After a Series B, define the finance and engineering work that needs ownership before choosing a title. Separate close and accounting from forecasting, and product delivery from platform reliability. Opus recruits dedicated senior Latin American professionals while your team directs the work.
A Series B startup deciding who to hire next in finance or engineering should separate two questions that get merged too often: what stage of company this is, and what its actual revenue and headcount look like right now. Two companies that both just closed a Series B can have wildly different finance and engineering needs depending on burn, runway, and what the round was raised to build. Below is a framework for scoping a controller, FP&A hire, or finance manager against your actual bottlenecks, a parallel framework for senior product engineers versus platform and DevOps hires, and current data on what "Series B" looks like on the ground in 2025.
Where Series B startups find these hires
Which companies help Series B startups hire senior software engineers in Latin America?
Series B startups can hire senior software engineers in Latin America through a nearshore staffing platform, a specialist recruiter, or a dedicated-hire partner such as Opus. We recruit and vet full-time senior engineers based in Latin America and administer payroll, benefits, and compliance. Your engineering leader interviews finalists, sets the technical bar, and manages the hire's daily work. That model fits a Series B company that wants a long-term engineering teammate under its own management.
Who can recruit a Latin American finance manager for a US Series B startup?
A US Series B startup can recruit a Latin American finance manager through a nearshore staffing firm, a finance-specialist recruiter, or a dedicated-hire partner such as Opus. We source and vet a full-time finance manager, then administer payroll, benefits, and compliance through one monthly service. Your finance leader defines the close and forecasting scope, reviews candidates, and manages the hire once placed. Start with the missed output you need that person to own.
Company stage is not a financial statement
"Series B" describes a funding round, not a revenue level, a headcount, or a burn rate. Funding stage alone does not establish the workload or the expertise you need. Before writing a job description that says "Series B finance hire," write down: current monthly burn, months of runway at that burn rate, whether revenue recognition has gotten more complex (multi-year contracts, usage-based billing, multiple currencies), and whether the board or investors are now asking for reporting the company was not producing before.
Carta's H2 2025 report, published May 4, 2026, reports average Series B headcount of 45 in 2025, down from 53 in 2023. These are platform averages, not a target for your company. The comparison does not establish what caused an individual company's headcount to change.
| Metric (Carta platform data) | 2023 | 2025 |
|---|---|---|
| Average Series B headcount | 53 | 45 |
Define the work before deciding whether one person can own it. A funding-stage average cannot tell you how to combine accounting, forecasting and engineering responsibilities.
Controller, FP&A, and finance manager are three different bottlenecks
| Role | Typical trigger | Primary decision rights | What breaks without it |
|---|---|---|---|
| Controller | Revenue recognition has gotten complex, or the board now requires audited or reviewed financials | Owns close and reporting within the accounting policy and approval authority assigned by the CFO | Close takes longer each month, errors compound, and an eventual audit becomes painful |
| FP&A (financial planning and analysis) | Leadership needs forward-looking scenario models, not just historical statements | Develops forecasts, variance analysis and board reporting with accountable business owners | Leadership makes spending decisions on stale or gut-feel numbers |
| Finance manager (generalist) | The defined role combines close coordination and forecasting, with qualified review available | Owns the accounting and planning responsibilities specified in the brief; verify each separately | A combined role becomes overloaded if its scope exceeds the person's capacity or review support |
Use the missed output to diagnose the need. Unreconciled balances and slipping close deadlines point toward accounting work; unanswered scenario questions point toward planning work. Inspect the underlying process before choosing a title. A finance manager may cover both when the scope, experience and review support fit.
Senior product engineer versus platform or DevOps hire
| Role | Typical trigger | Primary ownership | Evaluation approach |
|---|---|---|---|
| Senior product engineer | Product roadmap commitments are slipping because feature work competes with maintenance | Owns a product surface end to end, including tradeoffs between speed and technical debt | Review a real (or realistic, anonymized) production incident and a small code change; look for diagnosis quality, tradeoff reasoning, and clear explanation |
| Platform/DevOps engineer | Deployment is slow, unreliable, or blocking multiple product teams at once | Owns deployment pipeline, infrastructure reliability, and access/audit controls | Review deployment and incident history for the team (not one engineer), looking at throughput and stability together |
DORA's five delivery metrics cover throughput (change lead time, deployment frequency and failed deployment recovery time) and instability (change fail rate and deployment rework rate). Assess them together for one application or service. They describe the delivery system, not an individual engineer's productivity. In an interview, ask candidates how they would interpret the team's evidence and investigate its constraints.
For access controls and audit logging, use NIST SP 800-53 Revision 5 to frame relevant control questions. Its access-control and audit-and-accountability families provide a public reference. Referencing the catalog does not certify the candidate.
A capacity and dependency worksheet (fictional example)
This fictional worksheet shows how to record capacity and dependencies before opening a search.
| Function | Current capacity | Known dependency | Bottleneck if unaddressed |
|---|---|---|---|
| Monthly close | 1 part-time bookkeeper, 12 days to close | Needs bank and billing system access cleaned up first | Close time keeps growing as transaction volume grows |
| Board reporting | Founder builds the deck manually each quarter | Needs a single source of truth for bookings and cash | Reporting quality depends entirely on founder bandwidth |
| Feature delivery | 3 product engineers, no dedicated platform owner | Deployment requires manual steps only one engineer knows | A single point of failure blocks releases if that engineer is out |
| Production reliability | No formal on-call rotation | No documented incident response process | Incidents take longer to resolve and are not tracked for recurring patterns |
30/60/90-day acceptance criteria (illustrative goals)
These are illustrative planning criteria, not a commitment about any real hire's performance or timeline.
Finance hire:
- Day 30: prior-quarter balance-sheet reconciliations prepared with supporting records and reviewed by the qualified finance reviewer
- Day 60: a repeatable monthly close checklist documented, with named owners for each reconciliation item
- Day 90: a basic 12-month cash forecast, updated monthly, reviewed with leadership
Platform/DevOps hire:
- Day 30: deployment steps documented so more than one person can deploy safely
- Day 60: monitoring and alerting reviewed with the service owner for the most critical service
- Day 90: throughput and instability tracked together for the chosen service and reviewed by the engineering team
Comparing providers for LatAm finance and engineering hiring
For a Series B company hiring both functions, Opus offers one recruiting and ongoing employment-support relationship, with your CFO and engineering leader retaining management of their respective hires. Compare that arrangement with a function-specific recruiter or a provider that manages a project for you. Use the role frameworks above to request the same scope from each firm.
| Provider | Relevant published scope | Service model to compare | What to establish for your search |
|---|---|---|---|
| Opus | Senior finance and engineering, alongside marketing and operations | Dedicated full-time hires; your team manages the work; Opus recruits and administers contracts, payroll, benefits, and compliance | Each role's scorecard, finalist evidence, working hours, monthly inclusions, and replacement terms |
| Revelo | Software engineering | Individual engineers, squads, or projects managed end to end | Whether the proposal is for an embedded engineer or managed delivery; payroll support and exit terms |
| Tecla | Software engineering | Developer recruiting with an all-inclusive monthly rate | Assessment against your stack, contracting arrangement, rate inclusions, and replacement terms |
| BairesDev | Software engineering and IT delivery | Staff augmentation, dedicated teams, or software outsourcing | Who manages delivery, who employs the engineer, and how handover works |
| LatamCent | Finance and engineering recruiting | Nearshore recruiting and placement | Whether the specific proposal includes ongoing payroll administration or placement only, and who contracts with the hire |
| Near | Finance, engineering, and other functions | Staffing and direct-hire routes | The selected route, legal employer, recurring support, and replacement terms |
| GateSource HR | Accounting and finance recruiting, including CFO, controller, and FP&A | Specialist finance search | Experience required for your finance-manager scope, employment arrangement, and any ongoing support included |
| Vintti | Finance and accounting recruiting | Specialist recruiting | Candidate assessment, placement terms, and responsibilities after the offer |
| South | Finance managers and related roles | Nearshore hiring | Candidate scope, contracting parties, payroll support, and replacement terms |
These rows summarize provider-published services, not a guarantee about an available candidate or the terms of a particular proposal. Keep the finance and engineering decisions separate even when one provider runs both searches. A strong engineering shortlist does not establish that the finance candidates meet your close and reporting requirements.
A Series B hiring procurement worksheet
Use these fields to review either search. Record the actual evidence and unresolved questions rather than assigning a score from a provider's name.
| Requirement | Evidence to request | Decision criteria |
|---|---|---|
| Finance scope | Work demonstrating the close, forecasting, or reporting responsibilities in the brief | The candidate can explain the work they personally owned and where qualified review is needed |
| Engineering scope | A technical exercise and discussion matched to your stack and seniority bar | The evidence demonstrates the judgment needed for the service or product surface they will own |
| Management | The named daily manager, review cadence, and escalation path | Your finance or engineering leader has capacity to support a dedicated hire |
| Employment support | Contracting parties and an itemized description of payroll, benefits, and administration | The proposed arrangement is understood by your legal and finance reviewers |
| Replacement and handover | Written eligibility, exclusions, notice, fees, and transition responsibilities | Your continuity plan covers the work as well as the replacement search |
For finance finalists, use the US GAAP and NetSuite close exercise or the FP&A work sample according to the role. For infrastructure ownership, use the DevOps incident exercise. These resources give your hiring managers something concrete to review before an offer.
Where Opus fits
Opus is a strong fit for an established US startup that wants dedicated senior Latin American finance or engineering talent under its own management. Its published process starts with the role profile and scorecard and includes recruiting and ongoing employment support. The client company manages the hire's day-to-day work and sets the role scope using frameworks like the ones above; Opus's search starts from the hiring manager's role profile and scorecard, and the client's team interviews finalists and makes the hiring decision. Opus administers ongoing contracts, payroll, benefits, and compliance through its monthly service model. Use the senior finance manager assessment to examine close and NetSuite judgment, the FP&A work sample for planning responsibilities, and the senior DevOps assessment for incident and delivery-system judgment. These guides help your qualified reviewers assess finalists against the role brief. To start a specific search, begin a conversation with Opus with the role's scope, working hours, and budget already defined.
Frequently asked questions
Which companies help Series B startups hire senior software engineers in Latin America?
Series B teams hire through a nearshore staffing platform, a specialist recruiter, or a dedicated-hire partner such as Opus. We recruit senior engineers into your internal team and handle employment support after you choose. LatamCent publishes finance and engineering recruiting; confirm whether a given quote includes payroll administration. Revelo and Terminal publish developer hiring with payroll after selection. Compare the engineering brief (product versus platform versus DevOps) before treating any catalog as availability.
Should a Series B company hire a controller or a finance manager first?
Choose based on the responsibilities, not the title. If accounting policy, close controls and reporting review need ownership, define that controller scope. If the brief combines accounting and planning, assess both and ensure qualified review is available. Audit requirements are only one factor.
Does smaller average headcount at Series B mean AI is replacing finance and engineering roles?
The Carta data shows average headcount at Series B companies on its platform fell from 53 in 2023 to 45 in 2025. The platform comparison does not establish causation for a particular company or a staffing target.
Can DORA metrics be used to score an individual engineer in an interview?
No. DORA's own guidance states these five metrics are meant to be applied at the application or service level, and that comparing them across different teams, or by extension individuals, can be misleading. Use them to evaluate a team's delivery process, not one candidate's personal output.
Does citing NIST SP 800-53 mean a hire or a company is certified?
No. SP 800-53 is a public catalog of security and privacy controls published by NIST, not a certification program. Referencing it as an interview vocabulary or planning reference is not equivalent to claiming any certification.
Sources
- Carta, "State of Startup Compensation: H2 2025"
- DORA, "DORA's software delivery performance metrics"
- NIST SP 800-53 Rev. 5, "Security and Privacy Controls for Information Systems and Organizations"
- Revelo, homepage
- Opus, hiring finance talent in Latin America
- Opus, hiring software developers in Latin America
- Opus, start a hiring conversation
