As a Software Engineer at Ivy Partners, you play a foundational role in building, scaling, and maintaining the core technological solutions that drive business operations forward. You are responsible for designing robust software architectures, developing high-performance applications, and collaborating across multidisciplinary teams to deliver impactful products. Your work directly influences how internal systems and external client platforms perform, ensuring reliability, security, and scalability in every deployment. The scope of engineering at Ivy Partners spans diverse domains, ranging from modern full-stack development with technologies like.NET and Angular to specialized platform engineering, DevSecOps, automation, and 3D development. Whether you are optimizing network infrastructure, implementing cloud solutions, or building automated workflows, your contributions help shape the technological backbone of the organization. You will operate in dynamic environments across locations such as Lisbon and Porto, tackling complex engineering challenges that require both creative problem-solving and rigorous technical execution. You will frequently partner with product managers, system architects, and operations teams to translate business requirements into clean, maintainable code. Expect a culture that values innovation, technical excellence, and continuous learning, where you are encouraged to take ownership of your projects and drive them from conception to production.
Talent Acquisition Screening
reportedInitial screening focusing on your background, career aspirations, and cultural fit.
What to demonstrate
- Initial screening focusing on your background, career aspirations, and cultural fit
- Depth in .NET
How to prepare
- Answer aloud and timed: What are your primary strategies for managing state in enterprise frontend applications built with Angular?
- Answer aloud and timed: Can you explain how you handle asynchronous programming, dependency injection, and middleware configuration in.NET applications?
Technical Evaluation
reportedDeep technical assessment that may include coding, system design, or a technical panel interview.
What to demonstrate
- Deep technical assessment that may include coding, system design, or a technical panel interview
- Depth in .NET
How to prepare
- Answer aloud and timed: How do you design and implement secure CI/CD pipelines within a DevSecOps framework?
- Answer aloud and timed: What methodologies do you use for optimizing relational database queries and managing data migrations at scale?
Client-Readiness Assessment
reportedFinal stages focusing on consulting capabilities and alignment with senior leadership.
What to demonstrate
- Final stages focusing on consulting capabilities and alignment with senior leadership
- Depth in .NET
How to prepare
- Answer aloud and timed: How do you approach API design, versioning, and documentation in microservices architectures?
- Answer aloud and timed: How would you architect a highly available, fault-tolerant platform infrastructure supporting multiple regional offices?
PracHub editorial advice for the preparation topics above.
Communicate your thought process
Interviewers at Ivy Partners care as much about how you think as they do about the final answer. Always talk through your assumptions, trade-offs, and alternative approaches before diving into coding or design.
Brush up on fundamentals
Ensure your core computer science knowledge—including data structures, algorithms, and concurrency principles—is sharp, as these form the bedrock of technical problem-solving.
Tailor your stories for behavioral rounds
Prepare concrete examples using the STAR method (Situation, Task, Action, Result) that highlight your teamwork, conflict resolution, and leadership capabilities.
Ask insightful questions
Use the final minutes of your interview to ask meaningful questions about team culture, engineering bottlenecks, and deployment practices to demonstrate your genuine interest in the role.
Choose a category, try a prompt, then open its approach, worked solution or follow-up when you need it.
Can you explain how you handle asynchronous programming, dependency injection, and middleware configuration in
Can you explain how you handle asynchronous programming, dependency injection, and middleware configuration in.NET applications?
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
How do you manage shifting priorities and multiple concurrent engineering tasks without compromising quality?
How do you manage shifting priorities and multiple concurrent engineering tasks without compromising quality?
Approach
- Say what the runtime actually does before reasoning about the code.
- Name what is shared across threads and what owns each piece of state.
- Identify the window where an invariant is briefly untrue.
- Distinguish a value from a reference to it, and say which one you handed out.
Follow-up
- What happens if two callers reach this at the same time?
- Where could this allocate more than you expect?
Identify the heaviest tenants in a five-minute window under memory pressure
The edge service handles about 3,000 requests per second across roughly 50,000 tenants, peaking near 9,000. Expose the 50 heaviest tenants by request count over the trailing five minutes so limits can be tightened before one tenant's backfill starves the fleet. You may not retain five minutes of raw records. Give the exact solution and its memory, then the bounded-memory approximation with its error stated as a formula, and say which you would ship and at what tenant cardinality that choice changes.
Approach
- Do the exact version first, because it is affordable at this cardinality: a ring of 300 one-second counters per tenant, advanced lazily, is 1,200 bytes of counters per tenant and roughly 60 to 90 MB for 50,000 tenants with overhead. Carry a running total and subtract the bucket you overwrite so a window read is O(1) rather than 300 adds.
- Extract the top 50 with a size-k min-heap over the tenant sums: O(d log k) for d tenants, against O(d log d) to sort them all. Maintaining the heap continuously instead of on query requires a tenant-to-heap-index map, because incrementing a count already inside the heap means sifting from a known position, and without that map you rebuild the heap on every request.
- State the approximation precisely rather than gesturing at sketches. Misra-Gries with m counters retains every item whose true count exceeds N/(m+1), and each retained count underestimates the truth by at most N/(m+1). With m = 1,000 and N = 900,000 requests in the window the error is roughly 900 requests, which is fine for spotting a tenant sending 50,000 and useless for ranking two tenants 200 apart.
- Say what breaks when the window slides: Misra-Gries and Space-Saving are insert-only and cannot be decremented as records age out. The workable construction is one summary per sub-window, say ten seconds, with 30 summaries merged at query time, and the merged error is the sum of the per-summary errors, so the bound degrades linearly in the number of sub-windows.
Follow-up
- The heaviest tenant is heavy because of one export job rather than user traffic. Should the limiter treat those as the same tenant?
- Two tenants sit tied at the boundary of the top 50. Does your answer flap, and does the flapping matter?
Replace offset paging on the resource feed with keyset
resource holds resource_id, tenant_id, owner_user_id, title, body_ref, version, status ('draft','active','archived','deleted'), created_at, updated_at, deleted_at, with an index on (tenant_id, status, updated_at DESC, resource_id DESC). The listing endpoint returns active resources for one tenant, newest update first, 50 per page, today with LIMIT 50 OFFSET n. Tenants reach page 400 and rows are created while they read. Write the keyset query, define what the cursor carries and how it is encoded, and say which part of the index each predicate uses. Assume PostgreSQL 16.
Approach
- Name the two failures separately. OFFSET 20000 makes the server produce and discard 20,000 rows, so page cost grows with depth rather than with page size. Independently, any write that changes how many rows sort above the offset moves the window between two fetches, and the direction decides which anomaly you get: an insert lands at the head of updated_at DESC and pushes already-returned rows down past the boundary, so they are returned a second time; a delete above the offset, or a row whose updated_at is bumped above the cursor, pulls rows up and one is never returned at all. Nothing in the response reveals either.
- Write the seek: WHERE tenant_id = $1 AND status = 'active' AND (updated_at, resource_id) < ($2, $3) ORDER BY updated_at DESC, resource_id DESC LIMIT 50. The row-value comparison is one index range rather than a disjunction, and both columns are NOT NULL, which is what makes that comparison well defined.
- Map each predicate onto the index: tenant_id and status are equality on the leading columns, (updated_at, resource_id) is the range, and the ORDER BY matches the index order so no Sort node appears and the scan stops after 50 rows. The DESC in the definition only matters for mixed directions — a plain ascending btree on the same columns is read backwards for this query.
- Put both sort columns in the cursor and nothing the client can tamper with into another tenant: base64 of (updated_at, resource_id), validated server-side, with tenant_id taken from the principal.
Follow-up
- The client asks for 'jump to page 400'. What do you offer instead, and what does the honest version cost?
- Sort order becomes user-selectable across four columns. How many indexes is that, and which would you refuse to add?
Find version gaps and relay lag with window functions
outbox_event holds event_id, aggregate_type, aggregate_id, aggregate_version, event_type, payload, status ('pending','published','dead'), attempts, created_at, published_at. A projection is missing rows and you must decide whether the relay skipped events or the consumer dropped them. Write three queries over the last seven days: one listing every aggregate_id whose published aggregate_version sequence has a hole, one giving per-day counts with a running total, and one returning the newest published event per aggregate. For each, say where the window function is evaluated relative to WHERE and LIMIT. PostgreSQL 16.
Approach
- Gaps: compute lead(aggregate_version) OVER (PARTITION BY aggregate_id ORDER BY aggregate_version) in a subquery, then filter next_version <> aggregate_version + 1 in the outer query. Window functions are evaluated after WHERE, GROUP BY and HAVING and before the outer ORDER BY and LIMIT, so the predicate cannot sit in the same WHERE clause and PostgreSQL 16 has no QUALIFY.
- Say what the seven-day filter does to the answer: it truncates every partition, so the first row per aggregate has no predecessor inside the window and a hole spanning the boundary is invisible. Widen the window, or join to resource.version as the authority for the true maximum.
- Running total: SELECT date_trunc('day', created_at) AS d, count() AS n, sum(count()) OVER (ORDER BY date_trunc('day', created_at) ROWS UNBOUNDED PRECEDING). An aggregate inside a window call is legal because grouping runs before windowing. The grouping key is unique per row here so ROWS and RANGE agree, but write the frame anyway — over ungrouped rows with tied timestamps the default RANGE frame pulls in every peer row and the total jumps.
- Newest per aggregate: DISTINCT ON (aggregate_id) ... ORDER BY aggregate_id, aggregate_version DESC is the cheap PostgreSQL-only form when an index matches that order; row_number() OVER (PARTITION BY aggregate_id ORDER BY aggregate_version DESC) = 1 is the portable form and needs a subquery for the same evaluation-order reason as the gap query.
Follow-up
- Relay failover redelivers events. Does a duplicate break the gap query, and how would you detect one from this table alone?
- Turn the gap check into a continuous monitor rather than a query someone runs after an incident. What does it watch?
What are your primary strategies for managing state in enterprise frontend applications built with Angular?
What are your primary strategies for managing state in enterprise frontend applications built with Angular?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How do you design and implement secure CI/CD pipelines within a DevSecOps framework?
How do you design and implement secure CI/CD pipelines within a DevSecOps framework?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
What methodologies do you use for optimizing relational database queries and managing data migrations at scale
What methodologies do you use for optimizing relational database queries and managing data migrations at scale?
Approach
- Clarify what is being asked and what a complete answer contains.
- State your assumptions explicitly before working the problem.
- Say what you would check first and why it is the highest-information step.
- Work from the requirement backwards to the design.
Follow-up
- What assumption would you test first?
- How would you know your answer was wrong?
How do you approach API design, versioning, and documentation in microservices architectures?
How do you approach API design, versioning, and documentation in microservices architectures?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
How would you architect a highly available, fault-tolerant platform infrastructure supporting multiple regiona
How would you architect a highly available, fault-tolerant platform infrastructure supporting multiple regional offices?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Walk through your approach to designing a scalable multi-tenant web application from scratch.
Walk through your approach to designing a scalable multi-tenant web application from scratch.
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
How do you ensure high performance, low latency, and secure data transmission across complex network topologie
How do you ensure high performance, low latency, and secure data transmission across complex network topologies?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
What factors do you consider when choosing between relational and non-relational data storage solutions for a
What factors do you consider when choosing between relational and non-relational data storage solutions for a new project?
Approach
- Fix the scope first: who calls this, how often, and what they do when it fails.
- Name the read and write paths separately; they rarely have the same bottleneck.
- Choose a partition key and say what query it makes expensive.
- State the consistency you need, and where you are willing to be stale.
Follow-up
- What breaks first when traffic grows ten times?
- How does this behave when that dependency is down for an hour?
Walk us through a scenario where a third-party API integration failed unexpectedly and how you mitigated the i
Walk us through a scenario where a third-party API integration failed unexpectedly and how you mitigated the impact.
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
What steps do you take when evaluating a new external library or tool for integration into an existing stack?
What steps do you take when evaluating a new external library or tool for integration into an existing stack?
Approach
- Say who the caller is and what they do when the call fails halfway.
- Define the identity of a request so a retry cannot double-apply it.
- Separate accepted, pending, failed and confirmed; they are different facts.
- Design the error taxonomy before the success shape; callers branch on it.
Follow-up
- What happens if the caller retries after a timeout?
- How does a client discover it is on an old version of this contract?
How do you approach debugging intermittent concurrency issues or race conditions in backend services?
How do you approach debugging intermittent concurrency issues or race conditions in backend services?
Approach
- Establish what changed and when, before forming any theory.
- Pick a bisection that eliminates candidates whichever way it turns out.
- Check the instrumentation before believing the symptom.
- Separate the trigger from the cause; the deploy is rarely the bug.
Follow-up
- What would you look at first, and what would it rule out?
- How would you tell a cause from a coincidence here?
How do you prioritize technical debt when facing aggressive project delivery timelines?
How do you prioritize technical debt when facing aggressive project delivery timelines?
Approach
- Establish what changed and when, before forming any theory.
- Pick a bisection that eliminates candidates whichever way it turns out.
- Check the instrumentation before believing the symptom.
- Separate the trigger from the cause; the deploy is rarely the bug.
Follow-up
- What would you look at first, and what would it rule out?
- How would you tell a cause from a coincidence here?
Built from the rounds and topics Ivy Partners candidates report.
Prepare, practise & reflect
One practical outcome each day. Spend longer where you need it.
0 / 7 done01Map the Ivy Partners loop
- Write out the reported sequence: Talent Acquisition Screening, Technical Evaluation, Client-Readiness Assessment.
- For each round, write one sentence on what it is judging, from the description above, and mark the one you are least ready for.
Deliverable: A one-page map of the 3 reported rounds, with the weakest marked.
02Work .NET
- Spend the session on .NET, which Ivy Partners candidates report being tested on.
- Write one worked example in .NET and time yourself on it.
Deliverable: One timed worked example in .NET.
03Work C#
- Spend the session on C#, which Ivy Partners candidates report being tested on.
- Write one worked example in C# and time yourself on it.
Deliverable: One timed worked example in C#.
04Work Full-Stack Development
- Spend the session on Full-Stack Development, which Ivy Partners candidates report being tested on.
- Write one worked example in Full-Stack Development and time yourself on it.
Deliverable: One timed worked example in Full-Stack Development.
05Answer out loud: Technical and Domain Expertise
- Answer aloud, timed: What are your primary strategies for managing state in enterprise frontend applications built with Angular?
- Answer aloud, timed: Can you explain how you handle asynchronous programming, dependency injection, and middleware configuration in.NET applications?
Deliverable: Spoken answers to 2 reported Technical and Domain Expertise question(s), under time.
06Answer out loud: System Design and Architecture
- Answer aloud, timed: How would you architect a highly available, fault-tolerant platform infrastructure supporting multiple regional offices?
- Answer aloud, timed: Walk through your approach to designing a scalable multi-tenant web application from scratch.
Deliverable: Spoken answers to 2 reported System Design and Architecture question(s), under time.
07Answer out loud: Problem-Solving and Troubleshooting
- Answer aloud, timed: Describe a time when you had to diagnose and resolve a critical performance bottleneck in a production environment.
- Answer aloud, timed: How do you approach debugging intermittent concurrency issues or race conditions in backend services?
Deliverable: Spoken answers to 2 reported Problem-Solving and Troubleshooting question(s), under time.
Expand any day for tasks and deliverables. Your progress is saved on this device.
Behavioural rounds judge the decision you made and what it cost.
How do you handle disaster recovery, logging, and real-time monitoring in distributed environments?
How do you handle disaster recovery, logging, and real-time monitoring in distributed environments?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe a time when you had to diagnose and resolve a critical performance bottleneck in a production environ
Describe a time when you had to diagnose and resolve a critical performance bottleneck in a production environment.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Tell me about a time you had to explain a complex technical concept to a non-technical stakeholder.
Tell me about a time you had to explain a complex technical concept to a non-technical stakeholder.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
How do you handle disagreements with a team member regarding architectural choices or code quality standards?
How do you handle disagreements with a team member regarding architectural choices or code quality standards?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
Describe a situation where you took the initiative to improve an internal development process or tool.
Describe a situation where you took the initiative to improve an internal development process or tool.
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
What motivates you to stay updated with rapidly evolving technology stacks and engineering best practices?
What motivates you to stay updated with rapidly evolving technology stacks and engineering best practices?
Approach
- Pick a story where you made the decision, not one where you watched it.
- State the situation in two sentences and spend the rest on the reasoning.
- Give the blast radius: what could have broken, and what you measured.
- Name the disagreement and how you resolved it with evidence.
Follow-up
- What would you do differently if you ran that again?
- How did you know your change caused the improvement?
- 01
How do you handle disaster recovery, logging, and real-time monitoring in distributed environments?
- 02
Describe a time when you had to diagnose and resolve a critical performance bottleneck in a production environment.
- 03
Tell me about a time you had to explain a complex technical concept to a non-technical stakeholder.
- 04
How do you handle disagreements with a team member regarding architectural choices or code quality standards?
How difficult are the technical interviews at Ivy Partners?
The interviews are designed to be rigorous and realistic, testing both your foundational knowledge and your practical problem-solving skills. While challenging, they focus on real-world engineering scenarios rather than trick questions, rewarding candidates who can clearly communicate their reasoning.
Ivy Partners Software Engineer candidate reports ↗What is the typical timeline from the initial screen to receiving an offer?
The entire process generally takes between three to four weeks, moving efficiently from recruiter screenings through technical assessments and final leadership interviews, though timelines can vary based on scheduling and role urgency.
Ivy Partners Software Engineer candidate reports ↗Are remote or hybrid working options available for engineering roles?
Yes, Ivy Partners offers flexible working arrangements depending on the specific team and location, with physical hubs operating in cities like Lisbon and Porto alongside hybrid collaboration models.
Ivy Partners Software Engineer candidate reports ↗What distinguishes successful candidates from those who fall short?
Successful candidates stand out by demonstrating structured problem-solving, proactively discussing trade-offs, and showing strong communication skills, whereas candidates who struggle often code in isolation without explaining their assumptions.
Ivy Partners Software Engineer candidate reports ↗How should I prepare for the system design portion of the interview?
Focus on reviewing core distributed systems concepts such as caching, load balancing, database scaling, and fault tolerance. Practice sketching out architectures on a digital whiteboard while explicitly addressing latency, scalability, and failure modes.
Ivy Partners Software Engineer candidate reports ↗What topics does Ivy Partners test in interviews?
Ivy Partners interviews most often cover Risk Management, IT Project Management, Data & Visualization (digital transformation stream), Security Engineering, and Large Language Models (LLMs). The exact emphasis depends on the specific role you apply for.
Ivy Partners Software Engineer candidate reports ↗Sources & methodology 3 sources ↗
No official company page is cited. Rounds and questions come from candidate reports and PracHub editorial material; each source shows the date it was read.
- 01Ivy Partners Software Engineer candidate reports ↗
Company-reported rounds, questions and FAQ.
Candidate reports · Accessed 2026-09-22 - 02PracHub Software Engineer practice ↗
PracHub practice material, not company-reported.
PracHub page · Accessed 2026-09-22 - 03PracHub preparation framework ↗
PracHub preparation guidance.
PracHub page · Accessed 2026-09-22
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