Tech Lead – Senior Software Architect

Alongside

Tech Lead/Senior Software Architect for a real-time asset-tracking platform. Leading backend architecture and engineering teams, focusing on distributed systems and API design.

Posted 7/16/2026part-timeRemote • 🇵🇹 PortugalSenior💰 €38 - €40 per hourWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in architecting distributed systems using Microsoft Orleans, with a strong focus on backend development in C#/.NET. Proven ability to lead engineering teams, mentor peers, and ensure high technical quality while collaborating with project management and stakeholders.

Highest-signal resume keywords

Microsoft Orleans ArchitectureC#/.NET Backend DevelopmentRealtime Data ProcessingTeam Leadership and MentoringSecurity-Conscious Architecture

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

API DesignData PipelinesActor-Model Distributed SystemsSystem ArchitectureCode ReviewTechnical DirectionTelemetry Data ProcessingWebSockets

Soft Skills

Communication with StakeholdersTeam CollaborationProblem Solving

Tools & Technologies

CI/CD PracticesStaging Environment Management

Industry Keywords

TelemetrySensor DataSystem HardeningAuthenticationPII Handling

Tech Stack

Tools & technologies

AkkaDistributed Systems.NETNode.js

About the role

Key responsibilities & impact

Own and evolve the architecture of a distributed, actor-model backend (Microsoft Orleans) handling realtime positioning and telemetry data at scale
Set technical direction for the .NET backend: API design, data pipelines, service boundaries
Design the path toward multi-node Orleans clustering as the platform scales
Review code and provide hands-on technical guidance to backend and full stack engineers
Identify and remediate security and architectural risk areas (authentication, data handling, system hardening)
Partner with data/telemetry and QA engineers on ingestion pipeline and analytics architecture decisions
Advise on CI/CD, staging environment, and release practices
Act as engineering team lead: set priorities, unblock the team, and own technical quality across the engineering group
Coordinate closely with the Project Manager on sprint planning, delivery status, and risk/blocker escalation
Join client calls run by the project team, speaking directly to technical progress and tradeoffs when needed
Mentor other engineers, raising the technical bar across the team

Requirements

What you’ll need

5+ years of professional software engineering experience, including senior/lead-level architecture responsibility
Hands-on experience with actor-model distributed systems (Microsoft Orleans strongly preferred; Akka or comparable frameworks considered)
Strong backend expertise in C#/.NET — API design, services, data pipelines at scale
Experience architecting systems that process realtime/streaming data (telemetry, sensor data, WebSockets)
Proven track record leading a small engineering team — code review, mentoring, setting technical direction
Experience working closely with a Project Manager on planning and delivery, including joining client calls to speak to technical topics
Strong written and spoken English — comfortable communicating with both engineers and non-technical stakeholders
Security-conscious architecture practices (authentication, PII handling, system hardening)

Benefits

Comp & perks

Remote work (Portugal-based)
Estimated project duration: 19 weeks
Part-time schedule: 4 hours per day, aligned with Portugal business hours (WET/WEST)
Freelance / Service Agreement
Hourly Rate: 38€ - 40€