centers, and we don't dilute senior rates with mixed staffing. The bench in the proposal is the bench in production.
How does pricing work?
Three engagement models published at /engagement-models/. Fixed-scope for defined deliverables, embedded squads for ongoing product work, managed services for steady-state operations. Rates depend on seniority, engagement length, and region. Discovery + scoping conversation is free; SOWs are written against deliverables, not bodies.
Where are your engineers based?
Senior-only across Dallas, Doha, Lahore, and Islamabad. We staff against the engagement's needs (timezone, language, regulatory frame), not against arbitrary regional preferences. Most engagements run with a US/EU-aligned core and a follow-the-sun extended bench when the workload warrants it.
Will the engineers I see in the proposal be the engineers shipping the work?
Yes. We name the engineers in the SOW, attach their profiles, and they're on the kickoff. We don't bait-and-switch with senior reviewers and junior execution. If a named engineer needs to roll off the engagement (rare), we surface a replacement from the same seniority tier with explicit handoff.
Talk to a Go lead
Senior Go engineering, accountable from kickoff.
Bring the workload: we’ll bring a senior engineer plus the practice lead most relevant to the work. 30 minutes, no obligation, no junior reps.