1038 - Software Engineer (Observability Migration) · Sr · Remoto · LATAM

Disclaimer – Must read: Commitment & Focus This role requires full-time dedication, with clear priority given to Darwoft projects during the established working hours. It is not compatible with other full-time professional engagements. Any additional professional activities must be disclosed in advance and must not interfere with the responsibilities or working hours of this role.

About Darwoft

Darwoft is a software factory that develops custom software solutions and provides IT staff augmentation services for international clients, primarily in the United States and Latin America. We partner with startups and high-growth companies to build high-impact digital products. Our culture is people-first, focused on technical quality, long-term relationships, and a collaborative mindset. We combine technical excellence with human proximity.

Senior Software Engineer — Observability Migration | Contractor General

General Information

- Location: Remote (Global)
- Contract Type: Contractor
- Industry / Project: Fintech / Conversational AI & Infrastructure
- Time Zone: Coordination with US / LATAM / Global teams
- English Level: Advanced (C1)

About the Role

We are seeking a Senior Software Engineer to support and execute a critical observability migration. In this role, you will lead the transition of our application and infrastructure telemetry from New Relic to a modern, OpenTelemetry (OTel) Collector-based architecture. You will be responsible for re-instrumenting applications, updating infrastructure manifests, validating telemetry outputs, and ensuring seamless monitoring coverage across our high-scale ecosystem without compromising operational visibility.

Key Responsibilities

- Migrate existing application instrumentation, tracing, and telemetry configurations from New Relic to OpenTelemetry.
- Update YAML configuration files, environment variables, and deployment manifests according to established architecture standards.
- Execute unit tests and validation suites to verify that telemetry is accurately generated, transformed, and exported to target backends.
- Perform telemetry gap analysis, comparing existing New Relic data against OTel outputs to identify missing traces, metrics, logs, or resource attributes.
- Assist in updating dashboards, monitoring documentation, and troubleshooting guides to reflect the OTel architecture.
- Investigate telemetry collection and export errors, identifying root causes and collaborating with core platform engineers on complex edge cases.
- Maintain clear tracking and reporting of implementation progress, edge cases, and potential migration risks.

Requirements

Must-Have:





- Proven experience in software engineering with proficiency in at least one modern language (Java, Python, Go, or JavaScript/TypeScript).
- Hands-on experience with OpenTelemetry (OTel) concepts, including distributed tracing, metrics, logs, and OTel Collector configurations.
- Deep experience with cloud observability paradigms and transitioning off legacy platforms like New Relic.
- Solid understanding of HTTP, APIs, environment-based configurations, and reading/modifying complex YAML/JSON manifests.
- Strong background in software testing, debugging, log analysis, and validating high-cardinality telemetry data.
- Familiarity with modern software delivery workflows (Git, PRs, CI/CD pipelines).

Nice-to-Have:

- Experience operating or configuring OTel Collectors in Kubernetes or containerized environments.
- Knowledge of FinOps and cost-optimization strategies related to telemetry ingestion rates.

Key Deliverables & Success Criteria

- Execution: Successfully updated application instrumentation, validated OTel Collector configs, and verified end-to-end telemetry delivery to designated backends.
- Documentation: Updated technical documentation, migration checklists, and runbooks.
- Quality & Continuity: Zero removal of critical monitoring coverage during the migration window, with all pull requests passing automated tests and code reviews.

What We Offer (Contractor)

- Contractor agreement with payment in USD.
- 100% remote work in an international setting.
- Access to Argentine public holidays.
- Direct involvement in modernizing core platform observability for a high-growth fintech ecosystem.
- Professional development, learning platforms, and referral programs.

Explore this and other opportunities at:

Our client is a remote product studio that builds MVPs and custom software for startups and companies past the idea stage. Clients hire them for a fixed-scope MVP or for a product team billed by the two-week sprint, and the whole team uses AI coding tools every day.

They've been at it since 2020 and were profitable in 2025, with a 30% net margin. After building their own AI systems, they tripled monthly revenue with the same team size. Clients rate them 4.9 out of 5 in verified reviews, and the startups they build for have raised more than $25M in venture funding.

Your Role

You’ll join the team building workflow software for one of the studio’s clients:



a live product that needs new workflow features while the existing ones keep running. The client’s own engineers commit to the same repo, so every new table, permission and workflow goes in next to code someone else is changing. The weight is on the server side, from the SQL database on Azure up through the API, and you also build the React and TypeScript screens that sit on top.

AI coding tools draft most of the specs, tests and migrations. You direct them, read every diff line by line, and answer for what merges. If you’d rather write most of the code by hand, this probably isn’t the right seat.

You report to the studio’s leadership and work day to day with the lead developer and the product manager, who sets the acceptance criteria for each sprint. Success means delivering four to five features per two-week sprint, each verified before merge, and owning one area end to end (such as the task engine or the legacy migration) without breaking a live feature.

You Bring:

4+ years building full-stack web applications and releasing them to production

Experience working in a codebase you didn’t write, learning its conventions before changing it

Hands-on work on workflow software where different user roles see different data, with approvals, task queues or state machines and an audit log or versioned history

React, TypeScript and SQL on Azure, including schema design and migrations

Daily use of Cursor, Claude Code or a similar AI coding tool on production work, with tests and CI behind it

Clear written and spoken English

Experience delivering in fixed-scope sprints with branches, code review and feature flags

Bonus Points:

Work in a regulated setting such as finance, health or insurance

A migration from a legacy system, with reconciliation and duplicate review

Time as an outside vendor committing to a client’s repo

Project rules, custom prompts or agent setups for AI coding tools that your team adopted

Spanish, since the platform is bilingual

What's Offered:

Fully remote contractor role from LATAM, full time at about 40 hours a week

Core hours in US time zones, so your day overlaps with the lead developer and the product manager

A area of the product to own end to end, with your schema designs reviewed by the lead developer and the client’s engineers

A team where AI-first delivery is already the daily routine, with tests, CI and feature flags as part of the normal process

A start in early November

Interview Process:

- Intro Call: 30 minutes with atomic HR on your background and goals
- Leadership Screening: A short call, possibly with an async part first
- Product and Developer Conversation: How you take features from acceptance criteria to merge
- Take-Home Test: One feature like the real scope, built and checked

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